I know, we're still mired in late 1916...
The deployment of the protected cruiser Guyana and blimp A-9 to the Indian Ocean was a test of the concept of aerial scouting for the Armada. In general, Rear-Admiral Ramsey found the pairing to be quite useful, from spotting refugee boats and scouting coastal cities to (later) watching for RRC warships transiting the Strait of Malacca. On the other hand, Guyana's support facilities were somewhat modest, and A-9 was consequently exposed to a lot of wear-and-tear, eventually being destroyed during a storm in September 1916.
Although planning for a new blimp-carrying cruiser does continue, the Armada's follow-up plans have concentrated on a "mobile aerodrome" concept in which a Type 0 airship hanger would be mounted on an auxiliary-type hull. Such a vessel would be used as a based for blimp or airship operations in regions where no such facilities existed ashore. It could also support blimps being forward-deployed to airship cruisers.
Notional plans for a smaller vessel with a large, rolling, shuttered roof were put forward, but arguments were made about the feasibility of constructing and maintaining such a device. Its ability to support loads (the blimp, service crews, etc) was also questioned. In the end, a conventional hanger, with doors facing aft, was settled upon, though a longer hull would be necessary to accommodate the landing deck aft.
The Yubarta will have a modest defensive armament, though it is recognized that the bulk of the hanger will make her a very inviting target in the event of a surface engagement. Ideally, her role in combat will be taken from a safe anchorage well out of sight of any enemy forces.
(http://img.photobucket.com/albums/v20/sharpj/superblimpcv7a.png)
Yubarta, laid down 1917 (Engine 1916)
Displacement:
6,345 t light; 6,516 t standard; 7,665 t normal; 8,585 t full load
Dimensions: Length overall / water x beam x draught
446.73 ft / 436.35 ft x 91.86 ft x 11.15 ft (normal load)
136.16 m / 133.00 m x 28.00 m x 3.40 m
Armament:
1 - 5.51" / 140 mm guns in single mounts, 83.72lbs / 37.97kg shells, 1912 Model
Breech loading gun in a deck mount with hoist
on centreline forward
4 - 2.56" / 65.0 mm guns in single mounts, 8.38lbs / 3.80kg shells, 1912 Model
Anti-aircraft guns in deck mounts
on side, all amidships, all raised mounts - superfiring
6 - 0.31" / 8.0 mm guns in single mounts, 0.02lbs / 0.01kg shells, 1912 Model
Machine guns in deck mounts
on side, evenly spread, all raised mounts
Weight of broadside 117 lbs / 53 kg
Shells per gun, main battery: 250
Armour:
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 0.98" / 25 mm 0.98" / 25 mm 2.95" / 75 mm
3rd: 0.98" / 25 mm - -
4th: 0.39" / 10 mm - -
Machinery:
Oil fired boilers, steam turbines,
Direct drive, 2 shafts, 7,414 shp / 5,531 Kw = 16.36 kts
Range 12,000nm at 12.00 kts (Bunkerage = 2,068 tons)
Complement:
409 - 532
Cost:
£0.273 million / $1.092 million
Distribution of weights at normal displacement:
Armament: 15 tons, 0.2 %
Armour: 9 tons, 0.1 %
- Belts: 0 tons, 0.0 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 9 tons, 0.1 %
- Armour Deck: 0 tons, 0.0 %
- Conning Tower: 0 tons, 0.0 %
Machinery: 276 tons, 3.6 %
Hull, fittings & equipment: 4,816 tons, 62.8 %
Fuel, ammunition & stores: 1,321 tons, 17.2 %
Miscellaneous weights: 1,229 tons, 16.0 %
-1,050 t: Facilities for two SSZ type blimps, including hanger, hydrogen cracker, hydrogen storage, mooring mast, workshop & stores
-100 t: Air group workspace (weather office, photo development, etc.)
