Vertical climbing tank/rover
EXACTLY what crossed my mind! However, since there will indeed be air moving past the engine (albeit the opposite direction), there will be a bit of a cooling effect, tho probably/certainly not as much. BUT since the extent of operation should never exceed 5 minutes (depending on height/structure of the tree, etc), hopefully overheating will not be an issue. Mucho thanx for your input. Before I go ordering anything at all, I've gotta find out roughly (exactly?) what engine should be used in conjunction w/my 5" x 3.5 pitch tri-prop
to deliver maximum thrust. Not being an avid RC'er, I'm fairly ignorant on engines/power & rpm. But being fairly educated in airboat specs concerning prop length, pitch & rpm, I DO know that after a certain rpm, the efficiency/thrust decreases. If anyone out there can tell me what the perfect engine for this specified prop might be and what it's approximate thrust might be, I WILL begin rolling the dice soon. (Only one way to find out, eh?... or is there already someone out there who's tried this?)
Cordially, Ralph Ivey