Shipbucket

Shannon Class Destroyer




Shannon, Antaran destroyer laid down 1940

Displacement:
2 472 t light; 2 562 t standard; 2 830 t normal; 3 044 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
(410,43 ft / 406,50 ft) x 40,19 ft x (13,12 / 13,84 ft)
(125,10 m / 123,90 m) x 12,25 m x (4,00 / 4,22 m)

Armament:
10 - 5,00" / 127 mm 40,0 cal guns - 59,90lbs / 27,17kg shells, 100 per gun
Dual purpose guns in turret on barbette mounts, 1940 Model
3 x 2-gun mounts on centreline, aft deck aft
2 raised mounts - superfiring
2 x 2-gun mounts on centreline, forward deck forward
1 raised mount - superfiring
Weight of broadside 599 lbs / 272 kg
Main Torpedoes
8 - 21,0" / 533 mm, 30,00 ft / 9,14 m torpedoes - 1,974 t each, 15,795 t total
In 2 sets of deck mounted centre rotating tubes
Main DC/AS Mortars
50 - 250,00 lbs / 113,40 kg Depth Charges + 2 reloads - 5,804 t total
in Stern depth charge racks

Armour:
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 1,00" / 25 mm 1,00" / 25 mm 1,00" / 25 mm

- Protected deck - single deck:
For and Aft decks: 0,75" / 19 mm
Forecastle: 0,75" / 19 mm Quarter deck: 0,75" / 19 mm

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 2 shafts, 65 606 shp / 48 942 Kw = 35,00 kts
Range 4 800nm at 15,00 kts
Bunker at max displacement = 482 tons

Complement:
193 - 252

Cost:
£2,064 million / $8,254 million

Distribution of weights at normal displacement:
Armament: 203 tons, 7,2%
- Guns: 165 tons, 5,8%
- Weapons: 39 tons, 1,4%
Armour: 220 tons, 7,8%
- Armament: 73 tons, 2,6%
- Armour Deck: 147 tons, 5,2%
Machinery: 1 476 tons, 52,2%
Hull, fittings & equipment: 573 tons, 20,2%
Fuel, ammunition & stores: 358 tons, 12,6%
Miscellaneous weights: 0 tons, 0,0%

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
455 lbs / 207 Kg = 7,3 x 5,0 " / 127 mm shells or 0,2 torpedoes
Stability (Unstable if below 1.00): 1,00
Metacentric height 1,3 ft / 0,4 m
Roll period: 14,9 seconds
Steadiness - As gun platform (Average = 50 %): 51 %
- Recoil effect (Restricted arc if above 1.00): 0,65
Seaboat quality (Average = 1.00): 0,60

Hull form characteristics:
Hull has raised forecastle,
a normal bow and a cruiser stern
Block coefficient (normal/deep): 0,462 / 0,471
Length to Beam Ratio: 10,11 : 1
'Natural speed' for length: 20,16 kts
Power going to wave formation at top speed: 68 %
Trim (Max stability = 0, Max steadiness = 100): 85
Bow angle (Positive = bow angles forward): 10,00 degrees
Stern overhang: 0,00 ft / 0,00 m
Freeboard (% = length of deck as a percentage of waterline length):
Fore end, Aft end
- Forecastle: 30,00%, 22,31 ft / 6,80 m, 18,70 ft / 5,70 m
- Forward deck: 30,00%, 11,15 ft / 3,40 m, 11,15 ft / 3,40 m
- Aft deck: 25,00%, 11,15 ft / 3,40 m, 11,15 ft / 3,40 m
- Quarter deck: 15,00%, 11,15 ft / 3,40 m, 11,15 ft / 3,40 m
- Average freeboard: 13,85 ft / 4,22 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 184,4%
- Above water (accommodation/working, high = better): 88,3%
Waterplane Area: 10 526 Square feet or 978 Square metres
Displacement factor (Displacement / loading): 67%
Structure weight / hull surface area: 39 lbs/sq ft or 191 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0,48
- Longitudinal: 0,78
- Overall: 0,50




The Shannon class destroyer was designed after US destroyers such as the Benson and was first launched in early 1940 after the lead ship had passed her sea trials. The Shannon class was considered a highly successful design and was the highest produced destroyer of World War Two. Unfortunately, nearly half of these destroyers never saw combat because of Japan's surprise attack on Antara, which destroyed most ships that were anchored in port. They were praised for their ruggedness, speed and artillery fire power. Following the surprise attack in 1940, the remaining destroyers underwent extensive repairs and refits. By 1941, most Antaran ships, especially the Shannon class destroyers, received a huge buff in AA power. Sadly most destroyers of this class were sunk by the end of the war, but proved to be a valuable member of the Antaran navy.

