Hangar Debrief

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2 articles tagged Electrical

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  Avionics & Electrical

  AC 43.13-1B, paragraphs 11-174 to 11-179: crimped terminals, studs and the crimp tool

  The FAA's AC 43.13-1B prefers pre-insulated, crimp-type ring terminals, installed with a ratchet-type crimp tool whose crimp depth suits the wire size. No more than four terminals, or three and a bus bar, go on one stud, with the largest hole at the bottom and nothing between the tongues.

  11 Oct 2026

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  Avionics & Electrical

  AC 43.13-1B, chapter 11: the four requirements for sizing an electrical wire

  The FAA's AC 43.13-1B sets four tests for a wire: mechanical strength, voltage drop, protection by a circuit breaker or fuse, and current. On a 14-volt system the allowable drop from bus to equipment is 0.5 volt in continuous operation. Hangar Flying's wire size calculator works the sum for one circuit.

  11 Oct 2026