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...

Design Process: Cantilever Wings

Last month we began our discussion of the structural layout of the wing with a look at externally braced wings. We now turn our...

In Case You Missed it

How Complete?

Different manufacturers have different ideas about what makes a kit complete.

Letters

Trim TabsBarnaby Wainfan's recent article about trim tabs advised having enough stiffness in...

Build a Bear: Moving Right Along

It’s starting to look like a Sport Cub. Dave Prizio gets to work on the systems and finishes the wings.

Wind Tunnel

Design process, part 4-more about speed.