I love that description of rotorcraft. “Beating air into submission” now I’m just imagining muscle bound invisible arms coming out of the rotors smashing the air in the direction the helicopter is moving.This number has no relationship with reality(like this is range at cruise altitude). Actual attack helicopter combat op radius within combat zone can be 10 or more times lower. Helicopter, especially in combat, doesn't fly - it is a sort of thirsty super amphibious vehicle that beats air into submission.
This is why for helicopters armed with actual weapon loads being heavier is of such paramount importance - even if it comes at the expense of size and agility.
For many years, it became basically sort of theory v practice check - theory advices building smallest(and, importantly, narrowest) airframes possible. After going through any serious contested fighting - they start gaining weight.
Unlike many, China actually did some research before learning the hard way.
*Helicopter rotor to the free stream*: YOU MY B**** NOW! *smash**smash*
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