Honda Motor Co. and Teledyne Continental Motors (TCM) are assessing market interest in this Honda-designed aircraft engine. Although Honda and TCM have been collaborating on the engine for several years, the joint effort wasn't announced until March of this year. This is the prototype's first public showing.
The engine is a water-cooled 225 hp horizontally-opposed four-cylinder. Displacement is 6.06 liters (370 ci). Dry weight is a remarkable 200 lb (91 kg). The fuel specifics are also good at 0.37 lb/hp-hr which translates to about 10.4 gph at 75% power.