I have a line on a Eager Beaver III-SX string trimmer. It's has a 21.2 cc McCulloch engine, which I'd like to put on my Vectorflight Extra 300s, the one with the 66 inch wingspan. I believe it will be about an 8 pound plane when assembled. While the firewall is big enough for this engine, the plane instructions call for a .60 - .90 2 stroke engine. The 21.2 is around 1.25 cu. in., which sounds like fun.

A few questions:

1. Is this a decent engine for conversion?

2. It has Walbro carb, which I suspect is a good thing, yes?

3. Your thoughts on this size for a sports/aerobatic plane which calls for a .60 - .90 2 stroke.

This would be my first conversion, but I'm mechanically inclined and do my own automotive work, including a full rebuild, so I have decent skills and tools. The engine pulls smoothly, but does not currently start. It also has 5 year old gas in it.

Thanks in advance for your help and suggestions.

Jack


I found the engine size here http://books.google.com/books?id=VFV...sult#PPA146,M1