Angular velocity with aircraft (equation help?)

[littlejim]

Homework Statement

A 2100lb airplane requires a power of 100 HP at the propeller to climb at an angle of 20 degrees to the horizontal at a constant speed. how much altitude could it gain in 10 minutes?

Homework Equations

that's actually what I need help on...i left my book at school and I don't have the equations on hand. Can someone point me in the right direction here firstly please? This doesn't seem that hard but I haven't a clue what equations i should be using.

The Attempt at a Solution

N/A (for now, sorry)

 

[ideasrule]

Try these equations:

P=Fv
Ep=mgh
Fg=mg