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.
Garmin Introduces GHA 15 “Height Advisor”
AirVenture has not yet begun yet there’s already a new-product announcement from Garmin, which introduced the GHA 15. Most pilots would know it as...
Glasair Aviation Pauses Kit Sales, Moves Production to China
Glasair Aviation moves Sportsman kit production to China; U.S. support remains for existing builders and parts.
Clattering About Diesels
DeltaHawk’s DHK180 engine has received its FAA certification. Yes, that’s the same inverted-vee, four-cylinder, two-stroke Jet A-burning diesel we’ve heard about for years. And,...
Forward by Degrees
I’ve ridden the early adopter bus before—found the seats uncomfortable, the ride jarring and the destination available only after many inconvenient stops. So it...
DeltaHawk Receives FAA Certification
The long-awaited DeltaHawk engine has received FAA certification in its 180-hp form. According to the company, “The 180 hp DHK180 is the first of...
A Whole New Sun ’n Fun
It’s not fair to call last year’s Sun ’n Fun a dud. It had, after all, come back from a COVID-related interruption in 2020...
Beware the Scammer
We don’t talk about scams a lot in Experimental aviation. Yes, there were probably a few companies in our realm we might have accused...
Zenith Aircraft Model and Factory Update from Sun ‘n Fun
We catch up with Zenith Aircraft's Sebastien Heintz on the company's plans for the year and a bit of a recap of the previous...
In Case You Missed It
Ask the DAR
Applying for a Repairman Certificate, importing Experimentals, converting an SLSA Cub to ELSA.
Wind Tunnel
This month well look at another complex interaction between aerodynamics and aircraft structures that can cause structures to fail: fabric flutter.
Cooling: Internal Flow
Cooling the engine and its accessories requires a continuous flow of air to come...