Marc Cook
Marc Cook is a veteran special-interest journalist who started as a staffer at AOPA Pilot in the late 1980s. Marc has built two airplanes, an Aero Designs Pulsar XP and a Glasair Aviation Sportsman, and now owns a 180-hp, recently modernized GlaStar based in western Oregon. Marc has 5000 hours spread over 200-plus types and four decades of flying.
Engine Update
Lycoming makes a push into the Light Sport Aircraft market with its new O-233 engine. Though similar in appearance to the venerable O-235, it’s an entirely new design poised to take on some heavy competition. By Marc Cook.
Capturing Air-to-Air Shots
Marc Cook reflects on the years of on-the-job lessons he learned while formation flying and shooting air-to-air photography.
Inside KITPLANES: How We Do Aerial Photography
Marc Cook explains the nuts-and-bolts of how we achieve the aerial photography that appears in the magazine, and offers a few pointers on how to capture your own plane in flight.
Idle Hands
Marc Cook reminisces about the hours of enjoyment he found working on his Glasair Sportsman.
Traveling Machine
Van's two-seat RV-12 LSA proves itself as a surprisingly travel-friendly cross-country airplane. By Marc Cook.
Expansion Team
For RV-12 owners looking for an alternative engine option, Jabiru offers a worthy contender. By Marc Cook.
Higher, Faster, Stronger
Glasair’s decision to turbocharge its Sportsman model opened up the door to additional design considerations and refinements. But getting to the desired performance has proved challenging. By Marc Cook.
Around the World Sling 4 Prototype Arrives In California, Halfway Home
On Friday, September 2, a unique airplane touched down at the Torrance, California, airport. Its pilots, looking as you’d expect a pair who have...
Viewfinder
Marc Cook spends a few days helping perform the annual on a friends RV-7A, and finds it much easier than doing his own.
Engine Update: EI Commander
EI Commander helps keep you aware of both whats happening with your engines electronic ignition and, as importantly, why. By Marc Cook.
In Case You Missed It
![A SubSonex personal jet in aerobatic flight. Thea design will expand with a two-place model kit in the months ahead. [Credit: Sonex Aircraft]](https://www.kitplanes.com/wp-content/uploads/2026/08/SubSonex_Acro.jpg?w=324&h=160&crop=1 "Sonex Reopens")
Ask the DAR
DAR Mel Asberry continues his discussion of operating limitations and Phase I flight-test requirements.
Metal Magic: A Quick Look at Edge Rolling
This short episode of Metal Magic provides some quick tips on the most effective...
