I think I'm understanding Hitech's point of view.
Lets look closely at Power - from a website I like on aircraft performane:
The above diagram of power makes it clear how thrust and engine shaft velocity combine to represent the power required to move our aircraft in Aces High. How does this relate to the rpm gauges in aircraft or the manifold pressure and rpm gauges in a piston aircraft? The RPM change does have an impact as does engine torque. They all relate to Shaft Horsepower (SHP) - more on that in a bit.
To set power on an any aircraft in Aces High, the pilot can adjust the throttle (fuel flow) and and engine rpm. Let's use the Dora's maximum torque is 3620 ft lb and a maximum propeller rpm of 3250(WEP on).
Based on the definition of power:
P = F x V [force times velocity]
The easiest way to visualize the calculation is to imagine the engine winding up a weight by rotating a pulley attached to it's output shaft. The velocity of the rising weight would equal 2 x pi x r x rpm, where r is the radius of the pulley.
But torque equals W x r, where W is the weight and r is the diameter of the engine pulley again. (The greater r is the less the weight, but the torque would not change.)
P = W x 2 x pi x r x rpm (units must be consistent)
which is the same as saying:
P = torque x 2 x pi x rpm
Finally we add the unit conversion factor and the equation becomes:
SHP = torque x 2 x pi x rpm / 33,000 (torque is ft lb and SHP is horsepower.)
SHP = 3620 x 2 x 3.14 x 3250 / 33,000 = 2240 SHPThe maximum power is 2239 SHP and this occurs at an rpm 3250 and 3620 ft lb or torque.
If we use my suggested RPM of 3000, and the new engine torque of 3921, the SHP actually doesn't change.
SHP = 3921 x 2 x 3.14 x 3000 / 33,000 = 2240 SHP. Shaft Horsepower reminds us that the power was measured on the output shaft of the engine. The same calculation can be used for most aircraft in Aces High, but we don't have torque gauges for us to refer to.
Ok HT, I understand your point of view. If we did increase the engine torque, it would actually increase the SHP of the engine - which is something we don't want. I'll keep quiet and in my corner like a good boy.