RE: Will the real Jpz IV/70 please stand up...
The Wikipedia variants....
Variants
The 0-Serie preproduction vehicle at Deutsches Panzermuseum Jagdpanzer IV 0-Serie
with 7.5 cm Pak 39 L/43: a small number of these were built as the preproduction (0-Serie) probably in December 1943.[1]
Jagdpanzer IV (Sd.Kfz.162[1])
with 7.5 cm Pak 39 L/48, developed under the name Sturmgeschütz neuer Art mit 7.5 cm Pak L/48 auf Fahrgestell PzKpfw IV, with 769–784 produced in January 1944 - November 1944.[1]
Panzer IV/70 (V) (Sd.Kfz.162/1[1])
was one of two variants armed with the same Pak 42 L/70 gun. The (V) stands for the designer, Vomag. The most produced version, with 930–940 built in August 1944 - April 1945.[1] Equipped with a long, powerful L/70 7.5cm anti-tank gun that could outrange opposing Allied tank weapons, the Jagdpanzer IV /70(V) Lang proved a formidable foe following its introduction late in World War II. The "Lang" (German for "long") in its name was added to distinguish it from its predecessor with a shorter L/48 7.5cm gun
Panzer IV/70 (A) (Sd.Kfz.162/1[1])
the other Pak 42 L/70 armed Jagdpanzer IV. In order to send Pak 42 L/70 armed vehicles to the front as soon as possible, in July 1944 Hitler ordered an interim solution to speed up Nibelungenwerke's transition from Panzer IV production to Panzer IV/70 production. "A" stands for Alkett, a manufacturer of the StuG III, that was ordered to redesign the Jagdpanzer IV superstructure to be mounted onto a standard Panzer IV chassis. The Vomag design used a modified chassis permitting a very low silhouette, mounting the superstructure onto the original Panzer IV chassis required additional vertical steel plates mounted onto the chassis to counter height differences. The resulting vehicle was about 40 cm taller and lacked the sharp edged nose of the Vomag variant. Only 278 were built by Nibelungenwerke from August 1944 to March 1945.
Minor modifications and improvements were made throughout the production runs of all variants, as well as several field improvements, the most common being the addition of armor sideskirts.
Originally the Jagdpanzer IV's gun had a muzzle brake installed, but because the gun was so close to the ground, each time it was fired, huge dust clouds would rise up and betray the vehicle's position, leading many crews to remove the muzzle brake in the field. Later variants dispensed with the muzzle brake.
Early vehicles had zimmerit applied to the hull to protect against magnetic mines, but this was discontinued after about September 1944. Later vehicles had three return rollers rather than the original four, and adopted the twin vertical exhausts typical of the late Panzer IV series. Some late vehicles also had all-steel road wheels on the first couple of bogies on each side.
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There would seem to be two variants produced in number, the L48 and the L70....but...doesn't explain the DF difference....? should be a pretty substantial AT difference between those two guns...the latter being a panther gun, the former the later PzIVh gun? for IVf?
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