reply to post by billdadobbie
There was no "braking" as much as there was a burn which converted the translunar insertion trajectory, or TLI (the trajectory the was set upon
leaving Earth orbit) into a lunar orbital trajectory -- or Lunar orbital insertion (LOI).
The translunar insertion trajectory was one that could be efficiently converted into a lunar orbit with minimal fuel used. That same TLI trajectory
was also specially calculated to easily allow for a free return to Earth (by sling-shotting around the Moon) if the mission needed to be aborted (such
as was the need for Apollo13).
But in short, there was not a "braking" maneuver that was made with a big engine burn when they got to the Moon, but more of a "nudge" into lunar
orbit with a relatively smaller burn.
Also, I'm not sure what you mean by
"...or did they float up?"
edit on 5/19/2013 by Soylent Green Is People because: (no reason given)