This is the O.S. Max 1.60 FX High-Performance R/C Engine used for Sport and Aerobatic Aircraft.

This 1.60 FX is Designed to use a Muffler or Tuned Pipe (Neither Included).

FEATURES: One-piece crankcase Twin ball bearing-supported crankshaft Schnuerle porting (Schnuerle scavenging) ABN construction (Aluminum Piston, Brass/Nickel Cylinder) with ring Tall, squared heat sink head for added cooling Engineered for low fuel consumption and tight installations. Side exhaust Extra long crankshaft & jam nut w/prop washer to secure the propeller #60F Carburetor with remote needle mounted on the backplate of the engine (to keep fingers away from the spinning propeller). The remote needle valve can be mounted three ways: vertical, horizontal, and separate from the engine. Two year warranty

INCLUDES: One Assembled 1.60 FX Ringed R/C Airplane Engine, #60F Carb., smaller nut for APC props, and 3/8-24 safety lock nut One remote needle valve One 77mm (3.03") clear fuel tubing for remote needle One illustrated instruction booklet w/parts list and O.S. decal One O.S. #8 glow plug (OSMG2691)

REQUIRES: Fuel with 18% (minimum) lubricant content and 5% to 25% Nitromethane (Can be flown on FAI fuel, which is 0% Nitro) Muffler adaptor and mounting screws Muffler or Tuned Pipe

SPECS: Displacement: 26.23cc (1.60 cu in) RPM range: 1,800 - 10,000 Bore: 33.6mm (1.32") Stroke: 29.6mm (1.17") Weight: 930g (32.8oz) Horsepower: 3.7 BHP at 9,000 RPM Length: 115.5mm (distance from the backplate screw to drive washer) 30mm (distance between centers of the mounting holes) Width: 51.5mm (width of engine neglecting engine mounting flanges) 62mm (distance between centers of the mounting holes) Exhaust mounting screws width (center to center): 42mm (1.65") Height: 123.2mm Crankshaft Thread Size: 3/8-24 Crankshaft Length (drive washer front to crankshaft front): 42mm Crankshaft Threaded Area: 28mm Suggested Props: Aerobatic: 15x12-14, 16x10-14, 16.5x10-13 Sport: 17x10-13, 18x10-12

COMMENTS: Recommended is a 450-550cc fuel tank that allows approximately 10 to 12 minute flights. Locate the fuel tank so that the top of the tank is 5-10mm (1/4-3/8") above the level of the needle valve. A 1/16" wire (not included) can be used to extend the needle valve by inserting the wire into the pre-drilled hole on the end of needle valve and tightening it in place with the supplied set screw. Remote needle valve is held in place by a nut instead of screws. To use a Tru Turn spinner and an APC propeller, modeler will need the Tru Turn jam nut set TT-0378-A (not carried at this time).