![[Credit: AdobeStock]](https://www.kitplanes.com/wp-content/uploads/2026/08/AdobeStock_51865118.jpg?w=534&h=462&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")
![A STOL CH 750 [Credit: Mike Davenport]](https://www.kitplanes.com/wp-content/uploads/2026/08/STOL-CH-750.jpg?w=265&h=198&crop=1 "Why Are So Many Airplanes Yellow?")
![A Zenith STOL CH701 on Zenair amphibious floats rests on a sandbar on the Caribbean island of Guadeloupe. [Credit: Zenith Aircraft]](https://www.kitplanes.com/wp-content/uploads/2026/08/zenair-floats-STOL_CH_701a-Topaz-Gigapixel-2x-scale-Topaz-Gigapixel-2x-scale.jpg?w=265&h=198&crop=1 "Zenith STOL CH 701 at 40: The Iconic ‘Sky Jeep’ Design Audit"){kind=tracking}
Power and Heat
The cooling system is a major component of the airplane. It has a large impact on the performance and reliability of the machine. The...
Building the ‘Beater – Part 6
As promised, Lycoming delivered the Thunderbolt engine in December to Vertical Aviation. Since this was the first Thunderbolt engine to be installed in a...
Oil Filter Slicer-Off-Er
The process of inspecting an oil filter is not complicated. Slice the top off using a filter cutting tool. Extract the cartridge that holds...
First Timer’s AirVenture Arrival
How busy is the Oshkosh arrival? Ride along for a portion of columnist Ariana Rayment's first flight into the big show with our EIC...
Teflon Tape
Do not use Teflon tape on any fuel system connection. It can deteriorate and leave particles and remnants, which can clog the fuel system,...
Bose A30
For years, Bose has enjoyed a loyal following in the high-end aviation headset market with models that have good performance, high quality and decent...
Archive: March 1995
Rich Trickel’s KIS Cruiser was the subject of our March 1995 cover. KITPLANES® Managing Editor Keith Beveridge not only got to sample the TR-4...
This Fly Baby is the Katz’ Meow!
In the early 1960s, a young Jim Katz was absorbing page after page in Air Progress magazine, and when he saw an article that...
In Case You Missed It
Shopping for a Second-Hand Project
Bargains are out there, but do your homework before writing a big check.
Ski Patrol
RANS S-7S builder Tom Simko details how his desire to fly year-round in snow country was satisfied (and then some) by installing Datum wheel skis.