![[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}
Firewall Forward: Engine Mounts
Dynafocal, conical or DIY? Some engine-mount decisions are dictated by your choice of engine, but there’s more to it than that. Dave Prizio walks you through the process of mating engine to airframe.
Electronic Ignitions
As electronic ignitions become more popular, some homebuilders will want to consider making the switch (especially given the potential savings in fuel costs). Tom Wilson provides an overview of the marketplace and offers a “cost-benefit” analysis.
Build It Better: Knowing how it works
How do you reconcile a discrepancy between two gauges in your aircraft, say, a float-gauge reading and fuel-totalizer data? It helps to have a deep understanding of your systems.
Ask the DAR
How do you know when the sum of purchased parts exceeds the 51% rule? Does the data plate have to match the registration? DAR Mel Asberry answers these questions and more.
Aero ‘lectrics
Jim Weir concludes his explanation of how to make any cell phone power up a remote electrical device.
Wind Tunnel
Contrary to popular belief, the frontal area of an airplane is not the most important determinant of drag.
Lockwood Super Drifter
Throttling back to enjoy the Florida scenery, Marc Cook is reminded of the reasons he first fell in love with flying as he pilots the new Lockwood Super Drifter.
Editor’s Log
In some of the impressive projects described in this issue, and the dedication and passion of their designers and builders, Editor-in-Chief Mary Bernard finds reasons to be hopeful about the future of aviation.
What’s New
Zenith debuts the CH 650 QBK, Kuntzleman’s announces a Wingtip LED Light System, and Radial Rocket introduces Streamline Airframe Kits.
Viewfinder
Burt Rutan’s 1980s Catbird was originally designed for the CAFE Foundation fuel-efficiency competition, but Marc Cook wonders whether it might make a fine homebuilt kit aircraft today.
In Case You Missed It
Slap an Engine On It and Go Fly!
With a new Corvair engine, an old Stolp Starlet returns to the skies.
The Home Machinist
Bob Fritz is back from a long hiatus with a discussion about the difference between screws and bolts and what all of those ASME numbers mean.
Down to Earth
Amy Laboda discovers that a newly installed EFIS, six-weeks away from her RV-10 and an acute caffeine deficiency challenge her inner student.
Light Stuff
Cub look-alikes have been popular for years, and CubCrafters Sport Cub S2 SLSA holds its own against the competition. By Dave Martin.