London FIR

General

Quick lookup guide for LTCC:

Vertical Limits:

London Airports:

Holding Procedures:

The TC controller is responsible for putting aircraft into the top of the stacks and descending them down through them. Approach control is responsible for the bottom two levels of the stack (MSL and MSL+1) so aircraft occupying these levels should be on the approach control frequency. The TMA controllers should only clear aircraft down as far as MSL + 1 (Whether aircraft are to enter the stack or not)

When an aircraft has been told to descend to the next level in the hold, the level is said to be vacant once the mode C readout reads +/- 400ft from the holding level. For example, if we had an aircraft at FL140 who had been told to descend to FL130, that level would only be classed as vacant once his mode C readout was going in the correct direction and read FL136. Once the level is vacant, the next aircraft can be descended down to that level.

Unless otherwise stated, the maximum speed in the hold up to and including FL140 is 220kts. Above this, a standard ICAO holding speed of 240kts is applied.

Speed Limits:

Speed is limited to 250kts below FL100 unless otherwise stated. TMA controllers are no longer permitted to cancel the speed restriction on departing aircraft.

The speed restriction for arriving aircraft may be lifted for tactical reasons.

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