Special Features
Power 115 vac, 400 hz, single phase; integral 5 vac lighting; dial diameter 2.750 inches; housed in standard ms33556 instrument case; each revolution of pointer means 1000 feet of altitude change; hundreds of feet read from vertical drum; thousands of feet read from 2 counters
Description
8.500 inches nominal overall length.
Overall Width
3.250 inches
Scale Quantity
3
Scale Name
Altitude
Pointer Quantity
1
Pointer Finish
Nonluminous
Scale Marking And Surface Finish
Numerals nonluminous
Knob Quantity
2
Knob Purpose
Set barometric pressure counters; turn servo system off or reset servo system
Scale Range
Range -1000 to +80, 000 feet
Scale Smallest Increment Graduation
50 feet
Part Name Assigned By Controlling Agency
Altimeter, servoed, counter-drum-pointer
Functional Description
A servoed altimeter with automatic pressure standby feature with a range from -1000 to +80, 000 feet; barometric altitude data is transferred via synchro outputs to the altimeter servo mechanism which in turn drives the counter-drum-pointer display mechanism; the unit provides the pilot with visual indication of the altitude being transmitted to ground stations
