Learning to Weld
Ken Scott's series on welding closes with an afterword from his mentor, Philip Groelz, who explains why TIG welding is the way to go.
Homebuilt Aircraft Insurance
Choosing insurance for your homebuilt can be a complex decision. Scott Smith breaks it down and explains what you need to keep your plane covered-at every stage.
Alternative Energies
Dale Kramer invigorated the ultralight movement in the 1970s with the Lazair. Now he's doing it again-with a battery-powered version. By Dean Sigler.
Wind Tunnel
The way lift is distributed along a wing's span affects both the structure and its aerodynamics.
Traveling Machine
Van's two-seat RV-12 LSA proves itself as a surprisingly travel-friendly cross-country airplane. By Marc Cook.
2012 Kit Aircraft Buyer’s Guide
The 2012 Kit Aircraft Buyer's Guide features a stunning 316 designs.
Editor’s Log
Mary Bernard discusses the challenges companies face when they try to improve an existing design, let alone develop a new product. The Glasair Sportsman TC is a case in point.
What’s New
TCW Technologies announces two new products, ChartFlier introduces a low-cost entry to the ADS-B market, and a veteran airshow performer pilots the SubSonex jet on its maiden flight.
Viewfinder
Marc Cook presents an argument for rewriting LSA weight-limit rules to encourage new design and technology, while improving safety and performance.

![Have You Seen Your Oplims? [Credit: Lisa Credit]](https://www.kitplanes.com/wp-content/uploads/2026/10/Experimental.jpg?w=265&h=198&crop=1)
![Vortex Generators [Credit: Andrew Robinson]](https://www.kitplanes.com/wp-content/uploads/2026/10/737_VGs2.jpg?w=265&h=198&crop=1)
![Something New On The Horizon [Credit: Van's Aircraft]](https://www.kitplanes.com/wp-content/uploads/2026/10/Vans_RV14A.jpg?w=265&h=198&crop=1)













