Helicopter Project

[seanwitte]

Originally Posted by KenWittlief

I dont think it is limited to the ground effect altitude.

I found this on a website - it appears to be a run-away sort of thing, once it starts to happen you cannot lift out of it, unless you move forward out of the ring of airflow:

I haven't seen it with the model helis, but with a fixed-pitch model you have little or no control when dropping altitude because the blades aren't spinning fast enough to maintain cyclic authority. If you hover at about 20' then try to land the tail will drop and the cyclic turns to mush. You'd have to be pretty good to drop straight down.