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10.5 cm Flak 38
Flak 38 01.jpg
A Flak 38 105 mm anti-aircraft gun at a Military museum in Belgrade
Type Anti-aircraft gun
Place of origin Nazi Germany
Service history
In service 1937–45
Used by  Nazi Germany
Wars World War II
Production history
Designer Rheinmetall
Designed 1933
Manufacturer Rheinmetall
Produced 1936–45
Number built Approx 2,000[citation needed]
Specifications (Flak 39)
Weight 10,224 kg (22,540 lbs)
Length 6.648 m (21 ft 10 in)
Barrel length 5.547 m (18 ft 2 in)
Crew six

Shell 105 × 769 mm. R
Caliber 105 mm (4.13 in)
Barrels One, 36 grooves with right-hand increasing twist from 1/48 to 1/36
Breech Horizontal semi-automatic sliding block
Recoil Hydropneumatic
Elevation -3 to +85
Traverse 360
Rate of fire 15–18 rounds per minute
Muzzle velocity 881 m/s (2,890 ft/s)
Effective range 17,600 m (19,247 yds) ground target
9,450 m (31,003 ft) effective ceiling
Maximum range 11,400 m (37,401 ft) maximum ceiling

The 10.5 cm SK C/33[Note 1] was a German anti-aircraft gun used during World War II by the Kriegsmarine on the Bismarck and Scharnhorst classes of battleships as well as the Deutschland- and Admiral Hipper-class cruisers.

They were mounted in pairs on an electrically powered tri-axial mounting, intended to compensate for the motion of the ship and maintain a lock onto the intened target. The mounting was not properly waterproofed so as the mountings were opened to the weather and sea swell, suffered from a high maintenance burden.

It was later adapted for Luftwaffe as a competitor to the famed 8.8 cm FlaK 18 as the 10.5 cm FlaK 38. In this role it proved to be too heavy for field use while having roughly similar performance as the 88mm, so was used primarily in static mounts. An improved version replacing the electrical gunlaying with a mechanical system was also introduced as the 10.5 cm FlaK 39.



  1. SK - Schnelladekanone (quick loading cannon); C - Construktionsjahr (year of design)


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