![[Credit: Lisa Credit]](https://www.kitplanes.com/wp-content/uploads/2026/10/Experimental.jpg?w=265&h=198&crop=1 "Have You Seen Your Oplims?")
![[Credit: Andrew Robinson]](https://www.kitplanes.com/wp-content/uploads/2026/10/737_VGs2.jpg?w=265&h=198&crop=1 "Vortex Generators")
![[Credit: Van's Aircraft]](https://www.kitplanes.com/wp-content/uploads/2026/10/Vans_RV14A.jpg?w=265&h=198&crop=1 "Something New On The Horizon")
![[Credit: Lisa Turner]](https://www.kitplanes.com/wp-content/uploads/2026/10/Chute-Topaz-Gigapixel-2x-scale.jpg?w=265&h=198&crop=1 "Should You Consider A Whole Aircraft Parachute?"){kind=tracking}
Designer Spotlight: Lawrence B. Sperry
Amy Laboda takes a look at the life of inventor Lawrence Sperry, whose childhood fascination with a spinning top led to his development of critical flight control systems...and even the aircraft seat belt.
The Price of Power
More power! Bob Fritz takes a close look at what makes batteries go, what kind is best for your plane, and how to get the most out of your battery.
Freedom to See It Differently
Jeff Van West flight-tests two popular EFISes in a Remos GX LSA, and examines their accuracy, user interface and reliability. After all the stones have been unturned, your choice can be simplified: Are you a Mac or a PC?
To Launch a Light Sport
Its 90% done with 90% to go! Bob Fritz has a flyable airplane and a semi-long list of things still left to do to improve it.
Wind Tunnel
Tail stalls have been in the news lately-Barnaby Wainfan dissects this phenomenon, and clarifies what to do and what not to do.
Taylor Monoplane
Bob Grimstead has way too much fun and gets plenty of wind in his face as he flight-tests the plansbuilt Taylor Monoplane.
Comp Air 9
Chuck Berthe flies the turbine-powered Comp Air CA9, an impressive work in progress. With a combination of a massive airframe and a Honeywell turbine, the CA9 is a heavy hauler that will really scoot.
25th Anniversary: Rotax Run
The Rotax engines continual development over the years has led it to become the dominant engines among todays Light Sport Aircraft. Dave Martin details the engines evolution, and takes a look at what may be next.
In Case You Missed It
Contributors
RON ALEXANDERRon Alexander has been part of the homebuilding scene for decades. He began...
Fixed Pitch vs. Constant Speed
Deciding to use a fixed-pitch propeller or step up to the higher weight, cost, and complexity of a constant-speed prop in order to improve performance.
Exhausting!
We visit Vetterman Exhaust for a behind-the-scenes look at how exhaust systems are made.
