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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

Kit Stuff

Drawing on experience; by cartoonist Robrucha.

Home Shop Machinist

Basic mold making.

Build Your Skills: Fabric

Everyone could use a little sunscreen, and the fabric on a fabric-covered aircraft is no exception. This months installment, the last in the series, discusses pre-paint protection to minimize sun damage. By Ron Alexander.

Stressing Structure

Axial stresses and the stress strain diagram.