Accession Number : ADA318054

Title :   Torque Study on MK 42 Mod 3 Rear Fitting Safety Device Sector Gear.

Corporate Author : NAVAL SURFACE WARFARE CENTER DAHLGREN DIV VA

Personal Author(s) : Pomeroy, Scott M.

PDF Url : ADA318054

Report Date : SEP 1996

Pagination or Media Count : 14

Abstract : This study analyzed the torque on the sector gear of the Mk 42 Mod 3 Rear Fitting Safety Device (RFSD) used in variable time (VT) fuzes for Navy gun ammunition. The study was initiated following two proposals by the production contractor to modify the sector gear to produce increased torque and improve its reliability when used in 5-in .38 caliber gun ammunition. The study concluded that one of the proposals was unsound and the other was feasible with a little fine tuning and further analysis.

Descriptors :   *RADIO PROXIMITY FUZES, *TORQUE, *FITTINGS, *ANTITANK GUNS, ACCEPTANCE TESTS, COMPUTER AIDED DESIGN, FIRING MECHANISMS(WEAPON), NAVAL RESEARCH, ANTITANK AMMUNITION, GUN COMPONENTS, ELEVATING GEAR.

Subject Categories : Ammunition and Explosives
      Guns

Distribution Statement : APPROVED FOR PUBLIC RELEASE