Wirbelwind

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"Wirbelwind" at CFB Borden

Flakpanzer IV "Wirbelwind"
General characteristics
Crew 5
Length 5.89 m
Width 2.88 m
Height 2.76 m
Weight 22 tonnes
Armour and armament
Armour 10 - 80 mm
Main armament 1x 2 cm Flakvierling 38 L/112.5
3200 rounds
Secondary armament 1x 7.92 mm Maschinengewehr 34
1350 rounds
Mobility
Power plant 12-cylinder Maybach HL 120 TRM
272 hp
Suspension leaf spring
Road speed 40 km/h
Power/weight 12.36 hp/tonne
Range 200 km

The Flakpanzer IV "Wirbelwind" (Whirlwind in German) was an anti-aircraft vehicle based on the Panzer IV. It was developed in 1944 as a successor to the earlier AA tank Möbelwagen.

In the first years of the war, the Wehrmacht was not as interested in developing a good AA vehicle, as the Luftwaffe had total air superiority. But, as the allies developed and began to use more powerful aircraft, the Germans realised that they must not only have stationary Flak guns, but also mobile AA guns to protect vehicle convoys etc.

The Panzer IV's turret was removed and replaced with an open-top, nine-sided turret which housed a quadruple 2 cm Flakvierling 38 L/112.5. A closed-top design would have been preferable, but this was not possible due to the heavy smoke generation of the four flak guns. Production of the tank was carried out by Ostbau Werke in Sagan, Silesia.

By the time the Wirbelwind was introduced to service, 2 cm shells were no longer very effective against aircraft[citation needed]; the Wirbelwind was soon replaced by the Ostwind which was equipped with a single 3.7 cm FlaK 43.

The armor and rapid fire from the four guns of the Wirbelwind was also very effective against infantry. One Wirbelwind was sufficient to take out large numbers of enemy infantry.

It is believed that either 87 or 105 Wirbelwinds were produced during the war, but due to discrepancies between the recorded production numbers at Ostbau Werke and Wehrmacht service records, the exact number will probably never be known. In any case, there were too few of them to have any major influence on the war.

Wirbelwind at CFB Borden
Wirbelwind at CFB Borden

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German armored fighting vehicles of World War II
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German armored fighting vehicle production during World War II