Take Off Flashcards
What is take off distance (TOD)
Ground roll + airborne section
What is take off run (TOR)
Ground roll
Break release until Vlof
What is the airborne section
Vlof until the screen height
What is Vlof
Speed at which the main wheels leave the ground
What is Vr
The speed at which the pilot begins to apply back pressure
What the take off run happens what happens to drag
Parasite drag increases
Drag indices increases
Wheel drag decreases
What is the formula for acceleration
(T - d) / w
If mass increases by 10% what happens to take off distance
Increases by 20%
What happens to take off distance if you use bleed air from the eng
Longer TOD
What is the formula to calculate the head/ tail wind component
Windspeed x cos angle
What is the formula for cross wind component
Windspeed x sin angle
What is the prerequisite for a contaminated runway
More than 25% of the runway is covered in a substance of more then 3mm thick
What does grass do to TOD compared to a solid surface
Increases
Is wet grass better or worse than normal grass in terms of TOD
Longer TOD run
What does flap do to climb ability
Reduces climb ability
How does wind affect the RLTOM OR CLTOM
Affects RLTOM
not
CLTOM
What angle does 5% gradient =
3°
What speed is best climb gradient achieved at
Jet = Vmd (4°)
Propeller = Vmp (<4°AOA)
What does altitude do to climb gradient
Decreases
What does altitude do to speed for best climb gradient
Jet = stays the same
Propeller = faster
What does mass do to climb gradient and Vx
Mass up
Climb gradient down
Vx up
How does dirty configuration affect climb gradient and Vx
Climb gradient down
Vx down
What happens to Vx and climb gradient for a jet with a engine failure
Both decrease
What happens to Vx and climb gradient for a propeller with an engine failure
Vx increases
Climb gradient decreases
Is climb angle affected by wind?
Nope it is air related gradient not ground related
Is flight path angle affected by wind
Yes ground related
What is OLTOM
Obstacle limited takeoff mass
How does a tailwind affect OLTOM
Decreases
How does headwind affect OLTOM
Increases
How does head/ tailwind affect climb angle
No effect
What does acceleration do to climb angle
Any acceleration will reduce climb angle
What happens to rate of climb if TAS doubles
Double ROC
What happens to rate of climb if you double the angle
Double ROC
What is the rate of climb formula
ROC = Pa - Pr / w
What is the point of maximum excess power for a jet
Vy
Tangent to the drag curve
<4°AOA
> Vx
1.32 Vmd
What is the point of maximum excess power for a propeller
Vy
Vmd
Tangent to power required curve
What happens to rate of climb and Vy when mass increases
ROC decreases
Vy increases
What is the absolute ceiling
Where Vx and Vy are the same speed
What is the service ceiling
Jet = altitude where there is a min ROC of 500 fpm
Propeller = altitude where there is a min ROC of 100fpm
What happens to the change over alt with a higher Mach number
Higher change over altitude
What happens to change over altitude with a higher CAS
Lower change over altitude
What is Vx for a prop
Vmp
> 4° AOA
What is Vy for a prop
Vmd
4°AOA
What is Vx for a jet
Vmd
4° AOA
What is Vy for a jet
1.32 Vmd
<4°AOA
