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Graeme Coates

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Graeme Coates is an Australian electrical engineer who is building a tri-gear Europa (slowly!).

Alternator Mods Without Major Surgery

Another way to modify a Nippondenso alternator for use with an external voltage regulator.

In Case You Missed it

Aircraft Wiring

Electrical system overview. By Marc Ausman.

Ask the DAR

Position lights, repairman certificate and builder’s log.

Fuel Pump Replacement

I was climbing out from my home base airport in Chino, California. I noticed...

Perking up the performance of a Glasair Sportsman

Power Flow exhaust shows a measureable efficiency gain over the standard system.