I'd guess that in my remaining lifetime, ( estimated 5 minutes to 30 years) there'll still be a large number of glow powered planes sharing the air with electrics, gas, and turbines. And Rubber, Diesel, CO2, Compressed Air, and Model Rockets. And Hand Launch, Hi-Start, Catapault, and Tow Line!

My personal feeling is that some of the unsafe flying techniques I've seen in a couple parks from E-powered independant park flyers will be more of a problem for model airplane flying than any other type of power. Club members who refuse to follow local rules don't help, either. Not the power plant itself, but the attitude of a few flyers. They've already caused the banning of any type of flying, including, it seems, kites, as well as RC cars and boats, in any public park or parking lots, in several near-by communities. Copping attitudes only gets one stepped on.