`O` LOCATIONS

O.
OAHU, COASTAL DEFENCE GUN TURRETS FORT 64:

OAKHAMPTON DEVON P/B SX 5919 9441 FSG.DB:
OAKHAMPTON DEVON ROC POST SX 539- 939- FSG.DB:
OAKHAMPTON R.A.CAMP AT.SEE LIST IN FILE I (1893):

OAKINGTON, RAF.SEE PILLBOXES:
BOMBER AIRFIELD OPENED 1940:

OAKLANDS SOMERSET P/B. ST 338- 089-. FSG.DB:

OAKLEY, BUCKS. RAF BOMBER AIRFIELD OPENED 1942 CLOSED 1945:

OAKLEY CREEK MAGAZINES.P.COBB, FILE U:
SEE LITTLE OAKLEY & BRAMBLE ISLAND:

OATLANDS HILL WWILTSHIRE AIRFIELD SU 095- 408- FSG DB:

OAK STREET, KENT. AA SITE. SEE SKETCH PLAN FILE AA:

OBAN. WAS A UKWMO GROUP HQ SHUT DOWN IN 1973. 1973-92 WAS A STANDBY COMMUNICATIONS CENTRE. SEE FILE O:

OBAN, MINEFIELD CONTROL TOWER WW2. NM 828273. SEE FILE O, PICTURE OF THE OBSERVATION PLATFORM:

OBERKIRCH CASTLE, GERMANY SEE REAR OF PICTURE FOR PFALZ CASTLE FILE P:

OBERSALZBERG. SEE BERCHTESGADEN:

OCRACOKE, FORT.NORTH CAROLINA, U.S.A. SEE LIST IN FILE I (1861):

ODER-WARTHE-BOGEN STOP LINE CASEMATE 58:
FORT 34:

ODIHAM, HAMPSHIRE. UNUSUAL PILLBOXES AT SU 730508. LOOPHOLES No 43:

OGILVIE, FORT. 6" BL MK VII. CASEMATE 70:

OHRDRUF:
THIS MAPPED TUNNEL SYSTEM IS ABOUT 1.5 MILES IN LENGTH. IT WAS CONSTRUCTED BY APPROXIMATELY 15-18,000 INMATES OF THE NEARBY CONCENTRATION CAMPS OHRDRUF , ESPENFELD & CRAWINKEL, FROM THE AUTUMN OF 1944 TO THE SPRING OF 1945.
OHRDRUF WAS REACHED BY GENERAL PATTON ON OR ABOUT APRIL 11, 1945.
PERSONS ACCOMPANYING HIM DESCRIBED FAR MORE EXTENSIVE INSTALLATIONS.
SO COLONEL R. ALLEN WROTE IN HIS BOOK ("LUCKY FORWARD: THE HISTORY OF PATTON'S 3RD US ARMY" ,COL. ROBERT S. ALLEN, PUBLISHED BY VANGUARD PRESS, NEW YORK 1947), THAT OHRDRUF WAS CAPTURED BY THE 4TH ARMOURED DIVISION, COMBAT COMMAND A. (US ARMOURED DIVISIONS HAD 2 "COMBAT COMMANDS", "A" AND "B". "LUCKY" WAS THE CODE NAME FOR THE 3RD ARMY, "LUCKY FORWARD" WAS PATTON'S MOBILE HEADQUARTERS CODE NAME). THERE IS MORE DESCRIPTION OF THE TUNNELS ON PAGE 370:

"THE UNDERGROUND INSTALLATIONS WERE LITERALLY SUBTERRANEAN TOWNS. THERE WERE 4 IN & AROUND OHRDRUF: ONE NEAR THE HORROR CAMP, ONE UNDER THE SCHLOSS, & 2 WEST OF THE TOWN. OTHERS WERE REPORTED IN NEAR-BY VILLAGES. NONE WERE NATURAL CAVES OR MINES. ALL WERE MAN-MADE MILITARY INSTALLATIONS. THE HORROR CAMP HAD PROVIDED THE LABOUR. AN INTERESTING FEATURE OF THE CONSTRUCTION WAS THE ABSENCE OF ANY SPOIL. IT HAD BEEN CAREFULLY SCATTERED IN HILLS MILES AWAY. THE ONLY COMMUNICATION SHELTER, WHICH IS KNOWN, IS A TWO FLOOR DEEP SHELTER, WITH THE CODE "AMT 10".

