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S#Fd#Tflffiflfor the Shfpping World
MANOEUVRINGINSTRUGTIONS
S#W#TTtrLfor the Shipping World
A.S.D. Tug
AS.D. Tug:
Tracbr Tug:
@I{TENTS0
,l
2
3
4
5
6
7
8
,-/:-- g-
_ 1_0
1 l
12
13
Az¡múh Stem Drñett¡g: SCflOTTE- ulüs elt
SCIIOTTEL urüs h$e bflY
@I{IENTS
PONT OF NPPrc¡TPN THRUST PIVOT PONT: RESFTANCE
BAStrS
A ROUGH DEA ABOIJTTHRUSTESCORTTT.|G.
VESTORF¡ ' FORCES
A FEW REMARKS ON PUSI-I.PTIL MODE
TOWAGE STERiIWAYSOFFEREI{CE BETWEEN BOW AND STERN'IOWAGE
BOW TT'G TOWNG @IWENTIO?{ALLY
BOW TUG - Bd'I' TC' BOW
EMERGENCY, DAI{GER -} -
É ¡ r = - . E - -
IE)GRCFES
PLOTSNFORTTiATPN (1) .-
Pr-oTSNFoRMATON (2)
DRECT PI,JLL I NDRECT PTJIISERN TUG BRNGS VESSELS STERN NTO A T{ARROW DOCN(
MORE MAJ{OEWRES
SDESTEPPNG UNDER AN ANGTEEMBARKNG ' DFEMBARKNG PLOT
ASSF¡I|i|G SMALLVESSELS
SALT{G WTIH OTG IJ!{fTONLY
OPERATNG SCI{OTTE. BOATS
STEERNG S�TOTTE. I,'I{ÍTS
STOP \IESSEL AND PTJSH fT NTOryv VESSELS_B?y Al.lD PUSH fr lN
BARGE TOWAGE
REÍTIAR(S 01{ SCHOTTEL PROPI,LS ION
SOü'IE IúAIHEMATESi
Dodrecht. llollar¡d: 20 Febr. 2001
i
14
15
16
17
18
19
zo
21
2.
n
RC. Shs¡t Ílo.olf. SCHOTTELASD, Prhsd by SCHOTTET
S#W#TTtrLfor the Shipping World
OF ApPUCATIOI{ TtlRttriT: PIVOT PTOINT: REIS¡STA}ICE
f PortsidesGtloTTELunit
E starbord sGlttlrrEl. unit
lal
IPPJ
Point of Appl¡cat¡on of vuater resistanceat speed 0: lt is inluerrced by
Sp€edDraltTrimRate dtumetc.
It mos cmtinuosly
Phot point
caused by
E)(AilPLEOnly P.S. unit in use
the leüy
Lener
SC]IOTTEL thrust
i;r¡tcrn SGIIOTTE-angh:h t o Bo¡t r¡m¡h¡ In ltr postlon beca¡¡s¡ the
Itagahst ol Apdhadon of thr SCHOTTE-
lE are hllr¡
f¡ sU¡ swlng In to
lland P.S. ebngsldc ür ¡etty
Page 1 oÍ 23Rt sheai No. 01!, SCHoTTEL AsD, hfrrd by scHoTr Et
for the Shfpping WorldBASIGS
S#Fd#TTffiL
td Pohú of Apdlcatbn dur*er mslstancaat speed 0: t ls Inflmncad bY
SpeedDraftTrlmRate oftumetc.
I moles cor*innuslY
Propeller wake hlts tln skeg and h¡IIniluerclng the mowment
T?rdrgh thb configrdlrn glns asmall¡rhawrse tectc T¡arese sPeedmlgt* be etBn mc€ as PoPclbr-uake does nd ht tlP hull
:.
TlIs ccrfiguraüm glws a smilert nerse recton Ttasse sPead wlll besmallerN.B.: t ls an lntetmedbte Posltlonbdupen tt¡e maxlmd trawrse wctorar¡d the neúral Posfihn
THs ccrfrguraüqt dso ghes a tnwrsemowmerf: t only b efrctlrP urhen P.S.Pmpellerwake mlsses tln skeg
Neubal posltlon:Tlreoretlcally üte tug emalns In thesame pcltlonPractii:ally ttn poslüon b Influenced by
WlrtdMlnorthn¡st dlfrrences
Page 2.ot 23R-. Sheet tlo. Ol!, SCHOTTEL ASD' Pthed by SCHOTTET
s#w#Frtrf,for the Shipping World
for the Shipping WorldSGF##TTffiL
S¡m tug undtr 90 d¡gr.
Rudderpropdlr configuraüonmakes P.S. propellerwakemiss the S.B.unit
Vesel l¡b¡ah¡d by bow ü.rg wllñoü t Goullt cfrengc
Page 4 of 23
S,B. tumirn moment:
lr l ' la l. l i lr lu IS.B. tr¡dderpropellerhas to conect it rith aP.S.trning manrsil
LeJ'LqJ
Rf. Sñ-i flo. 0rl. SCIIOTTEL ASO, m.d by SCHOTTEI
l{dicethe difrlerrce inthe tvYo configurtiotts
It stprvs roo" |!lto be more efrctiw:It has a longer laer
for the ShipPing WorldA FEW RETARI(S ON PUSH+T'LL IOf'E
S#H#TTtrL
,4.
