Transponder Mandatory Zones
Talking about UK only.
Is mode S required for flight in Transponder Mandatory Zones - have searched high and low in UK AIP but haven't been able to come up with anything.
Am thinking of Stansted but would be interested in knowing where other TMZs are located in the UK.
References to support any answers would be appreciated.
On a slightly different tack when is Transponder Code 7010 used?
Thanks for all assistance.