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Von Due · 04-19-16, 02:35 AM

Not sure how I can make myself understood. That image I have seen but that too does not say whether it was taken through an attack scope or taken through an obs scope. It is THAT piece of information I am looking for. I'll try in a different way:

I have seen pics like the one you linked, with the marks at the far left and far up. Then I have seen some with the horizontal marks at the centerline, and the vertical marks a little left of center, then other shots (on a rare occation) with no marks at all, claiming to be from a german sub. But NOONE say which photo is taken through the attack scope and which photo is taken through the obs scope.

What I am looking for is some kind of documentation on what the attack scope marks layout was like and what the obs mark layout was like.

I am NOT looking for general images of scopes with no info or no reliable info on whether it was an a scope shot or an o scope shot.

EDIT: Update
I have found this
http://www.tvre.org/en/acquiring-torpedo-firing-data

The most important bit I read there is there were various types (models/makes from various manufacturers) and they appear to have different markings so that a quote "type ASR C/13 attack periscope" had marks, or graticule, that was different from the graticule on a quote "Type StaSR C/2 attack periscope".

Another thing that complicates things is that these scope images from these models are often post-war models, that is they were never used on a VII during the war.

Then a new question pops up: Wasn't the graticule standarized for a say, type VIIB sub or did the different shipyards install different makes of scopes on the subs?

04-19-16, 02:35 AM	#5
Von Due Sea Lord Join Date: Jul 2012 Posts: 1,690 Downloads: 30 Uploads: 0	Not sure how I can make myself understood. That image I have seen but that too does not say whether it was taken through an attack scope or taken through an obs scope. It is THAT piece of information I am looking for. I'll try in a different way: I have seen pics like the one you linked, with the marks at the far left and far up. Then I have seen some with the horizontal marks at the centerline, and the vertical marks a little left of center, then other shots (on a rare occation) with no marks at all, claiming to be from a german sub. But NOONE say which photo is taken through the attack scope and which photo is taken through the obs scope. What I am looking for is some kind of documentation on what the attack scope marks layout was like and what the obs mark layout was like. I am NOT looking for general images of scopes with no info or no reliable info on whether it was an a scope shot or an o scope shot. EDIT: Update I have found this http://www.tvre.org/en/acquiring-torpedo-firing-data The most important bit I read there is there were various types (models/makes from various manufacturers) and they appear to have different markings so that a quote "type ASR C/13 attack periscope" had marks, or graticule, that was different from the graticule on a quote "Type StaSR C/2 attack periscope". Another thing that complicates things is that these scope images from these models are often post-war models, that is they were never used on a VII during the war. Then a new question pops up: Wasn't the graticule standarized for a say, type VIIB sub or did the different shipyards install different makes of scopes on the subs? Last edited by Von Due; 04-19-16 at 03:49 AM.