Was the tail-gunner postion on the B-29 ever removed?

Question

Was the tail-gunner postion on the B-29 ever removed?

I have two sources saying different things about the fate of the B-29 tail gunner, one says that the position was removed and another talks about it later in the war... so which was it... and I am asking about the B-29, no suffix, the most produced model of the B-29 during WWII

Answer 1

The tail armament was originally a 20mm cannon and 2x.50 caliber MGs.  The 20mm was removed due to continuous problems with the feed (it kept jamming).  

The tail guns were left in, but the other turrets, were removed to save weight, and get some more knots. B29s quit flying massed daylight missions by the fall of '44.  They switched over to a more effective night tactic.  The Japanese had a poor night-fighter "IADS", and the guns were found to not be needed.

The confusion results in authors confusing issue one: removing the 20mm gun with issue 2: change in tactics.  Such authors usually do poor research, if any.

Answer 2

Removed

Answer 3

The position was removed once the B-29 evolved.

Answer 4

It was replaced by a radar directed 20mm on at

least one later model.

Answer 5

General LeMay had the guns removed from his B29s to improve their performance. But I think this did not include the tail guns, they were the only ones left in. Or, they were the easiest to replace after so were put back. The B29 was faster and could fly higher than almost every Japanese fighter, so the guns were largely unnecessary. When they started bombing at lower altitudes for accuracy they had massive fighter escorts, but that may be when the tail guns were put back in.