1Ef rdld E'l
tilThrust norn both SGIIOTTE- units
Trawrse coítponent
Longitudind comPonent
Une brce and / or Fender tiction
Water esistance
lsllsl * lgl
lEEl
tEltilleJEJ
:II
ffil5 lr ^@Glt i
SCF¡OTTEU
Le\erd lil
LeEr d
x b J =
I_Egl ltdf the ressers breadth
At a certaln sPeed lt ls Pcsibb that:
IIEJ 'l!El ' = lLl' bJNow the tug doesnt push to S-B- anymceThe ressel ewl mlgütt tum to P-S
Reduce tug! Push angleHullacts as a rudderProfileLongitudinal rector increces
lgl o*t"o""
Pulling with a rery short toryline:Rudderpopetlers under an argle( About Zl degr.)Eficiency increases:
Wake doesnt tot¡ch tug's hulWake escapes easieralorg eselb hull
Page 5 of 23RC. Sh¡.r t{o. ol3. scHoTTEt AsD. htt d by sc}loTTEt
s#FdffiTrtrf,for the Shipping WorldTOWAGE STERIIWAY'IS
Secuirg ls mrch easlerlld tnmPared bY bt¡b orchaln
lf *ell l¡ mod¡nb lnd notbo mudt wrbr enbtsü|gq3 aft declc
Yc-f¡ ü¡rn end rpeed ¡n b¡rked ullñout dtngrr ñr tftc tu¡
ltb da,Eer tr dftfE beca¡¡se the glrtlrqrlowline rDment ls br a gpod paft elimlnated
by ths rldrüng nderpropdbrmdnelt re belorg'.ror ¡f tÉ t,& W bttO"r to¡,Ehes the tcssd: no danger arlses and damry uodtl
be mU mlna; Íg[U.Towline length ILI depending on ressels slze and borl shape; swell
and expectert finC speed : 30 up to SO m- i
(
Vesscl unrbrgood speed srlrtarÜy swlrgs to P'S'
Tug now ln a good pclüan to corpct tfn swlr€ In a s* uay
RÉrÍt dcpenG on speeq tonaga ard thnrst
Twllrp b slPlt* tug r"acts faster
Let gobwllne:
Tou/lne doesnl dloP in ttc sideTowline camd er¡terthe PoPellar
DIFFERENCE IN BOW AI{D STERN TOWAGE
lloüce tlre dllfcrencs In dangcr br
br and S¡rbutg¡ In ü¡l¡ca¡
--ir-'
Twingfronr bow: torlirc angle issllghtly less at same distarre
In swell: less ueptf 'blls'orto the tmdine
Towllrp t"m U"t" I
Uneforce giwsPrcpetlerbrce gfrcs
Heellngilornenl
\.1:':--
Tr¡g's *ffibtrtmlgütt torchwsseFs htll
sfiltqtdanger
Pusltrg slth towllm sbckedovuaY
Page 6 of 23
gtves
RL Shed Xo. Ot!, SCHOTTEL ASO. Prñrd by SCHOTTEI
-J------l
,¿----'J.+
s#tr#Ffltrd-for the ShiPPing World
BOW TUG
TUW lN G CO}IVEI'ITIONAIIYSECURIi.IG TOYÚLNE TO VESSELE BOW
Tug aPPhes ressd tqn lee side
BE AWART VESSE S BOW TIGHT BE BLOWN BY THE WIIf,' TOWARDS THE TUG
Tug is longer shelteldVessels heaúng line easily gets onboard
tn cae d h!Élsile üUuS!:Sqr¡eezirg SCIIOTTE-{nits to almost
net¡trd asks f¡r ergine adiustment to
keep cotrseTug starts to bel-¡ae moftt course<mstabd
Tnaresdispl*ement is cottüdled by:- The use of one engirc at tfb time- S[gütt changes in headirg
When lde ttrrustlsnotbo hlghlf speed alloua: the insile ur-E stop or
dead slw ahead ( 15 degr-ottw')
Use tle outsirJe unit onlY'- - A" t fiws a slight ¡ni'arühorement the
headiq_tras to be somervtlat outwards
The nert manoeuürE ls not mcommended
Tug lets ressd aPProach it
Tlús configunation alloue the stem to come
ln rery close in a saÉ rvay faciübüingtowline handlirgN.B. h case of a sr¡dden poblem only the
irside unit tras to be Frn (fil ) ahed ald
togetherwith the o¡F'tnrls wcton üÚsgiws
a s# escape PossibilitY
Tug is in unsheltered water and starts to rd
