3.7cm FlaK 36 auf Fahrgestell Zugkraftwagen 5t (Sd Kfz 6/2)

History: The Büssing-NAG BN9 (Zgkw 8t) was built from 1939 to 1943, and was used as the basis of the self-propelled 3.7cm FlaK36. The rear superstructure of the vehicle was specially designed for the FlaK gun so that the sides folded down to provide an adequate platform for all-round traverse. Ammunition for the 3.7cm FlaK was carried in a single-axle trailer behind the Zgkw 8t. When the latter was phased out of production in 1943, the 3.7cm was mounted on the Zgkw 8t, as a temporary solution. The sWS was intended to carry the 3.7cm FlaK43.

Type	Anti-aircraft cannon
Place of origin	Nazi Germany
Service history
In service	1936–45
Used by	Nazi Germany, Romania, Bulgaria
Wars	World War II
Production history
Designer	Rheinmetall
Produced	1936–45
Number built	20,243
Variants	BK 37 aircraft gun, 3.7 cm Flakzwilling 43
Specifications (3.7 cm Flak 43)
Weight	2,000 kg (4,400 lb) (transport)
Crew	6–7
Shell	37 × 263 mm. B
Shell weight	623–659 grams (1.373–1.453 lb)
Caliber	37 millimetres (1.5 in)
Barrels	57 calibers
Breech	gas-operated bolt
Carriage	three-legged platform
Elevation	-7° 30' to +90°
Traverse	360°
Rate of fire	150 rpm (practical), 250 rpm (theoretical)
Muzzle velocity	770–820 m/s (2,500–2,700 ft/s)
Effective firing range	4,800 m (15,700 ft) (anti-aircraft)
Maximum firing range	6,500 m (7,100 yd) (ground range)
Feed system	8-round clips

Combat service: Issued to Luftwaffe FlaK units on all fronts.

Type	Half-track artillery tractor
Place of origin	Nazi Germany
Service history
In service	1938 - 1945 (Nazi Germany)
Used by	Nazi Germany, Italy, Bulgaria, Yugoslav Partisans (captured) Czechoslovakia (postwar), Allies (postwar)
Wars	World War II
Production history
Designer	Krauss-Maffei
Designed	1934
Manufacturer	Krauss-Maffei, Borgward, Österreichische Saurer-Werke AG, Breda (Breda 61)
Unit cost	36,000 Reichsmark
Produced	1938 - 1944
Number built	12,187
Variants	Sd.Kfz. 7/1, Sd.Kfz. 7/2, Feuerleitpanzer auf Zugkraftwagen 8t, Breda 61
Specifications
Weight	11.53 tonnes
Length	6.85 m (22 ft 6 in)
Width	2.35 m (7 ft 9 in)
Height	2.62 m (8 ft 7 in)
Crew	1 driver
Passengers	11
Engine	Maybach HL 62 TUK, six-cylinder petrol 135 PS, (133 hp, 99 kW)
Power/weight	12.1 hp/tonne
Payload capacity	1,800 kg
Suspension	Torsion bar
Fuel capacity	215 liters
Operational range	250 km (160 mi) on roads 120 km (75 mi) off-road
Speed	50 km/h (31 mph) on roads