HKS, HKS aircraft engine, HKS 4 stroke aircraft engine.

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HKS 4 stroke aircraft engine.

The HKS-700E is a 60 hp, horizontally opposed, two cylinder, four stroke engine. The 700E uses a combination of high technology and simplicity to achieve the twin goals of high power and reliability. Every major component on the 700E has been designed and tested for light aircraft use. 

The 700E engine employs modern features .such as a multi-valve, oil-cooled head design, nickel ceramic coated cylinders and dual .electronic ignition. The valve train is operated by a single cam with cylinder encased .push rods. Valve lash is maintained hydraulically. Torsional vibration is controlled with .the use of a large diameter flywheel between the crank and the integral gearbox. A dry.
sump lubrication system is utilized, allowing both tractor and pusher aircraft installations. 

To ensure consistent performance and conformity, each HKS-700E will come fully .broken-in and dyno tested at the factory for 11/2 hours. In development for over three .years, HKS has created the engine that OEMs, flight schools and pilots have been .waiting for. 

HKS specifications 
Four Stroke Design Displacement: 680 c.c.
Integral Gearbox (2.58 to 1) Bore: 85 mm
Four Valves Per Cylinder Stroke: 60 mm 
Air-cooled Cylinders Compression ratio: 11.3:1
Oil Cooled Heads Fuel:  
Unleaded Premium Automotive
Stainless Exhaust System Weights Engine only: 103 lbs
(with gearbox and electric starter)
Dual Electronic Ignition Exhaust system: 7 lbs
Dry Sump Lubrication Oil tank and cooler: 6 lbs
Electric Start Standard Total system: 116 lbs
Factory Break-in 1 1/2 hrs Performance
60 horsepower @ 6200 rpm
58 ft. lbs torque @ 5000 rpm
3.4 gal/hour @ 4200 rpm
500 hour time between overhaul

For several web video interviews on the HKS aircraft engine subscribe to the Ultralight Flyer web video magazine.

HKS aircraft engine for ultralights, and ultralight aircraft.

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