All great advice from ProBros above. I'd swear you must be a sponsored accel pilot TailTwister!

Here's the skinny on the OMP bipe. It's much more stable than most bipes as that's pretty much my standard for designs and it shows in the rest of my designs. Don't judge inverted harriers by the OMP video, I can hardly do them at all and was struggling just to do that! That's something I'm going to work on this year though. I will say the bipe is pretty easy to build as described above with the conventional foam core fuse we are now known for and the rest is laser cut parts for the most part. But...........Razorback pretty much hits the nail in that you should really first decide your skill and requirements for a plane and then choose from there.

Bottomline is if you are NEW to 3d then go for a good 3d profile trainer. There are several good ones out there from OMP, Swanny, and Morris. Once you get past the initial 3d stage then step up to something more wild like a Yak 54, bipe, or Katana any size.

Oh, and the OMP bipe is 6.25 lbs and targets a .91 2-stroke or good .91-100 FS engine for all out 3d performance. The bipe in the vid was flown with a MDS .68 which I happen to luckily have a real good one.