Description / Abstract:
SCOPE:
Types:
This AS covers Vertical Velocity Instruments which display the rate of
change of pressure altitude
of an aircraft, as follows:
Type A - Direct reading, self-contained, pressure actuated
Type B - Electrically or electronically operated, self-contained,
pressure actuated
Type C - Electrically or electronically operated, input from a remote
pressure sensor
Range:
The range of operation of the instrument and the altitude range when
applicable shall be as marked
on the instrument face or nameplate.
Purpose:
This SAE Aerospace Standard (AS) establishes the minimum performance
standards for vertical
velocity instruments for aircraft use.