ORIGINAL: downunder
ORIGINAL: longdan
Does hovering in one spot produce more exhaust than when moving?
No, same amount but it's not getting left behind so it looks like a lot. A couple of times when running an engine on the test stand I've plugged a radiator hose with a 90 degree bend over the muffler to get the exhaust out of the prop slip stream and it's amazing how much smoke there is.