21st Bomber Command Tactical Mission Report 317, Ocr

8/6/2019 21st Bomber Command Tactical Mission Report 317, Ocr

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!J. ;I ., -'*lteP1tr .,e.G ~ I n a .., , . . . ...~ . _ - .....--..._.--nUISSION NO.FlO WN 7 AUG 1'45

COpy NO. !

ti,

HEADQUARTERSTWENTIETH ,AIR FORCEAPO 114


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HE/,nrUi.RTERS1\'mTIEI'H AIR F ~ C EI,PO 234T,\CTIC1>l.. MISSION REPffiT

Field Order No. 15 loliuion 110. 317Target : Toyola:1110 ~ v a 1 A r ~ e n a 1 (90.21-1653)

7 J,ugust 1945Table o f C o n t e n t ~

Tactical Narrative Lnnex A _ Operations.

Part I _ Navigat ion Track Chart and Report.Part II _ llean Points of Impact Part II I - Banbing. Part IV _ Flight Engineering Cbart end ReportPart V - Radar. Purt VI - Gunnery Part VII _ Air-Sea Rescue Ch.art Part VIII _ VII Fighter cocmand Consolidated

Misaion Report .Annex B - \ ,eather Ptlrt 1 _ tieather SUJIml,ry.

Part II _ Chart _ Forecast 'o;,eother vs.Observed \ieathe r Part 11 I _ Prognost ic M3 pPart IV _ Synoptic M9.p. knnex C _ CommUnications Part 1 _ Radar Counter Measures

Part 11 Radiol ~ n n e x 0 - Intel l igence Part 1 Enemy Air Oppos i t i on Part 11 Enemy i ..nt i a i rc ra f t .

Part 111 _ Str ike b.ttack Report

......1!2..1761011121415161720

"222324252628

30 3131 33

knnex E _ Conaolidated Sta t i s t i c a l Summaryl..nnex F .. Twent ie th 1t.ir Force Field order l..nnex G Dis tr ibu ti on L i st . ..... . .

415155

Prepared By:i \-2 Section

Twentieth ~ i Force


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, , , , I , ,SECRET

,By Auth. of the CG20th Air Force...,-,..61U45 f).v -'Date InHiels: , , , : : , , :P . F A ~ UA1:lTERSTRENI'lETH AIR FORCE

APO 2)4SUBJECT, Report of Attack Against the Toyokswa Hsvel Ar"enal onHonshu on 7 AUBust, 1945.TO

1653)

Commanding General , U .S . A r Strategic Air Force, iFO 2)4.San Francis(Q Califcrnia

1 . IDEm'lF!CATION OF REPORT:a . Target Attacked, The Toy,,}an'8 Na'V81 k'seNil (Tl'lrget 90.21

near Toyohashi on the Island of Honshu.b. Force AttackinR: A noroal ef for t of 1 Group each. c ~ n s i s t

1ng of 3 squadrons. frCl!l the 56th, 7 Jrd . 3 l3 th and 3l4th BombardJ:::entWings were to at tack the target .

c . Direct j ' l" : Field Order t-'u!"'ber 15. Headquarters TwentiethAir Force, dat ed 6 August 1945. directed the at tack against th is ta rge t .2 . I'ISSION PLANN!lC:

a . Selection o f Target:(1) Targets Considered: The targets considered were those

that had heen singled out ferr dayligM precision at tacks when weatherwould permit such s t r ikes . The ta rget selected had to be l imited tc Ifor at tack hy a force equivalent to a single wing due to the fac t thatth is mission immediately followed a maximum effo r t night s t r ike .

(2) Target Selected and Reasons: The ToyokBwa l'aval l..r-seMI (Targe t 90.21-1653) was selected for at tack on the basis of afavorable weather p redi ct io n f or the Nagoya Area.

(3) Secondary Visual and Radar Target : The Yokcsuka Aircraf t Factory and Research Center a t Yokosuka (Target 90.17-1392) wasselected in the event that weather conditions would prevent visual boobi08.

b. Impor tance o f Target : The Toyokawa l>8val Arsenel . locatedin the Toyo River Valley about 37 miles southeast of Nagoya cas t le and4 .5 miles north of Toyohashi. is the Nuwber 1 p roduce r o f neval a m m u n ~i t ion and 1 of the 10 lllBjor neval arsen als in Japan. I t s products include lI'Schine guns, an t ia i rc ra f t weapons. r i f l e s , a i rc ra f t csnnon andammunition. It covers an Brea of 20,200,000 square fee t with 18 per centof that area consist ing of bui l t -up s t ruc tu res . The principal buildingse re of s toe l construct ion haVing ssw-tooth t"pe of roofs .

c . Time Factars:(1) Selec t ion of D.Day: D-Dey wes selected on the basis

of 8 ta",orable _es ther forecast presented for tbe area in .h icb the ta rge t... located.- 1 -

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(2 ) Selection of' Tsrset Time: Tar-Set time wes selected toenable th e 8-29's to assemble a t lwo Jima and rende2'vOU4 with friendlyt'1&ht ere. and s t i l l h i t th e tarset as early as possible in the morning.d . Munitions and Fue l Loading:

(1 ) Selection of Banbs and f\lze;s:(a ) f'unitiolftl:1. All Groupa Vlere t o carry th e 5 0 0 ~ p o u n d generalpurpose bomb, fuzed with 1/10 and 1/100 second delay nose aDd non_dolayt a i l . The 314th Wins was to be the only ning that would USe the 1/10second delay nOSe t'uze due t o the unavai labi l i ty of t he 1/100 seconddelay nose t o be used by th e o th er ';1i08s., l . The banbs selected 1'Iere based on the tect

t h e t the terget covers a l a r e e area and i s made up of both storage sndroanuracturing i n s t a l l a t i o n s . The buildings in the production sect iona r e s m l l in plan arees and are dispersed. Throughout the t a r g e t thesebuildings a r e pr incipal ly s a ~ - t o o t h roof and shor t span conatruction notsubject t o spreading col lapse. The SOO-pound bomb 'l':"as selected for thereason that the mult iple number of d i r e c t h i t s obtainable would have thebest chance of i n f l i c t i n g maximum damage t o these s tr uc tu r e s a s .. e l l ast o t h e i r contents . This s i z e bomb was expected t o prove most effect ivea ga in st th e storage a r e a , since individual buildings are protected byrevetments and could only be destroyed by a d i r e c t h i t n i t h i n tbe r e v e t -ment. This could best be 8ccanplished by exposing the area t o a largenumber of bomb h i t s .

.1. The 1/100 second delay nose fUZe ';'las selected asi t Would a l l ~ bomb burst 6 t o 10 f e e t beneath the r o o f , thereby causingdamage t o s t r u c t u r e s and building c o n t e n t s . The 1/10 second delay nOSefuze \')'as s e l e c t e d as the best a l t e r n a t e fuze t o be used by t h e 3l4tb~ i n g . The non-delay t a i l fuze ~ a selected t o give ground l e v e l burstt o n ea r m iss bombs.

(2) Bomb Loading:(8) B:!sed on s a f e t y f a c t o r s , banb l06d est imates f a r

t h i s mission Uere a p o t e n t i a l capaci ty of 12,000 pounds each f o r eachGroup o!' 4 hings and a n ex pec te d a ve ra ge of the same number of poundsper a i r c r a f t .

(b)by t h e t o t a l d i s t a n c e

The p o t e n t i a l c a p a c i t i e s were pr imar i ly governedt o be t r a v e l l e d .

(3) Ammunitlon 108din2: Ammunition loading nBs t o be according t o the T a c t i c a l Doctrine f o r dayl ight precis ion a t t a c k s .

(4) Gasoline Loadingl Fuel reserve data indicated t h a t the5 8 t h , 73rd, and 3 l3 th lHng a i r c r a f t uould r e q u i r e a t o t a l f u e l l06d of7100 g a l l o n s and the 3 l 4 t h ' :ang load per plane \70uld be 73CO gallons ..

e . F l i s h t Planning:(1) Route:

llmIb. Reason t o r ChoiceBlse to 1_0 J"it118uSSIlbly Area Number 1

T a c t i c a l Doctrine


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Iuo J'irna to &se Tactical Doctrine.(2) Navigationsl and Radar Factors:

This dead reckoning point ~ 8 selectedto miss the flak defenses 8 t HamaaAtau.

Tactical Doctrine

This ea si ly ident if ied point Of lendnear th e city of Morosaki wae selectedfor the in i t ia l point.

Thhl easily identified point of landin NBgoys Bay just east o f ... teuzeMwas selected fo r the departure point.

FleeeSellJbly off the ece st ofJ'eJ;l811to

to343530N - 1363830E

to344130N - IJ658JOE (IP)

Targetto3452N - 13750Eto

(b) In tha event that the secondary target bad to bebcmbed i t i s easi ly ident if ied by radar s ince i t i s located on the coastor the arroobead shaped peninsula a t 3503N _ 13916E. The secondary vis_ual and radar target is excel lent for direct synchronous radar bombiDds ince it is located on a coastal project ion on Tokyo Bay and resoh'es ase s ingle radar re turn . The coast and i t s dis t inct ive shape "ere expectedto aid in target ident i f ica t ion.

