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Hood
Post subject: Re: Blackbuck's Designs (Non Atlantia AU)Posted: September 30th, 2011, 11:21 am
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Interesting design, I like it. Reminds me of those inter-war light Italian cruisers wit a touch of mid-1930s RN Leander/ York class look too.

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Blackbuck
Post subject: Re: Blackbuck's Designs (Non Atlantia AU)Posted: September 30th, 2011, 3:28 pm
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Bang on. She was inspired by the enlarged Towns as well as the. Condottieris

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Blackbuck
Post subject: RE: Destroyers...Posted: October 6th, 2011, 9:00 pm
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Had a go at drawing up a destroyer after seeing WWII44's attempt. Taken about an hour and a half to two hours so far. Please tell me if anything doesn't match up. Quite quick and dirty and not in a template but It will get a proper template uploaded later tonight. I'm aware there are no props also.

[ img ]
Quote:
XNS Assassan, Between a Rock and a Hard Place Destroyer laid down 1928

Displacement:
1,814 t light; 1,915 t standard; 2,016 t normal; 2,097 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
(354.58 ft / 350.00 ft) x 32.00 ft x (14.00 / 14.39 ft)
(108.08 m / 106.68 m) x 9.75 m x (4.27 / 4.39 m)

Armament:
4 - 5.51" / 140 mm 50.0 cal guns - 88.63lbs / 40.20kg shells, 300 per gun
Breech loading guns in deck and hoist mounts, 1925 Model
4 x Single mounts on centreline ends, evenly spread
2 raised mounts - superfiring
2 - 1.77" / 45.0 mm 60.0 cal guns - 3.04lbs / 1.38kg shells, 400 per gun
Anti-air guns in deck mounts, 1925 Model
2 x Single mounts on sides amidships
2 raised mounts
8 - 0.51" / 13.0 mm 41.0 cal guns - 0.07lbs / 0.03kg shells, 1,500 per gun
Machine guns in deck mounts, 1919 Model
2 x Twin mounts on centreline, forward deck aft
2 raised mounts
2 x Twin mounts on sides, aft deck forward
2 raised mounts
Weight of broadside 361 lbs / 164 kg
Main Torpedoes
6 - 21.0" / 533 mm, 17.00 ft / 5.18 m torpedoes - 1.157 t each, 6.945 t total
In 2 sets of deck mounted centre rotating tubes
Main DC/AS Mortars
4 - 110.23 lbs / 50.00 kg Depth Charges + 12 reloads - 0.787 t total
in Depth charge throwers

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 0.50" / 13 mm 150.00 ft / 45.72 m 10.00 ft / 3.05 m
Ends: 0.50" / 13 mm 50.00 ft / 15.24 m 10.00 ft / 3.05 m
150.00 ft / 45.72 m Unarmoured ends
Upper: 0.50" / 13 mm 150.00 ft / 45.72 m 10.00 ft / 3.05 m
Main Belt covers 66 % of normal length
Main belt does not fully cover magazines and engineering spaces

- Armoured deck - single deck:
For and Aft decks: 0.50" / 13 mm
Forecastle: 0.50" / 13 mm Quarter deck: 0.50" / 13 mm

- Conning towers: Forward 2.00" / 51 mm, Aft 2.00" / 51 mm

Machinery:
Oil fired boilers, steam turbines,
Direct drive, 2 shafts, 40,061 shp / 29,886 Kw = 33.00 kts
Range 2,500nm at 13.00 kts
Bunker at max displacement = 182 tons

Complement:
149 - 195

Cost:
£0.912 million / $3.648 million

Distribution of weights at normal displacement:
Armament: 123 tons, 6.1 %
- Guns: 107 tons, 5.3 %
- Weapons: 15 tons, 0.7 %
Armour: 156 tons, 7.8 %
- Belts: 74 tons, 3.7 %
- Armour Deck: 68 tons, 3.4 %
- Conning Towers: 14 tons, 0.7 %
Machinery: 981 tons, 48.7 %
Hull, fittings & equipment: 554 tons, 27.5 %
Fuel, ammunition & stores: 202 tons, 10.0 %
Miscellaneous weights: 0 tons, 0.0 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
506 lbs / 229 Kg = 6.0 x 5.5 " / 140 mm shells or 0.3 torpedoes
Stability (Unstable if below 1.00): 1.08
Metacentric height 1.0 ft / 0.3 m
Roll period: 13.1 seconds
Steadiness - As gun platform (Average = 50 %): 66 %
- Recoil effect (Restricted arc if above 1.00): 1.14
Seaboat quality (Average = 1.00): 1.32