- Vesselb bow+ae tends to push the tug awry- A sligtrt course+frange of the wssd
dbplaces its bow mtry meters rccessitatirgthe tugmaster to reposititxt the tug
- As much more wind blors in üor¡t of the bom
the treringline mi¡ht be blown ¿¡wly' specCuf,ren tle bow is wrY h(¡h
Page 7 ot 23Rf. sm.r No. ol!. SCHoTTEL ASO, f'�fñ¡d by scHoTrEl
S#Sd#FFtrf,for the Shipping World
SECLRI,IG TUGñS BOW rcWL]tlE TO VESSELS BOW
ADVANIAGES:- Slrorte torrflne makes tr¡g raact btarto pllots oders- Alter rerlrrlng speed: tug can come abngslde br bor or sHe pushlng
BE AWARE YESSiE.'S BOW HIGHT BE BLOW}I BY THE WII{D TOWARÍIS THE TUG
- Wten ü|e tug lras good G(rrso stabl[ty stdnmys, lt ls a saÉ maffterr\fe up to abt. 6 kn. o¡ elBn mo]e- h 1¡¡s cage a corúol$le+ftch system ora propellersnpp[€ derlce b a gmd adnntage
- lf speed dfofftt: the qltsHe unlt stop or\afy slowastem
-' Us! mdñy $e lns¡d€ m¡t- As ft glros a sfigtt{mmrd motpment the
headlng hs to be somewñat qttwads-
THE NEXT TANOEWRE IS I{OT RECOÍII]TIEIIÍEDTUG I.ETS VESSEL TO APPROACTI IT
Tr.tg ls slple¡ed brtgrVessels hea{rB llne esüy gets mboad
- Tlis con{igulatbn allows the bovto oome-in wry close In a sañ waY facilltaüng
-towllne handling- N.B. In case of a s¡.dden proHn only the--
otfsÉe mlt l¡as to be ¡f ( ñ.il ) astem andtogetherwlth the qrtu/ads ector Thls ghes
a safu escapeposslHlfY
TrB is In unshelterad rrater and staús to roll
A trasse displacernert is corüdled by:- r¡slng one udt * a time- Saillng under a slight arBle
l t '
- hcaedhiohHlet tn¡stSqueezhg ndderpopdlers to almost ne¡¡üdrequlns endne adJustment to keep orr¡rse
- Be arrare: Wfth or¡twds sq.rcezed popdlers'lt
b hard to keep cotrse stemwaYs- Tug sffis to behave Yvith less cot¡se stabllfty
l¿I€+ ! J+l-cftf: -' -' jr¡_--:,.-ffi,-- i
-' -_..r*¿iT-
_¡
- A sliglf oot¡¡se change of the wssdttbpbce ns bqit many metes necessltaüngüte tug r,nast6f to rspcltbn tha tug
gqEEFSSEF
Rl. sh3.r No. 0r!, SCHoTTEL AsD. Pfht¡d bt sclloTrEt
S#Fd#TTffiL
flrcEilGYSTOP
for the ShipPing World, DANGER
Tests shorad 120 to f35 dogf. SCüIOTTE- pciüons to stop the ressel in the same
distance d¡erBfi sligtrtly sttortarrtan a complete l8o degr. sctloTTE- pcition
Keep bdh engines running dú¡ll speed
Tum SGIIOTTE- unitsor¡twadsin astem modo
=====:==:== MOVE HANDLES SLOUTLY ====!=======Thc sGl|oTTE- unlt nw l¡ aH. In ür¡ samr pocüon a¡tñ¡ ooPlLoT
sGiloTTE.UNtTswLLt{oT@FASTERTI{AN}rYDRAt'.|cSYSTEMSAtlowSon¡e SGHOTTE- units trara a shoÉest<oute system
THosE uMTs rAtcTlG slpRfEsr RourEwHEt{ coPtLors Are tovED ovER lSll degr-
CIGCK IOW YOt'R SYSTEM BEHAVES
BERTHI]IG CI-OSE TO DANGER z)NE
Kep away úorn darBer-zorn
Depending on speed, wind eúc. use P.S. unit astem; s.B' unil ahead or both.
A small prlse with P.S. unit ahead wil¡ be srficient-
Now a small pulse with S.B- unit brirBs the boat in'
A prlse with P.s. urit ctem will stop the boat and bring it into the berth'
No!¡: A trasse compmert 's
atreys present: t¡k¡ us of lt
Kecp lhc boat parallel to the bcÉlt
A¡ ¡fident poulr l¡ ¡vailabl¡ lt lr alwa¡c pocdblc to forcc the bow into lhc
rlglrt üroctlon.
