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Barnaby Wainfan

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Barnaby Wainfan is a principal aerodynamics engineer 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.

Wind Tunnel

Barnaby Wainfan explores the optimum size of a wing and the best ways to balance performance and efficiency.

Wind Tunnel

Tail stalls have been in the news lately-Barnaby Wainfan dissects this phenomenon, and clarifies what to do and what not to do.

Wind Tunnel

Accelerate, pull and fly-thats not all there is to the takeoff. Barnaby Wainfan takes a second-by-second look at the aerodynamics of the takeoff: when it works, and when it doesn't.

Wind Tunnel

Recently, there has been increasing interest in the efficiency of all vehicles, including airplanes. Designers are seeking to make airplanes that perform better and burn less fuel. Barnaby Wainfan takes a close look at the aerodynamics and mathematics behind this deceptively complex process.

Wind Tunnel

Aerodynamics Engineer Barnaby Wainfan dissects one of the most common and possibly least understood flight maneuvers: turns.

Flying Qualities and the Horizontal Tail

An airplane's horizontal tail is critical to stabilizing the airplane in pitch, trimming out pitching moments caused by the wing and providing control power for maneuverability.

Wind Tunnel

Multiple engines complicate design, because not only must the airplane be able to maintain flight on one engine, but also the pilot must be able to control it. Lateral/directional stability issues are key;

Wind Tunnel

In order to bank the airplane and execute a turn properly, adverse yaw must be countered or eliminate altogether. The discussion of how to do this includes rudder control, aileron-rudder interconnects, directional stability, differential ailerons, aileron drag and the use of spoilers;

Wind Tunnel

The aerodynamics of an airplane sometimes don't cooperate with the pilots desire to roll, and instead produce both yaw and roll. Contributing factors are aileron parasite drag, induced drag between the wings and changes in the roll rate itself;

Wind Tunnel

Yaw rarely occurs without rolling, and roll rarely occurs without yawing. This month Barnaby Wainfan discusses coupled motion, including adverse yaw, the spiral mode and Dutch roll.

In Case You Missed it

The Dawn Patrol

When the chainsaw starters they'd been using on their airplanes for years finally started to give out, Dawn Patrol members searched for a replacement. It turned up in a garden tractor.

Evaluating a Used Engine

How do you decide, without taking an engine completely apart, whether or not it will give you at least several years of good service?

Designer Spotlight: Lawrence B. Sperry

Amy Laboda takes a look at the life of inventor Lawrence Sperry, whose childhood fascination with a spinning top led to his development of critical flight control systems...and even the aircraft seat belt.

Horizontal Stabilizer Crack

In 2014 Van’s Aircraft put out a service bulletin for potential cracking in the...