well, its the standard graupner jet drive. The boat the drive was previously in, hit 25mph (on 7 cells), but the hull was far to small. Which made the boat heavy and vulnerable to waves. This hull should be perfect. As of now, I'm going to use the trinity motor, with no gear reduction, as this setup worked fine in the old boat. Recently I havent had much time to work on the project, however I have worked on the drive unit itself to smooth out the inlet better. I'll try to post some close up pics of all the parts soon, but just wanted to update.

I will consider buying a 700BB, at this point though, I just want it to run. The trinity motors originally were in the villian IV, it really moved, after blowing several props trying to run the boat on a river were debris often is, I looked into jet drives, built the small jet boat, I wanted to put the jet in the villian, but at the time just couldnt bring myself to taking out those nice arneson drives. It was also neat having a jet drive meant for a 30" boat in an 18" toy boat, but not practical......so here we go