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Norm Ellis

Norm Ellis
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Sizing an Avionics Cooling Fan

How much is enough?

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.

Stainless Steel

Author Norm Ellis is not a particular fan of stainless-steel, even though he knows it has its place-even if that place is not in your airplane. After providing a brief history of this widely used material, he makes a case for choosing the right stock for the right project on the basis of utility rather than beauty-and he offers the stats to back up his assertions.

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

Editor’s Log

The free flight of birds inspired the first forays into manned flight—a perfect example of the concept of biomimicry. Editor in Chief Mary Bernard sees a similar resourcefulness in plansbuilders who look at a set of drawings and create an airplane from scratch.

ACT III

With numerous world records in his pocket, Bruce Bohannon is trying to figure out his next trick.Holder of 30 world speed and altitude records, Flyin Tiger pilot Bruce Bohannon has even higher aspirations for his one-of-a-kind plane: a place in the Smithsonian Air and Space Museum. Amy Laboda spent some quality time with Bohannon talking about the technology and the team behind Flyin Tiger, emergency training instruction, and looking ahead to his next goal.

Design Process: Slots and Slats

Opening a properly shaped slot between the lower and upper surface of the wing...

Aithre Illyrian Smart Pulse Oximeter

For full-time SpO2 monitoring, stick the Illyrian under the headset and let the app do the rest.