![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?")
Buzzwords: Maneuvering Speed
Ed Kolano unravels some of the misconceptions of the oft-misunderstood term, “maneuvering speed,” and explains the implications for pilots of homebuilt aircraft.
Maintenance Matters
In Part 2 of his discussion, Steve Ells delves into more detail about patching, repairing or replacing aircraft aluminum.
Build It Better: When 1+1 Does Not Equal 2
Paul Dye explains how to achieve unlike (or dissimilar) redundancy on the various systems in your homebuilt.
Gross Weights and “Destroyed” Airplanes
Where you you find the gross weight of an aircraft? And can you re-register an airplane that the FAA has deemed "destroyed?"
Wind Tunnel
Builders are often in a rush to prove the airworthiness of their homebuilt projects, but thorough flight-testing is essential.
Virus Motorglider
Ed Wischmeyer samples the Pipistrel Virus, a versatile Slovenian composite motorglider that can be built or bought ready-to-fly.
2012 Alternative Engine Buyer’s Guide
If you’re in the market for an auto-conversion engine for your homebuilt aircraft, here’s a definitive guide to the options. By Patrick Panzera.
Firewall Forward: New, Used, Something Else?
For some builders, new aircraft engines may just be out of reach. Dave Prizio explains what to look for in a used Lycoming or Lycoming-type engine along with what you need to consider before buying.
In Case You Missed It
Around the Patch
Have you checked your fuel system for leaks lately? Turns out there's a good reason to periodically conduct a thorough investigation. Incipient leaks may go undetected. Worse, when the O-ring on the fuel-selector valve goes bad, it could allow air into the system, which means your engine could misbehave at a most inconvenient time. Often, this malady is difficult to diagnose and the assumption is that the fuel selector is OK when it is not.
What’s New
ZuluLog offers a pilot logbook for Android devices, Zenith and UL Power announce a firewall-forward kit for the CH 650, and Garmin introduces the aera 796, its new flagship portable navigator.