Section 18 - Performance Flashcards
What information can be determined by using the Twin Engine Flight Planning charts in the QRH {Section PB)?
Flight time, cruise altitude and trip fuel required
When landing with less than full flaps, where can the appropriate VREF speed be obtained?
On the FLT REF page of the display controller or in the landing speed schedule table, Performance Handbook
What is the definition of accelerate-go distance in the GIV?
The required distance to accelerate with both engines operating to the critical engine failure speed, sustain an engine failure, and continue the takeoff to a height of 35 feet AGL on a dry runway or 15 feet AGL on a wet runway
What is the definition of accelerate-stop distance in the GIV?
The required distance to accelerate with both engines operating to the critical engine failure speed (V1), initiate actions to abort the takeoff, and come to a complete stop
What is reference accelerate-go distance in the GIV?
The available distance obtained by correcting actual runway length for effects of clearway, slope, wind, anti-icing and runway conditions
What is reference accelerate-stop distance in the GIV?
The distance obtained by correcting the accelerate-stop distance available for the effects of slope, wind, anti-icing, ground spoilers, and anti-skid operation (G550 adds ECS bleeds to the calculations)
What is takeoff decision speed in the GIV {V1)?
The speed from which a decision to continue the takeoff results in a takeoff distance that will not exceed the available accelerate-go distance, or from which a decision to bring the airplane to a full stop will not exceed the accelerate-stop distance available. In the event of an engine failure, this speed takes into account the pilot reaction time of 2.0 seconds, including the pilot’s first action after recognizing the engine failure. For an all-engine rejected takeoff, this is the speed at which the pilot performs the first action to abort
When is a runway considered wet?
When it is well soaked but without significant areas of standing water. A runway is considered well soaked when there is sufficient moisture on the runway surface to cause it to appear reflective. Runways which are damp with moisture present but not reflective are considered dry
What is considered a contaminated runway?
When 25% or more of the surface is covered by surface water at least 0.125 inches deep, or by slush or loose snow equivalent to 0.125 inches of water
What are some limitations associated with the use of FLEX power?
- No tailwind or downhill slope
- Use of wing anti-ice is not approved
- Anti-skid system must be operative
- Ground spoiler must be operative when using flaps 10° for takeoff
- On wet runways, thrust reversers must be operative
- All rated EPR limitations must be observed
- FLEX power settings must not be less than rated EPR levels provided in the FLEX tables
- Both engines must be capable of developing rated takeoff EPR
- At least one rated EPR takeoff must be performed every 100 flights or 100 flight hours, which ever occurs first
What is V1 MIN?
The lowest usable V1 speed resulting in the shortest accelerate stop distance but longest accelerate go distance ( cannot be less than VMcG)
What is V 1 MAX?
The highest usable V1 resulting in the shortest accelerate go distance but longest accelerate stop distance ( cannot be greater than VR)
What is rotation speed (VR)?
Rotation speed is the speed at which rotation to the takeoff attitude is initiated. Performance data is based on 75 lbs of pull force within 1 second
What is V2 speed?
V2 takeoff safety speed is the target to be attained at the 35 foot height following an engine failure. If an engine failure should occur after passing V2 on takeoff, it is recommended that the speed at the time of the engine failure be maintained (up to V2+ 10 knots)
What is Vse enroute climb speed?
VsE is the recommended airspeed for single-engine climb in the en-route (clean) configuration
