The O.S. GT15HZ 2-Stroke petrol helicopter engine is also the first petrol engine designed especially for 90 class engine/ 700 size helicopters. With an approximate runtime ratio of 1 minute per 10cc of petrol, it offers astoundingly long flight times and a low cost alternative to glow fuel.
Petrol engines generates larger amounts of heat. To prevent overheating, a large deep-finned head is employed, which ensures a steady power supply by cooling the entire engine efficiently.
The Ignition unit has been designed with ignition timing specifically for helicopter engines and features a straight plug cap for easier installation in the limited space. Suitable for use with a 4.8-7.5V battery.
OS test data shows with a 300cc fuel tank you can achieve an approximately 25 minute long flight!
OS Running Notes
Engine = 706g, CDI = 92g
2.8PS @ 14,000 rpm
2,000 - 16,000 rpm
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