RCU Forums - View Single Post - Need help identifying this large scale engine
Old 04-10-2015 | 01:05 PM
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av8tor1977
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It is a Ryobi 31cc. (1.9 cubic inch) Prop will be something similar to an 18 x 6 or 18 x 8. Prop it to turn no more than 7500 rpms on the ground.

AV8TOR