Chart correction 3087* — chart 1900
Chart 1900 [ previous update 813/26 ] ETRS89 DATUM Insert legend, UMS Trial Area, centred on: 50° 18´·71N., 4° 12´·39W. 50° 19´·56N., 4° 09´·40W. the accompanying note, UNMANNED MARINE SYSTEMS, centred on: 50° 19´·28N., 4° 05´·46W.
Source: UKHO Admiralty Notices to Mariners
Reference information — always verify against official Notices to Mariners before navigation.