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astro2cosmos
Dec18-10, 08:20 AM
can anyone help me out to calculate the thrust when helicopter takes off with mass of fuel?
russ_watters
Dec18-10, 08:34 AM
Calculate how? From what starting information? The minimum thrust required at takeoff is the weight of the helicopter.
astro2cosmos
Dec19-10, 08:51 AM
Calculate how? From what starting information? The minimum thrust required at takeoff is the weight of the helicopter.

i want to know how to calculate if mass of fuel is given?????
JaredJames
Dec19-10, 09:25 AM
Fuel use will be determined by the engine.

If you know the HP required for take off, you can work the fuel use from that.
russ_watters
Dec19-10, 10:56 AM
i want to know how to calculate if mass of fuel is given?????
Mass of fuel (unless you mean use rate) is not a piece of information that is useful in determining the thrust of a helicopter.
JaredJames
Dec19-10, 12:23 PM
Oh I see, he knows how much fuel is used and wants to work out thrust from that.

I agree with you russ, I thought he meant how much fuel is used during take off.