The Jagdpanther (German: "hunting Panther"), Sd.Kfz. 173, was a tank destroyer (Jagdpanzer, a self-propelled anti-tank gun) built by Germany during World War II. The Jagdpanther combined the 8.8 cm Pak 43 anti-tank gun, similar to the main gun of the Tiger II, and the armor and suspension of the Panther chassis. It entered service in 1944 and served on the Eastern and Western Fronts. During the last stages of the war, limited German production resulted in small production numbers, shortage of spare parts, and shortened crew training periods of younger operators. Development The Jagdpanther was preceded by two attempts at mounting an 8.8 cm gun as a self-propelled anti-tank weapon; Ferdinand - also known as Panzerjäger Tiger (P) - using the ninety-one leftover Porsche-built VK 45.01 (P) chassis from the Tiger tank competition it lost to Henschel in 1942, and the Nashorn on the Geschützwagen III/IV (which used a combination of the Panzer III and Panzer IV components) chassis. Ferdinand proved to be too heavy, and Nashorn lightly armored and under-powered. A heavy tank destroyer design based on the 8.8 cm Pak 43 gun and the Panther tank chassis was ordered in late 1942. The full-size model by Daimler-Benz was demonstrated in October 1943 before Hitler. MIAG-built prototypes followed in October/November 1943. Production started in January 1944; in February, Hitler specified the simpler Jagdpanther name instead of its original "8.8 cm Pak 43/3 auf Fahrgestell Panther". To accommodate the heavier-calibre gun, as on previous Jagdpanzer-style unturreted tank destroyers, the glacis plate and sloped hull sides of the Jagdpanther were extended up into an integral fixed casemate as part of the main hull to provide a roomy interior. The Jagdpanther had side plates armour thickness increased (to 50 mm) to offset the slightly reduced angle of the side plate to provide enough interior space. Lower frontal hull plate was reduced to while upper hull frontal plate was kept at . The chassis armour changes were also introduced on the main Panther tank assembly lines with the Panther Ausf. G in spring 1944. It was armed with the long-barreled 8.8 cm Pak 43/3 L/71 gun, similar to the main gun of the Tiger II ("King Tiger"). The gun was mounted in a central mantlet, giving it a limited traverse of twelve degrees to each side. A single 7.92 mm MG 34 machine gun was in a ball mount on the right side