Harwich

Harwich GDA map

Key

Heavy Anti-Aircraft SiteHAA symbol largeDiver Anti-Aircraft SiteHAA small redZ BatteryZ Projector symbol
Coast Batterycoast symbolRadar StationRadar symbol
Site No. earlySite No. lateNameOS Grid Reference
H1LandguardTM 286 325
H2Searsons FarmTM 278 360
H3DovercourtTM 247 304
H4Shetley StreetTM 239 349
H4TM 244 341
H5Little OakleyTM 217 290
H6TM 184 359
K22H7Old FelixstoweTM 317 358
K10TM 229 289

Coding sequence integral with Ipswich & Martlesham

Gun Strengths

Battle of Britain & the Blitz

Dates3.7 inch static 3.7 inch mobile 3 inch
May 40044
Jun 40870
Jul 40870
Aug 40870
Sep 40 – May 41800

Overlord & Diver

Dates5.25 inch3.7 inch static3.7 inch mobile
Mar 440240
Apr 440240
Jun 4402424
Jul 440240
Aug 440240
Jan 454200
May 454200
The Royal Artillery 1939-45