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Old 01-10-14, 08:21 AM   #33
BigWalleye
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Join Date: Jul 2012
Location: On the Eye-lond, mon!
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Quote:
Originally Posted by aluc24 View Post
You said that range is estimated visually. Stadimeter, or just eye-ball guess?
Speed - did you use hydrophone to calculate propeller revolutions, or again, educated guess?
AOB is most interesting. How did you go about that? I always have a problem estimating AOB without drawing a lot of stuff on the map, which takes time - so I assume you have some faster way to do it?

Please, share your methods
Here are two PDFs which describe methods for accurately determining range, AOB, and speed using the graticles found in actual WW2-vintage periscope optics.

German Optics, by Hitman, is found in the documentation section of the Hitman’s Optics mod. You can download it here: http://www.subsim.com/radioroom/down...o=file&id=1519

UJadg Tools, by joe grundman, is found in the documentation for the hsGUI mod. Download it here: http://www.subsim.com/radioroom/down...o=file&id=1648

Both links are currently active.

Hitman’s work is a unique, well-researched and documented description of the optical systems actually installed in Uboats during the war. He uses contemporary sources and personal examination of surviving periscopes from WW2 Uboats. His conclusions are sometimes ignored, but I have never seen them disputed.

joe grundman’s work provides step-by-step instructions for calculating range, AOB, and speed using graticles and either the AOB ring or the angriffsscheibe, tools which were actually available on WW2 Uboats.

In my experience, the use of graticles for angle measurement is at least as accurate as the stadimeter. And it requires no apriori positive ID of the target, although target ID can ensure a more trustworthy result. (Historically, target identification was the work of an identification party, not the Approach Officer. He merely called out descriptive features to the ID party, who looked through the book. According to first-person accounts, a positive identification of the target sometimes wasn’t made until well after a successful attack.)

These methods use tools similar to those which were present on actual Uboats. Operationally, they are neither more nor less historically appropriate than stadimeters and computer-generated speed estimates, because the Approach Officer did not do all the calculations himself. How you prefer to simulate the working of the approach party (8-10 officers and senior ratings, each with specific responsibilities) is a matter of your personal taste. AFAIK, there is no way to accurately simulate the tasks of the Approach Officer with SH3 and any combination of mods. (Or with SH4 or SH5 either.)

That said, SH3 is still, IMO, the best and most immersive sub sim ever published.
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