MIL-HDBK-162A
Volume 1
15 December 1965
Section 2
DATE: 1 July 1964
ITEM NAME: INDICATOR GROUP
COGNIZANT SERVICE: USAF
TYPE: AN/A PR-81
FEDERAL STOCK NUMBER:
USA
USN
USAF
USMC
STATUS OR TYPE CLASSIFICATION
Alt Std
Mfg(s) Name or Code Number:
appropriate IFF equipment, is primarily intended for use
FUNCTIONAL DESCRIPTION
as a radar navigation aid. In this function it provides a
ground positioned PPI display with a predetermined
The AN/APA-81 is a remote PPI indicator
ground point at the center. The ground-positioned
equipment for use with Radar Set AN/APS-20A or the
display can be locally slewed at Range-Azimuth
AN/APS-20C.
Indicator IP-67/APA-81
The AN/APA-81 when used with Radar Set AN/APS-
20A, Ground Position Indicator AN/APA-57, and
AN/APA-81: 1