| Significance | Code | Meaning |
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| FIR | EGTT | London FIR | | | / | | | Qualifiers | Q | | | | WU | Unmanned flight | | | 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 | 020 | 2000 feet QNE | | | / | | | Centre Latitude | 5157N | 51° 57' North' | | Centre Longitude | 00016E | 0° 16' East | | Radius of area affected | 001 | 1 nautical miles |
| | FLYING OF LARGE MODEL AIRCRAFT WITHIN 0.5NM RADIUS OF 515642N 0001607E ( HENHAM ). FOR INFO 07847 427866.AR-2026-2477 / 01. |
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