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Barnaby Wainfan

Barnaby Wainfan
198 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.

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...

Torque and P-factor

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We’ve touched on this during previous discussions of slipstream (most recently in the April 2023 issue), but there are several power and propeller effects...

In Case You Missed it

Aero ‘lectrics

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Cool it, brother.

Firewall Forward: Engine Controls

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Here's what you need to know to get your engine controls—propeller, throttle, mixture, carburetor heat, cabin heat—placed correctly and working properly.

Fabric, Demystified and Non-Toxic

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Marc Cook takes part in a three-day, fabric-covering course offered by Stewart Systems, learns about the company's water-based product line, and picks up a few pointers along the way.

Ray Stits Remembered

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Designer of 15 Experimentals, inventor of the Poly-Fiber covering system, and founder of EAA Chapter 1, he was an aviation ambassador for all. By Amy Laboda.