Details
38200 OS GT22 Gasoline Engine W/E-5040 Silencer
Bringing the OS petrol engine technology into the smaller class of model, the OS GT-22 has all the sophistication that you would expect from OS in terms of quality of manufacturer and innovative design yet manages to combine it all in a compact, powerful package.
Like the GT-33, the GT-22 has a steel liner for durabilty, a lightweight, ringed piston and a one piece crankcase. OS are the masters of optimising internal designs in a way that allows superb performance combined with easy starting, long life. The design is from the ground up rather than adapting old technology for a different use. Deep fins are needed to carry away the extra heat generated by petrol engines and OS use their casting expertise to make them efficiently thin to be able to do that.
Carburation come courtesy of a real 'Walbro' carburettor adapted by OS for the GT-22. Being a 'pumped' style of carburettor, tank height/location is a little less critical than a non-pumped carburettor. Once set for the fuel being used, it requires almost no adjustment.
Ignition is provided by a sophisticated unit that is also common to the GT-33. The main HT lead is shielded to prevent spurious emissions and the spark is delivered by a high quality CM-6 sparkk plug. Not quite a fit and forget system but pretty close!!
OS engines are never the cheapest, but like all things in life, you get what you pay for and every OS is guaranteed to have the very best quality, time after time.
Specifications:
Weight: 761g (26.86oz) W/O Silencer/Ign.
Weight: 999.2g (35.24oz) Complete
Propeller Range: 15 x 10, 16 x 8/10, 17 x 6/8
Displacement:
22.12cc (1.35cu.in)
Bore: 32.0mm (1,26")
Stroke: 27.5mm (1.083")
Power Output: 2.7PS (2.66hp) @ 9000rpm
Practical RPM: 1800 - 9000 RPM