So....since the iceberg was near Titanic, why did the crew not load each boat with survivors, take them quickly to the floating iceberg, have passengers stay on iceberg, go back and get more passengers, repeat???
As your post has been moved to this thread by one of the moderators, I would encourage you to go back and read the responses to the same question which was posed in 2004. My first response was as follows:
Icebergs are notoriously unstable due to melt off and can turn turtle on you at any second with no warning.
Icebergs also break up without warning. Either of these would be very bad news for anybody trapped on same.
Actually finding an iceberg in the dead of the night where visibility is extremely poor under the best of conditions. IOW, good luck finding one that would be suitable
In order to transfer people from the ship to an icefloe would involve using the boats to ferry people from the ship to the icefloe. This would be an extremely time and labour intensive exercise. Chances of getting everybody off; Zero!
The time lost in searching for an icefloe to put people off on an icefloe would result in a delay in evacuating the ship which would have cost more lives
As Adam pointed out, no sane skipper would risk approaching an iceberg because of what could and would be waiting submerged to do further damage to the hull. This is the last thing you want when uncontrollable flooding is a problem.
The icefield was a very extensive one so this would make searching out the "right" iceberg a formidable problem for any rescue vessels coming to the scene.
The iceberg observed by witesses on the Titanic was a rather mountainous and craggy mass. One that would have been difficult in the extreme if not impossible for even the most able bodied to climb on.
With seas picking up in the morning, there is the risk that any boats used to get anyone off would be dashed and broken up against the ice.
With nothing to secure the boats to the berg, they would have been lost fairly early on, leaving anyone on the ice stranded.
You'll see from reviewing the whole of this thread that the idea is a non-starter.