DADE Aircraft Performance & Limitations 5

Question 1

What is the primary purpose of the 'climb-limited' maximum takeoff weight analysis?

Accepted Answer

To ensure the aircraft can meet minimum climb gradient requirements with the critical engine inoperative

Answer

Climb-limited MTOW ensures that if the critical engine fails at V1, the aircraft can still meet the minimum climb gradient requirements for each segment of the takeoff flight path.

Question 2

Under 14 CFR Part 121.631, a dispatcher may not release a flight unless the planned fuel is sufficient for which of the following minimums?

Accepted Answer

Destination plus all required alternates plus reserve as specified in the operations specifications

Answer

14 CFR 121.631 requires the dispatcher to ensure fuel sufficient to fly to the destination, all required alternates, and hold for the reserve fuel specified in the carrier's operations specifications.

Question 3

How does runway slope affect takeoff performance?

Accepted Answer

An uphill slope increases ground roll because it reduces acceleration and increases distance needed to reach V1

Answer

An uphill runway slope works against the aircraft's acceleration, increasing the distance required to reach V1 and liftoff speed, while a downhill slope reduces the required field length.

Question 4

When dispatching over mountainous terrain, which regulation requires operators to ensure the aircraft can sustain flight above the terrain with the critical engine inoperative?

Accepted Answer

14 CFR 121.193

Answer

14 CFR 121.193 addresses en route limitations for turbine-powered aircraft specifically over mountainous terrain, ensuring OEI performance permits safe passage or a diversion.

Question 5

What is the effect of CG (center of gravity) position on aircraft performance, and why does it matter for dispatch?

Accepted Answer

Forward CG increases drag slightly but improves stall characteristics; aft CG reduces drag but may approach stability limits affecting V-speeds

Answer

Forward CG increases induced drag due to higher stabilizer download but improves pitch stability, while aft CG reduces drag and improves fuel burn but can approach stability limits that affect V-speed calculations and handling margins.

(DADE) Designated Aircraft Dispatch Examiner Practice Test

(DADE) Designated Aircraft Dispatch Examiner Practice Test

DADE Aircraft Performance & Limitations 5