-54 t: Weight reserve
-25 t: Long-range wireless
Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
88,276 lbs / 40,041 Kg = 1,054.4 x 5.5 " / 140 mm shells or 9.1 torpedoes
Stability (Unstable if below 1.00): 1.14
Metacentric height 5.7 ft / 1.7 m
Roll period: 16.2 seconds
Steadiness - As gun platform (Average = 50 %): 70 %
- Recoil effect (Restricted arc if above 1.00): 0.02
Seaboat quality (Average = 1.00): 2.00
Hull form characteristics:
Hull has low forecastle, rise forward of midbreak, low quarterdeck
Block coefficient: 0.600
Length to Beam Ratio: 4.75 : 1
'Natural speed' for length: 20.89 kts
Power going to wave formation at top speed: 36 %
Trim (Max stability = 0, Max steadiness = 100): 35
Bow angle (Positive = bow angles forward): 10.00 degrees
Stern overhang: 6.56 ft / 2.00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 21.65 ft / 6.60 m
- Forecastle (27 %): 21.65 ft / 6.60 m (67.59 ft / 20.60 m aft of break)
- Mid (68 %): 67.59 ft / 20.60 m (21.65 ft / 6.60 m aft of break)
- Quarterdeck (16 %): 13.78 ft / 4.20 m (21.65 ft / 6.60 m before break)
- Stern: 13.78 ft / 4.20 m
- Average freeboard: 39.23 ft / 11.96 m
Ship tends to be wet forward
Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 32.2 %
- Above water (accommodation/working, high = better): 746.7 %
Waterplane Area: 29,317 Square feet or 2,724 Square metres
Displacement factor (Displacement / loading): 402 %
Structure weight / hull surface area: 102 lbs/sq ft or 499 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.77
- Longitudinal: 10.56
- Overall: 1.00
Hull space for machinery, storage, compartmentation is excellent
Room for accommodation and workspaces is excellent
Ship has slow, easy roll, a good, steady gun platform
Excellent seaboat, comfortable, can fire her guns in the heaviest weather
Whoever came up with that design ought to be shot! :o
Because of how useful it could be, or because of how ugly it is?
He should get a medal for the usefulness of the vessel but should be shot for the hideous look of the vessel. :D
Consider it a defensive measure - it will be difficult to target her if she's that repulsive.
France hires that genious immediatly.
So ugly, it becomes magnificent.
QuoteConsider it a defensive measure - it will be difficult to target her if she's that repulsive.
It's more likely going to be a shell/bomb/torpedo magnet. Trying to sink the ship as fast as possible so the ugly stain is removed from the surface of the ocean. ;D
I would be worried about how she would behave if there would happen to be blowing any form of wind (and that has been known to happen at sea). With such a huge surface area working as sail I would suspect that she can start to behave quite oddly in even moderate winds, and have problem holding course in some side winds.
I agree - that could be a problem. On the other hand, it wouldn't be any worse than a small aircraft carrier would face, would it?
I agree with Korpen. This ship will be very vulnerable in a storm.
EDIT : yes Rock, but your ship is very high. An aircraft carrier is more small on the water, more aerodynamic. Without wanting to hurt you, your Republican Highness ? :)
No offence taken, if that's what you mean. I'm just trying to gauge how serious a problem this would be.
A very serious problem, her draugth is shallow compared to the hull. So not even the resistance of the seawater would help her a lot against the wind.
Imagine the effect of an iceberg ,but reversed.
Quote from: The Rock Doctor on August 26, 2009, 08:05:02 AM
I agree - that could be a problem. On the other hand, it wouldn't be any worse than a small aircraft carrier would face, would it?
It would, as cider say, she catch more wind. Also, a carrier usally had allot mor power to push with, even a fairly normal 10m/s wind would most likely be felt by this ship I think.
Excellent - so I have a white elephant in the making.
I hate to pile on, but I agree that her shallow draft, combined with that tall sail area might be a problem.
I expect the beam is fixed by the width of the hanger. I wonder if a radically different hull design might be necessary instead. Possibly a stepped down hull with more freeboard forward, but less aft, so that the hanger itself is more "nestled" in the hull?