( ] ) Assembly Points: The only radar check points are 1'1""0Jima. Kita, and f'inami Iuo. These 3 is lands "'ere to be used as assemblyareas and. radar could be ut i l i zed to posi t ion the ai rcraf t in the eventtha t cloud cover existed over the a rea .

(a) The target is a l arge a rs enal complex uh ich canbe ident i f ied as a single radar return. The straight approach from thedeparture point to the target has 2 or 3 good radar check pointa thatcould be used to k il l d ri f t and for target ident i f icat ion A The targEtwas Selected prim:lrily for i t s visual references, although the radaroperator could be of assis tance to the bombardier throughout the run.

(4) Fleassemb1y Areas: 'I\1o areas "ere assigned fo r rEass ...embly, one a t 3325N - 13600 and another a t 340SN - 13620. The f ~ ~ rwas expected to be excel lent for radar assembly since i t Tlould ut i l izea di s t inc t ive southern t ip of lam and "ould also be an excel lent pointfor radar wind runs. The l a t t e r l7as chosen be-:ause tha coasta l featurescould be eas i ly ident if ied by radar operators .

(5) Departure Point: The departure point I 345330N 1363890E, was to be a good coastal check point on Ise Wano By makingth i s turn a i rc ra f t \1ould have a s t r a iah t course fran the departuro pointthrough the i n i t i a l point to the target

entif1ed(6 )

southern In i t i a l Point : The in i t i a l point . .a s to be easily id point of the Morosaki peninsula.f . Banbing Factors : (For de ta i l s or mean points of impect, see

ADn8Z A, Bart I I ) .(1) Each of the Groups of the 4 ~ l i n g s 178S called upon for

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3 Sq....drons "hich would make th is e ffo rt the cQ.ui"elent of a. norllSlSingle \:Oing attock. I t wos planned for 130 eiTcraft to borrb tho targeteach with an avcrage of 14.500 pounds (wsed on overall pcrtormance f igurca) far a gross tonnage of 930 tons. or the 930 tone. 88 per cent,or 818 tons, ware expccted to be released on the primary target . Per_Tioue experience indicated that 50 per cent. or 409 tons. would t a l lWithin 1000 feet o f the 2 assigned mean points of impDct, On the baahor this tonnage on the target area cOIllplete deatruction 'Il'culd be effected.

(2) Altitude and axis of attack aelected nere dopendEntupon t he rol le r- ing I; factora: (1 ) uind direction and veloeity, (2) pos_i t i o n of the SuIl a t time of at tack , (3) flak conditions a t the targEt,and (4) selection of easi ly iden t if ied i n i t i a l points , both by vieualend radar means. The foll(Xl'ing pert inent bgnbing infol'r:l8tion uall se lec t ed on basis or the heretofore .l!lentiom,d considcrstiona: banbing alt i tude.15.000 and 17.000 fee t ; axis of at tack . 68 degrees truel length of run.27 miles; time of run. 5 minutes and 15 to 1;0 seconds and. drif"t, 2 to21 degrees r i g h t .

(3) Vean Points of Impact: The 2 ~ e a n points or ~ p a c tselected , 1 in the e ~ s t area and the other in the nest aroe of the southsection o f the plent . included e l l of the 3 unit3 in the sou th section enda considereble portion of the northern starep:e area u i t h i n a probably c i r -cular error of 1500 f e e t .

(4) Secoooary Targets: Because of T o y o k a ~ Naval Arsenalr-as not considered a good radar t a r g e t , the secondary target a t Yokosukao:;oas designated as ~ i l l l 8 r y radar and secondary v i s u a l . This ta rget i3approxizr,ately 135 miles fran the primary and there 'l78S even the p o s s i b i l i t yt h a t in the event that clouds obscured the primary. the secondary,,::,ould beopen for visual b::lmbing. In the event , i s u e l banbing uas not possible a tthe Secondary ta rget it nas con sid ere d a good radar t a r g e t .

g. Defensive Tact ics :(1) Fighter Escort : 'fuo D-roups of 1>.'0 Jima based f ightersuere t o provide the follocring escort :

(a) One Group riSS t o rendezvous \ l i t h B-29's a t thedeparture point a t 070100Z a t 17,000 fee t to escort the bambers throught h e primary visual t a r g e t a r e a ~

(b) The second group ;'Ias t o a r r i v e a t 3.503N-13906E(uhich 'l7as t o be the i n i t i a l p ~ i n ~ for the s e c o ~ d e r y visual t a r g e t ) a t21,000 fee t a t 060130Z. f l y in th area u n t i l OSJIJIOZ t o escort the banaeI'S.I f no bombers appea re d. th ey " e r e then t o g.J i n t o the < > : e ' ~ o n ~ _ 3 r y e:.ea ands t r a f e .

(2) Flak: T h e ~ e are 22 heavy Slln3 in the Toyohashi a r e s ,and a i r c r a f t 'l7ere exper.ted t ? be ' t i i thin I'a'lge of 12 of thesa on ~ h planned approach t o t h e t a r g e t ~ TillS r a s cO;}:lidered a \/eok ':'P.f('),'.8 and cnlymeager f r e k nBs a n t i c i p a t e d . The d0':7n-\7ind a x i s of a t t a c k roas p ~ e . , . n e d f rant h e n e s t . The route t o the i n i t i a l point ;'las expected t o bring a i r c r 3 f tb a r e l y with in range of the 18 heavy guns a t Ujiyamada. F o l l ~ i n g bombsn a y , a i r c r a f t r-ere t o b re ak auay t o t h e northenst and around the M.l:l8rl'8tsudefenses t o l a n d ' s end. The base a l t i t u d e s s p e c i f i e d , 1.5,000 and 17.000t e e t , were expec ted t o be beY0nd the optimum range of the f l a k e f f e c t i v e -DeliS. In the eveot t h a t the secondary t a r g e t was at tacked, tbe B 29'swould be \ 'Iithin range at 10 guns a t Hiratsuka and approxi.m!!ltelY 106 gun! a tYokoeuka. Fat' t h i a reason, a i r e r a f t were i n s t r u c t e d t o increase thEiralt . i t .ude by 4000 t e e t i f t h e secondary were a t t a c k e d .

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(3) All squadrons .. ere to be equipped to barregll jam;nemy gun- lay ing radars in the 72 to 84 and 1'30 to 210 lIlegscyclc region:l.~ o jamming W81S to be employed against gun_laying 51goola epp18ril18 outIUde the barrage. S earch for enemy radars f r an 20 to 3000 megscyclf.1S ~ O I Sto be cont inued.

(4 ) Fnemy Air Oppos it ion: (0 ) It 1'18S ant icipated the t 20 to 30 enemy f i6htcrs

might offer op pos itio n in th e T o y a k a ~ e erea . A poslSible 5 to 10 eddt iona l interceptors ":'Iere expected to pick up the 8-29 stream and paceit in the bay area lSouth o f Nagoya. In the Tokyo area a poe lS ib le 40 to50 f igh ters nere expected to in tercept the 8-29's if there ~ e r e UJl8bleto bc:rr.b T o y o k a ~ a and p roceeded to Yokosukn.

(b) On th e b as is of the above considera t ions , 2 groupaot t igh te r escor ts were to be used as c u t l l ~ e d above.

h. Air-Sca Rescue: The Navy was given detai1e of th i s missionand provided th e a i r - see rescue f ac i l i t i e s sha;.n on the char t in Annex A,Par t VH. noich a lso s h th e f a c i l i t i e s provided by the ' I ' rent ietb li.irForce .

3 . FXEC1J!'ION OF T.'1E ),m;S!ON:o . Take-off :

(1) Aircraft of the main bOmbing force took off as follCGa:E.i!:Jg Aircratt Firs t Take-of f Last Take-offAirborne58th 32 061750Z 061819Z73rd 31 061810Z 061625Z313th 35 061754Z 061828Z314th ...li. 061740Z 061899Z

Totel 131'" 061740Z 06182&"'This to ta l doesOne a i rcraf t o fassembly point .

not inc lude 4 Super Dumbo arrlthe 313th 'f.ing nas to serve asIt carried a fu l l bomb load.

