Haubits m/40

The 10,5 cm Haubits m/40 is a Swedish 105 mm howitzer, which was manufactured by Bofors during World War II.

10,5 cm Haubits m/40
10,5 cm Haubits m/40
TypeHowitzer
Place of originSweden
Service history
In service1940-today
WarsWorld War II
Production history
DesignerBofors
Designed1937
ManufacturerBofors
Tampella
Produced1940 -
Variants105 H 37 (Finnish version)
105 H 61-37 (modernized Finnish version)
10.5 cm Hb Model 46 (Swiss version)
Specifications
Mass1,970 kg
Length5.310 m
Crew7 + 3 reserve

Shellhigh explosive
Caliber105 mm
BreechHorizontal sliding-wedge breech or interrupted screw breech
CarriageSplit trail with recoil spades
Elevation-5 to +45 degrees
Traverse50 degrees
Rate of fire10 rounds per minute
Maximum firing range10,900 m

The howitzer was license manufactured both in Finland and in Switzerland. Today, the gun is mainly used as a training gun by the Estonian army.

Operators

 Estonia
105 H 61-37 version. Ca. 40 units from Finland. Used as training guns.
 Finland
105 H 61-37 version. 140 units, now withdrawn from service, ca. 40 were given to Estonia.
 Netherlands
Used in Dutch East Indies
 Sweden
10,5 cm Haubits m/40, about 400 units in five versions or alterations.
  Switzerland
10.5 cm Hb Model 46 version
 Thailand

Versions

An H 61–37 in Hameenlinna Museum
10,5 cm Haubits m/40
Original Swedish version
105 H 37
Finnish version manufactured by Tampella
105 H 61-37
Finnish modernized version from the 1960s. Longer L/26 barrel with redesigned muzzle brake, new equilibrators and fixed ammunition for improved rate of fire.
10.5 cm Hb Model 46
Swiss version manufactured in Thun

Specification

  • Era: World War II
  • Name: 105 mm Haubits m/40
  • Type: Howitzer
  • Nation: Sweden
  • Manufacturer: Bofors
  • Target: General
  • Date: 1937
  • Production Date: 1940 -
  • Service Date: 1940-1990's
  • Numbers Built
  • Operators: Siam (today Thailand), Netherlands East Indies (today's Indonesia) and in Finland built under license from Bofors as the m/37, Switzerland built under license from Bofors as 10,5 cm Hb Model 46
  • Breech Mechanism: Horizontal sliding-wedge breech or interrupted screw breech
  • Barrel: 22 or 24 (Bore 20,2 cal)
  • Elevation: -5 to +45°
  • Traverse: 50°
  • Caliber:105×155 mm
  • Carriage: Split trail with spades
  • Weight: 1970 kg
  • Length: 5310 mm
  • Shell Types:
  • Action: Case-type separate loading, 6 charges
  • Muzzle velocity: max 449 m/s
  • Tactical range: 10,5 km
  • Maximum range: 10,9 km
  • Rate of Fire:
  • Crew:7 + 3 reserve
  • Transportation: Horse drawn, after 1950 motor traction
  • Miscellaneous: Perforated muzzle brake

Ammunition

Variants

File:AM.089844 (02).jpg|thumb|AM.089844 (02)|Updated version used in swedish artillery until decommissioned in the 1990s

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