![[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}
Build a Bear: Taking Stock
The big truck bringing Dave Prizio’s Texas Sport Cub arrives, and the inventory and painting processes begin.
The Home Machinist
All tapped out? Bob Fritz lets you in on his secrets for retrieving broken, over-torqued and stripped screw heads.
The Independence Project: Tackling the Tail
Dave Martin and the builders of Chapter 292 break out the rivet guns and bucking bars, and work on the RV-12 tail.
Flight Testing: Static System Error, Theory and Practice
Flight testing requires precise airspeed calibration and measurement. A less-than-optimal pitot-static system can compromise those numbers. Heres how to troubleshoot the problem.
Shop Talk: V-Block Drill Jig from Scrap
Having problems drilling a precise hole in a tube? Ishmael Fuentes has the perfect-and inexpensive-solution with this nifty, easy-to-make V-block drill jig.
Aero ‘lectrics
If you've got sticker shock after shopping for a main electrical system junction box, Jim Weir will ease your pain with a junction box you can build (and a cool color-coding system, to boot).
Wind Tunnel
Got separation anxiety? Vortex generators can keep the airflow attached where it belongs.
25th Anniversary: Power Shift
From scrounging engines to building Experimental powerplants: Editor-in-Chief Marc Cook looks at the last 25 years in engine choices for homebuilders.
Product Review: Garmin eLearning for the GPSMAP 696
Marc Cook tries out Garmins eLearning program for the GPSMAP 695/696.
In Case You Missed It
Buying Trouble-Purchased Homebuilt Accident Rates
Up to half the homebuilt fleet is owned by non-builders.