Intro Facts Flashcards
Class A a/c
Any multi engine jet or turbo prop that has a MTOM greater than 5,700kg
And/or
More than 9 PAX seats.
Under CS25
Class B
All propeller driven a/c with a MTOM of less than 5,700kg
And/or
9 or less seats
CS23
CS 25
For big a/c
More stringent safety factors
Measured performance
Average performance for the new a/c flown by test pilots
Gross performance
Average performance for the new a/c flow by line pilots using standard techniques
Shallower descent
Net performance
Performance used to determine the safety related performance limited masses
Gross performance diminished by the safety factor
Largest l/d distance
Phase of flight with the biggest safety margins
L/d
When to introduce a safety factor
When the probiotic of events is more than 1 in a million
Larger the probability, larger the safety factor
TORA
T/o runway available
Useable part of the runway
Piano keys to piano keys
Stopway
Area at the end of the r/y after the TORA which is the overrun area
Must be able to support the weight of the a/c
Not available for l/d but used for rejected t/o
Same width as the r/y
Clearway
Area at the end of the r/y which may be used at the end of the TORA which is free from any obstacles that could cause damage
Either 1.5 x TORA ( 50 of the TORA) or to the first non frangible object
Inclined at 1.25% and no obstacles can protrude above it by 0.9m
75m(500ft) from r/y centre line
ASDA
Accelerated stop distance available
TORA + Stopway
TODA
T/o distance available
1.5 x TORA
PCN
Pavement classification number
How good the pavement is at holding the a/c
5 parts of a PCN
1 - A number representing the ACN 2 - F or R ( Flexible or rough) 3 - type of ground 4 - max tyre pressure allowed 5 - U or T (usage or technical evaluation)
