OS Engines BGX-1 35cc glow engine. This is a big ringed engine for the big planes. Tower Hobbies sells them for $399.00. This one is on sale for $250.00 plus shipping. It is complete with the muffler and the round radial style mout as well as the accessories and paperwork. It has not seen fuel. I like to ship priority mail for an additional $11.35 shipping. Pay-Pal is preferred.