Download PTU B.Tech 2020 March Aero 6th Sem ANE 322 Aircraft Stability And Control Question Paper

Download PTU (I.K. Gujral Punjab Technical University Jalandhar (IKGPTU) ) BE/BTech Aero (Aerospace-Engg) 2020 March 6th Sem ANE 322 Aircraft Stability And Control Previous Question Paper

1 | M-60531 (S2)-2099
Roll No. Total No. of Pages : 02
Total No. of Questions : 09
B.Tech. (ANE) (Sem.?6)
AIRCRAFT STABILITY AND CONTROL
Subject Code : ANE-322
M.Code : 60531
Time : 3 Hrs. Max. Marks : 60
INSTRUCTIONS TO CANDIDATES :
1. SECTION-A is COMPULSORY consisting of TEN questions carrying TWO marks
each.
2. SECTION-B contains FIVE questions carrying FIVE marks each and students
have to attempt any FOUR questions.
3. SECTION-C contains THREE questions carrying TEN marks each and students
have to attempt any TWO questions.

SECTION-A
Q.1 Answer the following terms :
a) Explain the term ?Elevator Power? and its importance.
b) List the various assumptions taken into consideration while deriving equations of
motion of an aircraft?
c) Define ?Stick Force Gradient? and explain its importance.
d) Define elevator effectiveness.
e) Define static stability. Mention the criteria for an aircraft to be statically stable.
f) Define neutral point with the help of a sketch.
g) Define tab. Classify tabs and explain its their function.
h) Define ?Maneuver Margin? and explain its importance.
i) Define ?Damping-In-Yaw? and explain its importance.
j) Explain the importance of ?Frise? aileron with the help of sketch(s).

FirstRanker.com - FirstRanker's Choice
1 | M-60531 (S2)-2099
Roll No. Total No. of Pages : 02
Total No. of Questions : 09
B.Tech. (ANE) (Sem.?6)
AIRCRAFT STABILITY AND CONTROL
Subject Code : ANE-322
M.Code : 60531
Time : 3 Hrs. Max. Marks : 60
INSTRUCTIONS TO CANDIDATES :
1. SECTION-A is COMPULSORY consisting of TEN questions carrying TWO marks
each.
2. SECTION-B contains FIVE questions carrying FIVE marks each and students
have to attempt any FOUR questions.
3. SECTION-C contains THREE questions carrying TEN marks each and students
have to attempt any TWO questions.

SECTION-A
Q.1 Answer the following terms :
a) Explain the term ?Elevator Power? and its importance.
b) List the various assumptions taken into consideration while deriving equations of
motion of an aircraft?
c) Define ?Stick Force Gradient? and explain its importance.
d) Define elevator effectiveness.
e) Define static stability. Mention the criteria for an aircraft to be statically stable.
f) Define neutral point with the help of a sketch.
g) Define tab. Classify tabs and explain its their function.
h) Define ?Maneuver Margin? and explain its importance.
i) Define ?Damping-In-Yaw? and explain its importance.
j) Explain the importance of ?Frise? aileron with the help of sketch(s).

2 | M-60531 (S2)-2099
SECTION-B
2. Explain the uses of rudder. Derive expression for rudder power.
3. Derive the expression for elevator angle for trim condition.
4. What is ?Rudder Lock?? How it can be taken care of?
5. Define ?Dihedral Effect? with the help of a sketch. How different parts of an airplane
contribute to dihedral effect?
6. If the slope of the pitching moment curve for a given airplane is (dC
m
/dC
L
) = ? 0.15 and the
pitching moment coefficient at zero lift is 0.10, at what lift coefficient the airplane will be
in trim? How much pitching moment coefficient must be supplied to achieve trim at
C
L
= 2?
SECTION-C
7. Calculate
0
m
C and
m
C
?
for complete aircraft from the following geometric and aerodynamic
characteristics of an aircraft at Sea Level. Also find stick fixed neutral points.
W = 25000 N V = 80 ms
?1
X
cg
= 0.3c X
ac
= 0.25c
S
w
= 20m
2
b = 11m i
w
= 1.5 deg m.a.c. = 1.82m
S
HT
= 4m
2
l
t
= 5.5m i
t
= ?1.5 deg ? = 0.9

0
( )
L w
C = 0.3 ( )
L w
C
?
= 5.1 rad
?1
( )
ac
m w
C = ? 0.12 ( )
ac
m t
C = 0.0

Tail
( )
L
C
?
= 4.5 rad
?1
( )
m f
C
?
= 0.12 rad
?1

0
( )
m f
C = ? 0.025 I
y
= 2000 kg-m
2

X
u
= ?0.045 Z
u
= ? 0.369
8. Using data given in Q.7, find the Roots, Period, t
1/2
/t
double
and N
1/2
/N
double
for Phugoid
approximation.
9. Explain various longitudinal and lateral modes with the help of sketches.

NOTE : Disclosure of Identity by writing Mobile No. or Making of passing request on any
page of Answer Sheet will lead to UMC against the Student.
FirstRanker.com - FirstRanker's Choice