Some information on the Rotor Radar project from various sources.

ROTOR 1 STATIONS

(a) GCI

NAME

GRID REF

NAME

GRID REF

Anstruther

NO 568088

Gailes

NS 327361

Bawdsey (combined GCI/CH)

TM 347388

Langtoft

TF 155129

Boulmer

NU240125

Neatishead

TG 346184

Buchan

NK 113408

St Annes

SD 348303

Calvo

NY 144545

St Twynells

SR 944976

Charmy Down

ST 768702

Sandwich

TR 297575

Chenies

TQ 015997

Scarnish

NM 032456

Comberton

SO 968461

Seaton Snook

NZ 519280

Hack Green

SJ 647483

Skendleby

TF 438709

Hartland Point

SS 237277

Sopley

SZ 163977

Holmpton

TA 367225

Treleaver

SW 766174

Hope Cove

SX 716374

Trewan Sands

SH 322754

 

 

Wartling

TQ 662088

(b) CEW stations

Beachy Head

TV 590959

Portland

SY 696735

Bempton

TA 192736

St Margarets

TR370451

Cold Hesledon

NZ 417468

Trimingham

TG 290385

Inverbervie

NO 841734

Ventnor (combined CEW/CH)

SZ 565784

(c) Chain Home stations

Castle Rock

IC 796346

Ringstead

SY 751817

Danby Beacon

NZ 732097

Rye

TQ 968232

Douglas Wood

NO 488415

Sango

NC 417675

Drone Hill

NT 845665

School Hill

NO 908982

Drytree

SW 723218

Sennen

SW 376246

Dunkirk

TR 076595

Staxton Wold

TA 023778

Folly

SM 858195

Stenigot

TF 256827

Hayscastle Cross

SM 920256

Stoke Holy Cross

TG 257028

High Street

TM 411720

Swingate

TR 335429

Hill Head

NJ 947616

Trelanvean

SW 762193

Netherbutton

HY 61044

Trerew

SW 812585

Pevensey

TQ 644073

West Beckham

TG 142389

Poling

TQ 043052

West Prawle

SX 771374

(d) Chain Home Extra Low stations

Crosslaw

NT 880680

Goldsborough

NZ 830138

Fairlight

TQ 862113

Hopton

TM 540990

Foreness

TR 385710

Truleigh Hill

TQ 224109

(e) Sector Operations Centres

Barnton Quarry

NT 203748

Kelvedon Hatch

TQ 561995

Bawburgh

TG 165080

Longley Lane

SD 541365

Box

ST 850690

Shipton

SE 542618

 


This was the current status of some of the Rotor stations as of 1981 Interesting reading the Cold war was still very Much in force.

ROTOR GROUND CONTROL INTERCEPT (GCI) STATIONS 

ANSTRUTHER     NO 568 088     R3 BUNGALOW     TYPE 80     2 LEVEL

The site is now used as the Scottish Northern Zone Control. All original radar buildings remain on the site 

although all radar scanners have been removed. The type 80 building has been converted to a generating 

plant with exhausts visible on the structure. There are also the remains of the Chain Home station on the situ. 

All above ground buildings have been maintained in very good condition. There are two aerial masts located 

on the site with an additional smaller mast for the emergency UHF aerial.

BUCHAN     NK 113 408     R3 BUNGALOW     TYPE 80     2 LEVEL

The site is still an R.A.F. radar station although it has been extensively enlarged since the 1950’s.

BOULMER     NU 239 124     R3 BUNGALOW     TYPE 80     2 LEVEL

The site is still an R.A.F. radar station although it has been extensively enlarged since the 1950’s

SEATON SNOOK     NZ 519280     R3 BUNGALOW     TYPE 80     2 LEVEL

The site is now privately owned and is used by a construction company. The bungalow is now a complete ruin 

with all Windows and doors open and the roof missing. The main air vent appears to have been demolished, 

and the type 80 Radar building has been converted into a snack bar for the site workers. All other radar buildings 

appear to have bean demolished. Access to the underground bunker may be possible through the ruined bungalow.

PATRINGTON     TA 367 225     R3 BUNGALOW     TYPE 80     2 LEVEL

The site is no longer an R.A.F. radar station although it is still maintained by the R.A.F. who have a caretaker on 

the site. All radar scanners have been dismantled, and only the radar buildings remain. The bungalow and other 

surface buildings have been maintained in vary good condition. The purpose for retaining the site is at present unknown.

