. "Appendix D Acronyms and Abbreviations." An Assessment of Undersea Weapons Science and Technology. Washington, DC: The National Academies Press, 2000.
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An Assessment of Undersea Weapons Science and Technology
HWT
heavyweight torpedo
IMU
inertial measurement unit
INS
inertial navigation system
IOC
initial operating capability
IRAD
independent research and development
LELFAS
low-endurance low-frequency active surveillance
LHT
lightweight torpedo
LPI
low probability of intercept
LRIP
low rate initial production
LWT
lightweight hybrid torpedo
MEM
microelectromechanical
MODS
modifications
MSII
milestone two
NETSAT
networked sensors and torpedoes
NRC
National Research Council
NSWC/CD
Naval Surface Warfare Center, Carderock Division
NSWC/IH
Naval Surface Warfare Center, Indian Head
NUWC
Naval Undersea Warfare Center
OEG
Operations Evaluation Group
O&MN
operations and maintenance, Navy
ONR
Office of Naval Research
OSD
Office of the Secretary of Defense
OTIIB
part “B” of the operational evaluation (conducted prior to the Milestone III decision)