Lift Coefficient Questions
Good afternoon, I wonder if you could help me please, im trying to find some typical numbers for the following.
1.) By how much (i.e. 30% more etc) does the lift on takeoff generally exceed the weight of the aircraft. Also, when defining the maximum take off weight for an aircraft what is the regulation about providing more thrust than weight (i.e. the mtow is the weight at which the lift generated is a minimum of x% more than mtow, or something to that effect).
2.) What is the value of the coefficient of lift for say a 747-400, firstly with full flaps, then in the cruise (i.e. no flaps).
3.) Taking a 747-400 (please feel free to comment on other aircraft types also) if it lost all 4 engines, what would be its optimum rate of descent to acheive greatest distance of glide, obviously taking account of the speed required to land and not to stall.
Thanks for all your assistance, look forward to receiving some replies soon.
Regards
neorich2002