Perf Flashcards
Class B AEO Gross to Net Obstacle Clearance distance
x 1.3
Jet Max Range (VMR) =
VMR = 1.32 x VMD
Class B Take-off FLL Regulatory Factors - TORA/ASDA/TODA
TORA 1.0 ASDA 1.3 TODA 1.15
Gradient of climb knowing Rate of Climb and TAS
Gradient (%) = ROC x 6000
TAS x 6080
What needs to be checked for Quick Turnaround Limits?
OAT
Flaps
Runway Slope
Wind component
Pressure Altitude
See 4.30 in CAP
Specific (Air) Range?
Specific Air Range = TAS / Fuel Flow
Class B / Turbo-Prop Landing Distance Safety Factor
Most stop in 70% of LDA
Class A Jet Aircraft Landing Distance Safety Factor
Most stop in 60% of LDA
Safety factor landing on wet or contaminated runway
15% (x1.15)
VREF Class A and Class B
Class A
VREF = 1.23 VSR0
Class B
VREF = 1.30 VS0
Long-Range Cruise LRC Speed is selected because…
It achieves 99% of maximum still-air range with 4% higher speed
Aerodynamic Ceiling is _______
VY = VMD = VX
ROC = 0
Service ceiling is ______
Rate of climb falls to determined level - 100ft/min PROP - Jet - Specific ROC achieved?!
Typical Clean VMD value vs. Vs
Jet = 1.6VS
Prop = 1.3VS
Jet and Prop Maximum Range Speed is
Jet Max Range Speed = 1.32 VMD
Prop Max Range Speed = VMD
Clearway min width and max slope, controlled by
Max semi-width 75m
Max upward slope 1.25%
Controlled by airport authority
Balanced Field is when…
Balanced Field
TODA = ASDA
However, Balanced Field Takeoff
OEI TODR = OEI ASDR
Screen Height (Class A and B) Wet Runway
Class A - 15ft
Class B - 50ft
Runway Upslope effect on ASDR
Increases
(Gradient much greater effect on acceleration than braking)
Class B - No stopway/clearway - TODR safety factor relating to TORA
TODR x1.25 must not exceed TORA
Take-off Class B - Factor for Paved Wet
x1.0
Take-off Class B - Factor for Grass Wet
x1.3
Take-off Class B - Factor for Grass Dry
x1.2
Max TODA compared to TORA
Max TODA is 1.5x TORA
(EU OPS Limit)
VX for Prop
1.1VS