Tag: from certified to experimental.
![The 160 hp turbocharged Rotax 916iS is a four-stroke piston engine with redundant electronic fuel injection and ignition. [Credit: BPR Rotax]](https://www.kitplanes.com/wp-content/uploads/2026/05/PIC_916-iS_iSc-2.jpg?w=324&h=160&crop=1 "2026 Engine Buyer’s Guide")
In Case You Missed It
Speed Is in the Air
Air racing at Reno is part iron-age anachronism but also leading-edge development of the...
Aero ‘lectrics
Jim Weir presses the venerable LM317 variable voltage regulator (plus a few other parts) into service as a way to juice up a discharged battery.
2013 Plansbuilt Aircraft Buyer’s Guide
There are developments in the world of plansbuilt designs. Here’s what’s new, what’s old (but still going strong, such as the Pietenpol Air Camper) and what’s on the horizon. By Mary Bernard.