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There are quads that can do 200+mph these days, only a matter of time before they’re cheap enough to be used to hunt down the helis.
Doubtful they can do that at the same altitudes as a helicopter though
while carrying a payload
Yeah but they’re much more vulnerable to SAMs at altitude.
Doesn't it get easier to fly fast high up? It does for planes.
It does, but it gets progressivelly harder as it goes up to maintain enough vertical airflow for a rotary-wing craft to stay up because the air becomes thinner.
The going faster for fixed wing craft compensates for the air being thinner because the Bernouli Effect (the sustentation effect from the wings) gets stronger the faster the airflow over the wings is, but the equivalent of that for a rotary wing craft is for the paddles themselves to rotate faster and the craft itself going faster doesn't help (it makes air over some paddles go faster but also makes the air over the paddles going in the opposite direction go slower).
Quadcopters are rotary-wing craft, so can't really improve the altitude they can reach by going faster.
Ah. So it's less that they're slow at altitude, and more that they may not be able to reach it in the first place.
It does for space craft too. At least thats what No Mans Sky has taught me! Gotta turn on the thrusters!!!