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.
SPECIFICATION
 
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 : Walbro WB-27
Spark Plug : NGK CM-6
Recommended Propeller : 30x13, 32x10, 32x11