So we departed Tilbury at the civilized time of 8 am in the morning. As we were docked with the nose up the river we had to swing around off the berth before going down the river. With a wind force four blowing from the West and the current coming from the same direction (ebbing), I had a tugboat hooked up to the stern to act as a pivoting point while we swung around on the current. That maneuver is a bit eerie to see because while we are making the swing we are also set bodily down the river by the current. By the time we were finished and lined up, we were also about a mile downstream from the dock. From there onwards the ebb current pushed us towards open waters, four hours down the river. We passed the familiar sights, the construction of the new container terminal, Southend on Sea and finally the wide estuary of the Thames. Here we had to slow down to reduce the ships squat because we were going through the Princess channel which is very shallow, especially during ebb tide. We knew that we would have enough water under the keel, as the shallowest patch of sea bottom was exactly 7 meters under water and that is a measurement at chart datum. This is normally the lowest of the low waters and 7 meters is our draft so we only needed a little bit more to stay afloat. So I watched the echo sounder to see what the score would be this time and the meter stopped at 1.6 meters under the keel, just over 5 feet. Nothing to worry about as long as we sailed over it with a speed of no more than 10 knots. Continue reading
