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  • Originally posted by DeV View Post
    But can they fire the latest fancy ammo that would be a game changer in capability when linked to a better FCS?
    The original fit of 40mm Bofors fitted on Deirdre and Emer were ancient weapons surveyed onto a bolted deck foundation with mechanical elevation and training. They had 300kt open cartwheel sights and were hand loaded in clips of 4 rounds. They were L60's . They were later replaced with similar calibre Bofors but with a L70 barrel length with greater range and MV.
    Afaik they had NO underdeck feed. The 57mm and 76mm do have deck penetrations especially the 76mm with Magazine feed to the guns. The Strales version of the 76mm can be adapted to fire smart ammunition and can have a multifeed system, for different types of ammunition, allowing the user to engage a multiplicity of targets at the same time. It can deliver up to 120 rounds of ammunition on to a target in one minute. There are modern versions of 40mm Bofors but the old L60's and L 70's should be left in the past .

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    • Originally posted by ancientmariner View Post
      The original fit of 40mm Bofors fitted on Deirdre and Emer were ancient weapons surveyed onto a bolted deck foundation with mechanical elevation and training. They had 300kt open cartwheel sights and were hand loaded in clips of 4 rounds. They were L60's . They were later replaced with similar calibre Bofors but with a L70 barrel length with greater range and MV.
      Afaik they had NO underdeck feed. The 57mm and 76mm do have deck penetrations especially the 76mm with Magazine feed to the guns. The Strales version of the 76mm can be adapted to fire smart ammunition and can have a multifeed system, for different types of ammunition, allowing the user to engage a multiplicity of targets at the same time. It can deliver up to 120 rounds of ammunition on to a target in one minute. There are modern versions of 40mm Bofors but the old L60's and L 70's should be left in the past .
      I was talking about the 76mm

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      • Originally posted by ancientmariner View Post
        The original fit of 40mm Bofors fitted on Deirdre and Emer were ancient weapons surveyed onto a bolted deck foundation with mechanical elevation and training. They had 300kt open cartwheel sights and were hand loaded in clips of 4 rounds. They were L60's . They were later replaced with similar calibre Bofors but with a L70 barrel length with greater range and MV.
        Afaik they had NO underdeck feed. The 57mm and 76mm do have deck penetrations especially the 76mm with Magazine feed to the guns. The Strales version of the 76mm can be adapted to fire smart ammunition and can have a multifeed system, for different types of ammunition, allowing the user to engage a multiplicity of targets at the same time. It can deliver up to 120 rounds of ammunition on to a target in one minute. There are modern versions of 40mm Bofors but the old L60's and L 70's should be left in the past .
        Modern 57mm Bofors has no deck penetration and can fire smart ammo.
        Would you believe there was a sizeable cohort wearing gold braid on their shoulders who wanted the P60s fitted with 40mm L70 taken from the P20s?
        Reason being they are less maintenance intensive than the 76mm Oto Melara. Thankfully common sense and a stubborn flag meant this proposal never succeeded, and the L70 were sent to Spike Island to be used in a role appropriate to their vintage. A museum.
        For now, everything hangs on implementation of the CoDF report.

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        • Originally posted by DeV View Post
          But can they fire the latest fancy ammo that would be a game changer in capability when linked to a better FCS?
          Leonardo do offer an upgrade kit to allow the use of their 3AP programmable munitions.

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          • Originally posted by na grohmiti View Post
            The Upgraded Bofors 40mm that went on the P20s replaced guns that dated from 1948. Naval guns last longer. It is a gun in widespread use since the 70s, and while mechanically comparatively labour intensive, there are plenty of perfectly serviceable 2nd hand guns available.
            It does require some space in the deck below though. the Comparable 57mm does not.
            57mm requires access to the magazines for the ammunition feed
            Covid 19 is not over ....it's still very real..Hand Hygiene, Social Distancing and Masks.. keep safe

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            • Originally posted by hptmurphy View Post
              57mm requires access to the magazines for the ammunition feed
              Not to the same extent as the 76mm Oto Melara.
              For now, everything hangs on implementation of the CoDF report.

              Comment


              • Originally posted by na grohmiti View Post
                Modern 57mm Bofors has no deck penetration and can fire smart ammo.
                Would you believe there was a sizeable cohort wearing gold braid on their shoulders who wanted the P60s fitted with 40mm L70 taken from the P20s?
                Reason being they are less maintenance intensive than the 76mm Oto Melara. Thankfully common sense and a stubborn flag meant this proposal never succeeded, and the L70 were sent to Spike Island to be used in a role appropriate to their vintage. A museum.
                The 57mm gun on my ship could fire two kinds of ammo SAP and PF AA ammunition. It was then of Swedish origin and was later taken over by BAE Systems. The Gun came as Mark 1 followed by Mark2 -- 14,500kgs and Mark 3-- 16,300 kgs. The latter fires smart ammunition. mark1 can be adapted to fire Mark 2 Ordanance but the gun we had has a magazine hoist to supply reloads to replenish ammunition cassettes in the gun. Mark 1 1961 vintage mark 2 1981, Mark3 latest and being fitted by USN and USCG. You have to have holes to continue ammunition supply.

