Milt: I have spoken to my friend and here are a few more details that may be of interest.
The centre section cabin was known as the bomb room, it filled the fuselage at its widest point..
There were doors on each side which opened to allow the weapon racks on each rail to be run in or out.
The racks were run out, the arming barge would position under the wing, and the bombs/depthcharges were winched up to the racks.
The loaded racks were then run into the bomb room ( by electrical powered winch) and the doors were closed.
When a drop was imminent the pilot would press a button to open the side doors, then another one to run the weapons out to position under the wings.
No extra weapons were carried internally, so no reloads when those on the racks had been dropped.
There was another method used sometimes when they were bombing during the Malayan emergency.
The bomb room would be loaded with boxes of small anti-personnel bombs of about 25lb size.
When they reached their designated area of jungle the side doors were opened and the crew would throw these bombs out as fast as they could. It sounds rather unorthodox but far more entertaining than pressing a release button.
