Scott35:
I was looking at your drawings on WRM but did not see any control for these drawings.
Are they supposed to drum-type controllers ? or run from the ground via push-buttons ?
I worked on a lot of AC cranes with this type of set-up but I never seen one with a DB for this type of application. Especially with overhauling loads and large gear-boxes.
A lot of them use Regenerative braking and if that failed the operators would reverse the controller in an emergency situation.
WOC
