| Year | January 1944 |
| Weapon Type | Light Anti-Aircraft Gun |
| Origin & Designer | Germany/Rheinmetall |
| Numbers Produced | 6.846 |
| Crew | [@crew] |
| Calibre | 37mm (37x263) |
| Elevation | -7° to +90° |
| Traverse | 360° |
| Breech | Gas Operated Bolt |
| Recoil | [@recoil] |
| Gun Sight | Flakviser 3x8 |
| Gun Mount | Triangular Platform |
| Carriage | Sd. Ah. 57 |
| Trailers | [@trailers] |
| Gun Shield | 10mm |
| Armoured Plate | [@armoured_plate] |
| Barrel Length | 2.112mm (L/57) |
| Overall Length | 3.30m |
| Width | 2.40m |
| Height | 2.10m |
| Weight | Weight in Traction: 4.850 kg Weight in Action: 2.500 kg |
| Round Weight | 0.742 kg (HE) 0.68 kg (AP) |
| Muzzle Velocity | 820 m/s (HE) 45 m/s (AP) |
| Feed | 8 Round Clip |
| Magazine Capacity | [@magazine_capacity] |
| Practical Rate of Fire | [@practical_rate_of_fire] |
| Rate of Fire | 250 r.p.m. |
| Maximum Rate of Fire | [@maximum_rate_of_fire] |
| Maximum Ceiling | 4.800m |
| Maximum Ground Range | 6.585m |
| Maximum Range | [@maximum_range] |
| Armour Penetration | 33mm @ 500m @ 30° |
| Traction | Motorised (Sd.Kfz 11) |
| Variants | FLAKZWILLING 43: Type: Twin Barrelled version Year: 1943 Amount: 928 Weight: 2.780 kg Length: 5.25m Height: 2.11m Width: 2.64m Rate of Fire: 300 r.p.m. Carriage: Sd. Ah. 206 |
| Notes | The Flak 43 was an improved version of the Flak 37 and was modified by adding a new gas operated breech, which improved the rate of fire. It was also lighter than the previous weapons. |