In Case You Missed It
Effect of Propeller RPM on Speed, Efficiency, Noise, and Vibration
Getting better performance from a constant-speed prop.
Editor’s Log
Mary Bernard discusses the challenges companies face when they try to improve an existing design, let alone develop a new product. The Glasair Sportsman TC is a case in point.
Firewall Forward: Oil Coolers and Oil Lines
The right oil cooler, installed correctly, can maximize your engine’s life. Of course, you’ll also need to consider crankcase breathers, oil separators, oil filters, oil lines and connections.