Gyro Technic GT-VX1 (left) and GT-VX2 gyroplanes coming in for landing. (Photo: Loren D. Jones, courtesy of Gyro Technic.)

Assembling a Gyro Technic VX-2

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A pilot chases his dream of building and flying a gyroplane with help from Gyro Technic in Minnesota.
marc cook kitplanes van's

Change Is a Constant

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Marc Cook steps away again, passing KITPLANES’ reins as we invite fresh voices from the homebuilt aviation community.
subaru alternative engine

Why Alternative Engines Rarely Save Money

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You can try it, but don’t expect to come out ahead—or airborne—without a fight.
Engine plenum is a common aircraft modification

Aircraft Modification Choices

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Aftermarket mods for amateur-built aircraft are booming, but not all upgrades deliver on performance, safety or practicality.
Humberd and his daughter posing with the 750 SDXtreme.

Building the 750 SDXTREME: Part 16

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Tubeless tires, prototype gear, and cabin mods—follow the ongoing adventure of getting the highly modified 750 SDX on its feet.

Starkey’s Custom Spark Plug Adapter Lock Wrench

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Make spark plug changes easier with a custom spark plug wrench for auto plug adapters on aircraft engines.
spar marked for drilling

Errant Holes: Un-drilling, Up-drilling and Adopting

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Homebuilding has no undo key. Learn causes of drill errors, a hole‑marking prevention method, and three easy fixes when mistakes happen.
rat's nest electrical wiring

Taming the Wiring Rat’s Nest

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Learn how to avoid wiring “rats nests” in your homebuilt aircraft with proper labeling, terminals, lacing and expert tips for reliable electrical systems.
wire insulation - crimp terminals

A History of Aircraft Wiring Insulation

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Discover the evolution of aircraft wiring insulation—from rubber and cotton to nylon, PVC, and Tefzel—and learn practical tricks for wiring your homebuilt.
custom heat exchanger

Custom Heat Exchanger Fabrication

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Designing and fabricating custom radiator and intercooler systems with packaging challenges.

In Case You Missed It

Aero ‘lectrics

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Ground that plane!

uAvionix AV-30 Adds Capabilities

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Now with traffic and Wi-Fi!

Engine Theory: Basic Layout

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Engine basics and layouts-why our engines are shaped the way they are.

What’s New

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PS Engineering has introduced a new audio panel/com, Avemco creates a safety team, Comp Air offers special pricing incentives on its 6 kit, and UL Power of North America names Zenith as first OEM. Edited by Mary Bernard.