RCU Forums - View Single Post - First Plane - Almost ready to go - Give pointers?
Old 03-14-2007 | 01:00 PM
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bigedmustafa
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Default RE: First Plane - Almost ready to go - Give pointers?

One thing you'll want to watch for, soop7667, is upthrust from the engine. You mentioned that the trainer took off much more quickly than you expected, and this occassionally happens with trainer aircraft.

You want the plane trimmed out so that it will fly fairly level at all speeds. If the plane flies level at 1/4 or 1/3 throttle but it automatically starts climbing upward once the throttle is advanced, that is often due to upthrust in the engine mount. If that's the case, it's easy enough to fix by putting a couple of nylon washers behind the engine mount at the top two motor mount bolts. This "shims" the engine mount and angles it downward just enough to remove the upthrust and allow the trainer to fly level while under power.

I recently posted about my maiden flight with my Tower Trainer .40 MkII. I had an upthrust issue with the plane and the thing took off almost vertically.

I don't know if you have this problem with your Solo Sport or not. It's just something to keep an eye on when you're flying it.