Research: Propulsion
2.2. Propulsion System The Honda GX-25 was selected as the CU-24 propulsion system due to its remarkable fuel efficiency. The GX-25 is a 25cc engine with overhead cams. Being a string pull engine, the GX-25 has a shaft in the rear, making it ideal for generator attachment as well.
| Engine Type | Air-cooled, 4-stroke OHC single |
| Horsepower | 1.1 |
| Bore x Stroke | 35 x 26 mm |
| Displacement | 25cm3 |
| Maximum Power Output | 0.81 kW (1.1PS) @ 7000 RPM |
| Maximum Torque | 1.25 N-m @ 5000 RPM |
| Oil Capacity / Type | 0.08 L / 10W 30 |
| Weight (after aircraft conversions) | 4.375 lbs |
