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Specification and performance figures quoted with the Continental O-200-A engine (100 HP). Standard atmosphere, sea level, no wind.
Performance and specification figures based on prototype flight test results. All technical data, specification and performance figures subject to change without notice. 
Powerplant range: 80 - 125 HP engines.
Different engines and installed options will affect performance and specification figures. Heavier engines will limit useful load (by increasing the empty weight).

Engine Limitations: 80 - 125 hp, up to 300 lbs. installed. Alternative engines will affect performance, specifications and flight characteristics of the aircraft. Also, the weight and balance of the aircraft may be adversely affected by alternative engines, and the original fuel system may not be adequate or suitable for some engines. Most alternative engines will require a custom engine mount and engine cowl. Zenith Aircraft Company does not manufacture or directly support engines.

While the STOL CH 750 was developed to meet the definition of a light-sport aircraft, as defined in the FAA's Sport Pilot category, Zenith Aircraft Company cannot guarantee that the aircraft, as constructed by the builder, will meet the definition. Due to the gross weight limitations of the Sport Pilot / Light-Sport Aircraft category, it is recommended that the aircraft be kept as light as possible if planning to operate the aircraft in this category. Larger and heavier engines and other installed equipment limit the useful load of the aircraft, and may disqualify the aircraft from meeting the defined category limits of the Sport Pilot category.