1 :Jind Run Aircraft .a "l7eather ship a t the

(2 ) A to ta l of 104 f ighters of the VII Fighter Comr.'mdwere a irbo rne f ran It'lo Jima a t 062212Z.

b. Route Out: Long range navigation roes accomplished by in1ividua1 a i rc ra f t to the formation assembly point. No navigation dif f icu l t i es were reported and no ei rcraf t failed to bomb the pri.m3ry targetbecause of navigational error .

c . Assemblies: The f ighter Group reached the d A p ' ) r ~ n r p . PO\ ; l t afew minutes before th e 8 -29'f '. The 3 f ighter squadrons flC\ e ~ c o r t a ...16 f ooo. 11,000 and 19,000 feet and the lead bombers roere e s c ~ t e d to thet a rge t eDd 10 miles beyond. This escort continued unt i l the las t bombS%'bad gone over the ta rget .

d . Targe t s :(1) Primary: Redar was used 8S an aid for navigation andtor ..1m determination in the target area . C,ood vis ib i l i ty permitted.s.aua1 bcDbing. WiDd in the target area was trora 100 d(grees at 15 knots

.&11 124 aircran ballbins bit th e pr imary t a r g e t , dropPUl8 a tote1 of..,-3 t_ at bcabe trc:. 070113Z to 010139Z a


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(2) Tarset or OoTlortunlty; One a i r e r a f t . "'hich also bcmbedth o p rinBr y ta r se t . dropped 3.5 tons of banbs on Futamota a t 0701)2Z1'rCID 15.500 reat .

(3) Fishters ; Of the 104 f ig ht er s th at were echeduled toeecor t . 97 reached the torset toreo.e . Remainder 0 ( Fprce: Seven a i r c r a f t ~ E r a n o n ~ o f r e e t i v c .1'. Route &8ck: The re turns to basea were t l ~ l n as briEfed.with the 8:J:ception or 7 8-29's that landed a t lwo Ji lm.g . LanHOS: Aircraf t of the main farcll landed in llhOlJere e tbeses os tol lows:

'iring Firg t Lending ln l ' l t Ln " "ns58th 0707352 0708352073rd 070707Z 070B22Z313tb 0707l2Z 07082J.iZ314th O]0729Z 0708092

Tota l 070707Z 070835"h. Loss and D a ~ ~ g e to Aircraft :

(1) One B.29 of the 313th ':ling '\'fas h i t by flak over th etarget and the 11 cre'li members ll'ere forced to bai l ou t over luo Jir.l8because the damage prevented control of the ai rcraf t . ~ l 11 men uererescued.(2) Tl


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A

OP1RATIOJ6

Par t I Nl.vigstion Track Chart end ReportPar t II _ ~ Points of ImpactPart I I I _ BombingPar t IV _ n i g h t Engineering Chart end ReportPart V _ RadarPart VI _ GunneryPar t VII _ Air-Sea Rescue ChartPar t VIII _ VII Fighter Camt:lcd Cc;nsolidate:i Kissior:!

Report

Mission No. 3117 August 1945


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PART I _ ~ E G A T I O Nt 1 . Lone ranse I18Vigstioll was accomplished by individua l a i r c r a f tl' 0 th e f'Ollm!Ition asaembly po in t s . The tBrget at tacked 'IllS Toyokewa~ v a ] , A r s e n o l . ~ i t h 3 yquad rons each trom the 58th. 731'd, 313th. and

4th. l ings pa r t i c i p a t i ng . No nsvigatiol l d i f f h \ l l t i e s


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M I S S ' O V N ~ N ~ O t 3 ~ 1 ~ 7 ~ : lOATE_ A

\- _. - : " ' E ~ N O -3!1

________ . , \ ~ ~ ~ W l ~ 6______ 313'" --J


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."'MEAN POINTS OF IMPACT

ISSION NO.317

MPI WINGS58"'. a 313lh.73rd. a 314th.


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4. The ba:::Jbing eccuracy ~ a good., ";lith 39.7 per cent at a l lbambs being released ~ i t h i n 1000 f ee t ot the mean points of impect.The c lear t ' :eether ~ e the g re at es t f ec to r oontr ibut ing to the succeSsof th i s miss ion.

2 . 11Ie weather in the ta rge t area was CAVU and a l l forlll8tioml made"bUIll runs . The Ired bO!llbar4iers of' the f'ormatioml tha t banbed l e tehed to use ref'erenDe point bombiOB proc.edure to s ight on the t e rge t aethe aimi08 point wee obscured by dense ::moke.

by 3 squadrons each

exDeIIently planned. The averegeCanprees ibi l i ty for- the f'oree ~ a

PART I I I _ BOMBTh'C1 . The ToyoJl;Bns Neval Arsenel "as attackedth a 5 8th , 73rd. 313th, and 314th lI i088.

3 . The miesion nes ~ o n s i d e r e ddrif ' t reported ~ 3 2 degreee l e f t .26 minutes.

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1 . N!l.rrative of tho Mission as Fl(l\l'1Q:e . Cruise to the '{ainlend: Individusl c li lnbs were IWde 1mDIlIH-Qtely a f te r take-ot t to eltitude:J between 5.000 to 9 .000 fe lt , T:hcre

the i o i t i e l eruise was flOO'Il. AsseJllblies were IIlBdc o tf the coost ofJ"epan.

nn b. Bomb Run:average a l t i tude o BaDbing was17.000 t e e t .conducted by squadron formations e t

c . Return to Be.se: Fleturns to the beacs r.cre conducted by in_div idua l c i r c r a f t t: ' lthout di f f i cu l ty . MinimUlD fuel nes used by e1r-planes cruis ing a t 14,000 to 16,000 fee t end descending 200 fee t perminute in to the t r a f f i c pat tErn. Maximum range speeds ee speei f ied byth ie headqU3rtera g3ve the best fue l conauroption.

2 . Car.lllnts: Of the a i r c r a f t ai rborne, 5 per cent landed a t Ir.oJ'iz:tt. Only a i r c r a f t of the 3l4 th ~ i 1 l B loaded a banb bey tenk. I I thet a rge t a t Toyokal't"s had been closed in and the t o rm t iOIlS proceeded onto th e secondary ta rge t in the Yokosulal orES, a l a rge percentage ofth e 5 8th , 1)r4 and 313th ':ling. planes 'l'!ould have had to land a t 1';10lima to r fue l ,

). IXhibi ts ;a . For hia to r i ca l reeard . see e ha rt tha t prece:!ea t h i s p3g&.b.

S t a t i s t i c a lFor fu r ther

Summary,informat ion, see Annex E. Consolidated

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PART V _ RAOA....R1 . Egu1unent Pcrf'ormarce of' AN/AN-I ' ,

Numbe. of' sets operative on take_of'f: '29b. ''urn_ o f sete operative over target: '23 (98.8l()o. __ of sets operative on landingl '22d . l'.'u:nber of planes using a'ZOimuth stobll 1'ZOot10n I 67 (57.7%)e . _b.. of set fe 11ures in leod ei rcrsf t , 1f. Average ltI8J[:imUlll rane;e of ta rg ets in naut1cal m1lesl 70 e t

5000-10.000 f ' t . ; 71 at 10,000_15,000 f ' t .g. Average m3ximwD range or beacons in nautiool miles: 115 at

5000.10,000 f ' t . ; 133 10,000-15.000 f ' t .h. No interference ~ a encountercd.1 . Average range of rapense Coast : 61 D3utical milES.j. No recurring malf'unctions ~ e r e rEported.

2 . Redar Bombing AN!AFg-13'a . BriE;fing rreteriel ..a s re po rte d as excellEnt, ni th the exception of the 58th 'Uing o;;.hich reported pictures on Toyohashi "ere a t

the urong a l t i tude .b. All meen points nf impact ..ere reported CIS excel lent forradar with the exception of the 58th ~ i n g which reported di f f icu l ty in

locat ing the primary visual t a rge t .c . Ident if icat ion of landfal l \ iSS reported as excel lent .d . Methods of re lease : Visual.e . The 38th l i ing r epor ted r ede r photo rep:noduction on Yokosub

was superior to the normal l i tho furnished.3 . IFF SCR-695:

a . Locetion turned on and ef f ; SOPb. Avarage number of times checked: 38c . Number of se ts 'l'iith malfunctions: 2

11.. Absolute Alt imeter SCR_718:a . Number of se ts operative. 70b. Number of melfunctionst None

S. QapnenU; The 58th S ing r epor ted superiO!" beacon range on tbismia_ion.

- 14 -


17/59

. .&;QEEI.PAR7 " .. "CUN!7;ilr

1 . No. o f Ale 1'1rlng: No. .2 . Average tu r re t l"d

.!!l .!1J!, 2: lL2000 1000 1000 1000 1000

3. ATerage No. o f rounds fir.. in oombat p u t.urret;.!!l 2: ld!. J.Z 0 0 0 0

4, No . f J rounds 1'irEd '0 canb!lt: None5. No . of rounds used fo r teat f i r ing ; 12 .2606. Guns Looded: 58th i ang 7}rd ,",ing 313th .ins 314tb . i ng

Hot Cold Hot Cold7. V81functicns: CAL. .50 M.G.

Timing o f fLink Jams - (2)Bo?ster ! o ~ o t o r

8 . Total preentage of' equipnent operetive:c.r.c.100%

CAL 50 M.G.

