Any ideas on this Achilles wireless setup

[Jakko Westerbeke]

Originally Posted by David Dunlop

the M10 turret, if I recall correctly, was manual traverse only

Correct, the traversing wheel almost directly operates on the rack mounted in the hull, around the turret opening — see the TM. No traverse rate seems to be indicated in the manual, though.

[Jack Geratic]

Thank you Jakko for that manual link.

The Dennis Oliver publication also does not mention the speed at which the turret could be rotated by hand, but was certainly a disadvantage of the design. Wiki footnotes on the M10 attribute Steve Zaloga giving approximately 80 seconds to rotate the turret a full 360 degrees.

About the sloped terrain effects on the function of the vehicle, Dennis Oliver only mentions it made it difficult to rotate the turret when parked on a slope of more than four degrees. This problem was the main reason for adding weight to the turret rear. Initially the counterweight was about 3700 pounds. When a new turret was designed to afford more space to the crew, a new counterweight was also introduced and was lighter at 2500 pounds.