Sikorsky S-38 Project

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Building a 55%-scale, amphibious twin-engine flying boat seems like an ambitious project, and it is. But this former WW-II B-25 commander with four homebuilt aircraft already under his belt tackled it anyway. By Rick Lindstrom.

Firewall Forward: Cowls, Baffles and Intake Air

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How to keep your engine’s carburetor or fuel-injection system breathing right.

Dyno Testing

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Dyno testing your engine before installation can be an investment in peace of mind as well as the future value of your aircraft.

Build It Better: Building a Team

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Sometimes working alone in your hangar is exactly what you want. But other times a helping hand is called for, and then it helps to know you’re part of a worldwide homebuilding community.

Ask the DAR

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When can an ELSA be used commercially? Can an E/AB aircraft be certificated without a transponder?

Completions

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Builders share their successes.

Bullish on Weight

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For Red Bull racing professionals, reducing the engine weight in their aircraft is serious business. We can learn from their experience.

Garmin’s ADS-B WX

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Garmin’s portable ADS-B receiver is a solid performer, but it does have some competition from other devices when it comes to providing traffic and weather information. By Jeff Van West.

Classic Caretaker

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Easy to build, easy to fly...and affordable too. No wonder the Fly Baby remains popular decades after the prototype debuted.

Do-It-Yourself Ejection Seat

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Adding lift to the seat allows a builder to exit his Fly Baby easily (plus it’s virtually undetectable to bystanders).

In Case You Missed It

Where Do Airplane Parts Come From?

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Building your own replacement kit parts, which is no different than scratch-building from plans, may save you money and time.

Design Process: Distribution of Lift Coefficient

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In the last few months, we have explored how planform and taper affect both...

Oshkosh Homebuilt Parking Crew

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Bringing you safely to final stop…and off again.

Effect of Propeller RPM on Speed, Efficiency, Noise, and Vibration

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Getting better performance from a constant-speed prop.