Performance And Flight Planning Flashcards
(55 cards)
Basic splitting up of weight
Basic empty mass
Variable load
Traffic load
Fuel load
What makes up dry operating mass
BEM and variable load
What makes up useful load
Traffic and fuel load
What makes up operating mass
BEM, variable and fuel
ZFM is made up of what
BEM, Variable, Traffic
Where to have C of G for max range
Aft
What is the TORA
Useable length of paved runway available for take off
TORR
Length needed to unstick at Vr plus 1/3 airborne distance between unstick and screen height
TODA
Length of useable runway + clear way that an a/c can use to achieve V2 (TOSS)
What can TODA not exceed
1.5 x TORA
TODR
Distance needed to accelerate to Vr and attain screen height, not less than V2
Screen height normal and wet
35ft, wet is 15ft
ASDA
The distance available that an aircraft can use to stop if take off rejected with critical failure at V1
On a balanced field (TODR with one engine = ASDA), where is screen height achieved
End of runway
Why is screen height for wet reduced
As portion of airborne distance is now on the runway due to longer TORR
What happens if V1 is greater than Vmbe
TOW needs to be reduced
Why does aft c of g mean higher VMCG/A
Due to a shorter moment arm with the tail, meaning more airspeed needed
What is V2 numerically greater than
1.2vs or 1.1 Vmca
7 variables affecting TO and landing perf
- Weight
- Flap setting
- Aerodrome pressure alt (low better)
- Air density
- Humidity
- Wind
- Length, slope, surface
High pressure alt on perf
Less performance due to less air molecules
Decreasing air density (high pressure alt) on performance
Lower performance, Increase in take off distance required
No take off on wet runway when
Anti skid inop
Standing water over a certain depth
Any other type specific limits
First departure segment
Screen height 35ft to gear retraction at V2, positive Roc min 200ft OEI
2nd departure segment
Gear retraction to alt between 400ft and max 1000ft agl, at V2, 2.4% gradient
