Downtroden lies. I saw him fly that .61 FX for 21 minutes, not 16--and he didn't look to be conserving nitro. I have had Twists with a .45 SuperTigre and a Saito 82 (which eats fuel, 11 min MAX flights on 11 oz standard Hangar 9 tank for the Twist). When I saw what Downtrodden's .61 Twist could do--fuel efficiency AND acrobatics, I ordered a new OS .61 for a NEW Twist, my 5th.

I put the battery BEHIND the rear wall of the canopy, receiver just in front of that. I paint the interior of the canopies, black, so you can't see the hole in the rear knock-out in the ply--wherein I put the battery, secured with a rubber band and a balsa stopper on top, under the canopy. The CG came out at 4.5 inches. A Dremel knocked a bit of the standard Hangar 9 mount down to where the .61 fits perfectly. You have to take about 3/8ths inch of the top side braces off, too. I just built it and it's ready to fly, on skiis. Maidens tomorrow.

Downtrodden uses the 13 x 5 prop. I'll start with a 12 x 6, for break-in, then try the 13 x 6, which I have on hand. Downtrodden's Twist has infinte and powerful vertical. I'm anxious to see what this Twist will do. The Saito 82a on my #4 Twist burnt out its bearings, for the SECOND time, and is at Horizon Hobby Service. Point is, I won't put it on the Twist again if the .61 proves as good as Downtroden's. That OS .61 FX rocks on the Twist.

Jack