tag:blogger.com,1999:blog-5030145265861917845.post320555230760930430..comments2024-03-28T14:35:30.147-04:00Comments on Tank Archives: New TurretPeterhttp://www.blogger.com/profile/09622237223229485503noreply@blogger.comBlogger1125tag:blogger.com,1999:blog-5030145265861917845.post-7148929974550616032020-07-19T14:04:49.379-04:002020-07-19T14:04:49.379-04:00To explain the reference to a pre-existing observa...To explain the reference to a pre-existing observation cupola, you link to a page on the "MK-4" Gundlach periscope - but on that page, you say this was not prototyped until May '43, several months after the date of this document.<br /><br />Had there been an earlier prototype? Or is this a reference to the original observation periscope that was installed in a non-opening cupola in the middle of the hatch, and deleted in early production?<br /><br />There seems to be a lot of confusion about this device in secondary sources (at least in sources accessible to English-language amateurs like myself) - the device is generally identified as a "PTK" and described as a variant of the PT-series periscopic gunsight located in the "pepperpot" on the front left of the turret, but diagrams depict a completely different (and much more straightforward) observation device.<br /><br />I suspect there has been some confusion between this early "cupola" and a simplified observation-only variant of the PT "pepperpot", noted here as an alternative installation in the front-left position:<br /><br />https://www.tankarchives.ca/2017/03/tank-costs-1943.html<br /><br />Is this covered in your book? Or are you willing to offer quick clarification here?<br /><br />Also, is the 26° view from the PT periscope the angle at x2.5 magnification? Could the device be zoomed out to obtain a wider x1 view?tartan toryhttps://www.blogger.com/profile/04265483364963078653noreply@blogger.com