iI
I' i
ffi-]f s i$c¡'torTELi
@ Í
R€f. Shest tlo. Ol3. SCHOTTEL ASD. Pthted bt SCHOTTET
Page 9 oÍ 23
..-lesl'' 'l!----'P-
for the Shipping World
Encerclse to estfmete tlE ün¡st rEessery to pt¡sh a certaln \essd an¡ay tom the óck
s###trFtrfl
l n ¡ e l
; - * * , - : - . . _ + ! . . - L + r ! - - J
6 tEessdv
l-""-l stop
I rua I is stopped by I n s.o.rrg I
A good aerclse insmdl sril ffiirB
I ls.o.rug I
VERY GOOT'EXERCNSE IN BOAT
OONTROL
s,l
r"¡
I lS.O.fud tries to get stenurays In frort d bolfl ofl-pl ln rrdrto stnn il
l r u c lHels a¡esl
| ¡,s.o.r¡¡g It-
hdgH il buseñ¡ ard s*
hritieiltyl As.o.rug I istmeduv I ruc I
I As.ur.rg I mo to gÉ a 90 degr. argile'-The towline is to be kefl in a straigft lirc in oder nd lo'infuenoe'ttecoursed I TUG IStart d slorspeed: Reped thls marpeurc aen orgr6 kn. speed
Page 10 ot23
'oÍsJrLs_te_en
Rca. Sheet No. 0r3. SCHOTTEL ASD. mFd by SCHOTTE|.
for the Shipping WorldPTLOTS TXFORXAITO¡{ ( r }
S#FdffiTFtrf,
= lmgnlngsselConarll¡nC tug
Azlmúh Stem Drire ttE
ASD b a trig hdp ro the dld c il rcsponds m¡rh Herto tds
tt¡sr a OOI|: lt allus a VSL to enter tle porl fester and ls lessby th€ VSLb propdler wd<e. I corlribule fo bler pcl
f . f le"aslerntr¡gASDbóletosecurfhet i l , l ¡ reuptol l kn.asi tsmnspeedis l3knlhernaste is l
\!rbh to compcrsde ór propelter rrakc and n¡üer motmeñts while secudng thc todim: so the plU I- tu mrAV hampered ry the ASD. Ur¡der lnoulaUe clrcur¡stapcs the well Éndered ban can push
Ilsgrirst the resselb st€rn to Éc¡¡itáe towllrc handllrg. lmrnediateily dtr securlng tl: tovllra the ttt(| |lis aallade ft|r th€ p[ds oders. DependrB on tonnags *rd epeed, emergercies are dealed wtth Ésterl
lor slourer but n'lthdrt any bss of tlme and dvualrs In the corect dlreclion. Herdly any steb¡llty groUem I-.
láScs as toudinc momfi[ anf ldderpopeller momeril climlrtde each dht penry or cdnd€fcfy. I
t l
f"\F*t,rgiúU"t worke ererBrsetnctctrBurhenlt***cot¡jicstó¡llty6tem. fovlineis I\Jlee*c to hade- ls fander aluays po¡nts to YSL: lt responds Ésterthan in sltuation 3. SecrrirB I
Itortirr pcsiUe rp to I kn. Tlds marculrc ls especlally tery usetu! witen VSL tlas to swlng lo ba IItrrcnGd sternuays b the b€rth ASD is ready to push as tr corfiob the toudine by ttn borwirph: there
I
Irs ürrs m rred to wan br VSLb cr€ut to lá 9o the tillirn. I
r¡sed ln a conertiotrlway Still lt csponds faster|hen CON.
is sa3r in this posllion el€n lf VSL trrns to P.S. I respords much bster. lf VSL glws 6tem:
ls less tranpered by the popdlerwaka e it b aUe to cqnpemete fs lt'
ttds pcltiqr lt respmds m¡.ch Ester. Af 3 Knb speed lts eficiency b twice as mtth comparcd
OON, The hlgherthe spee4 the better [s e[iclency. At 5 kn il is betterto r€d¡ce the 90 rbgr.
angfe: rnoo push compment b ldl ar¡d the hull acls as a slde n¡dder.
wltlrat a brlb can be stopped: cdttect speed to be kept bdm 3 kn. Pushing lrto a drydock canperbmed beslde VSLb bulb wlth 2 towllnes.
I Dtsernbart¡rg plld. Thls ms¡crrrlre is sder and eaierbr leaúrB the VSL especially wtan
lums to P-S. and Increases sped orls bh,n by the wird to S.B. (in thb case). Mote deck sPace
asllable brüre püof lder. I ls el|'n pcslble to B¡sh agdnst tha VSLI side. lts elficbncy lsSCHC
ETNEM
. ;Rsr. Sh!€t trlo. 0'13, scltoTTEL Aso, ffilgd by sclloTlEt
Page 11 of 23
s#Fd#Frfff,for the Shipping World
PTLOTS rlf(ntAnoil (21
can be mo\Ed In any drcüon: skleu¡ays anda lum on fhe spd to S.B. The 2 wlnch witepruúde fiff secuttB aÉ keep llre
fá \ lrco d'*" a stra(trüdread mcreinerrt: tt b aue lo push sldetreys and lo pr¡tl.\--t I
IFSO p,rst*" siderralp: ft ls de to stop VSL or to pu[ ¡t.II
60\ ISO scuA bea¡de the bulb urith 2 tqlirs: n b abb to pr.rsh ahead or to pr.dl ctem. VSLI Ua.r I\/
lfl be rrod sl&mys by a push ora plt.
