Groppo Trail

Flying the Groppo Trail

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How to say ‘mountain flying’ in Italian.
cad for the home shop

CAD for the Home Shop

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Explore how EAA members use Solid Edge and 3D printing to design, model, and build aircraft parts—affordably and efficiently with modern CAD tools.
Van’s Aircraft Chief Engineer Rian Johnson explains the RV-15 design elements to Dye before Dye’s initial flights last summer.

KITPLANES Flies the RV-15!

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Paul Dye flies the RV-15 prototype and shares first impressions of Van’s high-wing backcountry design.
cat in cargo compartment listening for strange noises

Hearing Things

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A stowaway cat reminds us: strange noises matter. Learn how to listen for sounds that can signal trouble in flight before they become real problems.
custom engine mount

Building a Custom Engine Mount

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How a custom engine mount for the SR-1 was CNC’d, stress-tested, and welded for strength, weight savings, and tight packaging.
BAC 1-11 to illustrate pitch characteristics

Build, Test, Refine and Fix—Part 5: High AoA Pitch Characteristics

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Evaluating pitch stability, stick force gradients, and pitch-up warnings in stall testing to ensure safe handling at high angles of attack.
Mini-Coupe

Chris Tena Mini-Coupe

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The VW-powered Mini-Coupe—with twin tails and all-pushrod controls—remains a standout among 1970s homebuilts.
rv-6 n the hangar

Second Chance Six

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As Oshkosh 2025 nears, Tenley rallies support and tackles critical inspection tasks to get RV-6 N2165U flying again.
Polishing leads to a shiny airplane. Sonex in flight

Taking a Shine To 6061-T6 – Part 1

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Polishing aluminum transforms gray metal into a mirror finish—cheap, timeless, and endlessly messy but deeply rewarding.

The Hummingbird Airworthiness Inspection

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A DAR walks through the paperwork and practical steps needed to get an Experimental helicopter inspected—and reflects on what it means to finally fly.

In Case You Missed It

An Aerotrek A220 perched resolutely on the grass and ready for flight. [Credit: Aerotrek]

Aerotrek

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Thirty years of value and performance in the light sport market.

Letters

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When Is an LSA Not an LSA?I always enjoy the annual compilation of aircraft...

Building the Affordaplane, Part 4

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What engine should be used in this project?

Ask the DAR

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Lost logbooks and airworthiness certificate, confusion about Light Sport Aircraft.