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Flakpanzer IV Wirbelwind / Ostwind(Anti-Aircraft Tank)

作者:achtungpanzer 来源:panzer 日期:2007-3-1 0:39:11 浏览: 次

Wirbelwind and Ostwind were fitted with very similar (especially designed) open-top (Wirbelwind's turret had 9 side panels and Ostwind's had 6 side panels) turrets mounted in the place of standard turrets. Ostwind's turret was nicknamed Keksdose - cookie tin. Main difference was that Wirbelwind was armed with quadruple 20mm Flak 38 L/112.5 guns while Ostwind was armed with single 37mm Flak 43 L/89 gun (both could be used against ground targets as well). 20mm Flak proved to be less effective than 37mm Flak and was eventually replaced by it. Both were produced by Ostbau Works in Sagan, Silesia in limited numbers due to the material shortages and the fact that Ostbau Works moved to facilities of Deutsche Eisenwerke in Teplitz and Duisburg due to danger of being overrun by the Soviets. Overall from May to November of 1944, only 87(105) Wirbelwinds were made, contrary to only 44(43) Ostwinds produced from July 1944 to March of 1945. Both vehicles were issued to Flugabwehrzug (AA platoons) units of Panzer Divisions. There were never enough of them to equip frontline units, which were in the need for adequate mobile AA defense. Both proved to be very effective against low flying aircraft. The interesting fact is that prototype Ostwindwas combat tested by 1st Waffen SS Panzer Division "Leibstandarte SS Adolf Hitler" during the Ardennes Offensive (December 16 to 22 of 1944) and returned to factory undamaged.

There also plans to increase the firepower of both Wirbelwind and Ostwind. In late 1944, it was planned to rearm existing Wirbelwinds with four 30mm MK103/28 or MK103/38 guns, capable of firing 1600 rounds per minute. In December of 1944, Ostbau produced only one prototype designated Zerstorer 45 (Destroyer 45) - 3cm Flakvierling MK103/108 auf Sfl PzKpfw IV. Same concept was incorporated into rearming of the Ostwind with two 37mm Flak 43 or Flak 44 guns or 30mm Mauser MK103 cannon. In January of 1945, Ostbau was able to produce one prototype designated Ostwind II (3.7cm Flakzwilling 44 auf Sfl PzKpfw IV) , while 100 were ordered. In 1945, it was decided to utilize obsolete at the time PzKpfw III and mount it with Wirbelwind (designated as 2cm Flakvierling 38 auf Slf PzKpfw III) or Ostwind (designated as 3.7cm Flak 43 auf Slf PzKpfw III) turrets, designated as Flakpanzer III. 90 were ordered but the end of the war terminated the production.Eventually, all of Flakpanzers were to be replaced by newly designed Flakpanzer IV Kugelblitz in the early 1945.

Wirbelwind

Flakpanzer IV Wirbelwind

Specifications

Model:	Wirbelwind	Ostwind
Weight:	22000kg	25000kg
Crew:	5 men	6 men
Engine:	Maybach HL 120 TR 112 / 12-cylinder / 272hp	Maybach HL 120 TR 112 / 12-cylinder / 272hp
Speed:	38km/h	38km/h
Range:	Road: 200km Cross-Country: 130km	Road: 200km Cross-Country: 130km
Capacity:	470 liters	470 liters
Lenght:	5.92m	5.92m
Width:	2.90m	2.95m
Height:	2.76m	3.00m
Armament:	4 x 20mm Flak 38 L/112.5 1 x 7.92mm MG34 (1 x MG34 - hull)	37mm Flak 43 L/89 2 x 7.92mm MG (1 x MG34 - hull) (1 x MG 34/42 - carried inside)
Ammo:	20mm - 3200 rounds 7.92mm - 1350 rounds	37mm - 1000 rounds 7.92mm - 1350 rounds
Armor (mm/angle):	Front Turret: 16/25 Front Superstructure: 80/10 Front Hull: 80/12 Side Turret: 16/36 Side Superstructure: 30/0 Side Hull: 30/0 Rear Turret: 16/12-22 Rear Superstructure: 20/11 Rear Hull: 20/9 Turret Top / Bottom: open Superstructure Top / Bottom: 12/85-90 Hull Top / Bottom: 10/90 Gun Mantlet: 10/round	Front Turret: 25/37 Front Superstructure: 80/10 Front Hull: 80/12 Side Turret: 25/30 Side Superstructure: 30/0 Side Hull: 30/0 Rear Turret: 25/30 Rear Superstructure: 20/11 Rear Hull: 20/9 Turret Top / Bottom: open Superstructure Top / Bottom: 12/85-90 Hull Top / Bottom: 10/90 Gun Mantlet: 25/round