Tiktock: Unfortunately I don't have a spare Saito .91 - and I'm "fighting the urge" to buy yet another engine. Having said this I only recently bought both a .72 and a 100 Saito. The 100 will go in my Funtana 40S for sure, and I just want to establish which of my "spare" engines will give me the best performance in the Mojo. XJet: I hear what you're saying on vibration issues - I must admit to having wondered about this myself

No doubt that by the time I get my workshop back I'll have come to the right decision - with all your help

Right now it seems to me that the TT .46 will be fine (I'm right in thinking that it will go vertical "easily" from a stationary prop-hang situation?), and if I find that I'd like more power then the Irvine would be an easy up-grade. I think that's the way I'll probably go with my Mojo. In which case the Mojo will be the only one of my models powered by a 2-stroke engine!

I'm waiting on delivery of a H9 Twist right now so the Saito .72 will go into that one - and it'll probably get into the air long before I get the Mojo built! Such is (my) life, I always seem to have to wait far too long for the "really good" things

Tony