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Valid 4 November 2025 A temporary arrangement is permitted to split Sector 18 ("Seaford") during WorldFlight. For this event, London Upper Sector (LUS) is permitted to be opened without AC South online. Any errors in procedures should be reported to the Operations department via the Helpdesk or Discord. Available Position(s) Seaford (Sector 18) - LON_SF_CTR (Relief: LON_SF__CTR) Frequency: 135.055 MHz RTF callsign: London Control Coordination callsign: Seaford Top-down responsibility for: TC South West Seaford (Sector 18) is a split of the Worthing sector. Its area of responsibility is as shown in Figure 1. TC South West is covered top-down by the Seaford controller when a TC position covering the sector is not online. 🗺️There is no standalone Agreed Levels Diagram for the Seaford sector. Controllers should use the Worthing and Dover diagram, cross referenced with the sector diagram below in order to visualise agreements. Additional agreements are specified below. Agreed Levels Note: Only additional agreements between Seaford (S18) and Worthing/LUS are detailed here. From LUS to Seaford (Sector 18) To Agreement Conditions LFOB, LFOP FL310 lvl SFD Via UM605 LFP* FL330 lvl SFD Via UM605 Paris TMA Descending FL310 Via L151/UN859 LUS shall issue an 'expect level' of FL270 by SITET From Worthing to Seaford (Sector 18) From Agreement Conditions EGGW, EGWU FL210 lvl abeam MAY If traffic is climbing well, Worthing may transfer traffic to LUS at a higher level, instead of Seaford Coordination with Adjacent Sectors & Units Paris/Brest ACCs LTMA outbounds shall be allocated a maximum level of FL290 and transferred to Paris. If an aircraft is climbing well, Seaford may climb aircraft to a Brest level (FL310+) subject to coordination with LUS. The aircraft must reach Brest airspace by the FIR boundary (i.e. cross SITET/XAMAB at FL295+). and coordination is agreed with LUS to climb above FL295 Dover/TC SW ELDAX inbounds will be transferred directly to TC SW from AC Dover. Figure 1 - Seaford (Sector 18) Area of Responsibility

Valid 4 November 2025 A temporary arrangement is permitted to split LAC South during WorldFlight. For this event, London Upper Sector (LUS) is permitted to be opened without AC South online. Any errors in procedures should be reported to the Operations department via the Helpdesk or Discord. Available Position(s) London Upper Sector - LON_SU_CTR (Relief: LON_SU__CTR) Frequency: 132.840 MHz RTF callsign: London Control Coordination callsign: London Upper Top-down responsibility for: None LUS is an upper airspace split of the London South LAG, with airspace taken from both the Worthing and Dover sectors. Its area of responsibility is as shown in Figure 1. If LUS logs on, then AC South's area of responsibility is the normal AC Worthing and Dover combined AoR, minus that which is shown in Figure 1. 🗺️Agreed Levels Diagram Agreed Levels There are very few agreed levels in and out of LUS. They are listed below for AC South's (Worthing & Dover) reference: From LUS to Dover To Agreement Conditions Brussels TMA, EBLG, EHBK, EHAM, EHBD and LFPG FL310 lvl BIG Via UL9/L607 FL310 lvl ROKKE Via M140 From LUS to Worthing (Seaford) To Agreement Conditions LFOB, LFOP FL310 lvl SFD Via UM605 LFP* FL330 lvl SFD Via UM605 Paris TMA Descending FL310 Via L151/UN859 LUS shall issue an 'expect level' of FL270 by SITET From Worthing to LUS From Agreement Conditions Brize Group, Midlands Group, Severn Group, EGSS and EGSC ⬆️ FL300 Via E and V intention codes From Daventry to LUS From Agreement Conditions MTMA Group ⬆️ FL310 Via all routes Coordination with Adjacent Sectors & Units Maastricht UAC - KOKSY (Belux vACC) The LUS controller must ensure that traffic cruising in their airspace via KONAN is level at its RFL by the western edge of the DVR RFC Area (EGTT vMATS LAC 3.4.3.9), else the traffic must be coordinated with MUAC. This traffic is considered 'known' to MUAC if it's at its RFL, thus enabling the RFC of LTMA departures via KONAN from Dover into LUS's airspace prior to the FIR boundary. Brest ACC The LUS controller must ensure that traffic cruising in their airspace via SITET/XAMAB is level at its RFL by the northern edge of the La Manche Release Area (EGTT vMATS LAC 2.4.1.8), else the traffic must be coordinated with the relevant Brest sector. This traffic is considered 'known' to Brest if it's at its RFL, thus enabling the RFC of LTMA departures via SITET/XAMAB from Worthing into LUS's airspace prior to the FIR boundary. Daventry Daventry must be informed when LUS is opened. EGCC/GP departures climbing FL310 will be transferred to LUS - Daventry must ensure they reach FL310 by the LUS boundary. MTMA inbounds that are transferred from LUS to Daventry are only RFD to FL310 (i.e. remaining inside LUS's airspace). Clacton and AC West Sectors There are no agreements with sectors within Clacton or AC West airspace. However, these controllers should be informed when LUS is opened. Figure 1 - London Upper Sector (LUS) Area of Responsibility

Effective 02/11/2025 1930-2200z During the Bonfires & Beacons event, a temporary instruction is in place to allow controllers to control the following position Deanland Radio (EGKL_R_TWR) 129.730 Controllers rated S1+ with the AFIS/AG endorsement may open this position.

All Controller Software Downloads are now available at: https://docs.vatsim.uk/General/Software Downloads/Controller Pack %26 Sector File/