Hello, since the start of urgency after spotting the iceberg was very high, the engine room staff were called to put the engine in reverse, could the reverse procedure of been carried out so fast that damage occurred to the engines? For instance, before reversing, the valves for the Turbine must be closed so that all exhaust steam goes directly to the condensers, the valves were large and steam driven, it can take upwards of 20 minutes to an hour (depending on size) to close or open a large water valve according to my dad who used to work with large valves. Could the turbine of actually ran in reverse? I don't know much about Reaction Turbines but if the turbine was running in reverse and damaging itself, that could explain why the steering was so slow. According to the article on "Cold Starting Titanic" the ship is perfectly capable of running in reverse albeit with a slight vibration from unbalanced screws, could this of been the vibration felt by the passengers? I think the iceberg would of glided along the side of the ship and not caused any vibration. I also think the pistons in the main engines started getting off-balanced and contacting the top of the cylinder while it was spinning down, causing similar effects to the Judder you feel in an automobile when you stop the engine by turning the key. Word's on this theory will be appreciated.