Limitations and Certifications

LIMITATIONS

There is only one limitation: the FAA does not allow the use of mogas while carrying paying passengers under Part 135. No other country has imposed similar restrictions. This is dealt with in the Op specs, and not defined on the STC itself.

CERTIFICATION

All of our engine STC approvals are based on 150 hour ground endurance runs. A total of 105 hours is conducted at rated sea level power (full throttle - 100% power) with the remaining 45 hours conducted at various throttle settings from 60 to 85 percent.

Extensive detonation testing is conducted prior to the endurance testing to establish the engine's ability to function without damage and to develop rated power.

Airframes are tested against vapor lock by conducting flight tests to a minimum of 12,500 feet. The first series of tests is conducted on high volatility winter blend fuel which is heated in the wing to 85 degrees before takeoff and climb. The second is conducted on winter blend fuel heated to 110 degrees prior to takeoff and climb. Any loss of power or excessive fuel pressure loss during these tests results in a failure of the test. Extensive fuel flow tests are also conducted on airframe fuel systems to insure adequate fuel flow.