rnixartillery Posted December 6, 2012 Share Posted December 6, 2012 (edited) Can anyone I.D this LBM,its dated 1956 and I think it is British Naval AA. I cant quite place it but It is not 3.7 ! Rob...................rnixartillery Edited December 6, 2012 by rnixartillery Quote Link to comment Share on other sites More sharing options...
Artifficer Posted December 10, 2012 Share Posted December 10, 2012 Can anyone I.D this LBM,its dated 1956 and I think it is British Naval AA.I cant quite place it but It is not 3.7 ! Rob...................rnixartillery Just a thought Rob is it a top mounted lbm? It would be quite difficult to operate if it was side mounted? Regards Rob Quote Link to comment Share on other sites More sharing options...
rnixartillery Posted December 11, 2012 Author Share Posted December 11, 2012 Just a thought Rob is it a top mounted lbm? It would be quite difficult to operate if it was side mounted?Regards Rob Yes it is mounted on top of the ring and appears to be the type used to activate an interupted screw not a Block. I would think it could be for a large Naval gun but can't comfirm. Rob................rnixartillery. Quote Link to comment Share on other sites More sharing options...
andym Posted December 11, 2012 Share Posted December 11, 2012 The date of 1956 would imply something like a 4.5" Mk.5 or Mk.6, but they had sliding breech blocks. Could be a BL 15" Mk.1 but they were out of service by 1959? Andy Quote Link to comment Share on other sites More sharing options...
g0ozs Posted December 11, 2012 Share Posted December 11, 2012 There were quite a few 4" twin mounts around until the late 1960s on Loch & Bay class frigates and various support vessels - i think HMS Mermaid was fitted with a reused one as late as the early 70s - could be from one of them? The old style cruiser 6" also survived after 1960 on HMS Belfast and a couple of the Colony class cruisers that got sold on to commonwealth users. Just a thought? Iain Quote Link to comment Share on other sites More sharing options...
andym Posted December 11, 2012 Share Posted December 11, 2012 HMS Belfast's 6 inch breech: http://upload.wikimedia.org/wikipedia/commons/2/2b/Loading_6_inch_gun_HMS_Belfast_Geograph_1695654_587c3213.jpg Andy Quote Link to comment Share on other sites More sharing options...
g0ozs Posted December 11, 2012 Share Posted December 11, 2012 I checked - all the 4" QF were sliding block and I am fairly sure the 5.25" on AA cruisers and Vanguard were too - I think the only interrupted screw breech around for an extended period post war was the 6" as found on HMS Belfast: http://www.navweaps.com/Weapons/WNBR_6-50_mk23_Breech_pic.jpg Having said that the handle looks awfully like that on some 4.7" guns on pre-war or early wartime destroyers to operate a semi-automatic rammer http://www.hnsa.org/doc/br224/part1.htm#par111 (scroll down to Fig 31) http://www.navweaps.com/Weapons/WNBR_47-45_mk9_Tray_pic.jpg Hope this helps Iain Quote Link to comment Share on other sites More sharing options...
andym Posted December 11, 2012 Share Posted December 11, 2012 I hadn't seen that BR before - wonderful! I actually fired a 4.5" Mk.6 back in the late 1970's at HMS Cambridge. Andy Quote Link to comment Share on other sites More sharing options...
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