In Case You Missed It
Engine Update
Lycoming makes a push into the Light Sport Aircraft market with its new O-233 engine. Though similar in appearance to the venerable O-235, it’s an entirely new design poised to take on some heavy competition. By Marc Cook.
![[Credit: AdobeStock]](https://www.kitplanes.com/wp-content/uploads/2026/03/AdobeStock_176619176.jpg?w=324&h=160&crop=1 "Instructional Inflexibility")
Ask the DAR
Registering without builders logs, adjustable prop on an LSA, incorrect N-number placement, repairman certificate for a rebuilt RV-6.
Alternative Energies
Diesel engines, anyone? How about biofuel? More builders are turning to such alternatives in the name of fuel economy, while the industry awaits fuel cells and better batteries. By Dean Sigler.