![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")
Buying Used: Long-EZ
Construction workmanship varies greatly, so it pays to have experienced eyes look over your temptation before you succumb to its charms.
Yearly Condition Inspection, Part I
If you own a Cessna or other certificated airplane, you need to get an annual inspection every year. If you own an Experimental/Amateur-Built airplane,...
Design Process: Planform Effects on Span Loading and Drag
Last month we started our discussion of wing planforms with a look at the various planform shapes in use. We now turn our attention...
Billet or Weldment With Off-Axis Turning?
People tend to design around their particular expertise. A machinist will design based on machining parts out of solid billet, a welder will design...
Leaky Static Lines
Ever wonder why static systems often start to leak after a couple of years? See the little plastic insert between the two tubes in...
The Solar HOG
So, we’ve got this huge furnace about 94 million miles away from us, and we want to tap into that furnace’s power. Since this...
The Watch List
Is anything more disheartening than dropping a piece of hardware in your airframe and not being able to find it? Yes. A loose nut...
A Hole Where an Airshow Should Be
EAA’s decision to cancel AirVenture 2020 as a precaution against the coronavirus has created a tremendous ripple effect. Not only are your travel and...
In Case You Missed It
Wind Tunnel
Don your thinking caps, kids. Its time to learn about the value of nondimensionalized aerodynamic data.
Archive: February 1999
Our February 1999 issue teased a summer’s worth of aeronautical splash-n-dash with a “Water-Flying...
The Home Machinist (Part 8)
In his continuing series, author Bob Fritz discusses the ins and outs of threads including how to avoid seizing, types of threads, sizing, drilling holes, using a tap-drill chart, and matching fastener dimensions.