I
G) fSO is aUe to push wiürd¡ torc*riq¡ a ligü|. small a n¡r¡erabte boal by lts propellerurake only.
It tF"rS" is secured easlly Dy 2 ( druü€ tr necessary ) wirrhlines only. Any moc wtric-tr b peslble by I
F¡ ASD b also f¡ossiUe nrith thc rnt, tt¡qrgñ slmr.
--J
l*O * &le to gire subtanüd shelterto a bet in dstress. Waes wlll be r€duced slgrüfcanüy by
F,¡rB n¡*peeCthn st. ASD emains tlly manmrrabb.
IASO S able lo celm srells in lts pr.rsh zotre on VSLb winthand slda.I
Page 12 ot 23
Rd. sh¡ei Na.0l!. scHoTTEt AsD. frited br scHoTTEt
for the Shipping Worldt IRECT PII-L f ¡I'ID|RECT Plrlt
s#Éc#Trfff,
Élslqed-D.t¡ry m$roar 100 %
Pdl under
STABUTYBor Hege
Tte SCIIOTTE- untts
9ñea S.B.lledirymanerl ardtlplour{¡ne
glres a P.S. Hellngmomerl: so lhey paillyelmlnate eac|¡ dter.
TUG BRITTGS VESSE.'S STER}I ITTO A }IARROW OOCI(
I}IDIRECT PULLElbcthéurith srASDtug oer5 knTha rolnd bow ha little reslstarrein the $Eter llil et knir speed.
DIRECT PULLEftcthrutlh an ASDtug mder6 Kn.ot€r 6 kn an ASD tLg ¡s nd able totum 90 rbgr.
Md<e a slde-slep wlthe lum.As hardly any atcad thrustis |et tugwlllÉllbackkeflng the tmlinetlglt.The winch migtt be useú.d to help.
When esselb speed decr€ases toabo¡.rt 6 kn Ya¡ hd betterstail themano€iníe as the hlghaspeerl
| _¡.1¡r" you to reep the todine tigtf .
| 3 J
Tr¡ prepaes lts pcltionNotlce lt to be a klnd of aside-step: lt praants the boirfrorn gdng to P.S.The twllne remaim ln rcssd'scentedinq not Intuenclrg pllofssteedrB
oty brake
As soon as tt|e trrg ls free fomthe dockb comer it ls able to Mngtheeselb stem in
I. J
I
I
STABIUTYSCüIOTTE- nrúts gis
P.S. H.X.Tm{1rc ghes S.B. H.I.
--..)
-l:-[*"o*.* _ <
.)i,-o-'*.-.-''-:'fiq--,..
.,-4 -.--:--<
..|j'<=.t''*.."'"1'<**,--*-.
s:--jJ
*:ij-'-'*-' .1 , * . - \ = . .
f
.-.':j'----'*....
.J,lo-o'"' - '..1
¡.+l::_ .- . ' - :1 .
.iwrt"rr*,1ld¡rect¡on I
isrER!¡
l-P-l Lilh thls posltion wethceselb speed
l=gJ ' |¡I
¿F,F-E-1
€ty¡' I
Y *FqSSTfOTTELi
ffi.Rq€?F I
Page 13 of 21 *
Éom lllDlREcT PULL toPULL rcqulr€lercrt c.t€
I J-1/
Rd. she.r No. 0t3, SCHoTTEL ASO, pftr¡ted by SCHOTTET
"s#Ff#Trfff,for the Shipping World
XORE IA¡IIOEWRES
SIDE PUSHI]IG
Poor watcrstrpply to
ütepropellerwhen ürgha¡much
SAIUI{G GLOSEALOilG AI{ O&'EGT
STEENNNG ASTERN IIGHT GNEA ST'RPRISE
Be an¡are of this efrct and no prúlems will arise:Auid this sitr¡ation by steeling with boffi units wtren sailirB fast astent
When sailing clce abng a dock or tessel:Watt le€l go€s down; this is mote pronornded asspeed ilrcreases
Suppce only P.S. unit is usad
llJ The efrcn will increase by the irtuardstra\rrse comporent
IEJ The trTprse com¡ronent now is ottrards-.s At knv-speed: tug mows out
At high speed: tug moes in
iii::::,nr"-""'""'i:
ilozzl¡ wot{¡¡ now asa bnke: lt als glvec
e *lng moment
Side pushirg when insuñdent roqnis lelt br a perpendicular pcition
To axid too much übration wa makeP.S. popdler mke miss üo S.B. tnit
The efficiercy is about 85%
Somdimes in astem mode thisconfiguration makes the stemtum to S.B. instead of P.S. asexpected
S.B. nozzle produces less thrustbecause of porwater supdyand acts as a brake giüng aS.B tumirg moment
Suppose P.S. popellerto be buledGira S-B.unil suficiert thrustKep tuming P.S-unitPopellerwillrun in bdh dircctionsand debds mighü be washed out
Rd. sh.d. No. ot3, SCHoTTEL ASD. ftrt¡d by SCHOTTET
S#re#TTtrLfor the Shipping World
SIDESTEPPING U}IDER AN AilGLE
We are asked to mote frorn the r,esselb bor to tlnresselb stemBeca¡se of tñe blg dbtarrce uE mtltÉ obllquelyas lt makes our speed blgger then a traterse mow
The rulttdepropelbr confls¡atbn loolrs skn llarto a sHeetep: only more thr¡¡st b needed astem.By remalnlng nry close tothe rassel wE save a ld oftlme
Thb mowment alfovs us to mmaln wry ctce tothe ssd e\,Bn urhen lt mores sr.tddenly ln ntñatewrdlmc$dr
When we approÉrh otr pcltlon we harp to brakeour slde speed and swlng Into a peperdlcularposltlon
Belng wry cbe to the ssd, we wont torch ltshull too hard tf bod contrd ls nd perbct
SDESTEPPT.IG UNDER AN ANGLE S ALSO POSSIBLE GOINGAHEAD
flBARI$NG ' DISETBANI(|NG PILOT
Sfongwird
A"d
R¡f. shet No. 0ll, scHoTTEt AsD, ffifi.d bJ scHoTTEt
A SDE MOVE ATANANGLE GOING ASTERNGOES MUC}I FASTER
Speedahead :2 -6kn .Tm slom Vessel nfb too much.
