Hitler ordered the Tank to have the 8.8 Flak 41 in the Turrett already designed for the VK 45.01 but Porsche sent a telegram in 1941 that only the that only the 8.8 cm KwK L/56 could be fitted. a decision
was made to complete the first 100 VK 45.01 with the Krupp design Turret with the 8.8 KwK L/56 instead of the Flak 41 which is the more effective gun as order by Hitler.
Krupp received a contract to to fabricate the armoured componets for 100 Hulls and Turrets for the VK 45.01. and to assemble the turrets for operational condition and ship them for mounting at Fahrgestelle
assembled at Nibelungenwerk..
Early Trails of the VK 45.01 Chassis under Test