Sd. Kfz.251/21 questions......

Discussions on the vehicles used by the Axis forces. Hosted by Christian Ankerstjerne
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Erich
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Post by Erich » 31 Mar 2002 01:18

Ah, secrets eh...... ? (stealth maneuvers)

E 8)

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Takao
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Post by Takao » 31 Mar 2002 08:49

What Fred did not mention was the front nose plates were 14.5mm and were sloped, but in am not sure of the degrees. On the Ausf C & D the nose was redesigned with the front plate thickness still the same, but the slope was 22 degrees.

As for numbers, they were right here at the main site all along :oops:
http://www.skalman.nu/third-reich/prod-tanks.htm

As for the turret armor it is hard to say from the overhead view on the turret mount, the front armor shield appears to be 3-4 times as thick as those plates from the side. A ballpark figure would be 15-20mm front & 5-8mm on the sides.

run a search on yahoo and enter SdKfz 251/21, you can find some nice sites, but you have to hunt for them.

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Fred
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Post by Fred » 31 Mar 2002 11:02

armour Hull(mm/angle): Front:15/22* Side:8/35* Rear:8/33* Bottom:6/90*

Fred.

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Andy H
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Post by Andy H » 31 Mar 2002 11:19

The following is from the Osprey Vanguard series No 32 on the SdKfz 251.

“The 251/21 represented a cheaper, more expedient attempt at a new AA vehicle, and proved to be the most effective AA version of the 251.
There were field modifications made on Ausf C vehicles which approximated the /21, but all production vehicles were built on the Ausf D chassis. The interior fittings-rifle racks, front & rear seats, etc-were removed and a modified naval pedestal mount carrying three 15cm MG 151 aircraft machine guns was mounted on the floor were the front seats had been. The Kriegsmarine had developed the ‘Flakdrilling Sockellafette’ (triple AA gun mount) as an inexpensive defence gun installation. As the Luftwaffe required heavier calibre guns, large quantities of the excellent Mauser 15mm MG 151 were made available for other purposes. In 1944 additional quantities of 2cm MG 151/20 machine guns also became available as the Luftwaffe increased the use of 3cm cannon. Both 15cm & 2cm (20mm) MG 151’s were used in the SdKfz 251/21.
The mounting consisted of a fixed base plate with a rotating conical pedestal extending up to the cradle assembly. The cradle held all three MG 151’s in aircraft-type buffer assemblies. The guns were mounted offset toward the right side to allow clearance for the belts and feed chutes. The ejected shell cases and belt links were collected on the central pedestal and rotated with the entire mount.
Three chests of ammunition were carried on the pedestal and rotated with the mount. The centre chest held 400 rounds of mixed HE, tracer & AP ammunition. The outer chests held 250 rounds. The centre chest was larger because the middle gun was more difficult to reload.
The gunner sat on a metal seat suspended from the rear of the gun mount and moved the entire mount manually; there were no gear drives or handwheels. Two hand grips, one on each side of the mount, contained triggers for firing the guns. Early gun mounts used reflector-type optical sight, but later versions used simpler speed ring sight. Later vehicles also had different armour around the guns & cradle assembly.
Additional armour was added to the body of the vehicle across the rear edge of the driver’s roof, and along the forward upper edges of the sides. Brackets were provided for the rear armour brace across the body behind the gunner, but this was generally removed. Ammunition was carried in chests at the rear of the vehicle. Total capacity was 3,000 rounds per vehicle. The rear MG42 was retained for vehicle defence.”

Hi Ho Silver Away :D

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Erich
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Post by Erich » 31 Mar 2002 22:41

Thanks CY for the additional info from the Osprey book. I'll have to look for the title. But anyway this will do nicely for the files.

E

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