Sorry. Are we talking about the Tower hobbies Fun 51 kit?

If so, the 46 is not too much. The Fun 51, and all the other fun flys have a thick fun fly type airfoil that slows down the plane a heck of a lot. I usually have to gas mine up a bit just to reach the runway.

One other consideration is, there are a lot of 40 sized planes out there. Almost all of them fly better with a 46 than a 40. One day
this plane will get crunched or just get worn out, and you will want to move the engine and radio to a new airframe.

If you really want a 40, buy one from me!! i got one just sitting in a box, and it is likely to stay there. All my 40 sized planes have 46's and 47's in them, (except for the one that has a Saito 100 ) (my personal favorite). Why fly the equivalent of a 1960's Volkswagen Bus, when for just a few bucks more you can be flying a Ferrari? Just because a Ferrari can do 200 Mph doesn't mean you are obligated to go that fast all the time.

Hmmm.. maybe i rant a little, but it sure is fun!

Dubro does make suitable plastic gear for this. They are pretty tough, and i think a little lighter. one of the guys i fly with has one with the dubro gear, his only complaint is the dubro ones bounce a bit more. over all, they are better, so i will probably put the dubro's on next time they get bent.

Good luck and have fun with your Fun 51 (or whatever it may be)!

Shmo