north-upward plan position indicator
north-upward plan position indicator
[′nȯrth ′əp·wərd ¦plan pə¦zish·ən ′in·də‚kād·ər] (engineering)
A plan position indicator on which north is maintained at the top of the indicator, regardless of the heading of the craft.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.