OVER 50 FEET UNDERGROUND, THE INSTALLATIONS CONSISTED OF 2 & 3 STORIES SEVERAL MILES IN LENGTH & EXTENDING LIKE THE SPOKES OF A WHEEL. THE ENTIRE HULL STRUCTURE WAS OF MASSIVE REINFORCED CONCRETE. PURPOSE OF THE INSTALLATIONS WAS TO HOUSE THE HIGH COMMAND AFTER IT WAS BOMBED OUT OF BERLIN. THIS PLACES ALSO HAD PANELLED & CARPETED OFFICES, SCORES OF LARGE WORK AND STORE ROOMS, TILED BATHROOMS WITH BATH TUBS AND SHOWERS, FLUSH TOILETS, ELECTRICALLY EQUIPPED KITCHENS, DECORATED DINING ROOMS AND MESS HALLS, GIANT REFRIGERATORS, EXTENSIVE SLEEPING QUARTERS, RECREATION ROOMS, SEPARATE BARS FOR OFFICERS & ENLISTED PERSONNEL, A MOVING PICTURE THEATRE, & AIR-CONDITIONING & SEWAGE SYSTEMS".

NEAR SOME SYSTEMS ON THE SURFACE ARE EXISTING CONCRETE BUILDINGS, WHICH PERHAPS COULD BE DESIGNATED AS CASINOS OR OVER GROUND LODGINGS. NEAR THREE OF THE TUNNEL SYSTEMS ARE LEADING BIG SHAFTS TO THE SURFACE; PROBABLY ELEVATOR-SHAFTS. THE ACCESSES TO THESE SHAFTS ARE, FOR REASONS OF AIR RAID PRECAUTIONS, CONSTRUCTED AS CONCRETE TUNNELS.
FOR THE REASON OF MISSING DOCUMENTS IT IS NOT POSSIBLE, TO ASSIGN THE SINGLE BUILDINGS THEIR PLANNED FUNCTIONS. PROBABLY THE SYSTEMS SHOULD BE USED BY OKH (OBERKOMMANDO DES HERRES), OKW (OBERK. D. WEHRMACHT) & OTHERS .

THE SYSTEMS: DORFBACH: A LITTLE TUNNEL SYSTEM WITH A BASE OF 2500 QM & AN OVERALL TUNNEL LENGTH (AS EXPLORED UNTIL NOW) OF 500 METERS. THREE ENTRY TUNNELS, (2 OF THEM WITH GUARDROOMS AND ENTRY-DEFENSE) ARE LEADING TO TWO LARGER CROSS TUNNELS, WHICH SHOULD CONTAIN THE WORKING ROOMS. ABOUT 15% OF THIS COMPLEX ARE MADE IN CONCRETE.

OKEHAMPTON DEVON AIRFIELD SX 575- 970- FSG.DB:
OKEHAMPTON DEVON ROC POST SX 608- 955- FSG.DB:
BATTLE CAMP. CASEMATE 73:

OLAVINLINNA CASTLE, FINLAND. PICTURE OF FILE O:

OLD BUCKENHAM AIRFIELD, NORFOLK, TM 085940, c1942. STATION 144:

OLD CATTON, NORFOLK, RSG GROUP FILE O:
PICTURE OF R.O.C. PLOTTING ROOM IN BOOK 'NORFOLK AT WAR':

OLD COURT CASTLE.NEAR CREAGH. SEE LIST IN FILE I (1887):

OLDENBURG, BATTERY.CALAIS.CASEMATE 27:

OLD FORT NIAGARA, CANADA. FILE O:

OLD HAREWOOD BARRACKS LEEDS. SEE 'SAVE' BOOK:

OLD HARRYS WALL BATTERY, SCILLY ISLES ALDIS 43:

OLD HALL GREEN. NEAR COCKFIELD, SUFFOLK. TL 897559 PILLBOX:

OLD MILITIA BARRACKS, BURY ST EDMUNDS.SEE 'SAVE' BOOK:

OLD MILITIA BARRACKS, DEVIZES. SEE 'SAVE' BOOK:

OLD MILITIA BARRACKS. NEWCASTLE UNDER LYME. SEE 'SAVE' BOOK:

OLD MILITIA BARRACKS, PONTEFRACT. SEE 'SAVE' BOOK:

OLD NEEDLES BATTERY. ISLE OF WIGHT, SEE BOOKS:
ALDIS 43:
FORT 13:
SEE ALSO NEW NEEDLES BATTERY:

OLD NUNNERY BATTERY, DOVERCOURT, ESSEX. GR 219316. 1 x 75mm EX WW1 FRENCH GUN & VARIOUS MACHINE GUNS, ALSO AA EMPLACEMENT WW2, NOW DESTROYED. A CASEMATED POSITION FOR THE GUN WAS CONSTRUCTED IN OR AROUND AN OLD NUNNERY. MANNED BY THE LOCAL HOME GUARD (HQ 30 ESSEX BTLN HOME GUARD) IN USE JULY/AUGUST 1940 TILL MARCH 1944. (FLANKED BEACH & CLIFFS TO THE S.W. UKFC DATA:
SEE PHOTOGRAPHS (CT):

OLD REDOUBT BATTERY, DYMCHURCH. WW2, FOUR THEN REDUCED TO 3 x 6" BL MK I2, 2 x DELs, TR 13032? MANNED BY 235 COAST BATTERY RA OF 520 COAST REGT RA. UKFC DATA:

OLD SARUM, WEST WILTSHIRE AIRFIELD SU 153- 335- FSG DB:
CONCRETE UNDERGROUND TANK? AT SU 15563375, SEE MAP FILE O & PICTURES:

OLD STAIRS, KENT. WAXHAM, NEAR GREAT YARMOUTH, & LANDGUARD FORT, FELIXSTOWE, SITES FOR THE BALLOON OPERATION 'OUTWARD BOUND' IN WW2.SEE BRITAIN AT WAR MAGAZINE No 14:

OLWYN GOCH SHAFT. UNDERGROUND TNT STORE WW2. CASEMATE 66:

OMDURMAN, FORT AT. BT TODAY OCTOBER 1998. FILE O:

ONGAR, ESSEX. DRILL HALL. MARDEN ASH HILL. SEE BOOK ALWAYS READY BY MIKE OSBORNE:

OOISTDUINKERKE & FLOREFFE CASEMATE 15:

OP DE BILSTRAAT, FORT. SEE CROSSING THE LINES BOOKLET FILE F:

OPEAULA, BATTERY. 8" NAVAL TURRETS. CASEMATE No 82:

OPERATIONS ROOMS RAF FIGHTER GROUP (STATED NOW No 11). PRO AIR 20.2069 DATED 1929-37. VERY GOOD. LISTS PROCEADURES, FORMS SHOWS PICTURES OF EQUIPMENT & HOW THE ROOM FUNCTIONED:
LIST OF RAF OPERATIONS ROOMS CONSTRUCTED DURING WW2:

ORDNANCE DEPOTS IN ENGLAND & ABROAD 1796, 1856, 1914 FILE O:

ORDNANCE FACTORIES WW2. SEE WORKS & BLDGS HMSO FILE W:

ORE, RIVER.JUST ACROSS FROM HAVERGATE ISLAND WAS TANK ARMAMENT DEVELOPMENT UNIT.FROM ORFORDNESS SECRET SITE, BY G.KINSEY:

ORESHEK, FORTRESS ISLAND. AFTER THE BATTLE No 123:

ORFORD CASTLE, SUFFOLK, EADT ARTICLE 1994 FILE O:
PICTURE SHOWING ARTISTS VIEW OF WHAT THE CASTLE LOOKED LIKE WHEN COMPLETE IN 1300. FILE O:

ORFORD AA (DIVER). ORFORD. GEDGRAVE HALL, SUFFOLK. 347 REG AAOR (DG):
102 AA BRIGADE, BRIGADE HQ AT THE GABLES, ORFORD (DG):
SEE PICTURE OF AA SITE:

ORFORD, SEE BOYTON REFERENCE TANK RANGE AREA FOR WW2:

ORFORD, SUFFOLK. DEFENCES 1913. PRO WO 78.2038:
BATTLE TRAINING AREA 1942, SUFFOLK RECORD OFFICE, IPSWICH HE 10.10544/2 & PLAN EF11/1/3/17:
ORFORD & ORFORD ISLAND O.S. MAPS SHOWING DEFENCE LOCATIONS, FILE O:

ORFORD YACHT CLUB WW2 MIL GRID REF 8767. MINES WERE TO BE FLOATED UP & DOWN THE RIVER ALDE TO PREVENT ENEMY MOVEMENT. MINE STORE ERRECTED TO HOLD 25 MINES, LAUNCHING APPARATUS, SITE TO HAVE COMMS TO NEAREST COY HQ. TO BE MANNED BY 3 O.Rs. PRO WO 166.958. MANNED BY 10 H.L.T. SEE ALSO SLAUGHDEN QUAY:

