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Tzoli

Australian Navy Never-Were Designs Part 3

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This is the third part of my Royal Australian Navy Never Were designs with drawings. Here I post the various heavy Cruiser designs offered to Australia, in the 1920's and also their own heavy cruiser design!

 

Cockatoo Heavy Cruiser Proposal:

https://www.deviantart.com/tzoli/art/Cockatoo-Heavy-Cruiser-Proposal-765349122

dcno35u-d9951ac6-cc07-484f-8d42-e3d43d28

After the decommissioning of the battlecrusier HMAS Australia in 1921 and it's scuttle in 1924, the Australian Navy left only with WW1 era light cruisers and destroyers, nothing major to fight the ever increasing power of the Imperial Japanese Navy. Thus the RAN asked the Royal Navy, the Admiralty and Vickers to offer what could be built indigenously in Australia on 10.000tons. At first, plans of the Hawkins class was offered together with the new 8" gun turrets (The counties were still under development at this time) from this the Australians modified the hull to accept 3 triple or 4 twin turrets. 
2 such cruisers would had been built at the Naval Dockyard at the Cockatoo Island near Sydney. From the original plans you can see that the cruiser is very much the same as the Hawkins class apart from it's enlarged size and different armament. Another unique element of this project was the usage of casemated 5" guns, meaning the Australians thought the 8" guns would not fire fast enough and required extra punch of which the quick firing guns would suffice.

At this time Vickers offered modified versions of the County class heavy cruisers, later in 1926 and 1927 it offered modified designs of the Kent class cruisers.
 

The designs had these characteristics:
Dimensions: 179,83 (pp) 192 (oa) x 20,88 x 5,26m
Displacement: 10.000tons (standard)
Armour: 38mm Deck, 76mm Belt
Engines: 90.000shp Parson Steam Turbines, 4 shafts
Speed: 61km/h (33knots)
Armaments: 
3x3 8"/50 (203mm) BL Mk VIII Guns,
12x1 5"/51 (127mm) BL Mk VI Guns,
4x1 4"/45 (102mm) QF Mk V AA Guns,
4x1 533mm Below Water Torpedo Tubes

Original drawing:
OzwKXZl.jpg
 
 
Vickers Export Design 1074X for Australia:
dcokj5t-877bf70c-cd8b-44ad-80ec-8853c244
This is one of the Vickers export designs offered to any nation who wished to acquire new ships but cannot built it's own.
Design 1074X was the 3rd (to my knowledge) of the 1074 export series of heavy cruisers. 1074 was the same as this design in every aspect, probably the difference was the arrangement of engines and non-main armaments on 10.000tons and was probably offered to Spain among others. 1074C was the same hull but with only 4 twin 8" guns again on 10.000tons.
1074X the drawing you see is offered to Australia but it was probably offered to Japan as well is the same as plain 1074 but on 10.160tons. The hull is flush deck with a high forecastle and rising aft, not reminiscent of the Counties then under development but more of a mix between Hawkins (Long sleek lines) and the Counties (Flush Deck, ship size and engine arrangement). The original sketch drawing was rather empty so I have added a catapult with seaplane and County (York) type bridge structure.
 
 
The designs had these characteristics:
Dimensions: 179,83 (pp) 190,5 (wl) 191,72 (oa) x 19,5 x 5,33m
Displacement: 10.160tons (standard)
Armour: unknown but probably 25mm deck and belt over machinery and over magazines
Engines: 115.000shp Parson Steam Turbines, 4 shafts
Speed: 64km/h (34,5knots)
Armaments: 
3x3 8"/50 (203mm) BL Mk VIII Guns,
4x1 4,7"/43 (120mm) QF Mk VII DP-AA Guns,
2x4 12,7mm/60 MG Mk III AA Guns
4x3 622mm Torpedo Tubes
1x Supermarine Seagull Seaplane
 
Based on this original sketch drawing found in the Yuzuru Hiraga archive:
default.jpg
 
 
Vickers Export Design 1144 for Australia
vickers_export_design_1144_for_australia
This is one of the Vickers export designs offered to any nation who wished to acquire new ships but cannot built it's own.
Design 1144 was a modified County class (Kent group) heavy cruiser proposal with different engine layout (Most likely similar to that of the Hawkins), no Catapult and octuple 40mm Pom-pom AA guns to tart with offered to Australia but most likely to Japan as well in 1924.
It has the same flush deck hull and 10.000tons as the counties and was a candidate for Australia to choose but instead the decided for a repeat County class of the Kent Group. On this design in place of the Catapult a command post was installed with centralised range finder equipment directors and seachlights. 
 
The designs had these characteristics:
Dimensions: 179,83 (pp) 190,8 (wl) 191,72 (oa) x 20,8 x 4,95m
Displacement: 10.000tons (standard)
Armour: unknown but probably 38mm deck and belt over machinery and over magazines
Engines: 80.000shp Parson Steam Turbines, 4 shafts
Speed: 59km/h (32knots)
Armaments: 
4x2 8"/50 (203mm) BL Mk VIII Guns,
4x1 4"/45 (102mm) QF Mk V DP-AA Guns,
2x8 40mm/39 QF Mk VIII AA Guns
2x4 533mm Torpedo Tubes
 
Based on this original sketch drawing found in the Yuzuru Hiraga archive:
default.jpg
 
 
Vickers Export Design 1242 for Australia:
dctgeuo-d519f4d1-eeeb-4324-a565-e79d774c
This export design for Australia from Vickers is dated slightly later (In 1926 rather 1923 and 24) then the previous proposals and shows a modified York class Heavy cruiser with the same armament and layout but on a slightly different hull (75tons heavier, more than a meter longer and minimally narrower) Other then these it is basically a repeat York for the RAN.
 
The designs had these characteristics: (IN brackets the York class)
Dimensions: 166,11 (pp) 176,63 (oa) x 17,22 x 5,03m (164,6 (pp) 175,3 (oa) x 17,4 x 6,17m 
Displacement: 8.325tons (standard) (8.250tons (standard))
Armour: Unknown but probably same as the York so 38mm deck above machinery, 76mm above magazines and 76mm belt over machinery with 114mm over magazines
Engines: Unknown but probably same as the York so 80.000shp Parson Steam Turbines, 4 shafts
Speed: Unknown but probably close to 60km/h (32,5knots)
Armaments: (Similar to York)
3x2 8"/50 (203mm) BL Mk VIII Guns,
4x1 4"/45 (102mm) QF Mk V DP-AA Guns,
2x8 40mm/39 QF Mk VIII AA Guns,
2x4 12,7mm MG Mk III AA Guns,
2x4 533mm Torpedo Tubes
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