With a total weight of mere 3650 grams, GP178 keeps a perfect balance between weight and horsepower. It presents minimum vibration and superior smoothness at the same time, making it the most suitable engine for your 37%~42% aircrafts. The specially mechanic design gurantees optimal performance during extreme flights.


Displacement 178 c.c.
Bore 53 mm
RPM Range 1100-9000
Output 21.5 Horsepower 
Total Weight 3550 g
Ignition Weight 202 g 
Muffler Weight 430 g
Gasoline 92 Unleaded
Gas/Oil Mix Ratio 40:1 
Carburetor Tillotson HT-14A
Spark Plug NGK CM-6


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  • Stock Status


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