Hi Jen / Trent.
(Reference: Titanic - The Full Story Of A Tragedy by Michael Davie.)
Davie states that it emerged at the American enquiry that
Lightoller and Lowe, (and therefore the other Officers as well?), feared that it would be hazardous to fill up the boats when they were still suspended from the davits, as either the boats might "buckle up" or the davits might give way.
Harland and Wolff had tested the davits and established that they would carry the weight of the lifeboats filled to capacity, but no-one had seen fit to tell the Officers of this fact! (Although I would've thought Smith would have been aware of this, surely?)
I remember in Titanic 1997 there was a scene where Thomas Andrews tells
Lightoller to fully fill the boats, and Lightoller expresses the above fear. Not sure if this actually happened though.
Lightoller's plan was to partly fill the boats and then send them to an open hatch at the bottom of a gangway, to fill up with more passengers. He sent a team of men to open the gangway doors, but they were never heard from again.
I deduce from the above information that in older ships, there existed a real danger of either lifeboats collapsing under the full weight of passengers when still suspended in the davits, and/or the davits wouldn't stand the strain. So, Lightoller and Lowe could have been working under an old and incorrect assumption: It's better to save some passengers, rather than break the boats and lose them all.
Perhaps a non-landlubber can confirm the fear of collapsing boats/davits which may have existed pre-1912?
Regards,
Paul.