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.
Forget about all those sharp corners, the quantity of fuel aboard and the fire extinguisher you threw in the baggage compartment without tying it down. It is always important to at least consider the fact that the most dangerous thing to have in the cockpit when things go wrong is the owner of the airplane.