Flipping Airflow on a Twin Engine Airplane
This was posted on an earlier blog:
“I have a “Micro Flayer” Jet, remote twin engine airplane. This is a jet with the engines mounted on the back of the wings aft and near the tip, one motor on each wing. when I operate it one motor provides fwd air motion and the other provides aft air motion? they are working against each other, I am not sure what is wrong. It will not fly. I pulled off the prop and turned in around on the motor blowing fwd it did nothing , air still pushing fwd?
this is baffling. Any ideas on what is wrong? Is it the prop, the controller, the wiring, circuit board?”
First, I’d suggest trying to return this product where you purchased it and get another one. Sounds like there might have been a glitch in the particular plane. If that’s not feasible, here’s a simple way of fixing this as long as you can do a little soldering. Take the engine in question pushing air the wrong way and see if you can get to the wires to that engine. Might require removing a couple of screws but nothing too difficult. After you have the wires exposed to the back of the motor carefully unsolder the two wires and switch them around and solder them back on. This should fix the reversed airflow problem.
Anyone else have other suggestions?