Originally Posted by Mike SF
I'm curious about using 230 for the Y6 and if this is actually possible. I have a Scarab Tricopter with 230mm booms. If I would mount a prop below the motor (as the Y6 would do), the prop would strike the landing leg. Especially the 2 rear legs would require at least 30mm more clearance. So a 260mm boom seems to me the minium you can physically do on a Y6.
When I was doing the initial testing on the prototype Y6 I was running roughly 260mm arms and it was all good. However, to reduce harmonics and for the sake of testing I reduced the arms down to 230 and it just got better - knew it as soon as I took off. What you need to do is cut the legs down so you get more clearance. It's a bit more work cutting and drilling new holes but worth it from my experience. Quinton also told me straight up that he found the shorter arms were much better.
It's really a personal call and if you get the results you are looking for on longer arms you should just do it. The only thing to remember is that all the info on the MWC site has come from extensive testing from quinton, me and the rest of the team. Id hate to know how many hours goes into each airframe but interestingly we all have very different flying styles and all seem to agree on similar numbers when it comes to physical construction.