I would like to build a P40, which calls for a Power Pack C. That hasn't been in stock for some time, and I can't find comparable parts elsewhere. Can I use PP C radial edition on this plane? What is radial edition?
Radial motors are the new design spec FT had made for them. Its the same motor range as the originals but have slightly more power and are more efficient according to the testing that was done. They also have limited life time warranties.