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Designer's Notebook

Design Process: Flaps

Flaps change the geometry of the wing to allow the pilot to change the aerodynamic characteristics of the airplane to match the needs of...

Laminar- vs. Turbulent-Flow Airfoils

Airfoils break down into two general classes based on the behavior of the boundary layer.

Design Process: Airfoils

Once the size and planform of the wing have been determined, it’s time to choose (or design) the airfoil.

Design Process: Stall and Roll Damping

Last time we took a look at the effect of twisting the wing. Wing twist is used to adjust both the spanwise distribution of...

Design Process: Twist Effects

For the last few months, we have been looking at how the planform affects both the distribution of lift and the distribution of lift...

Design Process: Distribution of Lift Coefficient

In the last few months, we have explored how planform and taper affect both the distribution of total lift across the span and the...

Design Process: Planform Effects on Structure and Weight

Last month we took a look at how the planform of the wing affects the spanwise distribution of lift along the wing. The shape...

Design Process: Planform Effects on Span Loading and Drag

Last month we started our discussion of wing planforms with a look at the various planform shapes in use. We now turn our attention...

Design Process: Planform Shape

Last month we took a look at the effects of span and aspect ratio. At this point on the design of the wing, we...

Design Process: Span and Aspect Ratio

At this point in the design process we have determined the wing area. The choice of high- versus low-wing and structural concept of the...

In Case You Missed it

Experimotive

Bud Warrens Geared Drives has entered the firewall-forward business with promising results thanks to a new PSRU. By Rick Lindstrom.

Checkpoints

Sun n Fun musings and more.

Unairworthy

Loose alternate air door.

From the Inside Out

In an attempt to build a two-place LSA, one would-be builder starts with the seat. By John Mackay.