SMACFUM CHANGES

Question 1

Standard day at sea level
1. What happens if changed?
2. What is better?
3. What is worse?

Answer 1

1. Higher Altitude/Temp (Non-standard) reduces engine power.
2. Better- High Density Altitude (less power = less yaw).
3. Worse- Standard Day/Sea Level (max power = max yaw).

Question 2

Max power on the operating engine
1. What happens if changed?
2. What is better?
3. What is worse?

Answer 2

1. changed- Lower Power reduces asymmetric thrust.
2. Better- Reduced power on operating engine.
3. Worse- Max Takeoff Power.

Question 3

AFT CG
1. What happens if changed?
2. What is better?
3. What is worse?

Answer 3

1. Changed- Forward CG makes the plane more stable.
2. Better- Forward CG (longer rudder arm).
3. Worse- Aft CG (shorter rudder arm/less leverage).

Question 4

Critical engine windmilling
1. What happens if changed?
2. What is better?
3. What is worse?

Answer 4

1. Changed- Feathering the propeller removes drag.
2. Better- Feathered prop (less drag).
3. Worse- Windmilling prop (high drag).

Question 5

Flaps up gear up
1. What happens if changed?
2. What is better?
3. What is worse?

Answer 5

1. Changed- Lowering gear/flaps provides keel effect stability.
2. Better- Flaps/Gear DOWN.
3. Worse- Flaps/Gear UP (clean).

Question 6

Up to 5 degrees of bank
1. What happens if changed?
2. What is better?
3. What is worse?

Answer 6

1. Changed- Zero or wrong-way bank increases sideslip.
2. Better- Up to 5° bank into good engine.
3. Worse- Wings level or bank into dead engine.

Question 7

Most unfavorable weight
1. What happens if changed?
2. What is better?
3. What is worse?

Answer 7

1. Changed- A heavier aircraft has more inertia to resist yaw.
2. Better- Heavy Weight.
3. Worse- Light Weight.