It's a good engine. The 36 to 42cc Poulans are basically identical and weigh the same, so I would buy the 42cc. Do a search here in the forum for Poulan 42cc and you should come up with quite a bit of info.

The Poulan 46cc is a different design, and I'm told it is a good bit lighter. The only problem with the 46cc Poulan is that it has a rubber boot mounted carburetor. You have to fabricate a manifold for it to work in an airplane, but a lot of guys use them. Check with CH Ignitions, as they used to have conversion parts for the Poulans. www.ch-ignitions.com

Just remember, if the weight and the dollars are going to be similar, you might as well get the biggest engine.

AV8TOR