Notable Ships





Ships in class -Entered Service - Fate

Shannon - 1939 - Sold to Brazilian Navy 1954
Daisy - 1940 - Sold to Brazilian Navy 1954
Hemsley - 1940 - Sunk by aircraft 1940
Sheridon - 1940 - Sunk by aircraft 1940
Erin - 1940 - Preserved as museum
Hudson - 1940 - Sunk by aircraft 1940
Charlette - 1940 - Sunk by friendly fire 1943
Harry - 1940 - Sunk by surface fire 1944
Peyton - 1940 - Sunk by surface fire 1942
Ensworth - 1940 - Sunk by aircraft 1940
Zachary - 1940 - Sunk by submarine 1944
Michael - 1940 - Sunk by surface fire 1944
Becker - 1940 - Scrapped 1960
Keagon (converted to minelayer)- 1940 - Sunk by aircraft 1940
Abigail (converted to minelayer)- 1940 - Sunk by aircraft 1944
Terez (converted to minelayer)- 1940 - Sold for scrap 1958
Ashton - 1941 - Sunk by collision with ARS Becker 1951
Andre - 1941 - Sunk by submarine 1944
Beal - 1941 - Sunk as target 1971

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I think the shafts should extend further aft and have at least one support fairing leading up to the hull. Also, I don't think these ships would have radar in 1941... maybe 3-4 units receive it by 1942 (an SC air search on the mast) and then by 1943 I think you'd see the arrangement you have now (with SG and SC on the mast). By 1943/1944 the SC would likely be replaced with the more efficient SC-2 and SC-3.

The hull shading is pretty good though I would consider maybe angling it forward a little more.

The shading around the sonar dome kind of bothers me, I can tell it's the same style I used on the original Fletcher drawings and it doesn't represent the feature well. I wouldn't "cut out" so much of the keel when showing it. Again, take a look at the Fletchers on my deviant art page for an idea.

From reading the destroyer force disposition you've made it seems like the Antaran Navy fights harder than most (or is just incompentent... LOL). I see the usual Shipbucket tradition of putting too many preserved museum ships in your navies continues unabated (I have always been very, very anti-museum ships in AUs).

I would also be interested in seeing dates entered service and date of final disposition - "scrapped 1961" or "sunk as target RIMPAC 1980" or "sold to Greece 1971" or whatever would be more interesting than a simple "retired".

Anyway I think it's obvious that you have mostly mastered the style of drawing, now with a few improvements I think you can start making some pretty nice drawings.

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USN components, camouflage colors, & reference links (World War II only)

I made all the changes

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Looking much better.

Can we maybe see some mid-war refits? Perhaps a version similar to the 1943 Fletchers, with 40mm Bofors abeam the pilot house and after stack, with a lot more 20mm Oerlikons everywhere... and maybe a destroyer minelayer version with mine tracks along the sides of the aft superstructure. Also maybe an anti-kamikaze refit like the 1945 USS Kidd?

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USN components, camouflage colors, & reference links (World War II only)

I'll do it.

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I'm happy that you followed my suggestion, it makes me feel good that i was able to help someone out .

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Salide - Denton - The Interrealms

I am not very active on the forums anymore, but work is still being done on my AUs. Visit the Salidan Altiverse Page on the SB Wiki for more information. All current work is being done on Google Docs.
If anyone wishes for their nations to interact with the countries of the Salidan Altiverse, please send me a PM, after which we can further discuss through email.

Can you show me an example of this mine layer thing you speak of?

Here's the 1943 refit

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Thanks for the pic, Krakatoa.

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Shannon Class - Destroyer Minelayer conversion

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