EGCC4284
14th Mar 2005, 22:38
Factoring for take off safety factor in a twin during CPL test if using unfactored data.
Is it 1.25 or 1.33
Keygrip
15th Mar 2005, 12:58
This is a very common question on here, EGCC - and the simple and correct answer is a very unhelpfull, "YES".
It IS 1.25 or 1.33.
The follow on question would be "Well, which one is it?"
The answer to that is in the "Operations Manual" that has been written by the flying school that you are attending.
The 1.33 was a UK law mandated figure that must be used by holders of an Air Operators Certificate. However, when JAA came along they (the JAA) mandated the figures of 1.25. This meant that any UK operator complying with JAA was in breach of the AOC (as the factoring shortened the runway lengths required).
So, the nice people at the CAA issued operators with a letter of exemption from that part of the AOC in order for the operators to comply with JAA.
FLIGHT SCHOOLS were told, "You choose for yourself - use one or the other."
The only way to know is to look in the school manual and see what figues they give in there.