Just a general query that's bugging me...How do you go about choosing flap settings for example in a 767/757? (
). I noticed that most airlines use a default flap setting of 5 in the 767, but BA (being unique as they are) use 15...why? I also noticed a lot of operators use flap 15 for default in the 757...howcome 15 instead of 5? What are the deciding factors?
Thanks
obk