The ship rolled slowly to port, with the speed of the roll increasing over time.
Water came onto the port boat deck while
collapsible B was being manhandled off the roof of the officers quarters. When it landed upside down on the boat deck the men trying to right it were working in water, a sight observed by Lightoller and Hemming. I've always suspected tht the upside-down condition of
collapsible B was in part due to the water on the boat deck.
Collapsible A could not be sent down from the roof because of the port list. In effect, the side wall of the officers quarters got in the way. Oars had to be used as makeshift skids. The amount of the list was sufficient that most of the weight of the boat was carried by the oars which apparently splintered.
Gracies leap to the roof of the first class entrance also illustrates the effect of the list. He could not have accomplished such a leap, even assisted by a wave, unless the wall was slanted. In effect, he was washed up a sloping beach and not carried vertically up a cliff.
Joughin said he went into the pantry at the base of funnel #3 for a drink--of water. While there, he heard the breakup taking place almost beneath his feet. At the same time he heard people running aft on the boat deck overhead. These people were undoubtely trying to escape the wave that Gracie used in his leap.
Joughin worked his way aft, saw people tossed into the port waterways, and eventually found himself on the outside of the shell plating. His narrative is pretty straight-forward with a ring of truth. He seems to have floated off as the ship went out from under him.
-- David G. Brown