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A builder can’t be faulted for thinking this part, dimensioned to 64ths of an inch and .001 of a millimeter, is critical, but the precise dimensions spring from the designer setting the CAD program’s auto dimensioning resolution far too low.

Measuring: Go To Lengths To Get It Right

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Measure twice, cut once. That’s sound advice, though no guarantee you won’t measure wrong twice. Some measuring errors occur before the ruler is in hand, while interpreting plans. Other errors...
radius washer

Nuts. What to Do When Thrown a Curve

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The fillet of this extrusion prevents the nut and washer from seating properly. The right photo shows how a radius washer resolved the interference. Airplanes are compromises that fly. They...

When the Forum Finds You

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Radara Elkins, Nuvite’s Field Applications Engineer, presented a forum on polishing with NuShine II and shed light on how I can improve my own technique. For over 20 years my...

Trim Tabs—Details For Discovery

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One of my favorite parts of AirVenture is the opportunity to explore ideas and details at the granular level—details I can bring to my Onex build. You’d think the common...
When possible I pre-polish skins, like this Onex vertical tail skin, through Nuvite grade C prior to assembly. Polishing tools

Taking a Shine To 6061-T6 – Part 2

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When possible I pre-polish skins, like this Onex vertical tail skin, through Nuvite grade C prior to assembly. In Part 1 I pontificated on the pros and cons of a...
Polishing leads to a shiny airplane. Sonex in flight

Taking a Shine To 6061-T6 – Part 1

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...a Metal Illness. Next month we’ll make parts shiny. Photos: Kerry Fores, RAy Fores, Mark Schaible So, Whadda We Lookin’ At? What You’ll Need and How Much It Costs Polishing...
spar marked for drilling

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

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The undo and delete functions on computers have spoiled me. They let me write with abandon and then, when I find I’ve composed drivel and defaced a document, erase offending...
Lietzan RV-10 with the elaborate paint job

RV-10 Paint Scheme Paints a Family Story

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Photos: Kerry Fores Ernie and Jeanne Lietzan’s Van’s RV-10 is anchored to their family’s Navy and aviation history. The family’s aviation leanings were introduced by Jeanne’s father, Len Spychalla. “I...

(Almost) Wordless Workshop

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Rivet an Inspection Hole in Place. Fly cutting an inspection hole on an assembled airframe is a risky undertaking. I saw the Sonex crew use this clever technique to increase...

Where Do Airplane Parts Come From?

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The AirVenture flight line may look more like this if not for the mom-and-pop businesses that make modern kits accessible. In the last issue I spoke of nuclear certified string,...

In Case You Missed It

How Many Times Can You Drill Through the Same Finger?

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(Or how to build a Zenith CH 750 in just 11 years)

Free Flight

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There are many reasons that building your own airplane takes awhile. Columnist Paul Dye details the pitfalls of completing one seemingly simple maintenance task, which brings into focus the bigger picture.

Attaching Wingtips

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Use hinges instead of screws. By Mike Bullock.

Ask the DAR

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Night VFR in an ELSA, flying from the right seat, ELSA certification for an original design.