Spotlight: O.S. GT15HZ Gasoline Engine

This is the heli engine sport, 3D and scale pilots have been waiting for: a power plant with the ease, simplicity and economy of gas power — and the lasting quality of O.S.
Its compact crankcase makes it an easy fit for many .90-sized helis, including the Thunder Tiger G4, Align T-Rex 700N and others. It's equipped with an IG-05 Ignition Module that ensures fast, first-time starts whether you power it with NiCd, NiMH, LiPo or LiFe packs. A straight plug cap makes installation fast and straightforward. The GT15HZ also features an O.S./Walbro®-developed pumper carb that ensures consistently superior performance in the air, without the need for constant pre-flight adjustments on the ground. The GT15HZ is available alone or with a PowerBoost Pipe that maximizes performance. The PowerBoost pipe is also available separately, as is an
optional Pitts-style muffler, the E-4051. The GT15HZ, pipe and muffler are all available now, at better hobby stores everywhere.
SPECIFICATIONS:
OSMG1915 GT15HZ Gasoline Heli Engine
OSMG1916 GT15HZ Gasoline Heli Engine
OSMG2889 E-4041 Pitts-Style Muffler
OSMG2890 PowerBoost Pipe GT15HZ
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)
E-4051 Muffler: 5 oz (144 g)
Includes: CM-6 spark plug & IG-05 Ignition Module
Requires: regular unleaded gasoline, 2-stroke engine oil & 4.8V-8.4V ignition battery
Ignition Battery: 4.8-8.4V NiCd or NiMH, 6.6V LiFe or 7.4V LiPo pack
Gas/Oil Mix: 25:1