WesWorld

Designed to be base and repair ships for either six 200 t ASW launches, twelve MTBs, or a combination thereof. These would most likely be operating at more distant locations like Diego Garcia, As Salif, etc.

Much of the ship's working facilities are forward, with side and top doors for movement of cargo and munitions. The blocky area aft is the accommodation area.

Four are to be built in 1928, with a notional two ship group following in 1930.



TN28, laid down 1928

396 t = accommodation for 198 "tendee" crew (at 2 t per)
168 t = fuel for "tendees" (6 full loads for launches)
78 t = ammunition and stores for tendees (6 full loads for launches)
25 t = flag facilities
25 t = medical facilities
100 t = workshops
108 t = repair materials

Length, 70.0 m x Beam, 13.0 m x Depth, 4.0 m
2202 tonnes normal displacement (1929 tonnes standard)

Main battery: 2 x 10.5-cm
Secondary battery: 4 x 3.5-cm
AA battery: 4 x 1.5-cm

Weight of broadside: 35 kg

Hull unarmored

Battery armor:
Main, 3.0 cm shields / secondary, 2.0 cm shields
AA, 2.0 cm shields

Maximum speed for 2997 shaft kw = 16.68 knots
Approximate cruising radius, 8000 nm / 12 knots

Typical complement: 161-209


Estimated cost, $1.394 million (£349,000)

Remarks:

Excellent seaboat; comfortable and able to fight her guns
in the heaviest weather.

Magazines and engineering spaces are roomy, with superior
watertight subdivision.

Ship is roomy, with superior accommodation and working space.


Distribution of weights:
Percent
normal
displacement:

Armament ......................... 10 tonnes = 0 pct
Armor, total ..................... 5 tonnes = 0 pct

Armament 5 tonnes = 0 pct

Machinery ........................ 125 tonnes = 6 pct
Hull and fittings; equipment ..... 839 tonnes = 38 pct
Fuel, ammunition, stores ......... 323 tonnes = 15 pct
Miscellaneous weights ............ 900 tonnes = 41 pct
-----
2202 tonnes = 100 pct

Estimated metacentric height, 0.4 m

Displacement summary:

Light ship: 1879 tonnes
Standard displacement: 1929 tonnes
Normal service: 2202 tonnes
Full load: 2411 tonnes

Loading submergence 652 tonnes/metre

+++++++++++++++++++++++++


Estimated overall survivability and seakeeping ability:

Relative margin of stability: 1.01

Shellfire needed to sink: 1975 kg = 123.0 x 10.5-cm shells
(Approximates weight of penetrating
shell hits needed to sink ship,
not counting critical hits)

Torpedoes needed to sink: 1.4
(Approximates number of 'typical'
torpedo hits needed to sink ship)

Relative steadiness as gun platform, 60 percent
(50 percent is 'average')

Relative rocking effect from firing to beam, 0.05

Relative quality as a seaboat: 2.00

+++++++++++++++++++++++++


Hull form characteristics:

Block coefficient: 0.60
Sharpness coefficient: 0.45
Hull speed coefficient 'M' = 5.39
'Natural speed' for length = 15.2 knots
Power going to wave formation
at top speed: 57 percent


Estimated hull characteristics and strength:

Relative underwater volume absorbed by
magazines and engineering spaces: 67 percent

Relative accommodation and working space: 149 percent


Displacement factor: 179 percent
(Displacement relative to loading factors)


Relative cross-sectional hull strength: 1.12
(Structure weight per square
metre of hull surface: 351 kg)

Relative longitudinal hull strength: 5.93
(for 5.50 m average freeboard;
freeboard adjustment +2.09 m)

Relative composite hull strength: 1.32

+++++++++++++++++++++++++


[Machine-readable parameters: Spring Style v. 1.2.1]

