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AS404C - Electric Tachometer: Magnetic Drag (Indicator and Generator)

Details
Document Number: AS404C
Revision Number: C
Title
Electric Tachometer: Magnetic Drag (Indicator and Generator)
Scope
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.
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