Straight and Level Flashcards
How to remember the usual design of thrust-drag couple being nose-up?
If engine fails (thrust is lost), the aircraft will pitch nose-down
In aerodynamics, TAS determines the…
Distance travelled through the air
In aerodynamics, IAS determines the…
Aerodynamic effects
Formula for practical relationship of forces in straight and level flight
Power + Attitude = Performance
On a drag (or thrust required) curve, high thrust is required at which points on the graph?
At low speeds (and high AoA) and high speeds (and low AoA)
Maximum endurance speed is
The TAS where power is minimum
Maximum range speed is
The TAS at which drag is least and L/D ratio is greatest
Maximum endurance speed can be thought of as the speed where what practical measurement is lowest?
Fuel flow
TAS at which power (and fuel flow) is minimum is?
Maximum endurance speed
Maximum range speed is concerned with what whilst max endurance speed is concerned with what?
Greatest Lift/Drag Ratio
Lowest Power
What is speed stable?
A higher speed range where minor speed fluctuations are corrected without pilot input
A higher speed range where minor speed fluctuations are corrected without pilot input is known as?
Speed stable
If speed stable, an increase of airspeed will mean…
Total drag will increase (due to parasite drag)
Drag increase not balanced by constant thrust
Aircraft slows down
If speed stable, a decrease of airspeed will mean…
Total drag will decrease (due to parasite drag decrease)
Thrust exceeds drag
Aircraft speeds up
The lower and higher speed range is normally divided by what?
Minimum drag speed
