Sean mused . . . > An idle calculation I did; roughly the bridge arches here total roughly > 10m wide, to a depth of 2 m, with water travelling at 1m/sec (slow > walking pace - 3.6 km/hour). That means 20 cubic metres i.e. 20 tonnes > of water per second = 1200 tonnes per minute = 72000 tonnes per hour > (quite a large ship) = 1,728,000 tonnes per day. Makes you think.
I see. So if a large ship was to travel upstream each hour then the risk of flooding could be averted altogether. There is so often a simple answer to the world's problems. Ref the BA 777 belly flop I am minded to relate the (presumably spoof) entries in a log passed between pilots and ground crew. Pilot note - "Autopilot seems to have an intermittent fault. A couple of times this has resulted in heavy landing" Ground crew techy response - "Autopilot not fitted in this aircraft" Beeky
