In Case You Missed It
Ask the DAR
DAR Mel Asberry clarifies what notification the FAA expects when a prop has been changed. His advice? Treat it like a major mod.
Light Stuff
After studying Experimental aircraft, the National Transportation Safety Board developed 16 recommendations. Roy Beisswenger outlines the good, the bad and the still-needed.
Morning Sickness: It’s About Sticking Valves
Although its not a new phenomenon, you may not be aware of reduced valve stem to valve guide clearance syndrome and what to do to alleviate it. By Steve Ells.
Variable Geometry Cooling System
The way to reduce or eliminate excess cooling drag in cruise is to use a variable-geometry cooling system that can change shape to control the amount of air flowing through the cowling.