In general, I think you need to go for even more reserve buoyancy to account for what is probably more of a topweight issue than SS realizes. At least that's my opinion.
How about a retractable canvas hangar?
Quote from: Desertfox on August 26, 2009, 10:16:09 AM
How about a retractable canvas hangar?
Would that not on the other hand go against the purpose of the hangar; to shelter and protect the blimps from strong winds and other weather conditions?
Is it too early for a catamaran twin hull - well ballasted and with fin stabilisers ;D
It probably would be, and there's the problem of correctly simming it in SS.
On a more practical note, the Matadi class sloops are a larger cousin to the recent Puyo class sloops, and will be found escorting fleet auxiliaries and civilian convoys. The class has been designed with an older generation of machinery to allow orders to be placed with overseas yards - in this case, Romania has been contracted to construct at least two.
Though the type is as large as an S class destroyer, and almost as heavily armed, it trades speed for seakeeping and the hull strength necessary for a long career on the open ocean.
(http://img.photobucket.com/albums/v20/sharpj/sloop17.png)
Enter ship name, Enter country Enter ship type laid down 1916 (Engine 1909)
Displacement:
984 t light; 1,028 t standard; 1,283 t normal; 1,486 t full load
Dimensions: Length overall / water x beam x draught
266.30 ft / 262.14 ft x 31.17 ft x 10.99 ft (normal load)
81.17 m / 79.90 m x 9.50 m x 3.35 m
Armament:
4 - 3.94" / 100 mm guns in single mounts, 30.51lbs / 13.84kg shells, 1916 Model
Breech loading guns in deck mounts
on centreline ends, evenly spread, 2 raised mounts - superfiring
1 - 2.56" / 65.0 mm guns in single mounts, 8.38lbs / 3.80kg shells, 1916 Model
Anti-aircraft gun in deck mount
on centreline amidships, 1 raised gun
2 - 0.31" / 8.0 mm guns in single mounts, 0.02lbs / 0.01kg shells, 1916 Model
Machine guns in deck mounts
on side, evenly spread, all raised mounts
Weight of broadside 130 lbs / 59 kg
Shells per gun, main battery: 250
4 - 21.0" / 533 mm above water torpedoes
Armour:
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 0.98" / 25 mm 0.39" / 10 mm -
2nd: 0.98" / 25 mm - -
3rd: 0.39" / 10 mm - -
Machinery:
Oil fired boilers, steam turbines,
Direct drive, 2 shafts, 8,000 shp / 5,968 Kw = 22.36 kts
Range 10,000nm at 10.00 kts (Bunkerage = 458 tons)
Complement:
106 - 139
Cost:
£0.162 million / $0.648 million
Distribution of weights at normal displacement:
Armament: 16 tons, 1.3 %
Armour: 7 tons, 0.6 %
- Belts: 0 tons, 0.0 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 7 tons, 0.6 %
- Armour Deck: 0 tons, 0.0 %
- Conning Tower: 0 tons, 0.0 %
Machinery: 364 tons, 28.3 %
Hull, fittings & equipment: 533 tons, 41.5 %
Fuel, ammunition & stores: 299 tons, 23.3 %
Miscellaneous weights: 64 tons, 5.0 %
-25 t: Long range wireless
-25 t: Escort group command facilities
-6 t: Torpedoes
-4 t: Twelve depth charges
-4 t : Weight reserve
Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
1,766 lbs / 801 Kg = 57.9 x 3.9 " / 100 mm shells or 0.6 torpedoes
Stability (Unstable if below 1.00): 1.27
Metacentric height 1.3 ft / 0.4 m
Roll period: 11.3 seconds
Steadiness - As gun platform (Average = 50 %): 70 %
- Recoil effect (Restricted arc if above 1.00): 0.20
Seaboat quality (Average = 1.00): 2.00
Hull form characteristics:
Hull has rise forward of midbreak
Block coefficient: 0.500
Length to Beam Ratio: 8.41 : 1
'Natural speed' for length: 16.19 kts
Power going to wave formation at top speed: 60 %
Trim (Max stability = 0, Max steadiness = 100): 35
Bow angle (Positive = bow angles forward): 10.00 degrees
