Design and Development of the 81 mm Mortar Cartridge Signal, Underwater Sound (MCSUS), XN-1.

reportActive / Technical Report | Accession Number: ADA055974 | Open PDF

Abstract:

This report describes a mortar fired, underwater ordnance item, the 81 mm Mortar Cartridge Signal, Underwater Sound MCSUS, XN-1. The signal consists of a hydroadiabatic fuze adapted to an inert loaded, 81 mm Mortar Cartridge, M374. This fuze has no moving parts and incorporates a new type of firing train that does not contain primary explosive. The signal is propelled from a ship-mounted Mortar, Mk 2 Mod 0, to enter the water at selectable horizontal ranges up to 4932 yards 4500 meters. It then rapidly descends to a depth of 1000 feet 305 meters and detonates a 1-ounce 28-gram explosive charge. The acoustic output is used to measure deviations from linearity of long, ship-towed hydrophone arrays. Author

Author(s):
Johnson, Robert M.
Author Organization(s):
NAVAL WEAPONS STATION YORKTOWN VA
Descriptive Note:
Final rept.,
Pagination:
0017

Security Markings

DOCUMENT & CONTEXTUAL SUMMARY

Distribution:
Approved For Public Release

RECORD

Collection: TR
Identifying Numbers
Report Number(s):
NWSY-TR-78-2
 Subject Terms
Joint Capability Areas:
JCA_3.2_Engagement; JCA_3_Force Application; JCA_3.2.1_Kinetic Means; JCA_5_Command and Control; JCA_1_Force Support; JCA_1.2_Force Preparation; JCA_4_Logistics; JCA_5.2_Understand; JCA_1.2.2_Exercising; JCA_5.3_Planning; JCA_6_Net Centric; JCA_1.2.1_Training
Communities of Interest:
Weapons Technologies
Descriptor(s):
*UNDERWATER SOUND SIGNALS, *CARTRIDGES, EXPLOSIVE CHARGES, MORTAR AMMUNITION, UNDERWATER EXPLOSIONS, UNDERWATER ACOUSTICS, EXPLOSIVE TRAINS, HYDROSTATIC FUZES, UNDERWATER ORDNANCE
Field(s)/Group(s):
Ammunition and Explosives, Acoustics
Keyword(s):
XN 1 mortar cartridge signal, EX 2 fuzes
Report Date:
1978 Mar 01