ORIGINAL: Brickhead
I am sorry. I meant what do you think of a Saito.82 with the 13x8 APC propeller? I see someone put a Saito .82 in an Oxaly.
I havn't started building mine yet. Still thinking about rebuilding the Oxalys 50.
Saito 82 will have more than enough power except the fuel tank location. I personally have not ran the Saito 82, but it does have more power.
You will have to install the battery behind the wing in the fuse at least a few inches back.
Since Saito 82 does not have pressurized fuel system, you may want to use a perry VP30 pump for CG located fuel tank.
The fuel tank may be a little small (not sure what size it is in the Osmose, but the Oxalys had 260 oz).
For a 10 minutes flying, it may be plenty with good throttle management.
IP