MAX-35AX 5.77cc 2-stroke Engine w/ SilencerO. S. MAX 35AX 5. 77cc 2 Stroke Airplane Engine All of the features that make AX Series the choice of more and more modelers: Distinctive 5 sided heat sink head design for better cooling, diagonally mounted needle that makes adjustments much safer, and dual layer durability of ABL (Advanced Bimetallic Liner) construction. Features: For small sized aerobatic, scale and sport models Produces exceptional output for popular sized planes The same mounting