Tag: Clark Y airfoil
![The Hatz Biplane, NX71VH, re-engineered to be powered by a 124 hp radial engine. [Credit: Hatz Biplane Association]](https://www.kitplanes.com/wp-content/uploads/2026/09/Hatz-Bantam-Radial-124hp_1000004521-Topaz-Gigapixel-2x-scale.jpg?w=324&h=160&crop=1 "Airplane Almost No One Knows, Part One"){kind=tracking}
In Case You Missed It
Evaluating a Used Engine
How do you decide, without taking an engine completely apart, whether or not it will give you at least several years of good service?
Highly Evolved
The Lancair Turbine Evolution might be the ultimate Experimental kit aircraft. By Doug Rozendaal.
It Got Very Quiet!
"OK, so the engine just quit!" I said, in as calm a voice as I could muster as I keyed the mic.