9. Remarks: There r.S13 no gunnu-y ac t iv i ty on th i s mission.


18/59

JIMA

e r. . . . 11. . ." on ~ \ . a u O l l u e tll.1 t:ro t ! ' M a U . t t l u.r ,.wee I IU ". . . . 11lC c.aD-CIt1' laAdlttcI

II\II- - -+ - - , .

JIMA I\\II0706101..

MISSION NO 311DATE 1 AUG '4 5

....I'f SEA RESCUE

---

ow

. ....

J

SUBMARINESURFACE VESSELNAVY CUMBOSUPER OUMBO

K Y

IIII----+-III

Af>q'l 1945,w

PART ::lZlI13S-II {}II

.0 01'"..

TO BE..-

> O " - - - - j . . . . : : . - - - - - - + - - - - - ~ \ r - 4

'0--1--1

I . ; ; ; " ; ; ; E ~ ~ ~ ~ E ~ E R ESTATION DURING E N T l R l MISSION.2. AL L D U W O S AND SU R DUMBOS WERE TO BES.F'ROItI TIME INOlCATtO TO RETURN PASSAGE

IK E AlRCRF T. III1",=::-"-,,, ,..-

OI


19/59

. Q E ~ . T .PART vn I COISOUp,;.TID MISSIOll REPCRT.

JID\DQ.tJ: .,FrTEi\S VII FICHl rn C O ~ ' J J h m I.J.:FOft"ic(l ot" the Ccmoonding Gencra1Iwo Jima 10 liuguat 1945

1 . a . Unita and Targets: 15th Fighter Group - Iaec;rt B-298 tr(DDP tl.Ji!1goya krE.lll sndth,oee to landae"".S06th Fighh r Group- Chotu (p) , S o g = l(5) , and Ji.tillu.gi(Ut) air t iE.1da.

2 . 8 . Type of l..:is5ionl Escort of B-295 over regays or Toky(" ..Ii. FightEr Str ike by one group in event the baDbers e.rE. not a t their IP .

b . De.te o f Mis si ac : 7 August 1945c . Field Ord.er 1\0. 161.d . VII Fighter Ccrnmarui Mission No. 257. VIR Mission roo 48.

3. e . Croup 15th Ftr Op 506th r t r Gp Totelsb. A/c schedulEd 52 52 104e . A/C returned early 2 0 2d. A/C over target area 45" 52 97e . Ale lost 1 0 1f . Ale oanpleting mission 45 52 97o Tlo lost alc off 0740 0812h. Time RV ;./nav bombers 0800 oe35i. Time over DP 1055 1125j . Time of landfall 1055 1125k. Time over target area 1100-1145 1140-1225---1. Time a t RP 1150 1240ro Time landed las t u/e 1515 1549

Dispatched 48 planea, one of which went demn en route to the targEt .4. a . Friendly ai rcraf t l o s s e s Total: 1; Pilots: NOn).1 P-51 "as los t en route to the target due to a coolantleek. Filot paracbuted safely and r:as picked up in good condition by en

J..SR surface vessel.b. Friendly ai rcraf t damaged - Total: NonE.

5. a . Enemy aircraf t s igh t ed . Air: None.Ground: 10.b. Enemy ai rcraf t losses: None.e . Erlemy Ground Instal1etioa end Shipping L_SIlea:

15th Fighter alouD None.

- 17 -


20/59

bu' 506th Fighter Groyp _ One 200' freighter explOlh:d end le f trnlng, 1 Suser D08 set af i re , 3 Sugsr Dogs nera damaged. 11 f iehingboote. 350 ' t ranlers and 1 30' launcb were damBged. Three steam locomotives. 22 1'reight cs.rs, RR s ta tio n a t uagarimatsu, snd the RR yardsand sheds at Matsuda were stra1'ed and damaged. TPo 1 'i re s ner e startedin stOTogo tanks or Tats a t an industrial plant 5 01' SekiInoto, ani 1bUilding roas dmnaged a t Salro;;e. '1';:0 rndio stations 'r,()l'e damagc.-d end 20Pct':er l ine t oo er s sho rt circui ted and s t ructural ly 4emagad io the Sagedval ley . ~ o il storage tenks l e f t burning, 2 radar etationa damagEd ond1 l ighthouse destroyed a t Noj:'=. Edd .6 . HOrrative: ~ 1 ' i ~ l e r gr'oups nera sshedulc4 for th is mission.One group nas to UICort a f o r e ~ of 1\-29s to Toyoka'::8. but i f th1l!l tergE'tr.ere closed in , the bombers nere to prceeed to Y O k ~ u k a ~ h c r e the 8EcOnd

r ighter group , ,8S to taka up the eacor t . If the bachera did not epp03rover the secondary ta rg et, th is second f ighter group ~ a to s t r ike a i r -1'ields in the S;; Tokyo area .The escort phase of the mission nas ~ o u t i n e , with the bombersb i t t i ng the i r primary t a rget . One P-51 of the 15th FightCT Group ' t : ~ elos t operat ionel ly on the ~ a to the r e n d e ' l . V O U S ~ but the pi lo t nas ru-cued. The group reached the DP a 1'e;, minutes b efo re th e 8-29s. The Jsquadrons 1 ' l e ~ escort 16.000. 17.000 ~ n 19,000 fee t , ~ i t h the b o m h ~ sa t a l t i tudes t 'r0ll l 17.000 to 19.000 1'eet. The lead banh6rll 'r.'ere escortedto the PT and 10 miles beyond. Then the f ighters returned to the DP a r escorted the second ~ a V e 01' 8-29s. After th e i n i t i a l run, some o f theB-29s returned to E on a second run. Escort 'r.'as given un t i l the l es tbomber had gone over the t a rge t . No enemy .:l i r e ra f t "ere seen or encountered. Heavy f lak 'r.'as meager inaccura \e . Return to base ....a3" 1I'ithO"J.tinc ident . The 506th Figbter Group err ived a t the point for rendezvouswith the banber s t r ike 1'orce a t 1125 aoo orbi t ted t.,1 of 0 Shine fe r 15minutes. The hacbers did not appear end the P-S1s continued on the i ra l t e rna te mission. One squadron maintained h igh cover and sighted noenemy ei rcra1 ' t . The other tuo squadrons invest igated Sagami and tslo1.Sia i r f i e ld s but found no worth,hi le ta rge ts there ; end so they conti:u"'usouth and southr."eat at raf ing a var ie ty of t a rgets ofr opportunity i u , : u d ~ing po;-;er l ines , t ransformers , ra i l road f ac i l i t i e s and ro l l ing s t o ~ kSmall s hipp ing was s t rafed a t lands end and one squadron sp l i t up ; < ; i ' ~ hone sect ion s t r a f ing th e rad io s tat ion and l ighthouse a t C h i h a - ~ a i c : . 0.1OShima, and the other aect ion s t raf ing Nojima-saki and nearby .. o . t ~ ; ,damaging a l ight .house. radar s ta t ions and o i l storage tanks and fir1:1a la rge f r e igh ter , All planes of th i s group re turned to base aafeiyc

15th Fighter Group: 11eager inaccurete heavy f lak , s s (0coootered het'l7cen Mika'IV8 Bay and ToyokaVla.S06th Fighter Gr ....up; Nleager inaccurate heavy f lak "!I:J


21/59

lSth Fishter Croup Target Area _ 3/10 cloud covel ', bel l l l l l5.oeo' tOPIl 6000'. Visibility unlimited.S06th fighter Group Target Area _ 3/10 cumulUIl boiled at3.000' with tops at 6,000' along cOllst, beeoroing 6/10 to 8/10 covorage~ this leval about 50 miles inland. Visibil i ty 10 to 12 miles 10 hezeelO\l? 10.000 and unrestricted above.

10. G. A ~ u n i t i o n Expended:

oJLo

BOO27,1)0

ROUN!E CJ..LlBrn .50mars15th Fighter Group506th Fighter Group

'Tara!,b. Gasoline remaining in planes complet ing mission (gallcns)lUNITS AVERAGE P@ Me .lie 'filTH r:;,x 4/e .. ITH ~ FlE3

15th Fighter Group45th Ftr Sq 100 150 6547th Ftr Sq 9B 134 5378th N r Sq 90 119 49506th Fighter Group457th Ftr Sq 86 III 39

458th HI' Sq 71 90 50462d f i r Sq 84 119 5911. Observations:

a . Airf ie lds :Atsusi _ Appraximetely 50 durnny and inoperational a i r -craf t including 2 4/E planes were sighted on the f ie ld from 6000 1Sagami _ 'Two to 3 dUlIllllY a i rcraf t ';Iere sighted. Ten p l e I ! . ~ s'l':'ere dispersed S of the f ie ld tOl"lsrd the coas t .

b. Ground Insta l la t ions:-:'ihat appearEd to be an ove r- siz e 'l':'eather balloon with aradar re f lec to r device suspended on a long cable beloo, was sighted a t15,000' Nij of 0 Shims. The balloon wes white or s i lver l1ith a red rr.eetbal l paint ed thEreon .

c . Shipping:Ten large vessels uere sighted in Yokosuka Harbor and 20luggers were in 1l.tam1 Barbor.