HARTLAND POINT     SS 238 274     SURFACE BUILDING

The site is still an R.A.F. radar station. The main operations’ building is the same as at R.A.F. Chenies. SURFACE

ST ATHAN

The R.A.F. maintain a large airfield at St Athan, but no trace could be found of the radar site. Presume site has 

been completely dismantled and removed.

ST TWYNELLS     SR 944 976     R6 SEMI SUNK     TYPE 80     2 LEVEL

The site was closed as an R.A.F. radar station during the early 1960’s, and is now completely derelict. 

A mini - Bungalow guardhouse is positioned by the road, which is also derelict. Access is possible to both 

the blockhouse and the mini - bungalow which are on one aide of the road, and the type 60 building on the other. 

The condition of the blockhouse is very good, and still contains floorboards (unlike Langtoft). An R.O.C. 

post is also on the site and is still operational.

HACK GREEN     SJ 647 483     R6 SEMI SUNK     2 LEVEL

The site was closed as an R.A.F. radar station during the early 1960’s. Within the last few years a high 

fence has been erected around the blockhouse, and the entrance to the structure has been bricked up to stop 

access. This may suggest that the site has been squired by the Home Office and is awaiting conversion to an S.R.H.Q. 

The mini - bungalow guardhouse has been completely demolished.

GAILES     NS 327 361     R8 SURFACE

The site appears to have been transferred from the R.A.F. to the C.A.A. and is still maintained as a radar station.

SCARINISH (TIREE)     NM032456     R8 SURFACE

The site was closed as an R.A.F. radar station during the early 1960’s. Presume the site is now derelict, or forms 

part of the R.A.F. airfield buildings on Tiree - Site not inspected.

ROTOR CHAIN HOME EXTRA LOW (C.H.E.L)

CROSSLAW     NT 880 680     R3 BUNGALOW

The site is no longer an R.A.F. radar station, and appears to be used by the Civil Aviation Authority as an 

aircraft navigational facility. Two facilities are provided - NDB & VOR and both operate under the call sign SAB (St Abbs).

The CAA only maintains the bungalow site, the underground section is presumed derelict. Access is possible to the 

main air vent, although the stairs are missing. And through two manhole shafts as at Hopton)

GOLDSBOROUGH     NZ 830138     R3 BUNGALOW     1 LEVEL

Site closed as RAF radar station and is now run as the Minsthorpe Outdoor Leisure Centre, operating during the 

summer months only. It is uncertain if the underground section is in use, the roof of the Bungalow has recently been re-tiled. 

The air vents have been demolished.

HOPTON     TM 540 990     R3 BUNGALOW     1 LEVEL

The site is no longer an R.A.F. radar station and is now derelict. It appears that the Home Office was using 

the site during the late 1960’s (possibly as an S.R.C.), but since then the site has fallen into disrepair. When 

first visited in 1979 the bungalow was in fair condition, but now (1981) has been vandalized, and is a complete ruin. 

The land now belongs to the farm nearby, and access is possible with permission. An abandoned R.O.C. post is also on the site.

FORENESS     TR 384 714     R3 BUNGALOW     1 LEVEL

The site has been completely demolished. All that remains are a few scattered bricks where the bungalow once stood. 

There is no access to the underground section. Site positioned beside the existing Coastguard Station.

FAIRLIGHT     TQ 862 113     R3 BUNGALOW     1 LEVEL

The site has been completely demolished. There is no access to the underground section ~a far as is known. 

The site was positioned beside the existing Coastguard Station were there is an underground R.O.C. post. It 

is unknown if this may connect to the Rotor bunker.

TRULEIGH HILL     TQ 224 109     R3 BUNGALOW     1 LEVEL

The site is no longer an R.A.F. radar station, and is now used by the Home Office as a radio station. 

The underground bunker does not appear to be in use as access is possible to part of it through the main air vent. 

The main section of the bunker is inaccessible, being behind large double steel doors which are firmly closed.

ROTOR C.E.W STATIONS

INVERBERVIE     NO 841 734     R3 BUNGALOW     1 LEVEL

The site is no longer an R.A.F. radar station. There is an U.S.N. microwave repeater station on the site, 

but it does not appear to use any of the underground facilities. The bungalow has been maintained, however, in very 

good condition.

COLD HESLEDON     NZ     R 3 BUNGALOW     1 LEVEL

The bungalow has been completely demolished. The only remaining features of the original site are the 

small radar Scanner buildings, and a rectangular earth mound under which the main bunker would 

have been positioned. Part of the site has been re-fenced and radio equipment has been installed 

into a modified main air vent (top missing). It is uncertain if access is possible to the underground section 

through this structure.

