| Flakpanzer IV "Wirbelwind" | |
|---|---|
 Wirbelwind at CFB Borden | |
| Type | Self-propelled anti-aircraft gun |
| Place of origin | Nazi Germany |
| Production history | |
| Designed | 1944 |
| Manufacturer | conversions by Ostbau Werke |
| Produced | 1944-1945 |
| No. built | 87-105 |
| Specifications | |
| Mass | 22 tonnes (48,501 lb) |
| Length | 5.89 m (19 ft 4 in) |
| Width | 2.88 m (9 ft 5 in) |
| Height | 2.76 m (9 ft 1 in) |
| Crew | 5 (commander/gunner, two loaders, driver, radio operator) |
| Armor | 10 to 80 mm (0.39 to 3.15 in) |
Main armament | 1 × quad 2 cm Flak 38 |
Secondary armament | 1 × 7.92 mm MG 34 Panzerlauf |
| Engine | 12-cylinder Maybach HL120 TRM 300 PS (296 hp, 221 kW) |
| Power/weight | 13.6 PS/tonne |
| Payload capacity | 3,200 rounds 2 cm 1,350 rounds 7.92 mm |
| Suspension | Leaf spring |
Operational range | 200 km (124 miles) |
| Maximum speed | 40 km/h (25 mph) |
The Flakpanzer IV "Wirbelwind" (Whirlwind in English) was a German self-propelled anti-aircraft gun based on the Panzer IV tank. It was developed in 1944 as a successor to the earlier Möbelwagen self-propelled anti-aircraft gun.