GATE Flight Mechanics & Space Dynamics: Airplane performance: drag polar, take-off and landing, climb and descent, ceilings, range and endurance, load factor, turning flight, V-n diagram, winds – Previous Year Questions
21 GATE previous year questions on Airplane performance: drag polar, take-off and landing, climb and descent, ceilings, range and endurance, load factor, turning flight, V-n diagram, winds (Flight Mechanics & Space Dynamics, Aerospace Engineering) with answers and explanations, from every paper.
- GATE 2021 AE Q33 – A jet aircraft has wing loading 1800 N/m², wing area 30 m², drag polar C D=0.02+0.04C L2 and C L,max=1.6. For air density 1.225 kg/m³, the speed for…
- GATE 2021 AE Q40 – At the top of an inverted vertical loop, the airplane load factor n satisfies
- GATE 2021 AE Q45 – Which aircraft-performance statements are correct?
- GATE 2021 AE Q64 – An aircraft in level flight at 100 m/s has weight 100000 N, wing area 30 m², span 10 m, zero-lift drag coefficient 0.025, elliptic loading and density…
- GATE 2022 AE Q18 – The service ceiling of an airplane is the altitude
- GATE 2022 AE Q32 – An unpowered glider is flying at a glide angle of 10 degrees. Its lift-to-drag ratio is (round off to two decimal places).
- GATE 2022 AE Q40 – For a conventional subsonic aircraft, e is Oswald factor and AR aspect ratio. At minimum C D/C L3/2, which relation holds?
- GATE 2022 AE Q56 – A conventional airplane of mass 5000 kg is doing a level turn of radius 1000 m at a constant speed of 100 m/s at sea level. Taking the acceleration…
- GATE 2023 AE Q17 – An ideal glider has C D=C D0+C Di with C Di=KC L2. For maximum range, the ratio C D0/C Di is
- GATE 2023 AE Q32 – An airplane weighing 40 kN lands on a horizontal runway and is retarded by an arresting cable of tension 100 kN, inclined 10° below horizontal. Engine…
- GATE 2023 AE Q40 – An airplane weighs 10 kN, has area 15 m², drag polar C D=0.025+0.05C L2, and flies level at density 0.60 kg/m³ with thrust 1 kN. Maximum cruise speed…
- GATE 2023 AE Q59 – An airplane with wing planform area of 20 m2 and weight 8 kN is flying straight and level with a speed of 100 m/s. The total drag coefficient is 0.026…
- GATE 2023 AE Q60 – The maximum permissible load factor and the maximum lift force coefficient for an airplane is 7 and 2, respectively. For a wing loading of 6500 N/m2…
- GATE 2026 AE Q31 – An aircraft starts gliding in power-off condition at an altitude of 4 km. Given that the maximum lift to drag ratio of the aircraft is 15, the maximum…
- GATE 2026 AE Q57 – W A and W B are the respective maximum take-off weights of an aircraft for two ambient air conditions given below. Condition A: p = 1 bar, T = 50\,oC;…
- GATE 2025 AE Q39 – A general aviation airplane is gliding with a speed V g at minimum glide angle. Which of the following statements is/are true?
- GATE 2025 AE Q52 – A jet-powered airplane is steadily climbing at a rate of 10 m/s. The air density is 0.8 kg/m3, and the thrust force is aligned with the flight path.…
- GATE 2025 AE Q54 – While taking off, the net external force acting on an airplane during the ground roll segment can be assumed to be constant. The airplane starts from…
- GATE 2024 AE Q20 – Which one of the following figures represents the drag polar of a general aviation aircraft?
- GATE 2024 AE Q28 – Which of the following statements about a general aviation aircraft, while operating at point Q in the V-n diagram, is/are true?
- GATE 2024 AE Q47 – Which of the following statements about absolute ceiling and service ceiling for a piston-propeller aircraft is/are correct?