Jim Currie
Member
Titanic's engines did not stop, let alone reverse, at the time of collision. Multiple witnesses can be cited to that effect. Best estimates are that they ran on from 1 to 2 minutes after the allision took place before they stopped. The rudder would have remained quite effective during that time.
Actually that Best estimate comes from Trimmer Dillon because he was there.
"3720. Was anything done to the engines? Did they stop or did they go on? A: - They stopped.
3721. Was that immediately after you felt the shock or some little time after? A: - About a minute and a half.
However, Barratt in boiler room 6 said he had the order to shut down just before the crash came. This means that just before Barratt received that order, an engine order had been given and was probably being executed.
Evidence shows that greasers working near the telegraphs acknowledged the bridge command. I read elsewhere that it took about 20 seconds to bring the main engines to a complete halt. If the engineers on duty started the process 10 seconds after the Greasers reacted then it is quite possible that the engines were already slowing down seconds after the iceberg passed the bridge. 20 seconds after that they were stopped.
In fact, if the engine order was given before impact then a minute and a half is far too long - even if the engineers were up in the mess room. Believe me when I tell you that such an order would have been obeyed within half a minute and there's no way it took a full minute for the engines to wind down and come to a standstill after that.
Define "Quite effective". To carry out the manoeuvre you have alluded to in the past, the rudder would have needed to be fully effective. Quite effective would not have been anywhere good enough, Sam. Nor would it be any use in turning Titanic's head to the North
The rudder would begin to lose effectiveness the minute the engine order was executed. Keep in mind that the turbine would have been free-wheeling at the time and the cross-wash over the rudder from the wing propellers would have been dropping rapidly. In addition, the flow over the fairings covering the wing shafts would have added to the turbulence round the rudder blade.
Besides he foregoing, you have not factored-in the possible effect of Titanic's forward momentum being interfered-with on one side by contact with the iceberg.
In addition and after all that, we are to believe that with this rapidly failing steering and forward propulsion condition, Titanic somehow managed to turn her starboard bow through a current setting at 1+ knots against it. Really?
Given what we know, I have never bought that scenario Sam.
However you are the expert in these matters. If you can demonstrate to me how it was physically possible for Titanic to have made a positive, continuous turn to the North West while these conditions prevailed and using a not effective and fully functioning but quite an effective rudder. then, as in the past, I will happily bow to your superior engineering knowledge
Jim C.