| Year | August 1944 |
| Vehicle Type | Self-Propelled Quad AA Gun |
| Origin & Designer | Germany/Ostbau |
| Numbers Produced | 87 |
| Crew | 5 (Commander/Gunner, 2 x Loaders, Radio Operator & Driver) |
| Main Armament | 1 x 20mm L/112.5 FlaKvierling 38 Quad |
| Main Armament | [@sponson_traverse] |
| Elevation | -10° to +90° |
| Turret Traverse | [@turret_traverse] |
| Gun Traverse | 360° |
| Gun Mount | [@gun_mounts] |
| Maximum Range | [@maximum_range] |
| Armour Penetration | [@armour_penetration] |
| Gun Sight | Flakviser 40 |
| Secondary Armament | 1 x 7.92mm MG34 (Bow) |
| Smoke Discharger | [@smoke_discharger] |
| Ammunition Carried | 3.200 x 20mm & 1.350 x 7.92mm |
| Height | 2.76m |
| Width | 2.88m |
| Length | 5.92m |
| Combat Weight | 22.000 kg |
| Ground Clearance | 0.40m |
| Fording Depth | 1.0m |
| Trench Crossing | 2.20m |
| Obstacle Clearance | 0.60m |
| Climbing Ability | 30° |
| Radio | FuG-5 |
| Armour | Hull Front: 50mm Hull Sides: 30mm Hull Rear: 20mm Hull Top: 12mm Hull Bottom: 10mm Gun Mantle: 10mm Turret Front: 16mm Turret Sides: 16mm Turret Rear: 16mm Turret Top: Open |
| Engine | Maybach HL 120 TR 112 (Petrol) |
| Transmission | 6 Forward & 1 Reverse |
| Maximum Road Range | 200 km |
| Maximum Cross Country Range | 130 km |
| Maximum Water Range | [@maximum_water_range] |
| Maximum Road Speed | 40 kph |
| Maximum Cross Country Speed | 16 kph |
| Maximum Water Speed | [@maximum_water_speed] |
| Variants | [@variants] |
| Notes | The Wirbelwind (Whirlwind) was also built on the chassis of the Panzer Mk IV and these like the ones used to build the Möbelwagen, were initially sent back to be overhauled. It mounted a quad 20mm Flakvierling 38 which was housed in a nine sided turret which could fully revolve at 360°. The turret itself was open topped and thinly armored. It had a good rate of the fire and could also be used to engage ground targets. The Wirbelwind was used to provide anti-aircraft cover for armoured columns and located in anti-aircraft platoons issued tank regiments, it mainly saw service in Western Europe. |