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Barnaby Wainfan

Barnaby Wainfan
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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 Process: Vertical Tail Functions–Yaw Stability and Damping

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The vertical tail performs multiple tasks to stabilize and control the airplane. This month we will explore what the vertical tail contributes to the...

Design Process: All-Moving Tails

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A conventional horizontal tail has a fixed horizontal stabilizer with an elevator hinged to it to provide pitch control. The “fixed” portion of the...
trim tab

Design Process: Pitch Force Trim

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For an airplane to maintain steady-state level flight it must be trimmed in pitch. The airplane is trimmed when the net pitching moment acting...

Design Process: Tail Trim Functions

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In addition to stabilizing the airplane in pitch, the horizontal tail must also trim the airplane. In steady-state level flight, the airplane flies at...

Design Process: Horizontal Tail

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The horizontal tail has two functions. It provides control power to trim and maneuver the airplane in pitch, and it stabilizes the airplane about...

Design Process: Tail Surfaces

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The tail of the airplane performs three functions: It stabilizes the aircraft in both pitch and yaw. It provides trim. It provides control power...

Design Process: End Plates and Winglets

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A wing produces a pressure difference between its upper and lower surface. The pressure on top of the wing is lower than the pressure...

Design Process: Wingtips

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In our study of wing design, we have progressed from the inner portion and the flaps to the outer part of the span and...

Design Process: Aileron Types

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The size and planform of the ailerons are set by the roll-control power needed to meet flying qualities and maneuvering requirements. Once the designer...

Design Process: Ailerons

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Last month we looked at roll control schemes for airplanes where high lift or other requirements do not leave enough room on the wing’s...

In Case You Missed It

Do ADs Apply to Homebuilts? (Part 236)

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Last month Kerry Fores’ provocatively titled column, “No One Is Watching” (Building Time, March...

Down to Earth

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Making wave work for you. By Amy Laboda.

Archive: October 2000

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Our October 2000 issue featured the Stolp Starduster Too, a huge section on readers...
The Superior IO-360 engine stripped and ready for cylinder removal. Note that oil return lines are capped as are the intake tubes in the sump. Until the decision has been made to completely tear down the engine it is best to protect everything as you go.

Maintenance Matters: Engine Overhaul Part I

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Evaluation and Removal.