![Maintenance technician William Vergonet conducts an inspection on a Cub. [Credit: Lisa Turner]](https://www.kitplanes.com/wp-content/uploads/2026/09/IMG_3535.jpg?w=534&h=462&crop=1 "Post-Flight Maintenance Debrief")
![Pat McKiernan has found that he and his dad who built this beautiful RV-7 simply learned to enjoy the build. [Credit: Bill Wilson]](https://www.kitplanes.com/wp-content/uploads/2026/08/Builder.jpg?w=265&h=198&crop=1 "Life Lessons From Building an Airplane")
![[Credit: AdobeStock]](https://www.kitplanes.com/wp-content/uploads/2026/08/AdobeStock_51865118.jpg?w=265&h=198&crop=1 "FAA MOSAIC Rule Fully Implemented")
![My 36 year old clipboard from when I started at Boeing. Engineering ruler and fastener/fastener hole cheat sheets. [Credit: Andrew Robinson]](https://www.kitplanes.com/wp-content/uploads/2026/08/Liaison_clipboard.jpg?w=265&h=198&crop=1 "What Is a Liaison Engineer?")
![At Sun ‘n Fun 2026, Viking Aircraft Engines surprised the crowd with its first complete kit — the V-42, a high-wing twin powered by two Honda-based engines. Here’s an early look. [Credit: Andrew Robinson]](https://www.kitplanes.com/wp-content/uploads/2026/08/P1020293.jpg?w=265&h=198&crop=1 "Viking V-42 Twin")
Summer-Time
I love to look at the beautiful work and magnificent instrument panels that our KITPLANES® readers show us in these pages. But I also...
Design Process: Planform Effects on Structure and Weight
Last month we took a look at how the planform of the wing affects the spanwise distribution of lift along the wing. The shape...
Turnbuckle Safety Wire
Turnbuckles are usually used in control systems to apply the proper amount of tension to the cables. It is extremely important to ensure that...
Booster or Bravado?
A few years back, during AirVenture, a person asked me what vibration testing had been performed on the tail of the Sonex. His jargon-filled...
Archive: March 2009
Just three months into our yearlong 25th Anniversary year, we had a thoroughly reworked and completely exciting ViperJet on the cover. Lucky Doug Rozendaal,...
Airpark Living, Continued
Last month, I talked about the various types of airparks available for those so inclined as well as the specific airpark, AZ82, that my...
Old World, New Engines
After putting another $140 into the gas tanks of my 300-hp biplane, I have to admit the newer sport planes coming out of Europe...
Velocity U
You could probably figure out how to fly one on your own, but it wouldn’t be pretty. Velocity will show you how.
In Case You Missed It
Overheating and Intermittent Electrical Problems
I find that overheating and intermittent electrical gremlins are some of the toughest problems...
Buzzwords: Human Factors—The Basics
Small design considerations can have a big impact on comfort, convenience and safety.
Ask the DAR
This month our DAR answers questions about the size and placement requirements for N numbers on Experimental aircraft.