MIL-PRF-89023, PERFORMANCE SPECIFICATION: DIGITAL NAUTICAL CHART (19 DEC 1997)

MIL-PRF-89023, PERFORMANCE SPECIFICATION: DIGITAL NAUTICAL CHART (19 DEC 1997)., This specification defines the content and format for the U.S. National Imagery and Mapping Agency (NIMA) Digital Nautical Chart (DNC) product. The DNC is a vector-based digital product that portrays selected maritime significant physical features in a format suitable for computerized marine navigation.