In Case You Missed It
Alternative Energies
The Grand Unified Airplane: Is it possible to extract energy from the act of flight itself? By Dean Sigler.
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.
Releasable Piano Hinge Pin Retainer
There are lots of creative ways that builders have devised for retaining piano hinge...