Concorde had water deflectors fitted to the main landing gear and to the nose gear, and they were there to control water from the wheels. They were fitted all the time the aircraft were in service, ie 1976 onwards.
After an incident I believe in the 1980s a recommendation was made that the Main Wheel water deflectors should be strenghtened with metal reinforcing. This was only a recommendation and BA
took it up.
Interestingly another rear engine aircraft, the VC
-10, had rubber chines moulded into the wall of it's nose wheel tyres, again to try and suppress the water wave from these tyre, and so prevent water injestion by the engines.
[Edited 2006-08-26 21:46:59]