Stressing Structure

Axial stresses and the stress strain diagram.

Stressing Structure

Places to save weight and places not to.

Wind Tunnel

Pitch non-linearities.

Design Process: Flap Types

Last month we took a look at the trade-offs the designer should consider when defining the flap system for the airplane. The choice comes...

Design Process: Droops and VGs

In general, there are two ways to increase the maximum lift of a wing. The first, as we have been discussing the past couple...

Wind Tunnel

Gyroplanes, part 5.

Wind Tunnel

Stiffness.

Wind Tunnel

To find the speed, lose the drag.

Fixed-pitch Props

A major advantage of a fixed-pitch prop is that it is lighter, simpler and cheaper than one with variable pitch.

Wind Tunnel

Wing root junctions.

In Case You Missed it

Learning to Weld

Ken Scott's series on welding closes with an afterword from his mentor, Philip Groelz, who explains why TIG welding is the way to go.

Editor’s Log

The free flight of birds inspired the first forays into manned flight—a perfect example of the concept of biomimicry. Editor in Chief Mary Bernard sees a similar resourcefulness in plansbuilders who look at a set of drawings and create an airplane from scratch.

Build Your Own Stall-Warning Device

Certified aircraft have had them for decades-but not Experimentals. By Michel Suire.

Staying in the Game

It’s never been easy to afford flying, and it’s getting harder. As costs continue to rise, here are innovative ways to stay in the air.