R (Rainbow) class submersibles (1930) Patrol Submersibles 1929-1931: HMS Rainbow, Regulus, Regent, Rover The Rainbow-class submarine (R class) were four patrol submarines built for the Royal Navy in the early 1930s. Although six were envisioned at first, only four were completed due to budgetary reason. The class comprised the HMS Rainbow, Regulus, Rover, and Regent. … Read more
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| AA | Anti-Aircraft |
| AAW | // warfare |
| AAS | Amphibious Assault Ship |
| Adm | Admiral |
| AEW | Airbone early warning |
| AG | Air Group |
| AFV | Armored Fighting Vehicle |
| AMGB | armoured motor gunboat |
| AP | Armor Piercing |
| APC | Armored Personal Carrier |
| AS | Antisubmarine |
| ASM | Air-to-surface Missile |
| ASMD | Anti Ship Missile Defence |
| ASROC | ASW Rockets |
| ASW | Anti Submarine Warfare |
| ASWRL | ASW Rocket Launcher |
| ATW | ahead thrown weapon |
| avgas | Aviation Gasoline |
| aw | Above Waterline |
| AWACS | Airborne warning & control system |
| BB | Battleship |
| bhp | brake horsepower |
| BL | Breach-loader (gun) |
| BLR | Breach-loading, Rifled (gun) |
| BU | Broken Up |
| c | circa |
| CA | Armoured/Heavy cruiser |
| Capt. | Captain |
| Cal | Caliber or ".php" |
| CG | Missile Cruiser |
| CIC | Combat Information Center |
| C-in-C | Commander in Chief |
| CIWS | Close-in weapon system |
| CE | Compound Expansion (engine) |
| Ch | Chantiers ("Yard", FR) |
| CL | Cruiser, Light |
| cm | centimeter(s) |
| CMB | Coastal Motor Boat |
| CMS | Coastal Minesweeper |
| CNO | Chief of Naval Operations |
| Cp | Compound (armor) |
| Co | Company |
| COB | Compound Overhad Beam |
| CODAG | Combined Diesel & Gas |
| CODOG | Combined Diesel/Gas |
| COGAG | Combined Gas and Gas |
| COGOG | Combined Gas/Gas |
| comm | commissioned |
| comp | completed |
| conv | converted |
| convl | conventional |
| COSAG | Combined Steam & Gas |
| CR | Compound Reciprocating |
| CRCR | Same, connecting rod |
| CruDiv | Cruiser Division |
| CP | Controlled Pitch |
| CT | Conning Tower |
| CTL | constructive total loss |
| CTOL | Conv. Take off & landing |
| CTp | Compound Trunk |
| cu | cubic |
| Cyl | Cylinder(s) |
| CV | Aircraft Carrier |
| CVA | // Attack |
| CVE | // Escort |
| CVL | // Light |
| CVS | // ASW support |
| cwt | Hundredweight |
| DA | Direct Action |
| DASH | Drone ASW Helicopter |
| DC | Depht Charge |
| DCT | // Track |
| DCR | // Rack |
| DCT | // Thrower |
| DD | Destroyer/drydock |
| DE | Double Expansion |
| DE | Destroyer Escort |
| DDE | // Converted |
| DesRon | Destroyer Squadron |
| DF | Double Flux |
| D/F | Direction(finding) |
| DP | Dual Purpose |
| DUKW | Amphibious truck |
| DyD | Dockyard |
| EOC | Elswick Ordnance Co. |
| ECM | Electronic Warfare |
| ESM | Electronic support measure |
| F | Farenheit |
| FCS | Fire Control System |
| FF | Frigate |
| fps | Feet Per Second |
| ft | Feets |
| FY | Fiscal Year |
| gal | gallons |
| GM | Metacentric Height |
| GPMG | General Purpose Machine-gun |
| GRP | Fiberglass |
| GRT | Gross Tonnage |
| GUPPY | Greater Underwater Prop.Pow. |
| HA | High Angle |
| HC | Horizontal Compound |
| HCR | // Reciprocating |
| HCDA | // Direct Acting |
| HCDCR | // connecting rod |
| HDA | // direct acting |
| HDAC | // acting compound |
| HDAG | // acting geared |
| HDAR | // acting reciprocating |
| HDML | Harbor def. Motor Launch |
| H/F | High Frequency |
| HF/DF | // Directional Finding |
| HMS | Her Majesty Ship |
| HN | Harvey Nickel |
| HNC | Horizontal non-condensing hp |
| HP | High Pressure |
| hp | horizontal |
| HQ | Headquarter |
| HR | Horizontal reciprocating |
| HRCR | // connecting rod |
| HS | Harbor Service |
| HS(E) | Horizontal single (expansion) |
| HSET | // trunk |
| HT | Horizontal trunk |
| HTE | // expansion |
| IC | Inverted Compound |
| IDA | Inverted direct acting |
| IFF | Identification Friend or Foe |
| ihp | indicated horsepower |
| IMF | Inshore Minesweeper |
| in | Inche(s) |
| irc | ironclad |
| KC | Krupp, cemented |
| kg | Kilogram |
| KNC | // non cemented |
| km | Kilometer |
| kt(s) | Knot(s) |
