![[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}
Wind Tunnel
Barnaby Wainfan explores the optimum size of a wing and the best ways to balance performance and efficiency.
Flight Testing: Finding TAS from GPS Data
Math works! Kevin Horton shows you how to use GPS data to calculate true airspeed.
Return of the Turbo-Compound
Everything old is new again. Paul Lamar looks at the turbo-compound engine, developed in the post-WW-II era. Thrown over for jet engines, it may yet hold promise today as we search for more energy efficient ways to get the most out of increasingly expensive fuel.
All About Avionics: Wiring Bundles
Anyone can make wiring look good. The bonus is that your installations maintenance and future upgrades will be much easier. Stein Bruch shows you how.
Kitfox Super Sport Series 7
Marc Cook flies the capable ready-to-fly Kitfox Super Sport Series 7 SLSA, and spotlights owners John and Debra McBean’s deft handling of the company in a crowded market and rocky economy.
The Little Bush Plane That Could
Amy Laboda takes a slow flight down Memory Lane. The rich history of the Kitfox over the last 25 years has had its challenges and happy endings.
Unusual Attitude
As Dick Starks rouses the Dawn Patrol, he recalls his aeronautically inspired familiarity with grain crops, and a nimble performance of the Nieuport Stomp.
Engine Beat
As Lycoming and Continental vie for market share, the two power players are updating and improving long-existing engine designs and introducing new products to meet demand. By Steve Ells.
Down to Earth
As environmental regulations and market pressures converge on avgas boutique industry, Amy Laboda investigates whats going on in energy research… and whats to come.
In Case You Missed It
Affordable! Fast! Too Hot!
Marketing departments willfully ignore the difference between objective and subjective statements, especially the marketing...
![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=324&h=160&crop=1 "Viking V-42 Twin")
Viking V-42 Twin
Outside the exhibition hangers at Sun ‘n Fun, Viking Aircraft Engines had its usual...