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Product Code:SAE ARP667
Title:Precision Motor Tachometer Generator
Issuing Committee:A-4 Aircraft Instruments Committee
Scope:This recommended practice establishes objectives for high performance control motor tachometer generators to be used with aeronautical and associated equipment in protective enclosures or completely within the shell of the aircraft so that they are subjected only to the internal climatic conditions of heat, cold, shock, vibration, and humidity. Control motor tachometer generators larger than size 23 are not covered in this document.