Description / Abstract:
1. SCOPE:
This AS covers subsonic and supersonic Mach meter instruments which,
when connected to sources of static (Ps), and total (Pt), or impact
(Pt-Ps), pressure provide indication of Mach number. These instruments
are known as Type A. This AS also covers servo-operated repeater or
digital display instruments which indicate Mach number when connected
to the appropriate electrical output of a Mach transducer of Air Data
Computer. These instruments are known as Type B.
1.1 Purpose:
This Aerospace Standard (AS) specifies the minimum safe performance
standards for Mach Meter instruments primarily intended for use in
aircraft under standard and environmental conditions.