Aerodynamics

Question 1

V speeds

Answer 1

Vso 45kts — stalling speed in landing configuration (+flaps)

Vs1 50kts — stalling speed in specified configuration

Vr 60kts — rotation speed

Vy 76kts — best rate of climb

Vx 64kts — best angle of climb

Vg 76kts — best glide speed

Vfe 102kts — flap extension speed

Vno 125kts — max structural cruising speed

Vne 154kts — never exceed speed

Va 89-113kts — design maneuvering speed

Question 2

Name the types of stability

Answer 2

1. Lateral stability
2. Longitudinal stability
3. Vertical stability
4. Positive stability
5. Neutral stability
6. Negative stability
7. Static stability
8. Dynamic stability

Question 3

What is Lateral Stability?

Answer 3

Resistance to roll
Wing dihedral is what gives our aircraft lateral stability. The soft V-shape leaks gnat during a slide slip, the lower wing has a greater angle of attack and this helped it return to equilibrium.
The ability of the aircraft to maintain wings-level equilibrium in the roll sense

Question 4

What is Longitudinal Stability?

Answer 4

Resistance to pitch.

Aircrafts stability about the longitudinal axis. CG must be within limits to maintain

Question 5

What is Vertical Stability?

Answer 5

Resistance to yaw
Your size of the vertical stabilizer and the area of the fuselage aft of the CG contribute to vertical stability. The bigger and farther aft the stabilizer is, the greater stability

Question 6

What is Positive Stability?

Answer 6

The tendency to return to equilibrium

Question 7

What is Neutral stability?

Answer 7

The tendency to stay in new position

Question 8

What is Negative Stability?

Answer 8

The tendency to continue to move away from equilibrium

Question 9

What is Static Stability?

Answer 9

Initial tendency

Question 10

What is Dynamic Stability?

Answer 10

Response over time