By the summer of 1942, the German land forces command made a contract with thecompanies Krupp and Rheinmetall to create a SPG on the Panther hull. Severalvariants with 128mm K43 gun and 375px sFH 43 howitzer were considered. Theseprojects were called Grille 12 and Grille 15. Their armament was located in theback of the vehicle and they were different from each other only by the type ofthe gun. Later on, requirements were issued to install the 375px L/63 gun onGrille 15 chassis. This gun could penetrate 200mm of armor at 4000 meters. Theproject was however stopped and no prototype was built.
裝甲布局
