Yep, that's one of Cunnighams converions and it is sweet. The plane is a little heavier with it but not by much. I replaced the stock gear with the graphtec CF gear and save almost 8oz. I'll get you an AUW but I ran the numbers on the following thread and they should be right around 12lbs. It does great but not umlimited vertical which is fine by me. 3D is defintely out for this combo but again this plane is being built this way for IMAC and nothing else.

http://www.rcuniverse.com/forum/m_25...tm.htm#2558391 post 13 has the planes weight and post 29 has the weight for the engine and accessories

It does need to land somehwat hot but nothing I cannot handle and if the throws are to high and it will snap out. I have a feeling though that is my trim as I really have not trimmed this plane yet. I may have more movement on the right elevator than left because it always snaps out to the right. Also all of my throws are at least 40 degrees so it just may be too much.

If I go to low (50%) or mid (75%) then it does not snap but still drops the right wing. Lateral balance is fine.

Basically my plane is this

8lbs 11oz without the engine
Engine 2lbs 9.5oz without the backplate
Abellrc Muffler (not the Pitts): 4.7oz with the bolts
and remove 8oz for the gear replacement

So without the gear change the plane weighed 10lbs 26oz or 11lbs 10oz

now subtract 8oz for the gear replacement and you now have 11lbs 2oz plus add 2.0oz for the choke servo and control rod and the 4.5oz for the ignition batt (JR1100MaH) for an AUW dry of 11lbs 8.5oz

Not to bad...

I originally had an OS120 w/pump on it and needed 6oz on the nose to balance on the recommended point. I figured that the converted Zenoah would just about work perfectly which it did and was able to remove the 6oz. The gear change was an after thought and I am considering going to a CF wing tube to save a little more