In Case You Missed It
Wind Tunnel
Yaw rarely occurs without rolling, and roll rarely occurs without yawing. This month Barnaby Wainfan discusses coupled motion, including adverse yaw, the spiral mode and Dutch roll.
Straight Floats to Amphibs
Fed up with the restrictions of being able to land on water only, builder Mervin Zinck came up with a design to add retractable gear to his floats. By Don Ledger.
Slow Leak From a Quick Drain
Solving the mystery of dirty oil leaking from an engine full of clean oil.