Engine Update

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UL Power engines have gained popularity in the homebuilt community in recent years. Marc Cook takes a closer look at the Belgian-made line and the people behind it.

Simplicity

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Countless modifications for homebuilts are available, but does that mean they're right for our projects? Paul Dye discusses the value of keeping things simple.

Switch Blade

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Weighing just 11 pounds for a hub and three blades, the new carbon-fiber prop from Whirl Wind Propellers improves the performance in both climb and cruise on a RANS S-7.

Firewall Forward: Choosing a Prop for Your Project

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Wood or composite? Constant speed or fixed pitch? The choice of propeller should be made just as carefully as the choice of an engine. Dave Prizio outlines some of the important factors to consider.

Unusual Attitude

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If you want to install an alternative engine in your aircraft, make sure you've thought through the issues of weight, thrust line, cooling and cowling.

Build It Better: Where’s Your Margin?

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How can you give yourself that margin of safety that you hope you'll never need?

Cable Classroom

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Most homebuilt aircraft use control cables, so it's helpful to understand how to select, install and maintain them.

Completions

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Builders share their successes.

Down to Earth

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Many homebuilders understand their kits as just a starting point for their own preferred modifications.

Anatomy of a Modification

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Paul Dye takes readers through a rework of his RV-3's fuel system to illustrate why some mods are a sound choice.

In Case You Missed it

Temperature Sensor Restoration

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Home Shop Machinist

eBay Biplane

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“Around 2006, I was on eBay quite a bit,” said Doug Eastman of Thornton,...

Highly Evolved

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The Lancair Turbine Evolution might be the ultimate Experimental kit aircraft. By Doug Rozendaal.

What’s New

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Zeniths CH 750 kit is NKET compliant, Sportys launches new E6B app for iPhone and Inogens bottleless oxygen system. Edited by Mary Bernard.