12. Remarks;This 'l7as the 10th V L escort mission canpleted by t . l ~ ~Camnsnd and one of the most uneventful to da te . Banbers ~ e r e c1 ).!>d:rescorted over the ta rge t area from the beginning to the end of t ; ; ~ .

a t t acks . Not a aingle enemy plene was sighted despi te the fac t tha tweether condi t ions were favorable to in te rcept ion, with vis ib i l i tyunlimited. No f r iendly f ighters ":"lerE los t or damo.ged to enemy act ionon the mission.

/e/ E. ~ ItJ E. """"EPr1gadier GEneral, tBJ,..CCIIIIIl nd i D&

- 1? -


22/59

B

Par t I _ l leather SurmtJIlryFBrt II _ Chart - Forecast va

Observed ;;eatherPar t I I I _ Prognostic llBpPar t IV _ Synoptic M:!.p

Ml()sion No. 3177 August 1945


23/59

PART ! _ ' JEATHE' l sur.


24/59

I

I1

.\I'I. I

l\ .

;:; ,, \IIIIIII

$!I

..II ) . ....


25/59

,,' I

,- -

-

, CHICHI JIMA

~ r ' /,,," ._ 1

.... -"' .. \'-,

,

f?-

>'.

1 - - - - t - - - - - f : ~ : : : ~ ~ ~ l , ~ - - - l : : ~ s A ~ I ~ ~ A ~ H ~ - J L - - . -

,-


26/59

,

.,

-"GUAM


27/59

I

ANNE: 080745 10lf2 21 121 S CL 07JPJ00091 0472 40 J04cW 13810": 060745 OW.1 21 121 "'- ';':100092 OOco 12 3027;- 1 3 8 1 ~ 060745 09;;8 21 121 ,00082 370 35 3300:.1 13800-:.: 0';0745 1:01 21 121 001010,0200097 0445 40 305


30/59

pART l ! . . . = ~mis s ' 1 . t r i k e Repor t s : fi lelve St r i k e Repor ts ~ e t ' e received dl,lf'ins th e101'1. T hree eaeh !'rOlll the 5 8th , 7 Jrd , 313th and 314th '; '1na5 OPera 2 . 1m Transmissions: Eighty-siJ< per cent of all a i r c ra f t rad ioR t a ra received _I>uz!cyo OF" type messagEs ! ' ran the g round 1 l' to t1ona .teasons tor not receiving these massages included being off Voateh dueo o the r dut ie s , fau l ty equi Ent ane! '\"larking with navigator . Theret 'ere 0 1 ......I! n y 3 Operators wi thout log ica l rE.8sons fo r not receiv ing tho.casagsa t 3 . Frequencies: ktmospherie interference usa alight throughoutRhe entire mission on oIL of th e s tr ike f requencies during this mission.e la t ive ly reo instances of i n t en t iona l j=ing or intcr!'l;t 'nee t;ere

;epor ted . Folloaine 1s a percentage breekdo;m or t re ff ic per frellucncy'.75 pE;r cent on 3 megacycles; 39.'75 per cent on 6 me/pcyc1clI end 56.50per cent on 11 megacycles.

4. 1'evigstional kids: The 58th 'hng reported using Air-To ...... i rhoming successfully during this mdssion r.ith 22 a i rc ra f t . r HF/,rbearings or VHF/DF bearings l'7ere requested duriTlB this missfon. Radioranges. broadcast stat ions snd homers ~ e r c used e ~ f e c t i v e l y .5. Net Discipl ine and Security: Very satisfactory net discipl inenas reported. No violat ions of securi ty r .e re recorded 0 0 the str ike

f 'requeocies.6. Enemy Transmissions: The fo11o;;i08 incidents of janming, cner.y

in ter fereree and transmissi ons 'l"iere recorded during th is mission:a . 3020 kes: Voice a t 1928Z uss very t : ffect ive.b . 6615 kce: Unidentified C;l a t 1900Z I':'SS part ia l ly effect ive.c . 10305 kes: Unidentified o;i at different in tervals nae

inef fect ive.d . 3160 kcs: Negligible.e . 6055 kcs: ~ n ss" tone a t 0030Z U3e effect ive.f . 10880 kes: Voice bet\"1een 0300Z and 0447Z uas very effect ive.g. 3410 kee snd 7310 kes: Negligible .h . 10125 k e ~ : Steady hum and Series of V's a t 2000Z and 2145Z

were very effect ive .i. 3990 kcs: Negligible .j. ThlS kes: V's , steady tone and keyed c.; s t 2330Z, 0030Z .. ere

. ,ery ef fec t ive .k . 10820 kes:

(1) CY" hash a t OOJOZ, 1904Z md '021ez WIlD . ,ery cttect iTh(2) OJ bash a t 0250Z and OJ13Z 'rillS very ef fec t ive .

7. Di , t re88 , '!'here 'I7a9 no dis t ress t r a f f i e carried on by theWi.D8 Gr'0Wl4 Stat ions during thia mission.

_ 28


31/59

..-a. aU ._-,...


32/59

D

INI'ELLIGEN:::E

Part I - EneJllY Air Oppoait ion l 'br t II _ .b t ia i re r . ! l f tPart I I I _ Str ike Attack Report



33/59

P.\RT I _ F.J:EMY i . IR OPPCSITIOIIT o y ~ .. ir OPPOSition 1'las n il on th is dsylight ef for t againstS ~ t e : a N3val Arsenal on 7 AUBuat. Only 2 enemy e i rc ra t t were(i alld no at tacks ~ E r e su.stsined. The 2 enOl'lY s1rcraf t seen0;; d ~ n t 1 f i e d , but beHeved to be t::?in_engine) ere going in the

OtI:a.te direct ion I7hen enCCl.lntered nC"'r 18n1'e cod.tb 2 . SQtIe of tbe B-29s roare esca:-ted by 1 Group of P-5 l ' s , f'rCl:lc ~ to 10 oi lcs post borIlbs sl7sy.. One \"ling reported P-51a pat rol l ingr e! ' ran IP to ta rg et . The P-51's r.hicb straff;d ground targetsa ~ no enemy a i rc ra f t on the ground ~ Ilssigned s i r f i d d s so they2 cked ground ins to l la t ions . On i . taugi a i r f i e ld . the P-5 l ' s Slrn'l ~ - e n g i n e and 48 s ingle_engine and tr . in-engine dummies. Over thelII. dIe of Tokyo B:1y, they a lso san a t ree balloon 20 fe{jt in d1lIrnoter'a t l5 .goo f ee t , gra y r:ith red bal ls and 1!I bco: 6 to 10 fec t SQuerasUSpended b e l ~ .

1. Summary of ' Attack:The prinery target t:'IlS banbed by a i rc ra f t of the 4. r " i ~ a sfolla;vs:

lJ il'-B. .5 :z:J .:lli illNumber of' ; ' i rcraf ' t 30 2') 32 33Time Over 'Ihrget 0123Z-0132Z 0126Z-0131Z 0126Z-0139Z 011JZ-01242Alt i tude &-aeket 16,000 16.1JO-2J.600 17,700-19,700 17.900-19.400lIxis of at tack 680 _800 66 0 _710 650 -740 670_780Unde.rcast Cl.o.W-2/10 2/10 ChW-4110 c.VU

2 . Flak En Route to Target:En route to the ta rget f lak r;as encountered as tabulatedbelow:Location

UJi YamadaAkenogaharaKushimotoTsu!latsuzaka

Coordinates Remarks

34 51 N - 137 26 E Meager and inaccurate,heavy and medium34 30 N _ 13645 E MeClgE.I' and inaccurate,hcovy aOO medium34 32 N _ 136 40 E M c ~ g e r and i ~ c c u r 9 t e ,hcevy and medium33 30 N 135 50 E Meager and in3ccurete,he.avy 000 oedium34 43 N _ 136 30 E Meager aDd in:lccurnte.hc.::1vy end I:Idium34 35 N _ 136 31 E l ~ c 3 g c . r am imccurate ,heavy end medium34 20

N _136 35 E V8ser and inaccurate,heavy

- 31 -


34/59

' ! : ~ E ! : . T3. Elak 0 .= th o TllrBet:

Titne of' NumbCT of' Aircraf't I. ircr:! r t_Re lease in F.ormotion D:1mogd RcJf\flr k80113 12 5 !.llgcr andIICotlrate.0120 hellVY12 3 L'oeozer and

0123_0124 accura te . hc.evy910 0 Meager and '0_0126_0127 accurate:. heavy10-9-12 5-1-0 M e a g c r _ - 3 c c u r ~ t eto imccura tc .0128-0130 hE.1evy.119-11-11 6-0-0-0 Very accura tefa r 1s t Sq,dn.

