Flight Performance and Planning Flashcards
7 cards from real CPL practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 Flight Performance and Planning flashcards as text
An aircraft's center of gravity (CG) is found to be aft of the aft limit. What is the primary concern?
Answer: Reduced longitudinal stability and possible loss of control
An aft CG reduces longitudinal static stability, making pitch control more difficult and potentially leading to an unrecoverable pitch-up.
When calculating takeoff performance, which condition results in the longest ground roll?
Answer: High elevation, high temperature, tailwind
High elevation and high temperature reduce air density, lowering engine thrust and aerodynamic lift, while a tailwind increases groundspeed at liftoff, all combining to produce the longest ground roll.
What is the definition of 'density altitude'?
Answer: Pressure altitude corrected for non-standard temperature
Density altitude is pressure altitude corrected for non-standard temperature, representing the air density the aircraft 'feels' for performance purposes.
Under FAR Part 91, what fuel reserve is required for a VFR day flight to a destination 200 nm away at an aircraft cruise fuel burn of 15 GPH?
Answer: Enough fuel to fly to destination plus 30 minutes at cruise
FAR 91.151 requires VFR day flights to carry enough fuel to reach the destination plus at least 30 minutes of flight at cruise speed.
A pilot uses a weight-and-balance chart and finds the loaded moment exceeds the maximum allowable moment. What action is required?
Answer: Redistribute or remove weight until within limits
If the loaded moment exceeds limits, weight must be redistributed or removed until both weight and CG are within the aircraft's approved envelope.
What effect does a wet or contaminated runway have on landing distance?
Answer: Significantly increases landing distance due to reduced braking effectiveness
A wet or contaminated runway significantly increases landing distance because braking effectiveness and tire friction are greatly reduced.
Which atmospheric condition causes the most significant reduction in aircraft climb performance?
Answer: High temperature and high elevation (high density altitude)
High temperature combined with high elevation produces a high density altitude, dramatically reducing engine power output and propeller/wing efficiency, severely limiting climb performance.