Our upgrades were developed as a Supplemental Type Certificate (STC) issued by the US Federal Aviation Administration (FAA), which modifies the original type certificate for which an aircraft would be manufactured. They include higher horsepower engine, propeller upgrades, and propeller-only upgrades. We offer the STC options owned by Davis Aviation and distribute other STC product lines for other aircraft.

We provide a propeller kit package for your convenience and offer other parts and accessories you may want to install with your engine upgrade. Our experts determine the proper IO-550 engine conversion specification you need and allow you to source your engine yourself. We can quote the engine for you and add it to the propeller kit package.

Davis Aviation offers worldwide distribution of the Bonaire 550 engine and propeller upgrade, propeller-only installations, and engine mount modifications.