3 cm-Drehkranz-Doppellafette M 44U

[jopaerya]

Found this name on internet on several site's , but could this be only the turret ??
Is there a type known of the 3 cm flak gun used in this turret ??

2. Turrets
Each turret is equipped with a twin 30MM machine gun mount, two pressure tight ready service tanks for 250 rounds each, a seat for the gunner, foot controls and related hydraulic gear for gun firing, and hand controls and related operating gears for gun elevation and turret turning.
There is a scuttle in the top of the turret, through which the gunner's head protrudes. The forward face of this is protected by a shield which is interlocked with the guns and rises as the guns are elevated.
The turret is carried on a ball bearing race and the carrier ring on the fairwater is fitted with an internally toothed ring gear which engages the spur gear associated with the turning motor.
Stops are fitted to limit elevation to 90 degrees, and depression to 10 degrees, and to limit rotation to approximately 170 degrees each side. The forward turret can be locked at 0 degrees relative, and the after turret at 180 degrees relative. The guns are locked at 5 degrees depression.
The turrets are, according to the specifications, of the same special steel (Wsho/Mo) as the bridge armor plating, and of the same thickness, 17MM (.67 in.).

3. Turret Control
There is a foot pedal below the gunner's seat, and a combination hand grip and hand lever at the proper elevation before him. Operation of the foot pedal opens and closes ports in a piston valve, thereby connecting the hydraulic supply line to the trigger mechanism of the guns. The hand lever, when turned in a horizontal plane, opens ports in a piston valve which controls the admission of oil to a hydraulic motor. This motor operates through a reduction gear train to a spur gear which engages the ring gear aforementioned, and turns the turret. By turning the hand grips of the lever in a vertical plane, ports on another piston valve are opened, connecting the hydraulic supply line to a second hydraulic motor which operates through a gear train to increase or decrease the angle of elevation as desired.
The turret, with its training and elevating gear, is very simple mechanically, and is understood to have been satisfactory except that the amount of hydraulic piping is excessive, the hydraulic operating units are exposed to sea pressure, flexible oil piping is required, and the result has been that the hydraulic turret gear has been the major source of contamination of the hydraulic system with salt water.

Source information http://www.uboatarchive.net/Design/Desi ... ypeXXI.htm

[jopaerya]

From N.A. Kew

[Manuferey]

Jos,

It would have to be the 3 cm Flak 303. See here:
http://www.achtungpanzer.com/kugel.htm#kugel

Emmanuel

[jopaerya]

Thanks Emmanuel