O.S. GT15HZ Gas Helicopter Engine w/PowerBoost Pipe

In 1936, Shigeo Ogawa set up his original machine-shop, making model steam engines. At the same time the first 1.6 cc O.S. Type-1 miniature gasoline engine was made. 200 production models sold under the name “Pixie” were exported. A short time later the O.S. brand came about. For all these years, OS Engines have been a recognizable name of power, reliability, cutting edge design and quality in the model engine arena. From their much loved “Max” series, to their unique Wankel rotary engine, to the powerful O.S. Speed series engines, they have something for everyone. HobbyKing is proud to be able to bring a wide selection of the latest O.S. Engines to you.

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. Making it easy for you, we have bundled it with O.S.'s PowerBoost tuned muffler which is compact and will fit most helicopter applications.

For power, a 25:1 fuel/oil mixture, which is very clean running compared to messy nitro fuel. Fuel for this engine is recommended to use 87 octane and a quality 2-stroke oil, mixed at 25 parts fuel, to 1 part oil.

Features:
• Compact — fits most .90-size helis with only minor modifications
• Offers outstanding fuel economy
• Runs consistently without constant pre-flight adjustments
• 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
• O.S./Walbro®-developed pumper carb ensures consistent performance regardless of attitude, altitude or fuel level
• Includes O.S. PowerBoost tuned muffler for optimal power and performance

Specs:
Displacement: 0.912 cu in (14.95 cc)
Bore: 1.091 in (27.7 mm)
Stroke: 0.976 in (24.8 mm)
Practical rpm: 2,000-16,000
Output: 2.76 hp @ 14,000 rpm
Weight:
    Engine: 26.4 oz (748 g)
    IG-05 Ignition Module: 3.2 oz (92 g)
    PowerBoost Pipe: 7 oz (198 g)
Ignition Battery: 4.8-8.4V NiCd or NiMH, 6.6V LiFe or 7.4V LiPo pack
Gasoline/Oil Mix: 25:1

Includes:
PowerBoost Pipe
IG-05 Ignition Module
CM-6 Spark Plug

Requires: 4.8~8.4V (2S Lipoly, or 4~6 cellNiCd/NiMH)