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                • Originally posted by ancientmariner View Post
                  The 57mm gun on my ship could fire two kinds of ammo SAP and PF AA ammunition. It was then of Swedish origin and was later taken over by BAE Systems. The Gun came as Mark 1 followed by Mark2 -- 14,500kgs and Mark 3-- 16,300 kgs. The latter fires smart ammunition. mark1 can be adapted to fire Mark 2 Ordanance but the gun we had has a magazine hoist to supply reloads to replenish ammunition cassettes in the gun. Mark 1 1961 vintage mark 2 1981, Mark3 latest and being fitted by USN and USCG. You have to have holes to continue ammunition supply.
                  Holes, yes.
                  However there is a lower half to the OTO melara that takes up considerably more space than the magazine hoist.
                  That is my point.

                  For now, everything hangs on implementation of the CoDF report.

                  Comment


                  • Originally posted by na grohmiti View Post
                    Holes, yes.
                    However there is a lower half to the OTO melara that takes up considerably more space than the magazine hoist.
                    That is my point.

                    There is a supply connection that has to be brought through the deck to drive the gun also. However do take the point your trying to make. The Mark1 didn't go into production until 1966 and the Mark 2 wasn't fitted to ships until about 1985. It was from then on that ammunition and ranging improved to deal with sea-skimmers etc. The 1990's Mark 3 is the one with all the updated features including on turret range calculating unit. Our 57mm is the plain Mark 1.

                    Comment


                    • Originally posted by ancientmariner View Post
                      There is a supply connection that has to be brought through the deck to drive the gun also. However do take the point your trying to make. The Mark1 didn't go into production until 1966 and the Mark 2 wasn't fitted to ships until about 1985. It was from then on that ammunition and ranging improved to deal with sea-skimmers etc. The 1990's Mark 3 is the one with all the updated features including on turret range calculating unit. Our 57mm is the plain Mark 1.
                      Our Mk1 was still a huge leap from the 40mm L60 on an open mount then found on the sweepers and the P20.
                      Going forward though, 76mm Oto Melara is the only logical choice for all ships. When they decide on a rhino replacement hopefully it will be big enough to fill the gap between 76mm and 12.7mm.
                      For now, everything hangs on implementation of the CoDF report.

                      Comment


                      • Originally posted by ancientmariner View Post
                        The original fit of 40mm Bofors fitted on Deirdre and Emer were ancient weapons surveyed onto a bolted deck foundation with mechanical elevation and training. They had 300kt open cartwheel sights and were hand loaded in clips of 4 rounds. They were L60's . They were later replaced with similar calibre Bofors but with a L70 barrel length with greater range and MV.
                        Afaik they had NO underdeck feed. The 57mm and 76mm do have deck penetrations especially the 76mm with Magazine feed to the guns. The Strales version of the 76mm can be adapted to fire smart ammunition and can have a multifeed system, for different types of ammunition, allowing the user to engage a multiplicity of targets at the same time. It can deliver up to 120 rounds of ammunition on to a target in one minute. There are modern versions of 40mm Bofors but the old L60's and L 70's should be left in the past .
                        The Sovaponte version of the 76 is deck mounted with no penetration. And AFAIK the Strales cupola can be retrofitted to any 76, but don't quote me on it. I still think this would be the way to go if you want to upgrade the OPVs

                        Comment


                        • Originally posted by Graylion View Post
                          The Sovaponte version of the 76 is deck mounted with no penetration. And AFAIK the Strales cupola can be retrofitted to any 76, but don't quote me on it. I still think this would be the way to go if you want to upgrade the OPVs
                          How do you load it though?

                          At least the older model can be reloaded from beneath under the cover of a deck. 38 rounds isn't exactly a six shooter, of course, but you have to have some other exposed hoist or deck storage for reloading those 2 19 round clips, with no real option for changing your ammo type mid shoot. Fine if you just need it for AAA though.
                          For now, everything hangs on implementation of the CoDF report.

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                          • Specialised boat for moving Stanflex mpdules around.

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                            • Originally posted by Graylion View Post
                              Specialised boat for moving Stanflex mpdules around.
                              Actually future CPV replacement

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