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Backcountry manners intact: the ULT sits on a grass strip with the turbine spun up, built on the STOL-capable Carbon Cub UL airframe. [Credit: CubCrafters]

The New Jetprop Carbon Cub

Kitplanes - 2
...a piston engine up front but CubCrafters is changing that. The Yakima, Washington, company has introduced the Carbon Cub ULT, a turbine-powered evolution of its Carbon Cub UL that trades...
Trimming composites gets the full PPE job. [Credit: Eric Stewart]

A Few of My Favorite Tools

Eric Stewart - 1
...they thread into an optional engine mount boss on the engine case. They are overkill for holding the oil cooler though. I weighed them, the pair was .95 oz. I...
The Granville Brothers Gee Bee R-6 “Q.E.D.” being serviced before the 1934 MacRobertson Air Race; Mid America Flight Museum flies a replica of this aircraft. [Credit: Wikimedia Commons]

Vintage in Review Returns to AirVenture 2026 With 90-Year-Old Flyers

Kitplanes - 0
...Liberty will perform World War II-era songs at each session, followed by an engine run of the iconic 1915 Curtiss OX-5—the first mass-produced American aircraft engine and the powerplant behind...
[All images credited to Mike Davenport]

Glasair Sportsman 2+2, Part Two

Mike Davenport - 1
...engineering naturally led to the installation of significant glass in the panel. More unusual though was the installation of the Belgian UL520 220 hp engine and a 4-blade adjustable propeller...
Coming in for a landing at Humberd’s Farm [All Images Credited to Jon Humberd]

Overcoming Setbacks on the Zenith 750SD Xtreme

Jon Humberd - 0
...your mind. Even with the multiple job duties of farming, agronomy consultation, airplane builder/engineering consulting, (and even some writing every now and then), there is one thing that is always...
Dragging it in low and slow for the STOL competition. [Credit: Andrew Robinson]

Sun ’n Fun 2026 Recap: Avionics Upgrades, Thorp Kits, and STOL Action

Andrew Robinson - 0
...that these guys have made this available. I also made it past the Viking engines booth and saw the prototype for their new twin engine offering. More about this venture...
The Classic Wittman W-10 Tailwind [Credit: LeRoy Cook]

The Midpoint Reset: Navigating the Rest of the 2026 Homebuilt Horizon

Randall Brink - 0
...all of the Sonex assets—including Sonex Aerospace and the AeroConversions engine line—and would resume operations as Sonex Aviation. Within 21 days of first contact, the deal was done, the lights...
[Credit: EAA]

Vintage in Review Returns to Oshkosh: Five Days, Five Stories, and a Living OX-5

Randall Brink - 0
...the iconic 1915 Curtiss OX-5 is fired up — an engine run that, by itself, justifies the walkover from the homebuilt camping area. This year’s slate spans roughly twenty years...
Making rare use of my drafting tools for the internal timing. [All Images Credited to Andrew Robinson]

Conquering the Magneto, Part 2

Andrew Robinson - 2
...it ran just as well a second time. The prop was removed and the engine returned to the hangar. The engine and stand were later trundled out for longer run...
[Credit: AdobeStock]

Winging It

Andrew Robinson - 1
...the cross-county back to the home airport. Smart. One bit of cooling drag that engineer-me doesn’t care for is the oil cooler at the front of the engine, as shown...
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In Case You Missed It

Error Chain

Karl Gashler - 0
Crankshaft seal blowout!

Living With RVs

Tom Wilson - 1
For the last 20 plus years any person who’s thought of building their own...

Letters

Kitplanes - 0
Fuel Flow TestsAll the engineers here at the Light Aircraft Association HQ in the...

Forgot the Safety Wire?

Vic Syracuse - 0
Brake caliper without safety wire.
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