I no ccur at e o rn il tor oU::ers.01 34 9 0 ~ Q g c r endaccura tea . J..n analysis of the above figures clearly indic3ted thatthe ta rge t def'enses could adequately handle only 1 banbing f ~ t i o n

a t a tilne; i . c one Squ.:ldron m1S suf f ic ient to saturate thlll to theextent thot t ra i l ing Squadrons uitbin a 2-minute interval found f lakei ther ni lOr ' inaccurate .b. In a l l eases f lak r,as described as meager. and controlnas ei ther continuously po inted o r predicted concent rs t ions . Mostof the damage was inf l ic ted by 2 predicted concentrations of 10-12

bursts each hi t t ing t"o l l -a i rc ra f t for/W.tions.c . This relo.tively meager defense apparently accomplishedsane of the most effect ive firif'.g the Japs have demonstrated to date .

4. Flak on Withdra"al: On ~ i t h d r 8 \ ' t a l mcnger and inaccurate,heavy f lak nas observed at Hanamatsu and Shimada.

5. SUITIIlOry of Loss ond D3nage: One airoraft 'l'7as los t to f lak onth is mis si on ( seve re ly damaged over the ta rge t and crashed a t I\1o Jima).Of 124 a i ro rof t bombing, 21, or 17.0%. sustained f lak damage,

J2 -


35/59

Borebing .l..ccuracy: Fair

Q Q 1 ! . L I I ! . E 1 ! ! l A bPi.RT I I I _ STRIKE M'T.l..CK R l ; : p m ~

4027816

Percent ott a t o l dropped

7.3rd. 31)th end 314th

Bombs Dropped On Targat; a80

E:anb load: 960:x 500 l b . GPFUsing: .01 nose. non.delc.y t a i l

325651022741290902282527

90.21-165)TOY01Q;:'..I.. ~ . V J . L loRSE:Nl.L20 .l.ir Forca Miss ion ]17. 7 .il.ugust 1945 _ 58th.

Banb Wings.J(OtBlNID STl.TISTICS ON EOl'IBIN'G ;.CCURl.CY

Banbs droppedVisi ble b.lrstsCalcUlated nnd probablc bursts.In:lpacts 0-1000' of I.P

.. 1-2000' of AP.. 2-3000' of 1..P.. beyond 3000' of AP

ClaSSlf'ic;J;tion of bombing accuracy: GoedSmlKE i.TTI.eX REPORT 58th BOlI::B ""nnTime or Attnek: 0701232. t o 070132ZHeading Over Target: 6-,0 TrueNo. A/C Over Target: 30

F i r s t 1 'annat ion over ta rget dropped bombs in pattern around MPI. Theseburs ts nere observed in S. , q uarter o f area fOb' and NE quarter of area .. B'"(Ref. - c m Indus tr ia l Report 48). Ir.:rnediately af ter t h i s formation

s t r u c k , the e n t i r e t a r g e t area nas obscured by smoke. mDking necessarythe p l o t t i n g of second and third forrot ions by calcula t ion.The IWjori ty of bomb bursts of second formation of 11 ::/e t7ere calcUla ted t o be t l i thin 1,000 ' of I


36/59

FollOl7ing formatiOns were plot ted;

Table of bombing s ta t i s t ics :

bomb bursts of r o l 1 ~ l n g

Bomb Laid: 574 x lil4 )305 x 1 ~ (Ca:JP BFusing: Uh4 - .01 nose. nondelcy t a i l .No. or flits on Target: UnknORn

A1rtorne hem"," Jlot p lo t t ed :hIe je t t i sQnOd 78 bombsbombs no t accounted fa r

Photos re 1ee ved: Joll pr in t s .from bGllbs away tose r ie s : 301 - 318.

.'I'RlKE AttACK RErOOT 7]rd B01'B '"INCTlme of ht tack: 070126z _ 070131ZHead ing Over Target: 660 to 710 TrueNo . 1./C over Target: 29

Bombs dropped on primary target: 544 x w.b4257 x w.b4 (Canp. B)Visible bursts plotted: 73Celculated probable bursts plot te1: 480Hits within 1000' of 1.P: 150 18.8%Hit s within 2000' of lU?: 233 - 29.25%Hits 'Kith in 3000' of IJl: 167 - 20.8%Hits - exact location unkncmn: 278 - 30.9%

1st Squadron 10 Ale 287 x N:642nd Squadron 9 Ale 249 x N.643rd Squadron 10 hlc 265 x tf.64Bombs Jettisoned: 30 x yb448 x M64 (Cemp. B)

Ba::Jbine iu:curacy: Unkncr.nN,'LRRf..- TlVE REPOBT:

. Strike photos fram 7 ale indicate good to excellent resul ts 7.itblllBJority of banbs hi t t ing ,>:,ithin target area . Numerous hi t s observe1.on C1'tices, machine shops em storage buildings in SE sect ion of t a rgs t .Some addi t iona l hi t s vis ib le in oorracks and housing eree e t SEo edge oftarget . Bomb pattErns could be p l o t t e ~ for only 2 squadrons since th esecond Squadron Over the t a rget did not obtain an)' photos shroing btt"bse"'ey or bomb impacts. I t is believed he:t'l'ever the majtlrity of benbs frarJ.this squadron fe l l within the ta rg et a re a. Huge columns of s ~ o k e obscuring a l l except eastern most portion of target prevented a more completeassessment of damage.

J

Bomb Load &: Fusing: '03 x 500 1b.GP. Fused lns t nose. NO t a i l .No. of t./e Over Terget: 33eediD8 Ovcr Target: 67;0 - 750 True

Photos received: 5M31? IV2, 3. 4 . 5 ; 2Vl. 2; 3V4-9; 5\12-11; 6V2-7; 7V1-15S'IRIKE J,'I"I'b.CK REPORT 313th BOMB "IIwe:Time of at tack: 070126Z - 070139Z

110. Burste on the Target: 815 Bombing : 'ccurecy: ExcellentTotel _ b o r banbs dropped ove r ta rget : 843Tote1 number of visible bursts plotted: 28- (Corded 8S jett isoned-belar),._, .IOS_ of cs1culoted probable bursts plotted: 843-34


37/59

11 JVC droppcl. 276 x 500 l b .11 './e dropped 273 x 500 l b .11 ,.;S drop;>cd 292 x 500 l b .

ForIrI3tlon,Forll l.:)tlonlFOl"zn:ltlonl

RePort 135. Cont'd.i ; : o . l No. burota w i t h i n 1000' or I.PI _ 612 - 75%T t a l No . b u r s t s n-lth1n 1--2000' of MPI _ 203 - 2 5 oolNob' r o t c l No' \Ireta w i t h i n 2-3000 ' of MPI - Jlone b u r s t s more than 3000'f'rcrn. W I - Nene

t 'O!lon1" ....... OZ"rll/ltiontl '\:lore p l o t t e d :l.t2 " ,3r.

' l>.

Tho balcoce or bombs airborne but not accounted f a r abovOI60 x 500 l b . GP jettisoned25 x 500 l b . GP dropped all.

bef'ore bCltlb run (2 8 vl51 b l e i n photQSand p l o t t e d )Primary Target w i t h 7 ) r d t a n g taM:lZ!tion-no ca.mt.ors.J.r.RR.r. T IVI: REPCm' I

The t a r g e t 1708 cOl:lpletely obscured by smoke end no burets ~ ( ; r crecorded on s t r i k e photogrophy. 1.11 bu rs ts r epo rt ed nbove 'I"l'erecalcula ted f r a n 1't1ir t o poor s t r i k e photography. l .nolysle of t h esuccess of the mission based upon ca lcula ted bure t s r e f l e c t s thetthe ,..pI ross u e l l covered end that an effective pOttErn of bClllbsnBS placed on the assigned target areD. The smoke bil lros overthe target a p p e ~ r to verify the calculated impact arcs.One o f the a i r c r a f t rclcescd prematurc!yand bcmbs struck appraximo.tely 16.000 1 shar t of the targcta These bombs caused possiblet o a rai l road and t ra in-- these bcmbs f e l l l'7ithin S small built-upSrOO aThere is one cluster of bursts about 14.000 1 short of liIPI .....hich r.eare unable to ocrount far \lith infarm:ltion avai lable a t t h i s timea

S'ffilICE ;,TT1.eX REPORT 3l4th BOMB l'iINGTime of l.tte-ck: 070113Z - 07012420 Bomb Losd: 7)2 x .500 irJ.J1l>4Heading Over Target: 670. 680 76 0 TrueNO. life over Target: 33

Fused: al Nose, NO t a i lNq a Bursts on Target I 4.50

Bombing accuracy: EXcellentN C l R R J ~ T I V E REPORT:

Good qua li ty s tr ik e photogt'sphy shO':ls excel lent resul ts u i t hseveral h i t s on the i,/P building and addit ional h i t s and n ....!Jrmisses concentrated on the buildings n i t h i n .!Jppraxlm3tely 1.000'o f the A/P.Smoke and dust quickly obscur.:d the t3rgct nrf;l1, prt:v",ntins furtheraccurate assessment,

BaIIIblDB sta t1Btics:_ dropped 732Y181b1e burste - 264

- 35 -


38/59


39/59

ISSION 72 5ell! B.W.

