Aircraft Performance & Limitations Flashcards
7 cards from real DADE practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 Aircraft Performance & Limitations flashcards as text
What is the effect of a wet or contaminated runway on aircraft accelerate-stop distance?
Answer: It significantly increases stopping distance due to reduced braking effectiveness
A wet or contaminated runway reduces tire-to-runway friction, significantly increasing accelerate-stop distance and must be accounted for in dispatch performance calculations.
When computing climb-limited takeoff weight, which condition results in the most restrictive climb gradient requirement?
Answer: Second segment climb with one engine inoperative
The second segment climb (gear up, flaps in takeoff position, one engine inoperative) typically produces the most restrictive climb gradient requirement of 2.4% for three-engine aircraft and 2.7% for two-engine aircraft.
How does a tailwind affect takeoff performance?
Answer: It increases both ground roll and total distance to clear a 35-foot obstacle
A tailwind increases takeoff ground roll and total distance to clear obstacles because the aircraft must accelerate to a higher groundspeed to achieve the required airspeed.
Under 14 CFR Part 121, what is the maximum allowable tailwind component that may be used for performance planning unless the AFM specifies otherwise?
Answer: 10 knots
14 CFR Part 121.195 limits the tailwind component used in performance planning to 10 knots unless the AFM provides data for higher tailwind components.
What does the term 'balanced field length' mean in aircraft performance?
Answer: The runway length where accelerate-go and accelerate-stop distances are equal
Balanced field length is the runway length at which the accelerate-go distance and the accelerate-stop distance from the same V1 are equal, optimizing the critical engine failure speed.
Which factor does NOT affect an aircraft's maximum certificated landing weight?
Answer: Fuel load at departure
Maximum certificated landing weight is determined by structural, brake energy, and tire limitations established during certification; the fuel load at departure is not a factor in the structural limit itself.
What is the purpose of the 'net takeoff flight path' used in obstacle clearance analysis?
Answer: It is the gross flight path reduced by a specific gradient to provide a margin of safety
The net takeoff flight path is the gross flight path reduced by 0.8% for two-engine, 0.9% for three-engine, and 1.0% for four-engine aircraft to provide a margin of safety over obstacles.