Tm ffi: Water spray wets boardlng zme.
l'tanoeuwE tras to be citne.üiir"rultenable th€ t g to lea¡e the ssels s¡ii-ebren
wi¡en lt has a goott sftle speed.
15 ot 23
s#Fc#Trtrf,ASSISTING STALL VEISE,S
lneeos gmc (
lenanre nae
By uslrB theqtsid+t¡nll the
tr{ib bori, comeso.t sligürtly rnrc
for the Shipping World
lfHs confguratbn makes the \€ssal lee\e I
IttE berth sideil¡ays
I
Rsa. She€t No. 013. SCHOTTEL ASD. P?tfed by SCHOTTET
tlús u¡ill be a tmtese
.. .lBor todirr_stnneneO I
stimde the resselb eslstance pcÍrl.9. An empty wsselb boil has mrch less
altstüp wlth rudder ¡t needs ptshirg ulell
S#FdffiFFtrflfor the Shipping World
WITH OIIE UilTT O}ILY
BEAWAREA Cdc$p compone nt ls alweyt Ptl$$t.
THEORENCALSupose thc propelbrwakc doeg rdirúl¡nnce the mopmeil.
lSl Propeller-uake brt¿ against skegrlFneru-¡wAt a oerta¡n R.P. arBle:
El t" compensded by the biggerSCIIOTTE- arplewhlcit gfs aresult slmllarto the theqetlcalmmment thorrgh less elbcthp.
Notice: trVlenboürahead and astemorfigrraliors applied atthe sarne ümeit will resr.üt in a side-sbp wittnut a trning npmerü
.o.A UYATERRESISTAI{CE TOVES A}IEAX,
a celtaln speed the tranerse resistanceis brexample 3 x tñe longitf¡dndreslstanc¡: Deúdion will decease end to
a tuming rnomeril the RP. arqle hasbe decrcased.
boat behales o,t ld is moedttE bow.
SCHOTIEL angle ha to bato keep the Thrct \cct$
the Reslstance rector in lir¡e inlo aroid a tumirg motnerl.
Polnt dAppllcatlon du,ator r€sbtarte
lrl Trarersc comporerüItl Longltnrlinal cofliporpnrIEI Thrust deliered by SC}IOTTE urút
At speed 0 orvery low; lfspeed inceases: it loks
StadrB at speed O the salling üretlon willbe in line wilh rhe sclloTTE unlt.
TOWING WITH ONE UlllT O}ILY ( Noturnirg moment )
.S,SCIIOTTH- erEEgEd only ( astem )Tc¡rirg astern wlth P.S. SCüIOTTE-
tou¡-poet only:Notlce bqrtrytine tlas to be in finewlth P.S.SCHOTTE- and Bmtm-pct.
ahead $4th S.B. SC}IOTTEL
stem tcrvline h6 to be in lirp
erEaged onty (ahead )
Page 17 ot23
Rf. sña.t No. ol3. SCHoTTEL AsD, Prhtsd by scHoTTEt
S#&6#TTtrÉ-for the Shipping World
OPERATIM¡ SCTIOTTE. BOATSITPORTANT:
All manoeuwes can be achiewd bymo¡ing the COPILOT üa'nq¡tral'.
Houewr bs a¡vare thd if idle erBlro speed is high:¡ Wder turbulenca can hamper own manoeuves and dher crallo Propellrrdce makes wats rise bdureen boat and (not open) dock or
rcssd makir€ it hadsto go almgside.¡ Debris might enter gopelles morc easily in shallow rnter.
A SGNIOTTE- boat is supposedo be operated with cl¡¡üches
engEgpd as much as pcsible:This saws the clúches.
Slowastem andtum to P.S.
