10 cm houfnice vz. 30 (howitzer) 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 after the German invasion of Czechoslovakia in March 1939 were taken into Wehrmacht service as the 10 cm leFH 30(t). It was used by a variety of German units during World War II, including II. and III./SS-Artillerie-Abteilung 3 between 1939 and 1940 and SS-Artillerie-Abteilung 51 during 1941. 30 served with the Slovak Army. It was modified from an earlier Skoda design, the 10 cm houfnice vz. 28, that attempted to combine
Gun-type fission weapon an artillery gun), one hung under a balloon in the open air, and one in an underground tunnel. Later versions were based on the implosion design. Bombs Artillery Other 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