| Significance | Code | Meaning |
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| FIR | EGTT | London FIR | | | / | | | Qualifiers | Q | | | | RT | Temporary restricted area | | | CS | installed | | | / | | | Traffic | I | IFR traffic affected | | | V | VFR traffic affected | | | / | | | Purpose | B | For inclusion in Preflight Infomation Bulletins | | | O | Operationally significant for IFR flights | | | / | | | Scope | W | Navigational Warning | | | / | | | From flight level | 000 | Surface | | | / | | | Up to flight level | 013 | 1300 feet QNE | | | / | | | Centre Latitude | 5143N | 51° 43' North' | | Centre Longitude | 00026E | 0° 26' East | | Radius of area affected | 001 | 1 nautical miles |
| | RESTRICTED AREA ( TEMPORARY ) INSTALLED FOR UAS ONLY ( CHELMSFORD ). WITHIN AREA BOUNDED BY 514220N 0002549E-514219N 0002531E-514218N 0002528E-514222N 0002528E-514232N 0002531E-514240N 0002541E-514243N 0002547E-514247N 0002547E-514246N 0002543E-514247N 0002539E-514257N 0002545E-514311N 0002549E-514317N 0002554E-514318N 0002556E-514317N 0002601E-514310N 0002636E-514309N 0002642E-514308N 0002652E-514308N 0002702E-514306N 0002703E-514305N 0002700E-514300N 0002701E-514244N 0002638E-514231N 0002628E-514211N 0002607E-514220N 0002549E.DOES NOT APPLY TO ANY UAS FLYING IN ACCORDANCE WITH EXCEPTIONS STATED IN THE BRIEFING SHEET,BFS 039 / 2026,WITH CHART REFERS.FURTHER DETAILS WWW.NATS.AERO / AIS.RESTRICTION OF FLYING REGULATIONS MADE UNDER ARTICLE 239 OF AIR NAV ORDER 2016.AR-2026-2368 / 01. |
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