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Old 03-17-2007, 01:09 AM
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Default RE: Cyclone 90 Questions

I initially thought of using a four-stroke engine with a soft mount but it would require relocating the thrust line. The bottom of the plywood motor plate is coincident to the plane's thrust line. For that reason I decided to use a hard mounted two-stroke engine.

The plywood used in the airplane reminds me of the plywood used in my Fliton Prodigy. That plywood is OK if it isn't stressed. If it is, it doesn't break; it shatters! I'll certainly add bracing to the Cyclone.

I really didn't want to do too much modification. I intended to use the plane as a test bed for a DX7. Several years ago there was an article in the AMA Newsletter about making a fixed gear installation indestructible. I tried it on a smaller model and it worked. It requires some effort. If the gear plate was strong enough for a grass runway environment, I would prefer to use the plane as it came.