Turboshaft Fuel Flow/Altitude
I flew the things in helicopters for many a year but have no idea of the correct answer, perhaps should have paid more attention.
Question. As you climb with a fixed torque setting (constant horsepower) does the fuel flow (a) increase (b) decrease (c) remain the same. And of course the inevitable "why". Obviously the N1 increases as does the EGT. Searched the web without a direct answer and an authoritive link would help.
Thanks in advance.
PS Good to see you back Old Smokey, you've been missed. Did the leash leave any marks?