If you’re building a Glasair Sportsman, you have the choice of a 180-HP IO-360 or the beefier IO-390. Which engine is best? It depends? In this video, Kitplanes Magazine editor Marc Cook analyzes the pros and cons.
The Rotax engines continual development over the years has led it to become the dominant engines among todays Light Sport Aircraft. Dave Martin details the engines evolution, and takes a look at what may be next.