OS Engine GT-15HZ is the world's first 15cc gasoline engine designed specially for 90-class R/C helicopters, featuring fuel efficiency and highly stable performance.

Its power is perfect for sport, 3D and scale pilots alike. But that’s only a part of what makes the GT15 super. It also offers superb fuel economy, a pumped carb to deliver fuel dependably, the ease of the IG-05 Ignition module and smooth running without constant adjustments. And since it’s about the same size as most .90 glow engines, it’s an easy retrofit, too.  

Features:

It can be installed in a helicopter designed for 90 class glow enigne. (minor modification may be necessary depending on the make of the helicopter)

Fuel economy and efficient (a 600cc tank will be able to fly for about 60 minutes based on the factory flight results - may vary depending on fuel mixture and condition)

GT 15HZ generates less vibration than the currently available gasoline engine - designed specially for RC helicopter

Compact size gasoline engine designed for RC helicopter

O.S./Walbro®-developed pumper carb ensures consistent performance regardless of attitude, altitude or fuel level.

The IG-05 Ignition Module arrives with a straight plug cap for easy installation. It’s compatible with a wide range of battery chemistries, including NiCd or NiMH, LiPo and LiFe packs.

 

This is the OS E-4051 muffler comes with the engine.

 

Specifications of this engine:

Displacement: 14.95cc (0.912cu. in.)
Bore: 27.7mm (1.091in.)
Stroke: 24.8mm (0.976in.)
Practical RPM range: 2,000 - 16,000rms
Output: 2.8ps/14,000rpm (2.762hp/14,000rpm)
Weight: Engine: 738g, Ignition: 94g, E-4051 muffler:114g

Included with this engine:

OS GT-15HZ engineOS IG-05 ignitionCM-6 spark plugThrottle Valve LeverChoke Valve LeverPowerboost Pipe GT15HZ