O-290G case with the nose machined for flight use. The mounting lugs were not “countersunk” for conical bushings on this engine. Look for a later article on making the engine mounts.

A D For Effort

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LYCOMING O-290G REBUILD PART 1

Aircraft Welding Methods for Homebuilders

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The choice of welding method for your homebuilt aircraft's steel tube fuselage represents one of the most critical decisions in your building journey. Each...

The “Rope A Dope” Trick To Avoid Replacing Cylinders

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It’s never a good sign when during your aircraft annual inspection the mechanic calls to report an issue. It’s sort of like getting a...
Baffle duct on Lycoming Thunderbolt 36 engine

Make a Custom Baffle Duct

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Fiberglass your way to a perfect shape.
Drill Guide

Companion DIY Drill Guide

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Build a simple aluminum jig to drill AN bolt threads for safety wiring—perfect for when your hardware bin is missing just one critical part.
radius washer

Nuts. What to Do When Thrown a Curve

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When fasteners crowd a radius or bend, radius washers, blocks, or spot facing can solve the problem—without compromising strength or workmanship.
Aircraft Jacking Solutions

All Jacked Up

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Aircraft Jacking Solutions introduces ease and stability to lifting an airplane
case parting plates

Case Parting Plates

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A low-cost, effective method for separating stubborn Lycoming O-290 case halves using homemade parting plates and basic hardware.
Stainless Steel Fuel Lines

Fabricating Stainless Steel Fuel Lines

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Hands-on techniques for reliable stainless fuel lines
When possible I pre-polish skins, like this Onex vertical tail skin, through Nuvite grade C prior to assembly. Polishing tools

Taking a Shine To 6061-T6 – Part 2

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Cutting the initial shine with NuShine II F9 is key to a polished finish. Here's how to master the pad, pressure, speed, and polish for gleaming results.

In Case You Missed It

Editor’s Log

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Whats he gonna do next?

Letters

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 Bivalve Solution?Studying your article on fuel systems “Keep it simple. Keep it safe.” ,...

Ask the DAR

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LSA weight increase, compass requirements, gyroplane DARs, E/A-B inspector eligibility.

For Evie

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Early in my build project, I found the absolute perfect number.