Download GTU (Gujarat Technological University) BE/BTech (Bachelor of Engineering / Bachelor of Technology) 2019 Winter 8th Sem New 2180101 Aircraft Design Ii Previous Question Paper
Seat No.: ________ Enrolment No.___________
GUJARAT TECHNOLOGICAL UNIVERSITY
BE - SEMESTER ? VIII (New) EXAMINATION ? WINTER 2019
Subject Code: 2180101 Date: 27/11/2019
Subject Name: Aircraft Design II
Time: 02:30 PM TO 05:00 PM Total Marks: 70
Instructions:
1. Attempt all questions.
2. Make suitable assumptions wherever necessary.
3. Figures to the right indicate full marks.
4. Attempt Q-1 and Q-2 (a), (b) in drawing sheet only.
5. Use drawing instruments for sketches.
MARKS
Q.1 (a) Only draw intermediate section of a circle to square adaptor having
one end of 10 cm of diameter and other end of 10 X 10 cm.
03
(b) Only a geometry of a side view of a jet fighter aircraft 04
(c) A delta wing has a root chord of 24 feet and tip chord is 3 feet. And
wing span of 24 feet. Draw a layout of a wing showing Mean
Aerodynamic chord, Geometric Aerodynamic Centre, C.G range.
Mention elevons and leading edge flaps on layout whose Cht = 0.14.
Taper ratio of elevon is 0.7. Note: Tail moment arm is 24% of chord
up to trailing edge of delta wing.
07
Q.2 (a) Only draw layout of a horizontal stabilizer for cruise mach number
0.85 having span of 48 feet. Root chord= 10 feet. Taper ratio is 0.4.
Aspect ratio is 4. Control surface size is 30 % of chord.
03
(b) Draw side view of vertical fin for mach number of 0.85. Height of
vertical fin is 24 feet. Taper ratio is 0.4, Aspect ratio is 4.
04
(c) How will you manage to spread longerons along with fuselage
longitudinal axis? Explain with reference to fuselage lofting
techniques.
07
OR
(c) How will you prepare shapes of formers such a way that you don?t
require to manufacture skin panel by dye forming process?
07
Q.3 (a) Explain requirements of supersonic area rule. 03
(b) How will you reduce overall detectability of a subsonic large size
bomber?
04
(c) Discuss design considerations of supersonic jet fighters with respect
to radar detectability, sustainability against battle damage and
maneuverability.
07
OR
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Seat No.: ________ Enrolment No.___________
GUJARAT TECHNOLOGICAL UNIVERSITY
BE - SEMESTER ? VIII (New) EXAMINATION ? WINTER 2019
Subject Code: 2180101 Date: 27/11/2019
Subject Name: Aircraft Design II
Time: 02:30 PM TO 05:00 PM Total Marks: 70
Instructions:
1. Attempt all questions.
2. Make suitable assumptions wherever necessary.
3. Figures to the right indicate full marks.
4. Attempt Q-1 and Q-2 (a), (b) in drawing sheet only.
5. Use drawing instruments for sketches.
MARKS
Q.1 (a) Only draw intermediate section of a circle to square adaptor having
one end of 10 cm of diameter and other end of 10 X 10 cm.
03
(b) Only a geometry of a side view of a jet fighter aircraft 04
(c) A delta wing has a root chord of 24 feet and tip chord is 3 feet. And
wing span of 24 feet. Draw a layout of a wing showing Mean
Aerodynamic chord, Geometric Aerodynamic Centre, C.G range.
Mention elevons and leading edge flaps on layout whose Cht = 0.14.
Taper ratio of elevon is 0.7. Note: Tail moment arm is 24% of chord
up to trailing edge of delta wing.
07
Q.2 (a) Only draw layout of a horizontal stabilizer for cruise mach number
0.85 having span of 48 feet. Root chord= 10 feet. Taper ratio is 0.4.
Aspect ratio is 4. Control surface size is 30 % of chord.
03
(b) Draw side view of vertical fin for mach number of 0.85. Height of
vertical fin is 24 feet. Taper ratio is 0.4, Aspect ratio is 4.
04
(c) How will you manage to spread longerons along with fuselage
longitudinal axis? Explain with reference to fuselage lofting
techniques.
07
OR
(c) How will you prepare shapes of formers such a way that you don?t
require to manufacture skin panel by dye forming process?
07
Q.3 (a) Explain requirements of supersonic area rule. 03
(b) How will you reduce overall detectability of a subsonic large size
bomber?
04
(c) Discuss design considerations of supersonic jet fighters with respect
to radar detectability, sustainability against battle damage and
maneuverability.
07
OR
2
Q.3 (a) What is importance of over nose angle? 03
(b)
Only draw a cross section of a pressurized fuselage of a public
transport aircraft having seating arrangement of 3X3. Mention ideal
seat width, aisle width, and aisle height as well.
04
(c) With neat sketch explain considerations how to locate expandable
payloads on a layout of a supersonic jet fighter aircraft?
07
Q.4 (a) With neat sketch explain gear retraction geometry of nose wheel of a
jet transport aircraft.
03
(b) Only draw a side view of a conventional sea plane hull. 04
(c) With neat sketch explain selection of location of 3 similar types of
aircraft engines.
07
OR
Q.4 (a) How will you select tail moment arm for a conventional aircraft while
preparing layout?
03
(b) Explain only 2 types of jet VTOL configurations wit neat sketch. 04
(c) Discuss fuel system integration with neat layout of a jet transport
aircraft.
07
Q.5 (a) Discuss castoring wheel geometry with respect to positive stability of
nose wheel damping of directional stability.
03
(b) Discuss any two types of prop VTOL configurations with neat sketch. 04
(c) How will you locate four turbo prop engines on wings with respect to
span wise and longitudinal locations? Discuss about clearance
between propeller and fuselage, clearance between two adjacent
engines.
07
OR
Q.5 (a) How will you select types of shock absorber of a landing gear? 03
(b) Only draw any four types of helicopter main rotor configurations. 04
(c) Discuss considerations to locate subsystems in a fix wing aircraft. 07
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This post was last modified on 20 February 2020