ORFORD NESS, SUFFOLK. OWNED BY THE N.T. CASEMATE 39:
FILE O:
ARTICLE ON, EADT DECEMBER 3 2003:
BOMB DISCOVERED EADT JULY 2003 FILE O:
FIRST WORLD WAR HANGER AT, FILE O:
PICTURE OF PAGODA OCT 2003 FILE O:

ORKNEY CASEMATE 47, 50, 81, 84:
ORKNEY BARRAGE SEARCH LIGHT POSITION. SEE SEARCH LIGHT FILE:
ORKNEY COAST BATTERIES 1915-56 SEE BOOK BY JEFF DORMAN:
ORKNEY COAST BATTERIES WW2 CBA BOOK SITE GAZETTER SCOTLAND 1998:
ORKNEY DURING 1st & 2nd WW. FORT 9:
ORKNEY FSG TOUR 2008 CASEMATE No 84:
ORKNEY ISLANDS REPORT. FILE U.

ORLANDET, NORWAY 28cm TURRET.CASEMATE 31:

ORLOCK HEAD BATTERY, COUNTY DOWN. WW2 2 x 6" BL, 2 x CASLs. GRID REFERENCE 569835? LOCATION & NAME? UKFC DATA:

ORMUZ, FORT AT, PERSIAN GULF.SEE LIST IN FILE I (1857):

ORPINGTON. SOUTHERN RAILWAY CONTROL CENTRE WW2 FILE O:

ORWELL PARK, NEAR IPSWICH, SUFFOLK. HAD ARMY CAMP WO 166.30:
ALSO USED FOR PARKING AREA IN READINESS FOR D DAY LANDINGS:
SEE AERIAL PHOTOGRAPH IN SUFFOLKS DEFENDED SHORE, ENGLISH HERITAGE:
11 APRIL 1942 10th BTLN GLOUCESTERSHIRE REGT AT THE CAMP, THEN 14 OCT 1943 WAS THE HQ FOR 1st HEAVY REGT R.A. SOURCE SUFFOLK RECORD OFFICE, SUFFOLK POLICE RECORDS REGARDING WARNINGS OF LIVE FIRING UNSORTED DOCUMENTS ED400: 14703:

ORWELL, RIVER. SUFFOLK. REMAINS OF HAMPDEN BOMBER FOUND IN IT.EADT NOV.28 1986.FILE F:
RIVER ORWELL IPS.REC.OFF.MICROFILMS JC1/9/1 EARLY PLANS ONLY LANDGUARD SHOWN, NO OTHER MILITARY SITES:
RIVER ORWELL. POSSIBLY KNOWN AS POND HALL BATTERY (M OSBORNE), ON BANKS OF THE RIVER IN THE AREA OF NACTON TM 195402 ARE TWO, ONE MAN MG/PILLBOXES OR POSSIBLE Ops/FIXED S/L. 5 ft x 7'-11 ½", SINGLE CONCRETE LOOPHOLE FACING DOWN RIVER, SMALL ENTRANCE TO ONE SIDE, BRICK OUTER FACE. BETWEEN THE TWO OF THEM IS A LARGE OBLONG CONCRETE SLAB, 17" HIGH (LENGTH?), FURTHER EAST IS AN OBLONG CONCRETE CONSTRUCTION BUILT IN THE BANK OF THE STREAM (UNIDENTIFIED) FURTHER EXCAVATIONS REVEALLED A MUCH LARGER DEFENCE SITE WITH A ROCKET WEAPON KNOWN AS RADIATOR. SEE PHOTOGRAPHS & GREEN SURVEY BOOK:
PRO WO 166.958 SEE ALSO RIVERS DEBEN & STOUR. MANNED 1940 BY (DETACHMENT FROM) 6 SUFFOLK BN HOME GUARD. SEE WEAPONS FILE FOR DESCRIPTION OF:

OSAKA BATTERY, JAPAN.SEE LIST IN FILE I (1872):

OSCARSBORG, FORTRESS OF. NORWAY. AFTER THE BATTLE No 101, 126:
REDAN 64:
SITED ON SOUTH KAHOLMEN ISLAND 1855:
28cm GUNS:
SEE GERMAN DEFENCES IN NORWAY BOOK:
CASEMATE 75, 76, 77:

OSCEOLA, BATTERY. U.S.A. CASEMATE 32:

