"xerj" wrote

I don't mean opening the throttle to make up for the engine power loss. I
mean the fact that to maintain the same IAS you need more power as you go
up.

Why the preoccupation with IAS?

At around 6,000 feet, the power of a non turbo piston engine is around 75%.
As you go higher, the power drops off, but the true air speed goes up.

Who cares about IAS? The question was does it take more power to go faster,
right? Any non pilot will think faster means true airspeed, not indicated.
--
Jim in NC