BEMPTON     TA 192 736     R3 BUNGALOW     TYPE 80     1 LEVEL

The site is no longer an R.A.F. radar station, and is now derelict. It would appear 

that the station closed in the late 1960’s due to the opening of the new S.O.C. at Staxton Wold. 

All radar equipment has been removed, and access is possible to the bungalow and a joining 

underground bunker the overall condition of the site is poor.

TRIMINGHAM     TG 290 385     R3 BUNGALOW     TYPE 80     1 LEVEL

The site is no longer an R.A.F. radar station, and now appears to be privately owned. The 

bungalow has been very well maintained, and has two additional windows fitted into the roof section. 

All radar equipment has been removed, although there is a tall mast on the site. The local Post Office 

telephone directory has an entry for the Civil Aviation Authority listed as Trimingham Radio Station. 

If this is on the same site, this may well be the mast Previously mentioned.

ST MARGARETS     TR 373 452     1 LEVEL

Site completely demolished. The grid reference given is the most likely site for the Rotor 

building in the area, and would appear to be where it was positioned beside the existing Coastguard Station.

BEACHY HEAD     TV 590 959     R3 BUNGALOW     1 LEVEL

The site is no longer an R.A.F. radar station, and has been converted for use as a Coast-Guard station. 

All radar Scanners and buildings have been removed, and the air vents have been demolished. 

There does not appear to be any access to the underground bunker, as the bungalow does not have 

the usual garage section positioned at the rear. The only possible access point being a manhole cover

located 50yds east of the bungalow.

ROTOR SECTOR OPERATIONS CENTERS

KELVEDON HATCH     TQ 561 994     R3 BUNGALOW     3 LEVEL     METROPOLITAN

The site was closed as an S.O.C. when the S.O.C.s were located within the master Radar Stations. 

The site was then kept on a care and maintenance basis until it was taken over by the Home Office 

in the early 1960’s. The site is now S.R.H.Q. 51.

SHIPTON     SE 542 618     R3 BUNGALOW     3 LEVEL     NORTHERN

The site was closed when the S.O.C’s were located at the master Radar Stations. The site was then 

taken over by the Home Office and possibly used as the Regional Seat of Government for Region 2. 

The site has since been re-classified as S.R.H,Q. 2.1. And is currently being enlarged to 4 levels.

BAWBUBURGH     TG 165 080     R3 BUNGALOW     EASTERN

The site was closed when the S.O.C.s were located at the Plaster Radar Stations. The site has since 

been taken over the Home Office as S.R.H.Q. 4.1. and has also been extensively enlarged, possibly to 

four floors like Shipton.

LONGLEY LANE     SO 539 364     WESTERN

The site appears to have never been fully completed for its original purpose, as the Western Sector 

was disbanded in the early 1950’s. The underground bunker was, however, constructed and became 

the Sector Headquarters for the Royal Observer Corp No 21 Group. The site is still maintained by the 

R.O.C. It was thought during the early 1960’s that the site was a Regional Seat of Government, but 

this seems unlikely.

BARNTON QUARRY     NT 203 748     PURPOSE BUILT QUARRY BUILDING     CALEDONIAN

The site was taken over from the Air Ministry by the Ministry of Public Buildings & Works in October 

1961, and re-equipped as the Regional Seat of Government for Scotland. It has since been reclassified 

as the Central Zone Head-Quarters for Scotland. The surface buildings are all of single story construction, 

and largely made of brick. The bunker has been constructed inside what was once an open quarry, of 

which the majority was then filled in covering the structure. Two 65 ft masts were erected in 1967, 

which have the usual VHF/UHF communications aerials in place.

BOX     ST 850 690      PURPOSE BUILT QUARRY BUILDING       SOUTHERN

Site not positively identified, but is probably located at, under or near R.A.F. Rudloe Manor.


And what about the R numbers - whats that all mean?

The Rotor Radar Project "R" types

R1 ~ Standard underground Centimetric Early Warning station

R2 ~ Standard underground Chain Home Extra Low station

R3 ~ Standard underground Ground Control Intercept station

R4 ~ Standard underground Sector Operation Centre

R5 ~ Design for a surface GCI station, later abandoned

R6 ~ Standard semi-underground Ground Control Intercept station

R7 ~ Underground ‘well’ used for type 7 radar

R8 ~ Standard non-hardened, ‘Seco’ surface Ground Control Intercept station

R9 ~ Converted ‘Happidrome GCI building (design later abandoned)

April 1953 saw specifications issued for new building types:

R10 ~ Above ground CEW station for ROTOR 3 stations. Similar internal layout to underground R1

R11 ~ Above ground CHEL station for ROTOR 3 stations. Similar internal layout to underground R2