SAE AS404, revision C
Electric Tachometer: Magnetic Drag (Indicator and Generator)
Month of publication: 2001-07-01
Date reaffirmed: February 2008
Developed by committee: A-4 Aircraft Instruments Committee
Annotation and contents
Source of this annotation and contents: SAE.
To specify minimum requirements for Electric Tachometers primarily for use in reciprocating engine powered civil transport aircraft, the operation of which may subject the instruments to the environmental conditions specified in Section 3.3. This Aeronautical Standard covers magnetic drag tachometers with or without built-in synchroscopes.
