Aircraft Design Practice Test 2

1. A/C with higher thrust to weight ratio can accelerate more quickly.

2. An A/C is cruising with thrust to weight of 0.9. If A/C is powered by prop engine then, find maximum lift to drag?

3. Why dorsal fins are used?

4. A twin turboprop engine is flying with 120m/s. Wing of the aircraft has span of 2m and lift co-efficient as 0.15 with aspect ratio as 9.2. Find the lift produced by the wing.

5. Glider with span of 2m is flying at 10000ft. If aspect ratio of tail is 10 then, determine reference area of the tail.

6. Location of aerodynamic centre for low speed airfoil is ____

7. Elevator provides control for ______

8. A thin airfoil is defined as NACA 0009 is at ɑ = 5°. What is the value of lift curve slope?

9. For an aircraft cruise aerodynamic efficiency is 10. Find the thrust loading at cruise.

10. A cambered airfoil is operating with 200N of lift. The velocity of the flow is 500m/s. Determine lift-induced drag by this camber airfoil.