OSMINGTON, DORSET. AA SITE ST725825 D.GODWIN FILE A:

OSSINGTON, NOTTS. RAF BOMBER AIRFIELD OPENED 1942 CLOSED 1946:

OSTECK. GERMAN STRONG POINT, A FEW MILES FROM CHERBOURG, HAD MINES AUTO FLAMETHROWERS & TANK TRAPS,U/G TUNNELS CONECTING BLOCKHOUSES. FROM THE BOOK SECRETS OF D.DAY:

OSTENBURG BATTERY, TRINCOMALEE. PRO WO 78.4836 1933-1940, 66 PLANS:

OSTEND SANDS BATTERY 4" GUNS. MICHELIN GUIDE:
DEFENCES OF 1939-45. FILE O:
O.P. AT OSTEND WW1 FILE O:
THE GREAT SIEGE AT 1601-1604 FORT 27:

OSTRAVA, CZECHOSLOVAKIA. BUNKER AT. AFTER THE BATTLE No 80:

OTFORD CASTLE, KENT.SEE LIST IN FILE I (1849):

OTTERBURN CAMP, FILE O:

OTTERY ST MARY DEVON ROC POST SY 059- 952- FSG.DB:
OTTERY ST MARY DEVON ROC POST SY 102- 968- FSG.DB:
DRILL HALL FROM BEFORE WW1, NOW A SUPERMARKET (SEE DRILL HALLS OF BRITAIN. MIKE OSBOURNE):
BARRACKS THERE AT LEAST 1806, IN 1807 BUCKINGHAMSHIRE REGT THERE. DEVON MILITIA ALSO:

OTTRINGHAM NEAR HULL, 800 Kw TRANSMITTER FOR WAR TIME PROPAGANDA RUN BY THE BBC HAS U/G SECTION PREPARED WITH HELP FROM THE CANADIAN FORCES IN WW2 CODE NAME 'ASPIDISTRA', FROM EAST COAST DIGEST VOL 6 No 2 APRIL 1977:
FILE O:

OULTON AIRFIELD, NORFOLK. TG 145275, c1940-47:

OULTON, NR LOWESTOFT. CAMPS HEATH AA SITE LH4. TM 516947 COMMAND POST & HUTS ONLY LEFT D.GODWIN FILE A:
LH2 OULTON TM 535946. TOTAL OF FIVE SITES FOR LOWESTOFT. SEE THE BOOK FORTRESS LOWESTOFT BY R JARVIS:

OULTON BROAD, SUFFOLK. AN OLD SILK FACTORY ON THE SOUTH SIDE OF OULTON BROAD IN WW2 WAS USED AS A RN AMMUNITION DEPOT (HMS MYLODON) MIKE OSBORNE:

OUSEBURN CULVER, SEE NEWCASTLE:

OUSTON AIRFIELD, NORTHUMBERLAND. NZ 082700. NOW ALBEMARLE BARRACKS. DEFENCES AT LOOPHOLES No 43:

OUSTON. NEAR NOTTINGHAM? WAR ROOM? REF WAR PLAN UK.PAGE 243:

OUTWOOD SOMERSET P/B. ST 3072 2902 FSG DB:

OVAL, LONDON, DEEP SHELTER FILE S:

OVERHEAD PROTECTION FOR 6" NAVAL GUN 1940 SEE PLANS IN PLAN BOX:
SEE ALSO PLASTIC ARMOUR:

OVERLEY GLOUCESTERSHIRE AIRFIELD SO 965- 046- FSG DB:

OXBURGH HALL. MOATED HOUSE BUILT IN 1482. FILE O:

OXFORD CANAL STOP LINE. FORT 34:

OXFORD CASTLE & TOWN WALLS, ALDIS 45:

OXFORD CITY & COUNTY CONTROL CENTRE, WOODSTOCK ROAD (1962) FILE O:

OXFORD COUNTY COUNCIL EMERGENCY CENTRE. WOODEATON FILE O:

OXFORD CANAL DEFENCE LINE. LOOPHOLES No 39:

OXFORD, COWLEY BARRACKS. SEE 'SAVE' BOOK:

OXFORD. ROC GROUP HQ No 3, FILE O:

OYBIN, FORTRESS. BOHEMIA.SEE LIST IN FILE I (1889):

OYSTERMOUTH CASTLE. SWANSEA, ALDIS 36: SEE LIST IN FILE I (1880):

UPDATED 03/06/2009.