| kw | kilowatt |
| ib | pound(s) |
| LA | Low Angle |
| LC | Landing Craft |
| LCA | // Assault |
| LCAC | // Air Cushion |
| LFC | // Flak (AA) |
| LCG | // Gunboat |
| LCG(L) | /// Large |
| LCG(M) | /// Medium |
| LCG(S) | /// Small |
| LCI | // Infantry |
| LCM | // Mechanized |
| LCP | // Personel |
| LCP(R) | /// Rocket |
| LCS | // Support |
| LCT | // Tanks |
| LCV | // Vehicles |
| LCVP | /// Personal |
| LCU | // Utility |
| loco | locomotive (boiler) |
| LSC | Landing ship, support |
| LSD | // Dock |
| LSF | // Fighter (direction) |
| LSM | // Medium |
| LSS | // Stern chute |
| LST | // Tank |
| LSV | // Vehicle |
| LP | low pressure |
| lwl | lenght waterline |
| m | metre(s) |
| M | Model |
| MA/SB | motor AS boat |
| max | maximum |
| MG | Machine Gun |
| MGB | Motor Gunboat |
| MLS | Minelayer/Sweeper |
| ML | Motor Launch |
| MMS | Motor Minesweper |
| MT | Military Transport |
| MTB | Motor Torpedo Boat |
| HMG | Heavy Machine Gun |
| MCM(V) | Mine countermeasure Vessel |
| min | minute(s) |
| Mk | Mark |
| ML | Muzzle loading |
| MLR | // rifled |
| MSO | Ocean Minesweeper |
| mm | millimetre |
| NC | non condensing |
| nhp | nominal horsepower |
| nm | Nautical miles |
| N° | Number |
| NBC/ABC | Nuc. Bact. Nuclear |
| NS | Nickel steel |
| NTDS | Nav.Tactical Def.System |
| NyD | Naval Yard |
| oa | Overall |
| OPV | Offshore Patrol Vessel |
| PC | Patrol Craft |
| PDMS | Point Defence Missile System |
| pdr | pounder |
| pp | perpendicular |
| psi | pounds per square inch |
| PVDS | Propelled variable-depth sonar |
| QF | Quick Fire |
| QFC | // converted |
| RAdm | Rear Admiral |
| RC | Radio-control/led |
| RCR | return connecting rod |
| rec | Rectangular |
| rev | Revolver |
| RF | Rapid Fire |
| RPC | Remote Control |
| rpg | Round per gun |
| SAM | Surface to air Missile |
| SAR | Search Air Rescue |
| sb | Smoothbore |
| SB | Ship Builder |
| SC | Sub-chaser (hunter) |
| SSBN | Ballistic Missile sub.Nuclear |
| SE | Simple Expansion |
| SET | // trunk |
| SG | Steeple-geared |
| shp | Shaft horsepower |
| SH | simple horizontal |
| SOSUS | Sound Surv. System |
| SPR | simple pressure horiz. |
| sq | square |
| SS | Submarine (Conv.) |
| SSM | Surface-surface Missile |
| sub | submerged |
| sf | steam frigate |
| SLBM | Sub.Launched Ballistic Missile |
| spf | steam paddle frigate |
| STOVL | Short Take off/landing |
| SUBROC | Sub.Fired ASW Rocket |
| t | ton, long (short in bracket) |
| TACAN | Tactical Air Nav. |
| TB | Torpedo Boat |
| TBD | // destroyer |
| TC | Torpedo carriage |
| TE | Triple expansion |
| TER | // reciprocating |
| TF | Task Force |
| TGB | Torpedo gunboat |
| TG | Task Group |
| TL | Torpedo launcher |
| TLC | // carriage |
| TNT | Trinitroluene |
| TS | Training Ship |
| TT | Torpedo Tube |
| UDT | Underwater Demolition Team |
| UHF | Ultra High Frequency |
| Vadm | Vice Admiral |
| VC | Vertical compound |
| VCE | // expansion |
| VDE | / double expansion |
| VDS | Variable Depth Sonar |
| VIC | / inverted compound |
| VLF | Very Low Frequency |
| VQL | / quadruple expansion |
| VSTOL | Vertical/short take off/landing |
| VTE | / triple expansion |
| VTOL | Vertical take off/landing |
| VSE | / Simple Expansion |
| wks | Works |
| wl | waterline |
| WT | Wireless Telegraphy |
| x | number of |
| Yd | Yard |
| GIUK | Greenland-Iceland-UK |
| BuShips | Bureau of Ships |
| DBM | German Navy League |
| GB | Great Britain |
| DNC | Directorate of Naval Construction |
| EEZ | Exclusive Economic Zone |
| FAA | Fleet Air Arm |
| FNFL | Free French Navy |
| JMSDF | Jap.Mar.Self-Def.Force |
| MDAP | Mutual Def.Assistance Prog. |
| MSA | Maritime Safety Agency |
| NATO | North Atlantic Treaty Org. |
| RAF | Royal Air Force |
| RAN | Royal Australian Navy |
| RCN | Royal Canadian Navy |
| R&D | Research & Development |
| RN | Royal Navy |
| RNZN | Royal New Zealand Navy |
| ussr | Union of Socialist Republics |
| UE/EEC | European Union/Comunity |
| UN | United Nations Org. |
| USN | United States Navy |
| WaPac | Warsaw Pact |
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