Wittman Buttercup, on wheel skis. The owner uses it to fly north and go ice fishing. Our resident aerodynamicist was intrigued by its unusual wingtips.
In Case You Missed It
Rotaxs 915 iS is Ready to Roll
It's got a great power-to-weight ratio, but also a complex installation procedure. Don't be surprised if it inspires a new design or two.
Maintenance Matters
Veteran A&P Steve Ells explains the basics of setting up and organizing your home workshop, and the tools you'll need to complete and maintain your project.