Type 82 Bristol Class Projects and Design Studies

[XRNWEO]

As a postscript, look at the Type 42 Batch 1 full cut thread, for more details. The Ikara handling system was a tight fit around a 12 75 inch torpedo. It couldn't accommodate the fatter 16.5 inch diameter bomb armed versuon. The only place this round could be handled/inserted was the IAR loading trolley which then fed the launcher directly. I.e a nuclear round thus blocked loading of conventipal rounds, until fired, or removed from the IAR.

 

[Hood]

I believe these are the magazines that you are referring to?

These were part of the Joint Admiralty/Ministry of Aviation Shipborne A/S Weapon System Working Party report of May 1962 (incidentally the same source for these generic A/S frigate drawings which illustrated the various missile options in the report https://www.secretprojects.co.uk/th...taken-for-rn-type-19-frigate.5525/#post-44227) and note also the use of the CF.299 launcher in some of these proposals.
Source: ADM 1/28451

The last image is Bristol's GWS.40 installation.

 

[XRNWEO]

Hood. Thank you for these. Confirm the last picture is Bristol's magazine 'as built', with the simplified single deck layout. The reserve magazine to starboard, with the air powered hoist is what would have been the nuclear round hoist and transfer point, from a deep magazine for the NW armed Ikara. The remaining ships layout and bulkheads match the original layout shown in the Warship 2015 article drawings. Your earlier drawings show Ikara aft, in a Type 19 frigate, but still using the two decks high vertical 'merry-go-round'.

 

[TinWing]

Three CF.299 frigate concepts date to 1961-3. When I first saw these I thought they were just generic layouts to show how the CF.299 could be installed but I am now leaning towards them being more serious than that, especially the two 3,600 ton concepts. The 3,600 ton ship with the aft mounted CF.299 shows some Type 82 DNA in its basic layout, including the arrangement of armament, Type 909s, and Ikara tracking radars. The Type 988 mounted directly above the small bridge is also similar to the ultimate Type 82 design. That said, the bridge and bridge/MACK combination looks somewhat cosy. Only on the aft CF.299 version do the bridge wings also appear to serve as funnels, they have some similarity to the funnels proposed for CVA01. It’s worth noting that only the aft CF.299 ship has the full 38 missile configuration, the forward arrangement loses a row of missiles reducing its capacity to 34. The smaller diesel ship is 1,400tons.

If you took the aft CF.299 version, built up the foredeck, replaced the single machinery space with the County class machinery arrangement, then made the whole thing a bit bigger before adding a 4.5" Mk.8 you would basically end up with the final Type 82 design. For that reason I suspect these might be representative of actual DNC designs very early in the Type 82 design process.

The oddest thing is the gun, the 4" Mk.25 single was a weapon intended to equip DEMS, and briefly considered for the Type 42 coastal sloop, in the early-mid 1950s. Its weird seeing it on an early 1960s CF.299 frigate. My hypothesis is that there was a hard requirement to engage surface targets, likely small craft (hence SS.11 being in the staff requirement), and the 4" Mk.25 was the smallest, lightest, cheapest, (close to) existing weapon that ticked that box.

Consider for a moment that Vosper sold 2 Mark 1 Corvettes to Ghana (laid down in 1962) and a single sister ship to Libya, all of which were armed with hand operated 4" L33 Mark XXIII submarine deck guns in "S.2 mountings." The profile in these drawings visually matches the gun shield aboard these export ships. During the Indonesian crisis, A-class submarines had been refitted with this particular model of deck gun, so presumably spares and ammunition were still in the RN inventory.

Britain 4"/33 (10.2 cm) QF Mark XXIII - NavWeaps

www.navweaps.com