7/21/2019 231.01 Identify 4 Forces on Aircraft

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M231.01 Identify 4 Forces Acting on an Aircraft FCpl Sy

MTPS:

• !ery a"c #as $eig#t% #eig#t &

energy

• 'e$ton 1% relati!e to a"c

• trade alt for a"s

• glider $ings designed for (est liftprod)ction

• po$ered a"c e*perience 4 forces

+(elo$,

•  T"- o!ercoe /" ena(ling a"c to y

Materials:

• $riting )tensil +c#al"arers,

• piece of string

• odel airplane

• 1 s#eet letter sie paper

4 forces

• -ift

•  T#r)st

• eig#t

• /rag

.g. glider: no t#r)st

Part 1:

+co!er gro)nd r)les for class to (e r)n,

 TP for

lesson

 TP acc. To

SP

tiin

g1 1 !ery a"c #as $eig#t: raising $eig#t adds energy

eg. 5lider on to$% roc on cli6 

+e*plain inetic !s potential energy,

7

2 8 Po$ered aircraft e*perience: -ift% T#r)st% eig#t

and /rag9deo $" diagra

10

3 3"2 'e$tons ;rst la$: o(<ect in otion tends to stay

in otion

• /eo )sing paper glider

5liders e*perience drag ()t no t#r)st

20

4 = T#r)st and -ift o!ercoe /rag and eig#t

• Analogy: t)g9o$ar and (alance

• /iagra t#e a"c $it# forces

7910

(l)e #ig#lig#ted section ay (e co!ered in Part 2 depending on tiing

 Part 2:

 TP for

lesson

 TP acc. To

SP

tiin

g4 = T#r)st and -ift o!ercoe /rag and eig#t

• Analogy: t)g9o$ar and (alance

• /iagra t#e a"c $it# forces

7910

7 4 5lider )ses altit)de as energy on descent 10

7/21/2019 231.01 Identify 4 Forces on Aircraft

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M231.01 Identify 4 Forces Acting on an Aircraft FCpl Sy

8 3 5lider $ings optiised for do$n$ard otion t#r)

air

• Aspect ratio (et$een long"sinny and

s#ort"st)((y in)ences $ing

c#aracteristics

9dra$ o)t plan for of airliner !s glider

7

Concl)sion: restate topic"instr. nae% gi!e coents and eail