Talk:Artillery sound ranging

message: I've changed the second expression of the Law of Cosines to this:
:r_1^2=\left(r_1+r_3\right)^2 + r_5^2-2\cdot\left(r_1+r_3\right)\cdot r_5 \cos(\theta-\phi)
From:
:r_1^2=\left(r_1+r_3\right)^2 + r_5^2-2\cdot\left(r_1+r_3\right)\cdot r_5 \cos\phi
Which seems wrong given the diagram:
Keeping in mind that the Law of Cosines looks like:
:c^2 = a^2 + b^2 - 2ab\cos(\gamma)
— Preceding unsigned comment added by Mikhail Klassen (talk • contribs) 16:48, 28 January 2007 (UTC)
thread_title:  Mistake 

message: This item is very confusing and contains quite a lots of  errors in the detail (but not in the maths I think). Basically it needs to differentiate between 'sound ranging' used to accurately locate hostile artillery and 'sound location' used to detect aircraft and to direct searchlights at them.  While sound is sound whatever its source (well sort of) the problems and solutions are very different.  Particularly in its first few decades, modern electronics and uses seem to have changed matters somewhat.  Mixing it up with flash-spotting and radar for artillery locating, which also contains errors of fact, doesn't help either.
Nfe 09:57, 19 February 2007 (UTC)
thread_title: General

message: I feel that this article is in need of reorganisation to reduce its confusion.
At present, it covers a number of related topics which should really be separated into articles of their own.  It seems that the original content was to be that known as GSR - Gun Sound Ranging - but it has spread into more general location by sound and, indeed other methods.  It may be better to consider an overarching topic "Artillery Location" with subtopics GSR and Flash Spotting, plus links to Artillery Survey, if that exists (and it ought to!).  The accoustical detection of aircraft, which was developed in the UK between WW1 and WW2 but effectively dropped with the emergence of radar, is an interesting but separate topic, IMHO.
Comments anyone?
--Alister Mitchell 17:54, 26 July 2007 (UTC)
thread_title:  General comments 

message: As of 15 December 2010, the diagram for sound ranging has been hijacked/overwritten by an unrelated diagram from a different wiki.  If you look at the [revision history] for the diagram, it was replaced on 29 November 2010 by a totally unrelated diagram (which appears to have something to do with acoustic levitation in a wikibook).  
Suggest that the file be moved to something more clearly related to this article (to prevent such confusion in the future), and restore it to the geometric diagram .
I don't see the necessary tabs to fix the problem, hope somebody with more experience with images can fix the problem.  Thanks.  64.40.60.68 (talk) 08:53, 15 December 2010 (UTC)
thread_title:  Diagram has been hijacked 

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thread_title:  External links modified 

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thread_title:  External links modified 

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thread_title:  External links modified 

message: The British may have made a quite good system, but to say they “lead the way” is probably wrong. At least one other country had an operative system in the early 1990s, and at that time it had been operative for many years. To me the “Present day” section seems somewhat imprecise. Jeblad (talk) 15:51, 23 April 2020 (UTC)
thread_title:  Present-day 

message: To back up the disputed-inline tag that I placed at :  surveying is hardly necessary in the age of GPS. This sentence should probably be struck. ☆ Bri (talk) 22:23, 26 May 2022 (UTC)
thread_title:  "Must be accurately surveyed"?