Weed eater/whacker engine conversion to 1/4 scale piper cub.

[Matthewdupreez]

If you have not done this already, I would advise you to operate the chainsaw engine as a chainsaw for about 25 hours before you decide to put a prop on one.

No chance I'm using a chair saw... They're wayyyy heavier than the weed whacher engines....
And way more expensive.