Panther with 8,8 centimeters KwK in narrow Turret.
In a meeting of the Entwicklungskommission Panzer on 23 January 1945, Oberst Holzhaeuer (Wa Pruef 6) reported that development of a Panther with the 8.8 cm KwK L/71 in a Panther- Schmalturm was to be accomplished by Daimler-Benz. The turret ring diameter was to be 100 mm larger than the current Panther turret with an increase in weight of about one metric ton.
Drawing No. Hln B-130 dated 18 October 1944 was created by Krupp as a proposal for fitting the 8,8 cm KwK43 L/71 into a Panther Schmalturm with minimal modification. There was very limited space available for loading the long (1167 mm) high explosive round.
Ammunition stowage amounted to 56 rounds in comparison to 103 rounds previously stowed in the Panther. A wooden model had been completed. An experimental model in soft steel had yet to be fabricated. General-Major Thomale (Insp.Gen.d.Pz.Tr.) stated that the planetary gear final drive was absolutely necessary for a Panther with the 8.8 cm KwK L/71 and that it would be necessary to conduct studies on ammunition stowage and loading in the soft steel model.
Some of the characteritics were:
-Elevation from minus 8 through plus 15 degrees.
-Only the previous 8,8 cm KwK43 developed for the Tiger II was acceptable.
-The recoil and return cylinders were to be mounted above the gun with the bore evacuation cylinder in the middle.
-The muzzle brake was to be dropped.
-The trunnions were to be relocated.
- A smooth armor plate for the turret front with the small possible apertures for the main gun and machinegun.
-The iddle of the trunnions were to be located on the forward edge of the front plate.
-A turmfernmesser, turret rangefinder was to be included. An attempt was to be made to use the already available 1,32 m or 1,65 m rangefinders designed for Panzerkampfwagen
The war ended before the model was fully completed but is not wrong to say that given the extreme limited room left by the instalation of the heavier and larger main gun the Panther ausf F o Panther II equipped in this way would be extremely unconfortable for the crew, specially the "ladenschutze" ( loader).
The Krupp proposal for fitting the 8,8 cm KwK43 L/71 into the Panther Schmalturm, drawing dated november 1944.