Norm Ellis
Cool Runnings
Norm Ellis does the math and shows you how to select the right oil cooler for your engine-cooling package. Given the critical role oil temperature plays in engine health, its a good idea to go beyond selecting the smallest, lightest and cheapest cooler you can find.
Unusual Attitude: GPS and Reality
While he admires and uses them, author Norm Ellis laments the lack of user-friendliness in todays GPS units. Editor Marc Cook counters that argument and extols the virtues of GPSes, complications or no, and their value in the cockpit.
In Case You Missed It
Wind Tunnel
The author discusses the theory and effect of constant-speed propellers on piston-engine airplane performance, and compares fixed-pitch versus constant-speed props, effect on thrust HP and propulsion, the comprises involved in choosing a prop, how props perform in various conditions and phases of flight, how variable-pitch props work, and why a constant-speed prop is the best choice for high-performance aircraft.
