O.S. Model no. 15612

Specifications:
Displacement .545 cu in (8.93cc)
Bore .906" (23mm)
Stroke .846" (21.5mm)
Practical RPM 2,000-17,000
Power Output 1.75 PS, 1.68 HP/16,000 RPM
Weight w/o muffler 14.29oz (405g)
Weight w/ muffler 18.52oz (525g)
Recommended Props 12x7-8, 13x6-7

This is the O.S. Max .55 AX Aircraft Engine with Muffler. Advanced Bi-Metallic Liner process uses a double layer of plating material rather than one thick layer. This helps the metal bond to the cylinder and makes the plating more durable. Also, the plating process is more consistent, resulting in a more precise fit between piston and sleeve for better compression and longer life.
Includes: O.S. Max 55 AX ABL Aircraft Engine with E-3070 Muffler, 40J carburetor, #8 glow plug, illustrated instruction manual, 3.5" (90mm) long needle valve extension cable and two 3x35mm muffler screws.

Features
Same mounting dimensions as the O.S. Max .46 AX
Power Box positionable muffler
Angular head design offers increased surface area for better cooling
40J Carburetor with diagonally placed Needle Valve eliminating Remote Needle Valve placement