The perfect engine for the Green Model USA - Extra 330L ARF Gas Powered Airplane!
FEATURES
Side draft carburetor
Pitts style muffler available
Induction trumpet included
Electronic ignition included - fixed timing
WEIGHT - 3.0 lbs without plug, ignition or muffler - Ignition is very light weight at just 3 oz - Lightweight Pitts muffler at 6.5 oz.
SPECIFICATIONS
Displacement Power Bore Stroke RPM Range Fuel Fuel Ratio Piston Rod Crankshaft Ignition Porting Prop Size Static Thrust
45cc/2.7 ci 4.2 hp 43mm/1.7" 31mm/1.22" 1200-7800 RPM Regular Gas 1:25 for break in then up to 1:40 Oil/Gas 2 Needle Bearings 2 Ball Bearings 6 Volt- Electronic (Fixed Advance) 2 Channels 19x8 to 20x8 break in, 21x8 normal operation 18 lbs depending on air density and humidity
Designed for sport, but engineered for excellence, the .91 FX offers the power and user-friendly features of otherFX Series engines in a displacement fit for large-scale aircraft. The .91 FX neatly bridges the power gap between .60-size glow engines and gas engines, by offering the easy familiarity of glow technology combined with the added power that today's large-scale modelers demand.
With its top output of 2.8 hp, the .91 FX can put a large-scale plane through its paces with ease. And with O.S.' meticulous testing and design behind it, large-scale pilots can fly the best in long-term dependability.
Multi-position remote-mounted needle valve design offers greater flexibility and safety for the pilot. The needle valve can be positioned upright or to the side to avoid cowl modifications and preserve scale looks.
Coarse threads and an O-ring seal on the needle valve minimize settings creep over time due to vibration and air leaks, providing more flights with fewer adjustments.
Extra-long crankshaft and locknut assembly offer more thread length for better prop nut engagement and more safety for pilots and onlookers.
A lower crankcase profile leaves room for more head height and cooling fins-semi-squared head design further enhances cooling capacity and performance.
Dual bearing design includes a larger front bearing for added durability and smoothness.
The ideal power plant for mostTop Flite®Gold Edition Kits
