![[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}
Letters
Turbo-Compound & More There was a turbocharger for motorcycles that had a variable-stator turbine. With the variable nozzles formed by the stator blades,...
Avionics Special: Surfing the Rapids
Marc Cooks installation of Grand Rapids Technologies Horizon HX synthetic vision EFIS is darned near plug-and-play, and works beautifully.
Build a Bear: Put the Fabric in Fabrication
Dave Prizio evaluates the two major fabric covering systems – PolyFiber and Air-Tech – and sets to work, patiently covering his Texas Sport Cub airframe.
The Independence Project: We Start the Finish Kit
The Independence Project presses on, this time tackling the multiple tasks that make up the finish kit on the RV-12. By Dave Martin.
Radio Too Hot? Cool It!
Jim Weir borrows a trick from the world of computers to provide a cool breeze to your radio stack.
Wind Tunnel
Barnaby Wainfan brings aerodynamics to life with an illustrated field guide to the various devices seen at AirVenture.
Bush Hog
How do you say ginormous in Russian? Bush Hog. Ed Wischmeyer flies the E-7 prototype, and finds the development team is on top of things.
25th Anniversary: Change Is Good
At AirVenture 2009, Amy Laboda took the opportunity to talk with 12 key innovators in the world of Experimental aviation, with one question in mind: What do you think has been the most significant change in homebuilding aircraft in the past 25 years?
Gathering at Gardner
Dick and Sharon Starks bring the Morane to the Gathering of Eagles WW-I replica fly-in. Where The Dawn Patrol goes, adventure follows.
In Case You Missed It
Aero’ Lectrics
From outlet convertors to button switches and parts to make your own temperature sensor, Jim Weir gives an overview of his favorite electronics sources and what’s available to make the heart of your inner geek beat a little faster.
Aero ‘lectrics
How do you condition a battery not in regular use to extend its lifetime? Run it down and then charge it back up. Jim Weir explains how to achieve this with about $10 worth of parts.