navigation acronyms, abbreviations and definitions - International ...

RME range measurement equation
RMES root mean error Square
RMI radio magnetic indicator
RMRS Russian Maritime Register of Shipping
rms root mean square (error)
The variability of a measurment such as a single LOP in one dimension;
with no bias also an estimate of the standard deviation of the errors.
rmse root mean square error (see rms)
RMT National Union of Rail, Maritime and Transport Workers (UK)
RMU radio management unit
RNAS Royal Naval Air Station
RNAV area navigation
A method of navigation which permits aircraft operation on any
desired flight path within the coverage of station-referenced
navigation aids, or within the limits of the capability of a selfcontained
navigation system, or a combination of these.
RNC raster navigational chart
RNEU Radio Navigation Experimentation Unit (ESA)
rng range
RNLI Royal National Lifeboat Institution
RNN RadioNavigeringsNamnden (Swedish Radio Navigation Board)
Formed in 1950 with ~ 20 governmnent, institutional and commercial
members. Applied for EUGIN membership 2003.
RNP radionavigation plan
RNP required navigation(al) performance
A statement of navigational performance necessary for operation
under specified conditions. Covers accuracy, availability, integrity and
continuity of service. RNP-X (X = 95% prob accuracy in NM).
RNP Required Navigation(al) Performance Study Group (ICAO)
RNS RadioNavigation Service (of allocated spectrum bands)
RNS relative navigation system
RNSS RadioNavigation Satellite Service
ROB remain on board
ROC rate-of-climb
ROC required obstacle clearance (eg TAWS)
ROC Restricted Operator Certificate (GMDSS)
ROHS Restriction of Hazardous Substances (EC Directive)
ROM read-only memory
ROMANSE Road Management System for Europe (EU)
ROP responsible operator position (in SAR)
RoPax As RoRo ferry but with 12+ pax and treated as a passenger vessel
ROPME Regional Organisation for the Protection of the Marine Environment
RoRo Roll-on, roll-off ferry (