WM Zen 50
The YS 63 is Ideal for that aircraft. But that is an F3A practice aircraft not a 3D aircraft. If you want one in that size get the Kyosho Majestic It does all the 3D maneuvers and you can tail touch the length of a runway with it. Or the Hirobo Super Stream 50 not the Stream 50. The Super is for 3D and the Stream 50 is like the Zen as it's for F3A practice Both the Zen and the Stream have Belly pans for Tuned pipes.