Just a thought, I have done a lot of reading on the e series....why are you following the trumpatear design so closely? There was no turret that was designed for the e50 or e75...the e50 was supose to receive the king tigers gun and the e75 was to receive the "new" 100mm gun but that was all that had been decided. The E100 was in the contract as themaus soit would get the126mm gunand since it had the same turret ringsize as the maus people decided that the sameturret would go one the e100......ButI tend to think things would have gonethe way of the king tiger.....prosche had 50 turrets made in advance so even thought he did not get the contract some king tigers were fitted with the turrets from his contract offering.....the maus turret had the same design isses as the "porsche" king tiger, a shot trap under the gun and a lot of very thick armor plate bending( this slows preduction).

On the gun.....I have never read anything about a 100mm/ 100 caliber gun designed for tank use.....The germans were nuts but they were not that nuts to stick agun on a tank that stuck out like 25 feet from the front of the tank but thatsjmo....

have you read through my thread on the e50 build?

http://www.rcuniverse.com/forum/m_10888491/tm.htm