Description / Abstract:
This SAE Aerospace Standard (AS) covers tachometer instruments
(RPM indicator, 0-110 percent RPM and 0-120 percent RPM indicators
and generator) for remote indication of engine speed.
Purpose:
This AS establishes the essential minimum safe performance
standards for Tachometer Instruments primarily for use on
turbine-powered subsonic transport aircraft, the operation of which
may subject the instruments to the environmental conditions
specified in Section 3.3.