Electricity, aircraft drawings and weight and balance
The first three General subjects in the mechanic Airman Certification Standards (ACS): how circuits work, how to read a drawing, and how to weigh an aircraft and find its center of gravity.
Key points (4)
- Subject A lists Ohm’s, Kirchhoff’s, Watt’s, Faraday’s and Lenz’s laws among its knowledge elements (AM.I.A.K7).
- The practical skills for Subject A include measuring voltage, current and resistance and troubleshooting a circuit.
- Subject B covers using drawings to check that a repair or alteration conforms to the type design (AM.I.B.K2).
- Subject C covers arm, moment, center of gravity (CG) and how adverse loading can put an aircraft out of limits.