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Barnaby Wainfan

Barnaby Wainfan
199 POSTS 1 COMMENTS
Barnaby is a Technical Fellow for Northrop Grumman’s Advanced Design organization. A private pilot with single-engine and glider ratings, Barnaby has been involved in the design of unconventional airplanes including canards, joined wings, flying wings and some too strange to fall into any known category.

Design Innovation

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A designer must make a large number of decisions in the process of designing an airplane. These range from top-level decisions, like the overall...

Secondary Flows

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Cooling within the engine compartment—oil and accessories.

Variable Geometry Cooling System

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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.

Cooling Outlet Design

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The design must focus on sufficiently cooling the engine while minimizing drag.

Cooling: Internal Flow

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Cooling the engine and its accessories requires a continuous flow of air to come in from outside the airplane to absorb heat from the...

Cooling Inlets, Part 2

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As we saw last month, an ideal cooling air inlet system should ingest air from the free stream and bring it to rest or...

Cooling Inlets

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The cooling air inlet serves two functions: First, and most important, the inlet must ingest enough air to properly cool the engine and accessories...

Cooling

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As we saw in last month’s edition of Wind Tunnel, only about one-third of the energy released by burning the fuel in an internal...

Power and Heat

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The cooling system is a major component of the airplane. It has a large impact on the performance and reliability of the machine. The...

Prop Blade Effects

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We often treat the propeller as a uniform “actuator disc” and the slipstream as a uniform stream tube of accelerated and swirling air. While...

In Case You Missed it

Build It Better: Learning from History

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Everything we know about aviation comes from the experience of designers, builders and pilots who came before us. Understanding their successes and failures can help us fly and build more safely.

Tech-Built Skyotë

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John Roberts used modern CAD technology to update an old-school design.

Second Chance Six

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Fuel tanks are done! Now what?

Understanding the Scope of Your Operating Limitations

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DAR Mel Asberry clarifies the confusion: Is a homebuilt owner bound by someone elses operating limitations?