Maintenance Matters: Compression Testing

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Checking a cylinder’s health.

Quick Mount for a Handheld

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Home shop machinist

Shop Tips: Undrilling a Hole in Steel

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A brass block makes it easy.

Tech Tip

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Forming a Composite Blister.

Home Shop Machinist

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Using tools to make tools. Bob Hadley.

DIY Bond Studs

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Cost-effective ways to restrain wiring and small equipment.

Aero ‘lectrics

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If you want to keep your paint and other supplies from freezing next winter, try this relay and heater (made to work in conjunction with last month’s temperature sensor project).

Aero ‘lectrics

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Next winter, keep your aviation supplies from freezing with this DIY temperature sensor.

Aero ‘lectrics

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Repairing a malfunctioning headset may be not only inexpensive, but completely doable.

Aero ‘lectrics

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Make the scene at your next airshow with a homemade aircraft band antenna, state and national flags, and an aircraft data sheet that gives spectators the vital statistics on your aircraft.

In Case You Missed It

Drilling Out Rivets.

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By Paul Dye

Build It Better: When 1+1 Does Not Equal 2

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Paul Dye explains how to achieve unlike (or dissimilar) redundancy on the various systems in your homebuilt.

Finding the Perfect Project

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The information in our Buyer's Guide is just the start. Here are some additional insights to help you make the right decision.

ATS E50A Magneto Synchronizer

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Aircraft Tool Supply made some seemingly small but useful updates to this magneto synchronizer.