Check the listing for details. O.S. 35AX .35 Glow Engine w/Muffler RC Airplane Engine 13100. Condition: New. Listed at 189.00 USD. Big power in a small AX engine!The same quality construction that has enabled AX engines to deliver FX power in a more compact size can be found in the 35AX. Popular-sized aircraft will be able to swing bigger props, which means improved all-around performance. Plus, the 35AX requires no modifications to fit inside a cowl designed for a smaller engine!Features:Same mounting dimensions as the 32SX and 25FX engines.Distinctive 5-sided heat sink head design for better cooling.Diagonally-mounted needle that makes adjustments much safer.Recommended props: 10x6, 10x7, 11x6, 12x6Specifications:Displacement:5.7ccBore:20.2mmStroke:18.0mmPractical rpm:2,500-19,000Output:1.28hp/16,000rpmWeight:363gIncluded:Needle valve extention cableE-3080 Muffler#8 Glow Plug