_ ¿ '
Workirg ¡Lr lpñes' in ttrose cases migtf 'bé rsefrll.
trtü
Pcúr¡t of application uater msistance
TraeiseEtor
l:!l$ Lonsitudinal Fctors
t 1.1¡¡r* lgl.ririna. each dher
l,lotioe: A sidemor¡e as shou,n on page 2 is a onüination of bothpreüous figues
[l muctr usser
s#sd#Frfff,for the Shipping World
scr0TTE- |.HTSSCIIOTTE- U]IIT ROTATIOf, O(XPARED WITII @PILOT ROTANON
)
FoP¡Lor I
marneuwFrg a rudtlerprop* t¡g b basedthb princple lslrws ttc lmprtarre of üa
posltbn matchhg the SCHOTTELThe SCHOTTEL posltlon hdicdor is b
the SCHOTTEL posüon
Ihb poirú matctps the SCIPTTE- pciüm: The rncter has ihe
IN H]S HAI{D.
f fnGHT lolr b|dtr io simudde an a¡.¡tomotile lering systern hl it has to be '€alizd iil only worts
ntren sailir¡ streúgürt dl€ed on a sterrdrisr sseL I roils wruq uñen sailirg astem or marneuring.
TtF b¿3b n¡le dSCIIOTTE- ssd sailir¡ b: THE @PILOT lS llOT A STEEilNG WIGE- Bt¡T I
l{AvE Tl{E PR(PEr.ER ( Al,lD N CASE OF SAtUl{G A}IEAI} TI{E R¡l¡ftER } lX IY }lA¡{D. nÉri,ay my mind b nd occu¡id with the compu lirltags bdu,En the SCIIOTTE- unil and th€ OOPILOT
ASD trrgp ( ASD ) and Trdc tr4s ( fT ) cqnpare¿ tectr ¡.s bG¡cally b rcrt in the sane way if br
simdicily m skip sorne núror dÉfBrpes. : COlrFlfR ASD AS A REttERSlp lf. :
t&lul ñngof¡om bowwiús to
wfls eú I ñare to dlarpttrc $aning roÍdliol,.
,Éü, dfar,ga fio¡n bawuús lo sta¡I llcrw to dtarp lte ft$ boweú stan
Coblems rpwbnretes *púúo bdhtypes o{tt¡gs ffiialdy.
We hope thb short explanat¡on darifies wtrychanging the normal otation of GOPILOTand SGHOTTEL unit only causes conft¡s¡on,espec¡allyfor masters drivirg both ASD andTT.The rext pictures show how both types oftugs vuork almost in ñe same way
l^tt*. ü: rrarimurn si<ts1
lsteo corfigr¡áim I
WHFF 1IOI¡SEFLOOR IMüe
¡¡.e+l
ffir @scHOTTÉL|*����������������*rrnry i
.-.- -()
Page 19 of23
R€f. Shcet No. 013, SCHOTTET ASD. Prmrd bt SCHOTTEL
for the Shipping WorldsT(P VESSE- AM) Pt Süt 1T ¡rl
s#trffiTp-trf,
slak literrdl m&
t . ./,-:;i:,.\ . - iÉ"'E=,I
bdr by rnanann¡ear¡d
It urdl t€¿ torn wsselb
slack llne uell ur¡&rboür bt mare¡¡read
il rellfree frorn psselb
0xIi' ! -h:
elXsi
I t - '
*iFl
Tt¡ulilrEssE-'s Bow A¡f, Pt¡s]r IT rN' *
Keep slack llne u¡ell urxbrcontrol bcllh ry mar¡eu¡eandwlmlu
: :_ . . . : . : .
rrc ndüraard atum.
wirrhto ghc tast
!l ' I.l
x!I
{11 cltre"sn"ll ' h \
Olx,r.eswsse* |Tmline ls sMened
lo Clcfs
qrffi;-lOllgtr#:nl
pr¡sfts rcssefbinn'lthama.
Cltffi"sn*lOll.ff'""*'
5$:
x- -LJ:::+r|Jro,x'xnx¡Itesnonse to ¡fhfs Ilodets. I
Keq sbck lineucü uÉrcoñtrd bcñ by mrslleand
STOP T'ESSEL AND PUSH T|T H
Page 20 of 23
RC. Shes{ No- 0r!, SCHOTTET ASD, Prhsd by SCHOTIET
Small empty barye with some slem tñm
MaKe SB.SCHOTTE.unltb wake miss thetugls hull.
S#trffiTFtrf,for the Shipping World
trldlsj
To mocthe t,tr¡lt sidmys youcan lmag¡rt prlling lt on a stringnrh¡ch b att*hed to AConñgue both SCHOTTE-urits so tH thdru¡ork wctc isIn lire with the imagirary sting.