Hull form characteristics:
Hull has rise forward of midbreak,
a normal bow and small transom stern
Block coefficient (normal/deep): 0.450 / 0.455
Length to Beam Ratio: 10.94 : 1
'Natural speed' for length: 20.06 kts
Power going to wave formation at top speed: 67 %
Trim (Max stability = 0, Max steadiness = 100): 50
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: 20.00 %, 26.00 ft / 7.92 m, 22.00 ft / 6.71 m
- Forward deck: 20.00 %, 22.00 ft / 6.71 m, 22.00 ft / 6.71 m
- Aft deck: 40.00 %, 14.00 ft / 4.27 m, 14.00 ft / 4.27 m
- Quarter deck: 20.00 %, 14.00 ft / 4.27 m, 14.00 ft / 4.27 m
- Average freeboard: 17.52 ft / 5.34 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 176.0 %
- Above water (accommodation/working, high = better): 131.1 %
Waterplane Area: 7,310 Square feet or 679 Square metres
Displacement factor (Displacement / loading): 67 %
Structure weight / hull surface area: 34 lbs/sq ft or 165 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.45
- Longitudinal: 3.45
- Overall: 0.55
Cramped machinery, storage, compartmentation space
Excellent accommodation and workspace room
Good seaboat, rides out heavy weather easily

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Thiel
Post subject: Re: Blackbuck's Designs (Non Atlantia AU)Posted: October 6th, 2011, 9:49 pm
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Main armament is a bit on the heavy side.
The RN considered 4.7" the heaviest shell practical without some type of assisted loading.

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Blackbuck
Post subject: Re: Blackbuck's Designs (Non Atlantia AU)Posted: October 6th, 2011, 10:04 pm
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I can imagine shifting a 90 or so pound shell one piece or not would be an unpleasant experience to have to repeat. I suppose I could go with either the 120mm/45 or 105mm/40 that I've got worked out for some of the older pax stuff and the cruiser previously.

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Thiel
Post subject: Re: RE: Destroyers...Posted: October 7th, 2011, 8:14 am
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SpringSharp wrote:
Steadiness - As gun platform (Average = 50 %): 66 %
- Recoil effect (Restricted arc if above 1.00): 1.14
That could pose a problem

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Portsmouth Bill
Post subject: Re: Blackbuck's Designs (Non Atlantia AU)Posted: October 7th, 2011, 8:25 am
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I would consider extending the forecastle aft, to the end of the bridge structure. Placing the larger aa on the walkways above the torpedo tubes could cause problems, with resupply and maybe needing more support? It seems a large design, in the category of the Italian and French destroyers built interwar, but in principle she could be built; anyway, an interesting design :)


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Novice
Post subject: Re: Blackbuck's Designs (Non Atlantia AU)Posted: October 7th, 2011, 11:19 am
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very plausible design, but I'm with Bill here as for extending the forecastle-deck aft. Also may I suggest you enlarge the rudder, as it seems a bit small. I would also change the shape of the main armament mountings, as they look too much like the Mk.19 twin 4" gun of the RN (a good one may be found in the Italian section of the Never Built archive where you'll findthis destroyer, which had 135mm guns.

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Blackbuck
Post subject: Re: Blackbuck's Designs (Non Atlantia AU)Posted: October 7th, 2011, 5:24 pm
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I shall take these points into consideration and amend the design.

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Blackbuck
Post subject: Thisionia - Aegir Klasse DDGPosted: March 17th, 2012, 7:12 pm
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I don't put much in here but hey. What follows is something for a nation that exists parallel to Atlantia in the spin off from it. Between Atlantia and the main land to the West are the Islands of Molatrea and Lithentis. Straddling the coastline are the nations of Ethevia and Thisionia, the latter of which is to who's navy this class of destroyers belongs. To put it into perspective Thisionia occupies a peninsula similar to that of Korea in the real world. Ethevia is located at the top of this peninsula and for the past 30 years there have been sporadic skirmishes between the two nations which culminated in the 1995 and 2001 naval incidents between the two nations. In 1995 a maritime patrol aircraft detected two vessels belonging to the Ethevian navy encroaching into Thisionian territorial waters (how they got to the location without raising the alarm is still debated) After shadowing the vessels for some time the patrol aircraft flew in lower over the vessels ordering them to leave Thisionian waters immediately, after a second pass one of the vessels launched a SAM at the patrol aircraft which crashed into cliffs some minutes later in the next 30-40 minutes a flight of four Mirage F1s and two Mirage 2000s entered the fray and returned fire upon the Ethevian vessels with exocets and LGBs of the 3 exocets launched 1 failed to detonate the other two exploded in the same ship all four of the GBU-24s deployed hit their respective targets (three to the second vessel and one to the first) the second vessel immediately began to sink from the combined effects of three 2000lb bombs detonating inside her whilst the first remained buoyant but seriously damaged and on fire. Around 30 minutes after the first vessel also sank. Following this incident measures were taken to bulk up the Thisionian blue water forces. From 1996 onwards Atlantian and Molatrean naval vessels were deployed to the area surrounding the peninsula to keep the peace between the two nations. This worked until 2001 when a fast inflatable got in close to the corvette HMAtS A. E. Brown which resulted in the death of 16 and injury of 32 Atlantian sailors and the writing off of the Brown. After this incident Atlantian forces were withdrawn from the are the government in power at the time instead decided to supply the Thisionian government with hardware nearly identical to that used by Atlantia at least in capability and thus the FSC-D project began The first two vessels to be completed were the carriers Adler and Zwillinge followed by two submarines between 2007 and 2010. The Aegir class were all laid down in 2010 and have just been fully commissioned as a class.