7 AUGUST 1945f'lvr\li'AMA NAVAL ARSENAL

90.21-1653CONFIDENTIAL

VISIBLE BURSTSo PROBABLE BUlSTS== CALCULATED BURSTS. -STRIKE ATTACK RPT 135C.J.U.-20AF

I

--


40/59


41/59


42/59

:1T-" .........._ __(r:.r!llil $ : ' ' ' ~ F __c_.

" 'U ' c ' -e o '" iii C le1;ev Q ' ~ ' " " ", o . o ' : ' ~ ...];,'\ AIr:, ........,.......,;,t o . . o r " a l l ;:'1lta 017''' c'!ll",,lo".IiItrlke r b . ~ b y ~ . ! a . ";ulll+-,. ". oto .. ;re. ,t la '" ': r frl:

COf'&.l.Ia_.-).....wlll"""' ~ 1

. .1- JJo,

,


43/59

Strike Attack Repcrt 135C.I.U.-20AFMI':l,:>ION, ~ J A-J., 31'l, au.) - :7 A"'j ~ S KEY: V ' ~ " 3 L . 801'f'BS

O C f J f ! l P < J ; ~ b 6DIo'I1Ki

CONFIDENTIALJm!


44/59

E,

C0N30LlDf,.Tm ST/,TlSTIC:,L SUMMARY



45/59

WENTIETH W AIR FORCE'CONSOLIDATED STATISTICAL SUMMARY OF COMBAT OPERATIONS

FORM 34MISSION No"]] Augu,t 1945

-SECRET-.,-:.:.: :.,.: ,.:.:., ;:::' :::::::: :: ....." " . : . , ' , . , : , : : : : : : ~ ~ , . , . " : ' : ' ' ' ' ; ~ ; : ' ' ' ' ' ' ' ' : ' : :.:.,.

Field Order No. 15

. 1 5 . ~

. o . . .. .1.2 1

Aircraft Landing At lwo Jima. . . . 7

Crew Momber Casualties. . . . . 4:Percent Of Total participating . . . . O . 3 ~

)5"0 STATISTIC.lL CONT"OL UNIT

Aircraft Damaged. . . . . .P e r c ~ n t Of Aircraft Airborne

Aircraft Lost . . . . . . ..Percent Of Aircraft AirbornoCOST OF M I S S I 0 ~

m';"_SECRE r-

.t:;.'",,,:

4 Tons

96.5%

813 Tons

136

":",=,,!t:"':,,,:::" ' , : , ' , ~ , ""

Primary Target _ Toyokawa Naval Arsenal - 58th, 73rd, 313th, & 314th Wings - 3 SIluM.rons Each

41rcraft ~ i r b o r n e . . .Percent or Aircraf t ScheduledAircraft Bombing Primary Target. . 1211-Percent or Jombing . i rc raf t Airborne. 94.7%~ o m b 9 Dropped. On Primary Target.Bomb. DTopped On Other Targets Bombin 'Results _ no damage assessment available at thisdato.

E7F!9!lVENESS OF MISSION


46/59

7_J.'_'S.

8 K o a K '------

2 eupor dwDbo a1rcraft an('t. 1 wind run aircraft .I 1 aircraf t Bcned all 'Wcathor ship a t asecmbly point; carriod fu l ' bomb load.S. Iupor 4umbo aircraft .

1 1 0R IT--- -- MISSIOlf }17A IRCRAF ' l ' PART IO I PA . T I NG'DIll !l\&D on Ill'1!l _ 7 AlJgll'jt J 94S.,na: 07 llE'I'OIlIT__ 1 ~ . u L J D AD- mmn or me..,.,. . . to BOlD DAD 7USt us, DUB 71llS'r lIOMBlHG :BOK!lIIGUIIOJ7 L4ST P R I M A R T ~ O o N D A l l T JlClMBI!I'G COMPL!TI!a'lUGm OTBRI j,tIlILun un IOJ,. LAlDlJO6 Aug. TADGE'l 'l.lllGl:T8 MISSIONS CtIVllJrnoun .l!

33 J 1 32 1)50 Z 1819 Z 7 Aug. 0)35 Z 0335 z 30 _ IIQ JIM&- jO 21911 33 2 31 " 1810 Z 1825 Z " 0)0) Z 0822Z 29 _ _ _ 33 - 3 - __ 3 211391

35 - 35 " 1)54 Z 1828 Z " 0712 Z 01324 Z 32 - - - 32 I 3 I 3111 35 2 33 , 1)40 Z 1809 Z , 0)29 Z 0809 z 33 - - - 332 - 2 - - - 2 26511 136 5 131 6 Aug. 1)40 Z 1626 7 Aug. 0707 Z 0635 Z 124 - - - l24 I 7 I 75 - 5 - - - 5 5


47/59

1 I - I - I 1 a2

- - - 1 b - - - - - 2- - - - - - - - - -3 - - 2 - - - 2

IlIll1W1llW. lAILtJIIII

WOR_MleT_1 '_D 1_"In SECOHIlAlJ OTB!R0_NISSIOJf _ )17I14T1 7 August 1945E REMY ACT ION

1I0R_Ern",. t BOMBI:]) I"""'EDIVI DcoRIWtT 01'HER

!!!!!BR.UKDoWl'f or ALL AIRCBJ.FT lJ.ILlNU TO BOMB PJl.IMARt TARGEt

PERSOlnlEL ERROR I nIGHT CONDITIONS.011- I I I .0._nCT_ :BOMBED BOMBED EFnCT_ I BOMBID ISOMBt.In SECONDARY OTHER 1 '0 SECOIIDDT OTHERIIlllCDIl IBllIIBEDUCOIIllUT 0'l'IIIIl...

a Maintonanco orror.i Air crov orror wS ICR I ' 1 '------


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--


49/59

olIECRET- - - - - -.

MISSION _D IS P 0 S IT lO B "T:BOMBS Ill"" - 7 ~ " ' ' ' 19115-run LOAll!D ON .A Ill.- REI.E'SED ON TARGETS

tift IllIIIl I SI'l"rIIIIl :BOlIn .IRCRAFTRo....1 Tall No. 1 Tons No." TOIl.I J'l:TTISOBl:D IIJ:TOI!W>Wo. 1 Tona - - I 0_Ilo. 1 'lon. .,. T,. . .. Ton. T No. T foa

-'l1-li64 5001 G.P. :1 :H. D. 960 240. 880 220.0 14.1114I!I7A2 (WP) Smoke - 7 - - - J.5 66 16.5- - - - I - I - I ] .A1l-II64 5001 G.P. .0 1T D. 879 219. 801 2003 - - 78 '9.5.111-1164 500jl G.P. 0 H.D 928 232 840 210.0 - - 88 22.0A!I-lI64 500jl G.P. .0 F.D. 732 183. 732 183.0

.lll-M64 500jl G.P. 3499 874. 3253 813.3 14 ).5 232 58.0AII-M47A2 (\1') Smoke 7 - - - - - -5:.01

- I : I ]TOTAL 3506 374 3253 g'3.3 14 3.5 232 - ]a D r ~ e d on .&eobltt" point'

! ! . ! ! !


50/59

Include. vie1'ole and. celcula te d bursts .

Tovoltaua Navlll l\ .rseril (90.21 _ 16

3253 1 1290 1 902 1 282 I 527 I 3001'11 3 9 . ~ -\ 43ra 67.4% I 73.00:

8 I 0 I I ,------

7 August 1945MISSION SWlelOOnt to Uission 1,)17D .. .

IDTS SCORED WU'BIB 1000' I BITS seORED WInlB 2000''l'O 'I'O'l'.u. B.E. I 'to 'l'O!JL R,E, I TO '1'O'tAL H,B. I TO TOTAL B.I BOMBS DELUSED llOMBS SCODD BOMBS BEI.lJ.SlJ) llOtms scom

! ! .Q.! ! !"ACC1lR.ACY OP :BOMBING OW PRIMAllT 'URGET

ICIII BITS SCOnD .&.lID DISTANCE noM ..lIKING POINT

0- 1000' 11000'_2000' 12000'-3000- I=, I TOTAL, .


51/59

MISSIO, ----.;Jjl1l.l_ _IlAn 7 !"!,, ,t ) gh5

PJ:R80lDlEt CASU.u.TIISTOTAL I IM"5-1 ' ' '-0 I TOUtPARTICI_ KILLFJ) 110 .. IRJtlB!D C4StW.T1ISIP.L1'IBGTOTAL

,n e 364 ~ l o n e6 - - - - - - 6 393 .,""6 - - - - - 1 5 393 - - 4 49 - - - - - 5 4 402 ~ o n e

6 15 1552 - - 4 421

!!!!!

