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David Paule

David Paule
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David Paule retired after 30 years of structural analysis and is now building an RV-3B to keep from getting bored. The structural engineering included a mix of aircraft and spacecraft. He has been a private pilot since age 18 and currently owns and flies a Cessna 180.

Close Flanges

What to do when you need to install a rivet, but an unrelated flange is in the way.

Vacuuming Connectors

Vacuum electrical connectors before installation to avoid difficult troubleshooting later.

Square Ends on Round Tubes

Make your cuts square on round tubes.

Magnet Clamps

Use magnets to clamp parts.

Worktable Suggestions

Tips for a smooth tabletop.

Marking to Make a Planar Cut on a Curved Shape

Laser torpedo level makes the task easier.

Clamp Stick

By David Paule

Stressing Structure

Beam column bending.

Stressing Structure

Crashworthy design overview.

Measuring Curved Surfaces

Use sewing tape.

In Case You Missed it

Unairworthy: Missing Safety Wire

Some bolts have drilled heads for a reason: They are supposed to be safety...

RANS S-19

When new aircraft from two very different designers, in this case Randy Schlitter and Richard VanGrunsven, surface with considerable similarities, consensus about basic design tenets must be blowing in the wind. Certainly Light Sport regs do constrain performance considerations, but human factors are more up for grabs, and thats where one or another design can truly shine; by Marc Cook.

Design Process: Planform Effects on Span Loading and Drag

Last month we started our discussion of wing planforms with a look at the...

Contributors

RON ALEXANDERRon Alexander has been part of the homebuilding scene for decades. He began...