Stern overhang: -3.28 ft / -1.00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 23.62 ft / 7.20 m
- Forecastle (20 %): 19.69 ft / 6.00 m
- Mid (50 %): 19.69 ft / 6.00 m (11.81 ft / 3.60 m aft of break)
- Quarterdeck (15 %): 11.81 ft / 3.60 m
- Stern: 11.81 ft / 3.60 m
- Average freeboard: 16.06 ft / 4.90 m
Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 108.1 %
- Above water (accommodation/working, high = better): 100.2 %
Waterplane Area: 5,444 Square feet or 506 Square metres
Displacement factor (Displacement / loading): 138 %
Structure weight / hull surface area: 43 lbs/sq ft or 212 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.81
- Longitudinal: 6.55
- Overall: 1.00
Hull space for machinery, storage, compartmentation is adequate
Room for accommodation and workspaces is adequate
Ship has slow, easy roll, a good, steady gun platform
Excellent seaboat, comfortable, can fire her guns in the heaviest weather
Well, can't protest, I'm building them. :). On a more practical note, how about adding a few mines so it can act as a minelayer during wars.
I suspect it'd be easier to find and requisition civilian ships to do defensive minelaying than to do the long-range escort function. Best to use them in their niche, I think.
The whole class probably doesn't need long-range wireless sets though.
Other than that, I don't see a sloop here. I see a Maori destroyer.
;D
Long range radio because its a ocean-patrol/escort sloop
Right, I understand that. But unless they always operate alone, some of them could carry a different outfit.
At least that was my thought on the 300 ton Confederate sloops a while back.
See, thats the difference ;). Your ships were 300 tons. This ship is more than 3 times the size, although I can't really tell where all that extra tons are going.
around 4.5 knots of speed, for starters.
not much, for what he could have gotten.
This ship also has twice as many slightly heavier guns, and torpedoes. I think the Colombians are getting their 900 odd tons worth.
Having just compared, I think so to.
Yubarta....
It's a white elephant.
It's a complete oddball.
It's so ugly it makes French predreadnoughs look like ballet queens.
I love it. :D
I reckon the sloops will rarely operate together - more likely, each will have its own charge (an oiler, for instance) or be the largest escort of a civilian convoy, with smaller sloops and minesweepers making up the remainder of the escort.
On that note, I remember now that I was going to assign some of that miscellaneous weight to command facilities, not marine constables.
BR: Dude, you need help.
I know. Unfortunatly, I can't find any help that's professional enough.
The Florencia class gunboats are designed for anti-piracy patrols in the western Caribbean - specifically, boarding and inspection of suspected pirate vessels. To this end, they are well-equipped with a range of rapid-fire ordnance, and are armored against small-arms fire. A squad of marine constables are carried, both for boarding other vessels or, in the worst case, defending the gunboat against pirate boarders.
It is expected that the type would also be useful in escorting coastal or local convoys, though no ASW capability is presently included.
The armament and armor preclude the same speed and operating radius found in larger Colombian sloops, but performance is adequate for the area and the gunboat is unlikely to be outrun by captured merchant ships usually favored by pirates. In the face of something faster or more powerful, a long-range wireless allows the gunboat to call in heavier Armada forces.
Production of four to six units is expected, at a rate of one every six months.
