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Jim Weir

Jim Weir
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Jim Weir is the chief avioniker at RST Engineering. He answers avionics questions in the Internet newsgroup www.pilotsofamerica.com–Maintenance. His technical advisor, Cyndi Weir, got her Masters degree in English and Journalism and keeps Jim on the straight and narrow. Check out their web site at www.rst-engr.com/kitplanes for previous articles and supplements.

Aero ‘lectrics

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Jim Weir delves into the world of barrier strips, wire markers, resettable fuses, nylon connector usage, dyeing and inrush current limiters.

Aero ‘lectrics

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Jim Weir shows you how to create and install LED lights and run them from ships power inexpensively and easily.

Aero ‘lectrics

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Jim Weir continues his series on digital logic (CMOS), and makes the little logic circuits do things that their inventors never considered.

Aero ‘lectrics

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So far in Jim Weirs investigation of digital logic, hes explored small scale integration. This time, its time to ramp it up a bit and use some medium scale integration devices that will remember your settings.

Aero ‘lectrics

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The subject this month is Schmitt triggers and digital gates, which can be employed for a variety of purposes in homebuilt aircraft including use with switches and sensors or panel lighting.

Aero ‘lectrics

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If you need a horn to sound when the airspeed drops below a certain level or when the power is cut and the landing gear is still up and locked, an electronic circuitry solution is the lightest, most reliable and most cost-effective way to go.

Aero ‘lectrics

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This month, we look at how an airspeed indicator works and rig up a simple calibration tool for it;

Aero ‘lectrics

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This month we get into actually building the portable antenna that was described last month;

Aero ‘lectrics

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In this first of a two-part series, Jim Weir builds a low-cost, high-efficiency portable ground-based antenna system that he used to great effect in the recent CAFE 400 (fuel efficiency) race in Northern California. You can do it, too.

Aero ‘lectrics

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Impressed by the quality of the cheap headsets he encountered on a recent commercial airliner flight, Jim Weir dissected the airline unit and has come up with a way to replicate it in your own shop.

In Case You Missed It

Bad Mojo No Mo

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A Pitts with a story to tell–and more to make.

Center-Drill Large Holes

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Brass tubing helps keep the drill bit centered.

Sport Pilot Airplane

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Bob Fritz reviews Sport Pilot Airplane, a new book from Carol and Brian Carpenter, which covers Light Sport Aircraft from selecting an airplane to pilot and aircraft requirements, meteorology, aerodynamics, flying characteristics, transition to new aircraft and FAA paperwork; by Bob Fritz.

Challenger Enjoys a Birthday

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250 enthusiasts gathered at Erie Airpark, in Illinois, to celebrate a major milestone: The 25th anniversary of the Quad City Challenger line of aircraft. By Bryan Quickmire.