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OS Airplane Engines
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The standard in sport engine technology, in a unique streamlined design.
More cooling fin area extends the life of the engine, and virtually eliminates engine seizures in the air
.
Added "webbing" on the crankcase strengthens high-stress areas to help ensure that they stand up to the rigors of learning to fly
.
Overall tighter needle valve fit utilizes an "O" ring to help maintain the performance levels you need
.
A fuel inlet that points up allows for easier fuel line access for fueling and defueling.
1.2HP
9.6oz

OS .46 LA Engine
...$79.99

 

As the replacement for the high-performance .46 FX, it's no wonder that the .46 AX shares many of its features. The raw power. A remote needle valve. Mounting bolt patterns. A balanced "D"-cut crankshaft supported by dual bearings. CNC-machining for the piston and other parts. And the same exclusive ABL cylinder liner that has made FX reliability a byword. But all the same, the .46 AX is a different — and better — engine. Why? Because times change and technology advances. And because O.S. uses the best of both to make a good engine a better engine.

* Features the .46 FX's durable ABL (Advanced Bimetallic Liner) plating, as well as a new design that automatically centers, levels and seats the head during re-replacement. Head snugs down with only four screws — not six.

* Subtly tapered low-end needle eliminates surging at transition, ensuring exceptionally smooth, consistent throttle control from idle to top speed.

* Redesigned liner ports and a ball-milled inlet port minimize turbulence during fuel/air mixing, making combustion and power output more predictable.

* New high-speed needle bracket simplifies horizontal/vertical mounting — and can be replaced in just minutes.

* Minimizes vibration-induced "creep" and re-sets with a ratchet spring on the high-speed needle and O-ring seals on both needles. A simple rotor guide screw replaces the throttle stop screw — and eliminates spring-related movement.

* Includes a new low-noise E-3010 muffler and 2-year warranty protection.

* Includes a lock nut and longer crankshaft with more thread length, for better prop nut engagement and greater pilot safety.
1.65HP
17.2oz(with muffler)

OS .46 AX Engine
...$129.99

 

All OS FX engines come with remote needle valve - the feature most asked for!
A longer crankshaft provides more secure attachment for spinner, prop and nut
Dual ball bearing construction adds durability and longevity
Semi-square head shape creates more fin area to increase cooling capacity
Each engine comes with a high-performance carburetor and muffler with adjustable exhaust direction and built-in pressure tap
.
1.9HP
19.4oz

OS .61 FX Engine
...$179.99

 

OS developed the Surpass Series of 4-stroke engines for discerning fliers who demand more power. Able to swing larger props and supply more usable horsepower, Surpass 4-strokes provide the best performance for your plane, regardless of scale or flying style.
All Surpass engines feature a helix gear-driven camshaft on the front end and dependable updraft carburetor in the back.
All include glow plug and standard silencer.
1.6HP
22.9 oz

OS .91 II Surpass Engine
...$299.99

 

 

 

 

 

 

 

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