![Oshkosh is more popular than ever with three-quarters of a million people in attendance at AirVenture 2026. [Credit: LeRoy Cook]](https://www.kitplanes.com/wp-content/uploads/2026/09/IMG_7321-Topaz-Gigapixel-2x-scale.jpg?w=534&h=462&crop=1 "Wide World of Airplanes"){kind=tracking}
![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=265&h=198&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?")
Cutting Aluminum on the Table Saw
The first time I watched someone cut a one-inch thick slab of 7075 aluminum with a table saw, I thought, "You must be...
Letters
Timing MagnetosDave Prizio's article on external timing of magnetos (October 2013) provides a very good description of the process. However, I may be able...
Letters
What's in a Name?I just opened my September issue of KITPLANES® and found a very nice article describing leakdown testing of an engine. But...
In Case You Missed It
Ask the DAR
A reader asks if he can use his Experimental/Amateur-Built aircraft for instruction. DAR Mel Asberry’s answer: It’s not a problem, but charging for transition training of a non-owner pilot requires a specific operational exemption.
Firewall Forward: Choosing Your Engine
Many factors go into choosing the right engine for your homebuilt. In Part 1 of this new series, Dave Prizio provides an overview of the options available in Lycoming and Lycoming-type engines, and what you need to consider when making a decision.
What’s New
Garmin expands online training and Sky-Tec introduces ST5 starters for Continentals. Edited by Mary Bernard.