"Hummel" engineered by Alkett (Altmärkische Kettenwerk GmbH), assembled 1944 by German Iron Works Duisburg, crew of 7, 12 cylinder Maybach HL 120, 220 kw (295 hp), 15 centimeter (150 mm) howitzer, 12 km cannon range; initially a stop gap howitzer, it was so successful that it was manufactured...read more