Flakpanzer IV
1944 German self-propelled anti-aircraft gun family

Flakpanzer IV is the general designation for a series of self-propelled anti-aircraft guns based on the Panzerkampfwagen IV chassis. They are, in order of development:
Möbelwagen (furniture van) – Originally developed as the Flakpanzer 38(t); entered into production in 1943.
Wirbelwind (whirlwind) – Installed an open-top rotating turret; introduced at the end of 1943.
Ostwind (east wind) – Ordered in August 1944 to replace the Wirbelwind.
Kugelblitz (ball lightning) – First prototypes delivered in February 1945.
The public source identifies “Flakpanzer IV” as 1944 German self-propelled anti-aircraft gun family. This brief keeps that definition visible, then builds a research path around Flakpanzer, German and self-propelled.
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This entry incorporates text from “Flakpanzer IV” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.