The Senior Telemaster ARF retains the ply glow engine mounting beams, although it's advertised for electric. All you have to do is bolt your engine in place. The mods done to the plane have only to do with supplying electric motor stand-offs and another added section in the assembly manual. Here are a couple of shots of my Senior Telemaster ARF with a Magnum .80 4-stroke up front. It's a perfect combination.