Originally Posted by
awblain
Gouli,
I suggest that the hot-day density dependence reflects nothing more than the relatively marginal nature of helicopter flight. In exchange for those special capabilities, there is a compromise in the ability to carry great loads cheaply.
In practical Terms you are probably right.
In theory it will make a small difference.
Higher DA means lower IAS of the blade. This corresponds aerodynamically already to a lower RPM. AoA at the same RPM will be higher. Stall will occur at somewhat higher RPM.
Since we don't know to an exactness of 10% what that RPM is it won't matter much, though.