10 cm houfnice vz. 30 (howitzer) the field and mountain gun roles into one weapon. The Czechoslovak army decided to adopt it to replace their plethora of aged Austro-Hungarian field guns. They replaced the wheels with modern rubber-tired wheels, but curiously chose to retain the crewman's seat on the Gun shield. It used the same carriage as the 8 cm kanon vz. 30 that could break down into three pieces for transport . It fired a shell. 10 cm houfnice vz. 30 (howitzer) The 10 cm houfnice vz. 30 (howitzer model 30) was a Czechoslovak howitzer used in the Second World War. The 158 weapons captured
Gun-type fission weapon Gun-type fission weapon Gun-type fission weapons are fission-based nuclear weapons whose design assembles their fissile material into a supercritical mass by the use of the "gun" method: shooting one piece of sub-critical material into another. Although this is sometimes pictured as two sub-critical hemispheres driven together to make a supercritical sphere, typically a hollow projectile is shot onto a spike which fills the hole in its center. Its name is a reference to the fact that it is shooting the material through an artillery barrel as if it were a projectile. Other potential arrangements may include firing two pieces into