Type XXI Renown cost

[Marcello]

Originally Posted by Rammstein0991

Dont the russians have a sub that looks almost like a complete ripoff of this thing?

Not really, at least no more than the Tang class. The XXI was extensively analyzed and features implemented in others designs, but not copied wholesale like the Tu-4 was copied from the B-29. The Zulu for example had three shafts, a rear torpedo room and a conventional pressure hull (not an asymmetric "8" figure).