Tag: Trainer
![[Credit: Mike Davenport]](https://www.kitplanes.com/wp-content/uploads/2026/02/DSC_0053.jpg?w=324&h=160&crop=1 "Pre-War Porterfield")
In Case You Missed It
Return of the Turbo-Compound
Everything old is new again. Paul Lamar looks at the turbo-compound engine, developed in the post-WW-II era. Thrown over for jet engines, it may yet hold promise today as we search for more energy efficient ways to get the most out of increasingly expensive fuel.
Thrust Line Effects
The propeller of an airplane generates thrust that drives it through the air. In...