NitroPlanes 69" Yak54 ($199.00 ARF) with a YS 1.10S 4-stroke or an OS 1.20AX 2-stroke. With a finished weight of 8lb 6oz, 3D Performance with the YS 1.10S is spectacular.

If you can still find one, the larger (76 inch) Ultra RC Giles 202 is one of the best 3d planes around for an OS 1.60 2-stroke glow. The Ultra RC Giles 202 in the picture below is powered by an MVVS 26cc gasser with a pipe and turns the same RPM as my OS 1.60 with a Pitt's muffler. The gasser weighs 12 oz more but is still a very good 3D performer. The pipe is the key to getting good performance out of the 26cc.