Light Stuff

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Dave Martin looks at the future of ultralight-like SLSA trainers, and what may be in store from the FAA.

Letters

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Compound Modifier Yes, the turbo-compound engine written about by Paul Lamar does make a good deal of sense. It is no more...

Kit Stuff

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Drawing on experience; by cartoonist Robrucha.

The Independence Project: Avionics

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It’s time to install the shiny, expensive boxes in the RV-12. Yes, the avionics package goes in… and it’s not as difficult as it used to be. By Dave Martin.

Build a Bear: Mellow Yellow

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Dave Prizio and team build a paint booth (too small), test drive charcoal masks and bunny suits, and discover the joys of covering your homebuilt plane with $400 per gallon paint.

Completions

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Builders share their successes.

Hose Protection

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Ishmael Fuentes shows you how to protect and cool the hoses in your engine compartment by making a firesleeve.

Aero ‘lectrics

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Heat and avionics don't get along all that well. Rather than installing a fan that runs all the time, Jim Weir suggests building and using a fan that runs only when you need it.

Combating Carb Ice

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Barnaby Wainfan examines a sneaky and sometimes little understood cause of in-flight scares and engine failures: carb ice.

Flight Review: Jabiru J230 Light Sport

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Marc Cook flies the nimble, LSA-compliant Jabiru J230, and finds the two-seater offers a smooth ride with a decidedly Outback attitude.

In Case You Missed It

Nothing New

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Apparently having done something evil in a former life, I’ve been consigned to toil...

Measuring Curved Surfaces

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Use sewing tape.

Wind Tunnel

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The author discusses the theory and effect of constant-speed propellers on piston-engine airplane performance, and compares fixed-pitch versus constant-speed props, effect on thrust HP and propulsion, the comprises involved in choosing a prop, how props perform in various conditions and phases of flight, how variable-pitch props work, and why a constant-speed prop is the best choice for high-performance aircraft.

Testing, Testing!

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Part 3: Testing components and assemblies.