Mod "15 cm schwere Feldhaubitze 13" version 04.06.21 for Ravenfield (Build 25)

The 15 cm schwere Feldhaubitze 13 (15 cm sFH 13), was a heavy field howitzer used by Germany in World War I and the beginning of World War II.
The gun was a development of the previous standard howitzer, the 15 cm sFH 02. Improvements included a longer barrel resulting in better range and a gun shield to protect the crew. Variants were: the original "kurz" (L/14 – 14 calibre short barrel version), the lg. sFH13 with a longer barrel; with minor modifications to simplify wartime manufacture of the lg. sFH weapons.