Letters
Starter SauceRegarding Amy Labodas experience with the purge valve in her RV-10, I also use an Airflow Performance experimental fuel-injection system on the IO-360-B1B...
Build Your Skills: Fabric
Finishing tapes not only strengthen areas that need reinforcement, but they also cover unsightly screws, rivets and rib-lacing cord. This month we cover the types of tapes available, where they should be applied and how to apply them; by Ron Alexander.
To Launch a Light Sport
It’s amazing what a little light will reveal, in this case a planned hole for the wing that would have been dangerously close to the wingspar. No worries. The problem was remedied, and it was on to fixing flaws in the wing’s surface and working on the nosewheel and front suspension; by Bob Fritz.
Aero ‘lectrics
This month we get into actually building the portable antenna that was described last month;
Wind Tunnel
In order to bank the airplane and execute a turn properly, adverse yaw must be countered or eliminate altogether. The discussion of how to do this includes rudder control, aileron-rudder interconnects, directional stability, differential ailerons, aileron drag and the use of spoilers;
Wag-Aero Sport Trainer
Builder Dave Klages’ Wag-Aero Sport Trainer remains faithful in most ways to the J-3 Cub that inspired it; by Marc Cook.
Roll Your Own
Although the KK-1 is scratch-built, builders Ken Scott and Ken Krueger have used all of the modern tools at their disposal to expedite the design and building process. This month, Scott discusses the more than satisfactory results of load-testing the wing and horizontal stab;
Around the Patch
Editor-in-Chief Marc Cook offers an explanation of how the annual Aircraft Buyer's Guides are assembled, and his attempts to enhance the usefulness and relevance of the information provided.
What’s New
In this months What's New, ECi announces a new extended warranty on its Titan cylinders, and Vesta, Inc. offers a new Experimental aircraft engine conversion based on a V-6 Honda auto engine; edited by Mary Bernard.
Ask the DAR
This month, a new column introduces Designated Airworthiness Representative Mel Asberry, who describes his background in homebuilding and details some of what hes looking for as a DAR. Questions welcome.
![What Is a Liaison Engineer? 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=534&h=462&crop=1)
![Viking V-42 Twin 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)
![Why Are So Many Airplanes Yellow? 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)
![The Safety Triangle: Balancing Skill, Knowledge, and Judgment in Flying [Credit: LeRoy Cook]](https://www.kitplanes.com/wp-content/uploads/2026/08/IMG_2791.jpg?w=265&h=198&crop=1)



