![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?")
Firewall Forward: Choosing a Prop for Your Project
Wood or composite? Constant speed or fixed pitch? The choice of propeller should be made just as carefully as the choice of an engine. Dave Prizio outlines some of the important factors to consider.
Unusual Attitude
If you want to install an alternative engine in your aircraft, make sure you've thought through the issues of weight, thrust line, cooling and cowling.
Build It Better: Where’s Your Margin?
How can you give yourself that margin of safety that you hope you'll never need?
Cable Classroom
Most homebuilt aircraft use control cables, so it's helpful to understand how to select, install and maintain them.
Down to Earth
Many homebuilders understand their kits as just a starting point for their own preferred modifications.
Anatomy of a Modification
Paul Dye takes readers through a rework of his RV-3's fuel system to illustrate why some mods are a sound choice.
Ask the DAR
Can a former Part 103 aircraft be registered as an LSA? And how is an appropriate Phase I flight-test area determined?
Aero ‘lectrics
This month, Jim Weir describes how to create an LED strip with any three colors and offers a brief lesson on human optics too.
Wind Tunnel
Certain situations and configurations just call out for a ducted-fan installation. Barnaby Wainfan explains the benefits and drawbacks.
In Case You Missed It
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;
Making Peace with the Jabiru Engine
Keep it cool: That’s the secret to success with the Jabiru engine, which will reward your efforts by being a simple, powerful and smooth-running powerplant. Dave Prizio offers some suggestions for Jabiru care.