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.
FEATURES: One-piece crankcase
Twin ball bearing-supported crankshaft
Schnuerle porting (Schnuerle scavenging)
Steel liner and ring with Aluminum piston
Tall, squared heat sink head for added cooling
Engineered for low fuel consumption and tight installations.
Side exhaust with muffler with rotatable exhaust outlet. Wide wing-
shaped exhaust port contributes to higher torque at lower rpm.
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 exhaust adaptor
One remote needle valve
One 77mm (3") clear fuel tubing for remote needle
Two 5 x 15mm cap head adapter mounting screws
Two 5 x 19mm cap head muffler mounting screws
One 4mm allen wrench
One expansion style muffler (E-5010) with screws
One illustrated instructions 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)
SPECS: Displacement: 26.23cc (1.60 cu in)
RPM range: 1,800 - 10,000 RPM
Bore: 33.6mm (1.32")
Stroke: 29.6mm (1.17")
Weight: Engine- 1235g (43.6oz) with muffler
Muffler: 275g (9.7oz)
Horsepower: 3.7 PS, 3.65 HP 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")
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
Needle Settings: High Speed: 2 - 2.5 turns out from fully closed
Low Speed: .75 turns out from fully closed with the
throttle fully closed
COMMENTS: Recommended is a 450-550cc fuel tank which 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).
updt lmm 3/31/09