
ABBRF,VIATTOI_S AND ACRO,_fMS
ac (AC) Alternating Current H2 Hydrogen
Accel Accelorometer lle HelII_
AM Amplitude Modulation liP High Pressure
amp Ampere HOSt Huntsvil!e Operations Support
APS Auxillary Propulslcn System Center
AUTO Automatic Hr Hour
C.O. Cutoff llz Hertz (one cycle per second) •
CCN Covnterclockwlse
CCS Coanand Communication System IBM International Business Machines
CECO Center Engine Cutoff IGM Interative Guidance Mode
I
CC Center of Gravity in Inch
CIF Cmtral Instrumentation Facility IU Instrument Unit
CIU Computer Interface Unit
CM C_mmand Module J-2 S-IVB & S-ll Engines
CSM Coumbnd and Service Module
C-T Crawler Transporter
CN Clockwise KSC Kennedy Space Center
dc (DC) Direct Current Lat Lateral
DCS Digital Command System Lb_ Pounds
DDAS Disltal Data Acquisition System L_C Launch Control Center
DEE Digital Events _valuation LEg Launch Escape System
des Degree LET Launch Escape Tower
Din Diameter
LH Liquid Hydrogen
LI_F Launch Inform_tlon Exchange
EBW Rxplodtng Bridgewire Facility
ECO /jointfilesconvert/379261/bglne Cutoff LH Lunar Module
ECS Environmental Control Assembly L.O, Liftoff
EDS Emergency Detection System LOR Lunar Orbital Rendezvous
_4R F_ne Mixture Ratio LOX Liquid Oxygen
EnS Engine LV Launch Vehicle /._
Elec Electric (Electrical) LVOA Launch Vehicle Data Adapter
EP0 Earth Parkin_ Orbit LVDC Launch Vehicle _gitsl Com-
EOM End of Mission purer
ESE Electrical Support Equipment
EVA Extra Vehicular Activity Max Maximum
Max "q" Maximum dynamic pressure
F-I S_IC _ngines Mech Mechanical
FCC Flight Control Computer MCC Mission Control Center
F_ Frequency Modulation _ MDC MacDonnel Douglas Corporation ,,
Fwd Fo_ard MH_ Mesa Hertz (1 Million Hertz)
Min Minute
_A_C Grtmman Aircraft _igr. Corp. Mod Model ,.
Gal Gallon (s) Mux- Multiplexer
- GN_ Gaseous N_trogen Mist -Miscellaneous
GOX Gaseous Oxygen ML Mobile Launcher
Cpm Gallon par minute MR' Mixture Ratio
GRR Guidance Reference Release MSC Manned Spacecraft Center
GSE Ground Support Equipment MSFC Marshall Space Flight Center
' OHo Gaseot_ Helium MSFN Manned Space Flight Network
._ GUID Guidance MSS _obile Service Structure
.' j
i
1970011707-003
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