Quote:
Originally Posted by redpoint5
This has been discussed before in other threads. As pointed out, lower density air will increase engine efficiency by reducing throttling losses, and it will improve aerodynamic losses. Warm air has a similar effect as reducing density.
Another factor that will increase FE is humidity, with higher humidity further reducing density and aerodynamic drag.
|
How does higher humidity reduce drag?
100% humidity is less drag than 10%?
Atmospheric pressure is 50% at 18k feet of what it is at sea level under otherwise identical conditions.
regards
mech