(http://img.photobucket.com/albums/v20/sharpj/gunboat17b.png)
Enter ship name, Enter country Enter ship type laid down 1916
Displacement:
497 t light; 523 t standard; 582 t normal; 630 t full load
Dimensions: Length overall / water x beam x draught
209.97 ft / 209.97 ft x 26.25 ft x 8.04 ft (normal load)
64.00 m / 64.00 m x 8.00 m x 2.45 m
Armament:
3 - 3.94" / 100 mm guns in single mounts, 30.51lbs / 13.84kg shells, 1916 Model
Breech loading guns in deck mounts
on centreline ends, majority aft, 1 raised mount aft
2 - 1.85" / 47.0 mm guns in single mounts, 3.17lbs / 1.44kg shells, 1916 Model
Breech loading guns in deck mounts
on side, all forward, all raised mounts - superfiring
4 - 0.31" / 8.0 mm guns in single mounts, 0.02lbs / 0.01kg shells, 1916 Model
Breech loading guns in deck mounts
on side, evenly spread
Weight of broadside 98 lbs / 44 kg
Shells per gun, main battery: 250
Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 0.98" / 25 mm 131.23 ft / 40.00 m 11.81 ft / 3.60 m
Ends: Unarmoured
Upper: 0.98" / 25 mm 65.62 ft / 20.00 m 8.01 ft / 2.44 m
Main Belt covers 96 % of normal length
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 0.98" / 25 mm 0.39" / 10 mm -
2nd: 0.98" / 25 mm - -
3rd: 0.39" / 10 mm - -
- Armour deck: 0.50" / 13 mm, Conning tower: 0.98" / 25 mm
Machinery:
Oil fired boilers, steam turbines,
Geared drive, 2 shafts, 1,300 shp / 970 Kw = 15.70 kts
Range 5,000nm at 10.00 kts (Bunkerage = 107 tons)
Complement:
59 - 77
Cost:
£0.056 million / $0.226 million
Distribution of weights at normal displacement:
Armament: 12 tons, 2.1 %
Armour: 132 tons, 22.8 %
- Belts: 91 tons, 15.7 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 7 tons, 1.2 %
- Armour Deck: 33 tons, 5.6 %
- Conning Tower: 1 tons, 0.3 %
Machinery: 48 tons, 8.3 %
Hull, fittings & equipment: 252 tons, 43.2 %
Fuel, ammunition & stores: 85 tons, 14.7 %
Miscellaneous weights: 52 tons, 8.9 %
-25 t: Long range wireless
-24 t: Accommodation for 12 Marine Constables
-3 t:: Weight reserve
Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
1,689 lbs / 766 Kg = 55.4 x 3.9 " / 100 mm shells or 1.1 torpedoes
Stability (Unstable if below 1.00): 1.14
Metacentric height 0.9 ft / 0.3 m
Roll period: 11.9 seconds
Steadiness - As gun platform (Average = 50 %): 70 %
- Recoil effect (Restricted arc if above 1.00): 0.27
Seaboat quality (Average = 1.00): 2.00
Hull form characteristics:
Hull has rise forward of midbreak
Block coefficient: 0.460
Length to Beam Ratio: 8.00 : 1
'Natural speed' for length: 14.49 kts
Power going to wave formation at top speed: 45 %
Trim (Max stability = 0, Max steadiness = 100): 35
Bow angle (Positive = bow angles forward): 0.00 degrees
Stern overhang: 0.00 ft / 0.00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 18.70 ft / 5.70 m
- Forecastle (20 %): 15.75 ft / 4.80 m
- Mid (50 %): 15.75 ft / 4.80 m (7.87 ft / 2.40 m aft of break)
- Quarterdeck (15 %): 7.87 ft / 2.40 m
- Stern: 7.87 ft / 2.40 m
- Average freeboard: 12.05 ft / 3.67 m
Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 55.1 %
- Above water (accommodation/working, high = better): 131.7 %
Waterplane Area: 3,545 Square feet or 329 Square metres
Displacement factor (Displacement / loading): 154 %
Structure weight / hull surface area: 35 lbs/sq ft or 173 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.83
- Longitudinal: 5.03
- Overall: 1.00
Hull space for machinery, storage, compartmentation is excellent
Room for accommodation and workspaces is excellent
Ship has slow, easy roll, a good, steady gun platform
Excellent seaboat, comfortable, can fire her guns in the heaviest weather