AIll:CRAFT DAMAGED

IEllEHYIAOOo,O\lll I IUB-ENEMTIENEMY A/e &, &, GUNS OTHER KNOWN IKAJORI MINOR/O A/A "A HEORAIRCRAFT LOST AND DAMAG!:D _ PERSONNEL CASUALTIES

1

1

ilone

None

:ione

J.IRCBAFT LOST

ls i

1

IIIIIMT IAOOo l I till-IIIIIIMTIJ./O" " O_R D O ~ I W U LJ./C J./A J./A MJ:CB

.! Crew forced to ball out over Iwo J1ma when f lak d.o.maso preventod control of aircraft

S SORE T------11 ilion aboard, all Nscued.


52/59

, , 1

1 , ,

00''"'"'.,.,, ,

I I I

I I I Ia. IIi ii J U ~ ~ ~ ~a & \ r - - - - + - - - - ~ - - - - - le II ..' F + ~ j + = '= '= '= '= '=====1: I I:: .. r - - = t - - - - - - - - - - - - - - - - - - ~EIIIi !'li Il

..,'"'">,,,'.,

I I I I

I 1 I N N


53/59

! ! ~ ! ! !317

LIGHT ~ f & FUEL CORSUKPTIOMISSION I'IUH:S1:R

"" .", #317 "'311 1317 . " - "" 7""UlJ!I'I7 ".URCRAJ'T COll'SI1IEBXD 28 28 30 32 118.j.V'ElUGJ: nnNG T:DO: 14 :10 13'39 13 :31 14:13 13'54FUEL c o n s ~ :

.j.verage 5679 5306 6010 6167 5926Maxau. 6025 6211 6255 6604 6604IHo1Jrnm 5400 5410 5768 5534 5400

F'OEL BDUIlfING:Average 785 917 747 1107 g94- " ' ~ 1050 12lg 1050 1656 1556MlnUr1Dl 475 589 435 700 435

.j.VG. GALS. USD PER HOUR 401.1 435. C 444 . 433. 428.fotJ"L OSED ON .&lBllORn C no"" " '" '0 21144' 217'77 788201

'llEIGBT DA"'.A.., "NO .A.lRCR.A.Ff JJ.B1lcmn ,2 " 35 33 131AVG. RASIC YT. OJ' AIRCBJ,ft 74819 75194 74980 75616 75152.A.YElLlGE USEroL LOAD 61400 62230 51405 62390 E11l59.1YG. NO. or BOMBS LOA.DED

30 - >t6 28.4 - 26.5 - 22.18 - 26.71 -!,64 ,


54/59

F

'IO'ENl'IEI'H bIR !ORO!: FIELD MOIR

Mission No. 3177 4ugust 1945


55/59

F.O. Ifl";( .) 11.,., :::ontrol: L':ld squ:ldl'on pUllS HI o\' , r Ocpn'!"';.ur .. P\'\n' " .

07llooK.c . JIJ t.h fan,S:

mPriOll,:'ry ..... i 8 U ~ l : 076102S'JCCfi

(c ) Enrout.! to t"U"fC>'t: 6,000 - (,,800 (' H , nod a,ooo - 8,&00C"e". .

Prim::lry \ l i ~ u . : l . l 17,c..oo r I5 con:1:l r: r Visual nod P:-illl:".r' R,,1tlr: 21,c.co f", t .(4 ) ':"100 C c n ~ , r o l : Lncl SCju..a.dro:: !'Xli>S'::p' 0'-..;'"' rl.':i. ' r\;"ur., ' -oin ' " it

01111 "I':.d. ,314 t) , ;: ' inr:

FonCE Rl;C,UIFEDP r i n ' ~ y visual: 0 9 0 0 9 ~S...conoary ',' i su..,l: 0";..8086 J Scp.udronsJ &


56/59

1".0. t15C: ) .... , f)C' ultt ; , : 'w ' 1:1 1/\., r , ; , , , , : ' : ' ~ : l 1 . ,,:-:tl \ ' ~ l l l ~ t.r." 0:l , .- ."rilll .::! ~ i ~ u d ' > '-01' ':.' ... )>ri ~ . , ' .. ./ " l r Irf" n . . " ... ..1.ur .s .-' =1 ~ l i ) o , 2 1 t G:u::t:ron ..i.L' i . ~ : 0- 1Jljl,,'tt to:';-, 1f'f\ l : ; X ) . . ~ . t O ".,


57/59

G

DISTRIBI1I'ION LIST


58/59

CoPY No.1234 - 567B91011121314151617

181920212223 - 242526 - 272829 - 333415363738 - 6768 - 6970

71727J747576777879 - 60

DISJRIElt1l'ION'I'AcrICAL MISSION REPORT

C o m I t I a r x l i ~ General; Arnu A ir F orco aCor:mandine General ; U.S. Army St ra teg ic A ir F or cea ( ~ a r )Camlanding Genarc.l, U.S \rm:r Str."tegic ,d r Fo=ce3 ('Ale=.)Chief of St9f, U.S. Stro tog ic Air Forcos (Gu30)Commanding General ; 1\lent ieth ~ i ForceCoonanding General; Eie;hth Air Forcc> (Okinaw:l)Cocma3der in Chief, U.S. fo rc es , P a ci fi cChief of li;.val Op6l'lJ.tions, O?_16_VCatrnander in Chief; Po.cific Fleo t (Ildv !i:l)Corm:19mer in Chief , P..!Icific F lee t (Re-n- Hq)

~ a a c d e r ' A i r Force, Paci f ic F lee tC o m u a n : l e r ~ Third Flee tCanmandor; Fi f th Fleet~ e r ; Firs t Carrier Task ForceCommander, M3rianasCooiM.ndin& General ; U.S. Ar:ny Force:;, ' r ~ i d d l e Fecif icCoWllandin.:! General; Allied Air I 'orces. S.1P.i.Corrmanding General; Far East .\ir ForcesCommmdin.:! Generol; U ~ StroteGic Air Forces in EuropeCom::1an::l.iD.fJ General Medi t er ranaan .Ul ied lo.ir ForcesCooJ:le.ndin3 General; Fif teenth Air ForceCom:1!lIKling General; Seventh A ir ForceCon:mao.Hng Gener'll; VII Bomber Comr.l3.nd.Comnarding Generll1, VII F i sh t e r Cor.1maIrlCommending G e n e r ~ l ; Eleventr- Air ForceCou:m::.nding> General. 30ls t Fiel\ter '.1ingCorrmand 1-'4, Allie d A ir Forces, SJP..\>ATTN: Senior In te l l i Jcncc Officer , > R . A . ~ . F .

~ ~ n d e r in Chief. U ~ S 8 A r ~ y Forces, Pacific,crTN: G-2 (For Section 22. R(11)Officer in CharCO. Joint Inte l l igence CenterPacif ic Ocean AreasCownaoiing General , ,\r,ny Air Forces

A ~ r N ; AC/AS Inte l l igenceCor:r.1anding G e m e r ~ , .Ir"ny .'Ur Forces. ~ N : AC/AS. Intel l igence, Collect ion J iv :s icnCommanding General . U.S. Army Stratee;ic Air Forces (G-..1:--z)ATTN: Inte l l igenceComnmding Gener""l , U.S. A r ~ ' Stra tegic Air Forces (03).,10::')

, ~ N : C o ~ u n i c a t i o n sFOR: Counter f.1aasures Air Analysis Clnt-"T'Cor:manding Officet '. ' l \1entieth .li.r Force ~ : J , d e:.,:. S . : ~ . o c lBrigadier General, B.S. Hansell , J r .Chief o f Staf f . Twentieth . \ ir ForceDeputy CIS. Opns. 'Ilnentiet!l Air ?ol'ceAC of S, A ~ 2 . ' fuentieth :,,-r Fo:,:,oCh>t. ~ ' l l \> ? ....fare .Of'fi(' ., " - . B r . ~ J v h .\ir Fo:-ceGrC.!"l!lCe c.' 4 i c o r , . : ' - ' ~ n t i ~ t . _ .. ' , . caD i ~ e r . t o r of Tact icc. A-3. l \ 1 e ~ ' i ~ ~ FarceHiat or ic a l O f fi ce r. TWentieth A:l> Force

Ul11 . 1U I I


59/59

B1B2B384B5B6B7B8B990919293949596979B99100101

102103104105106107108109110111112113114115116117 - 130

C c m n . : u ~ : H n , g Gener".1; 58 th B o J n b s r d ~ n t .1ingCor.mmding General ; 7]rd Bombardment ; / ingCollI:1anding General; 313th Bomb:.rdment ",1ingCOlIc;llxling General; 311rth Bor:Ibardmont . ~ i n ~~ n d i n g General; 315th Bornbardlllo3nt ,Jing.

C o m m ~ n d i n B Officer; 3rd Photo Reconnaissance Sq~ d i n a Officer; 4 1 ~ t ~ , o t o Reconnaissance SqComm.."min,,; Officer , 55th Reconna.is8.::l.nCa Sq, lone R.::l.n30. feather .Cornm.

Documents

21st Bomber Command Tactical Mission Report 317, Ocr