LJnited poinl d ryplicdicrmt€r Gs¡starrceTraerse tiectú
Wlr¡ch lineAs the strong winch llnes arewry tlgtt, only 2 are needed.
leneeo ruove I
rLI s.e. runn I
(-l- i
FFrr-lW if drffi¿q*
SCHTTTEI-
Page 21 ot 23
Rd. Shest No. Orf. SCHOTTELASD, Prhed by SCHOTTEL
s#Fd#Trtrflfor the Shipping World
REilAR}(s OlI SC}Í)TTE- PROPTX.SIOil
SGIIOTTE- h¡os abor¡tenglne lde speed
ASCHOTTELT¡g b supposed b be employed as much as posslble wllñ lts dutches engaged whidt
requires lhe englnes b be run at bw ldle speed-
lulanytechnlcbns unfamlllarwllñ the use of SCHOTTEL hrgs howewrtend to:
- Arttust idle speed bo hbh b be on the saÉ slde wllh englne dropotttwhen engeglng.
- Use an englnewhlch ls ndable b copewllñ'normat'klb speed.(30 b 35 % dma:Úmum ¡¡m.)
- clrocethe clubh bo wealc so ltruns hotwhen engaged bo manyÜmes.
- SEw money by omlüng lhrust reducüon sysbms.- Blame the ürg masbrwhen he uses tñe dudps too ltsss-
Theoreücallyltls posslble b make anymove bysbedng
and throtülng only,while cluH¡es ¡emaln engaged.
Be aware thatespecblyathlgh ldle englne speed:- ibre watert¡rbulence hampers own ürg and othercralL- ¡tbre tlable b suc|< debrls Inb lhe propeller.- Higher fuel consumPüon.- lvbre übraüon.
When udrrg tñe clublresBear In mlnd abovemenüoned ¡emarb and
Outclúrg in /or¡t too much is rpt tm good br ddchesVibration has to be awftled $ñen possible,Fr¡d conswnptict dsocost rnceY
idle speed:tess engaging manert on clutchFeuerergagirgsl-ess watc t¡ü¡lerpeLoss fr¡d corsum$icrl-ess damage qr dock and bndersS#rbr masterand crew
L
Exdnple:BP=Bolla¡d pullat RPM (max)
= RPM (dual)= FIPM (mar.)= 1(X) oA BP x A2 lM2: flXX6fll/180018m = 11ilo: 14To
- tbre atenüon ¡reettecl as trg mor/Bls conÜnuously-Ewn afierwalüng ftlran e¡úended perlod of üme itsomeümes happens ürata dellcab manoeuuo falls
because ofwabrü¡ñulance and tñe clutcfies süll haw b be used.
Some masterc hare found thatwabrt¡rbulenca can be mduced signlflcanüybyuslng tte SCHOTIEL
unlts In an Inwads posltbn accepüng tñe lncrease In vlb¡atlon and e¡üa fuel consumptbn, as the
englnes audlblyhave to wort harder.Suc*r poslüons are b be arolded as tñe wabr pr€ssur€ mlght damage üte seals of üte undeltaErgearbo:<, espec{allyat Increased englne speed. ( See also SCHOTTEL manual }To reduoe spee! ortenslon on tñe bwllne the SCHOTTEL unlb are b be used In outslde poslüons in
orderb awld-them woülog agalnsteach other.
MThrustLrsr¡d
This pcitim must be a\dded
It might damage sealsIt ca¡ses übration and ewn e¡<tafud corsumptict
Water turh¡lence hampers owntug and other crafr
Uable to sr¡ck debds ¡rúo pope[ers
Morc fud consumption
A\oid inn¡ards SCüIOTIEL urit positimsgreater ttsr 45 degrees
Rú. Sh.et tro. 0rl. SCHOTTEL ASD. F,ñed by SCHOTIET
for the Shipping World
FORCES ALOI{G WORIO.INE
s#tr#Frtrf,
XOIEIITS
I w l= = | m,otwrorreprrcec II aoq¡uto*line I
lewl= =¡ P¡opelbruake I
POIITOF APPUCANOil
Resdtlng Astem Forca: 3 T.
lPo* l= = PolntdApflbatlcr
€ ;
P.o.a I
+)
"c:
¡ i "G .D= l -s r ' * lI t ft (r,D =l -zr.'. I
Tr*".7
* l . ld = l+2r r .m. lr @) = l+2a l .m. l
¡"ue I p^o¡" I l-45'rrnl
Veilical
l t l tQC=f +6r . ln I
El* ( rD= l+6r .m. IT+1rr.*l
H
V
Moments wilh
PROPTTLS|OT{
I nmeans a Rfuirtr.rtt¡ngrsÍerr + 2T.n I
i
r iI
I
Force ghes an accelerálon.lf the tug does nd accdemte (and twn) anymorc n
tte Force (Resdtlrg Pmpulslon Force) end the(HrIl Resifance in rder and / a Tqvlirc
are equd ard ha\t oppGert drect¡ons.
SOTEIAT}EHATIGS
le.s. eroe"rrer Force
Verticd El El = l*,Resultlng P.S.Traeee Fcce:
RC. Sñect No.0r3. SClrgfTEL ASD. Prhsd bt SCHOTIEL
Page 23 ot 23