229.60 x 42.64 x 13.12; 18.04 -- Dimensions
0.60 -- Block coefficient
1928 -- Year laid down
16.68 / 8000 / 12.00; Oil-fired turbine or equivalent -- Speed / radius / cruise
900 tons -- Miscellaneous weights
++++++++++
2 x 4.13; 0 -- Main battery; turrets
Central positioning of guns
Gun-shields
:
4 x 1.38; 0 -- Secondary battery; turrets
Gun-shields
:
4 x 0.59 -- Tertiary (QF/AA) battery
Gun-shields
:
0 -- No fourth (light) battery
0 -- No torpedo armament
++++++++++
0.00 -- No belt armor
0.00 / 0.00 -- Deck / CT
1.18 / 0.79 / 0.79 / 0.00 -- Battery armor


(Note: For portability, values are stored in Anglo-American units)


+++++++++++++++++++++++++++++++++++++++++++++++++++++++

Looks good. *scurries off to alter armament to create Filipino version for Q2* :-)

So, when do we get Vadodara's stats?

Arrgh, its sick. Puke ugly is the best term I think.

Well it does seem like a cross between a warship and a tender in shape, but I don't know it that makes it ugly.

I don't expect her to win any beauty prizes, but I think "Puke ugly" is a wee bit harsh.

Is her armament reasonable or too heavy? I'm contemplating deleting the aft 10.5 cm gun in later versions and extending the superstructure aft to give more working space.

When will you see Vadodara? On a slow day. I decided that posting all my ship designs on the first day of a year doesn't leave me much to show y'all through the rest of the year.

Quoted

Arrgh, its sick. Puke ugly is the best term I think.

Sorry, J... but I have to agree with him when it comes to how ugly the ship looks (function over beauty I assume). You're not afraid that the crew will die from embarrasment?
XD
Still, ugliness does seem to be the rage these days...
:-)

Don´t forget we´re talking warships here. Should be right to use "form follows function" for such a vessel.

Good work, J. Keep it coming....

Quoted

Originally posted by Red Admiral
Arrgh, its sick. Puke ugly is the best term I think.

Good lord, thats rather a blunt way of putting it......

Personally I don't think she's any uglier than the historical British tenders, allthough I must admit she seems a bit short and stout.

Quoted

You're not afraid that the crew will die from embarrasment?

We're talking about trained profressionals here. That training includes a few days of looking at slides of all the world's ugliest warships.

Quoted

allthough I must admit she seems a bit short and stout.

It's only as big as it needs to be to do its job, but the high freeboard and large superstructure are deemed necessary to hold all the extra quarters, working spaces, and so forth. The freeboard is still lower than what the springstyle notes recommend for a passenger ship with that beam.

I'll look forward to seeing the more attractive tender designs other navies put into service...

Hee hee good luck!!

Quoted

I'll look forward to seeing the more attractive tender designs other navies put into service...

Yes. White ones with pretty pink flowers. A good way to camouflage the ugliness of my tenders.
XD

Clearly Italian tenders will have bodies by Pininfarina.

(...and mechanicals by Fiat. :-P )

Quoted

396 t = accommodation for 198 "tendee" crew (at 2 t per)
168 t = fuel for "tendees" (6 full loads for launches)
78 t = ammunition and stores for tendees (6 full loads for launches)
25 t = flag facilities
25 t = medical facilities
100 t = workshops
108 t = repair materials

Have you allowed for curry making facilities?

I'd have thought a converted merchant ship would be a better use of 2000tons but thats just me.

Cheers,

Quoted

25 t = flag facilities

I think the curry supply would be in with that.

Quoted

I'd have thought a converted merchant ship would be a better use of 2000tons but thats just me.

It would be more efficient for a one-off conversion, but I can't really see how I'd find a half dozen of the things lying around.

In real life, it seems a lot of tenders were just whatever merchant ships the government could lay its hands on - but simming and drawing six different merchant ships doing the same job seems like a pain in the arse.

Quoted

Originally posted by Swamphen
(...and mechanicals by Fiat. :-P )

FIAT - Fábrica Italiana Atrapalhando o Trânsito(Italian Factory Hindering Traffic, in Portuguese)

FIAT isn't overly popular. "In FIAT, power is measured in donkey-power." They don't have quite the monopoly over the Italian military that existed in our history.