The BHX2500CA is powered by a 24.5 CC commercial-duty 4-stroke engine that requires no fuel mix, and has a 17.7 oz. fuel tank for longer run time and a maximum air speed of 145 mph. The low compression engine is engineered for easy starting, with an improved configuration for easier maintenance. The BHX2500CA is compact with the lowest weight (9.8 lbs.) in its class for easier control.