From LCY website, explains the holding at the moment:
"Passenger Update - Wednesday 27th January 2016 -The Connaught Bridge will open at high tide today to facilitate the movement of a NATO Warship,
Further details below:
Spanish tanker is to be positioned from lock onto Dolphin 2. From the point it leaves the lock to the time confirmed on Dolphin 2 ILS is off and no movements. Tanker is technically safeguarded when on Dolphin 2.
Spanish tanker arrives on high tide into lock at aprox 1546. Will be ready to leave lock at aprox 1605.
Manoeuvre from lock to Dolphin 2 will take max 20 mins. A gap in arrivals for sometime after 1605 will need to be co-ordinated with TC – preferably well in advance so that they can slow a/c down en-route to minimise air holding. RoDMA are flexible on the timing of the transit – it should be arranged to minimise the amount of air holding. When we have an idea of the planned time advise RoDMA as they will start to lift the bridge 3 mins prior so that the tanker can move as soon as the gap in traffic begins.
The airport will NOTAM advising that additional air holding may be required 1600-1700.
ADM will be in the tower and will tell RoDMA when tanker is allowed to begin transit from the lock. RoDMA will tell ADM when tanker in position on Dolphin 2. Tugs will be used to manoeuvre tanker but provided they are the Spitzer tugs on the safeguarded list movements can resume as soon as the tanker is confirmed in position on Dolphin 2.
The tanker will be repositioned into the lock in the early hours of 28th Jan.
Two other vessels will be positioned into the RVD out of hours on the night of the 27th, they will advise us in advance of any transmissions they wish to make so that we can assess."
First inbound now on it's way in. For future passengers sake, hope that not too many tall ships affect the airport in this way!