| Significance | Code | Meaning |
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| FIR | EGTT | London FIR | | | / | | | Qualifiers | Q | | | | WE | Exercises | | | LW | will take place | | | / | | | Traffic | I | IFR traffic affected | | | V | VFR traffic affected | | | / | | | Purpose | B | For inclusion in Preflight Infomation Bulletins | | | O | Operationally significant for IFR flights | | | / | | | Scope | A | Aerodrome information | | | W | Navigational Warning | | | / | | | From flight level | 000 | Surface | | | / | | | Up to flight level | 013 | 1300 feet QNE | | | / | | | Centre Latitude | 5137N | 51° 37' North' | | Centre Longitude | 00106W | 1° 6' West | | Radius of area affected | 008 | 8 nautical miles |
| | AIR EXER.MULTIPLE MILITARY HEL OPERATING WITHIN 7NM RADIUS OF 513703N 0010543W ( RAF BENSON ). FOR INFO 01491 827015.AR-2026-7085 / 01. |
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