Now onto the class...

[ img ]

Ships in the class:
Name - Laid Down - Launched - Comissioned - Home Port
  • TKs Aegir - 12/03/10 - 06/07/11 - 04/01/12 - Freiwörth
  • TKs Ran - 13/03/10 - 10/07/11 - 06/01/12 - Freiwörth
  • TKs Forseti - 24/04/10 - 12/08/11 - 10/01/12 - Neuhaven
  • TKs Njord - 05/06/10 - 26/08/11 - 30/01/12 - Neuhaven
  • TKs Tyr - 30/08/10 - 25/10/11 - 02/02/12 - Menrach
  • TKs Vor - 04/09/10 - 14/11/11 - 10/02/12 - Menrach
Length Oa.: 182.57m
Beam: 20m
Draught: 7.01m
Displacement Standard: 9,761tonnes
Displacement at full load: 10,831tonnes
Propulsion: COGES with auxiliary fuel cells
  • 2x Rolls Royce Marine Trent MT50 gas turbines with two 7MW Siemens Westinghouse exhaust steam turbines
  • 2x 100kW Siemens-Hitachi fuel cells
Range: 12,500km @ 20knots - 6,200km @ 30knots
Endurance: 120 days
Crew complement: 270 plus 20 air crew and berthing for 30 more
Speed: 35knots max. 20knots cruise

Armament:
1x 127mm/64 multi-purpose gun [HE-PD, HE-VT, HEI-MT, HEAB, Vulcano + Illum-MT]
1x 64 cell AVLS [16x Armaros B, 16x Armaros L and 32 Armaros M]
1x 24 cell AVLS [16x LRSM-A and 8x Kingfisher Mk.III]
2x 16 cell AVLS [24x Armaros PD-I, 24x Armaros PD-R and 16x Armaros M]
3x 40mm/70 twin multi-purpose guns [HE-PD, HEAB/3P]
4x 12.7mm Gatling guns
1x 18 cell CISAM launcher
4x 330mm ASW tubes
X amount of GPMGs and crew small arms

Sensors:
Guardian E MFR
Gatekeeper 200E surface search radar
Skyguard E 3D air-search radar
Argus 100 electro-optical targeting gimbal
Neptune E multi function sonar
Seamaster 60 nav-radar

Electronic Warfare:
Caerus B multi-spectrum jammer
AAE 'HArK' hard kill countermeasure dispensers
Blizzard A en-masse chaff dispensers
Blizzard B en-masse flare dispensers
Blizzard C acoustic decoy launchers
Medusa A IR/Laser jammers
Cricket A IFF interrogators

Communications:
Multi-band VHF/UHF
Ku band SATCOM
IDCS network a-la Link 16

Aircraft:
2x Super Lynx 300s are carried normally though they can also embark Army AW70s if required. Once cleared for operational use the class will also operate S-100 uavs and have the ability to interoperate with Atlantian Mosquitoes.

Boats:
4x 7m RHIBs for general use amidships
2x 10m Assault RHIBs for embarked troops when necessary
or
1x 10m RHIB and a mission container for a variable depth towed sonar

------------

I've literally been working on this drawing since early January and have been through at least 5 other iterations of it before I came to this scheme. I'm reasonably proud of how it has turned out too. I have to thank heuhen for the inspiration as it's his Madré class drawing from which this idea stemmed.

~Mark.

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Last edited by Blackbuck on April 1st, 2012, 11:37 pm, edited 1 time in total.

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