Shipbucket

I'll give the SS sheet a tweak when I return tomorrow evening and re-up it in the same post for convenience's sake.

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AU Projects: | Banbha et al. | New England: The Divided States
Blood and Fire

Any thoughts? The large amount of 40mm guns is because the main guns are surface only.

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“Close” only counts with horseshoes, hand grenades, and tactical nuclear weapons.
That which does not kill me has made a grave tactical error

Worklist

Source Materiel is always welcome.

I like the addition of the mines... I also think that the number of 40mm is not too 'large.'
Interested to see where this one goes- she'll certainly wind up looking more 'British' than mine.

Ok... her she is in semi-finished form.
I'm not exactly sure what kind of radar, electronics, cables, etc I might need to add to the ship, so her mast is blank ATM. Advice on that kind of thing would be very welcome indeed! Like I said above, I hope the directors are correct. Also, I'm still looking for exactly what kind of gun shields might have been used on these 4,72" mounts... I'll add them as soon as I find them.
All in all, I'm happy with her- she is a different direction from the typical British design, but I think she still somewhat 'looks the part' and she's definitely taught me a few tricks as I worked on her.

I'm actually aiming at Danish, but the lack of anything even remotely like it in the inter-war navy gives me pretty loose reins style-wise, though I'm stealing plenty of elements from the Huitfeldt and Dragen class torpedo boats. (Both of which are also on the slipway.)
Firecontrol is probably going to be either Dutch or Swedish.

_________________
“Close” only counts with horseshoes, hand grenades, and tactical nuclear weapons.
That which does not kill me has made a grave tactical error

Worklist

Source Materiel is always welcome.

You're going to need wire antennae and probably large ones since these boats are likely to end up operating a long way from home, so you'll need a second mast. You're not going to see radar on ships like this until well into the war, so electronics fit probably won't consist of more than a simple huff-duff.

_________________
“Close” only counts with horseshoes, hand grenades, and tactical nuclear weapons.
That which does not kill me has made a grave tactical error

Worklist

Source Materiel is always welcome.

Added the aerials to the design.
Not sure what set I need for the DFing... anyone able to give me a number/name?

I couldn't resist taking part in this little exercise - it is always interesting to see the many different ships emerge
Anyway, here is my attempt:



The country is an AU of mine...
I'm fairly inexperienced when it comes to Springsharp so if I've made any errors feel free to let me know


Twilight Class, Recherche Sloop laid down 1936

Displacement:
882 t light; 946 t standard; 1,386 t normal; 1,737 t full load

Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
(298.56 ft / 295.20 ft) x 31.79 ft x (10.33 / 12.30 ft)
(91.00 m / 89.98 m) x 9.69 m x (3.15 / 3.75 m)

Armament:
6 - 4.00" / 102 mm 45.0 cal guns - 35.01lbs / 15.88kg shells, 300 per gun
Dual purpose guns in deck and hoist mounts, 1936 Model
3 x Twin mounts on centreline ends, majority forward
1 raised mount - superfiring
6 - 0.79" / 20.0 mm 70.0 cal guns - 0.27lbs / 0.12kg shells, 1,000 per gun
Anti-air guns in deck mounts, 1936 Model
2 x Twin mounts on sides, forward deck aft
2 raised mounts
1 x Twin mount on centreline, aft deck centre
1 raised mount
4 - 0.50" / 12.7 mm 90.0 cal guns - 0.07lbs / 0.03kg shells, 2,500 per gun
Machine guns in deck mounts, 1936 Model
4 x Single mounts on centreline, aft evenly spread
4 raised mounts
Weight of broadside 212 lbs / 96 kg
Main DC/AS Mortars
2 - 300.00 lbs / 136.08 kg Depth Charges + 52 reloads - 7.232 t total
in Stern depth charge racks

Armour:
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 1.00" / 25 mm - -

- Armoured deck - multiple decks:
For and Aft decks: 0.50" / 13 mm
Forecastle: 0.25" / 6 mm Quarter deck: 0.25" / 6 mm

- Conning towers: Forward 1.00" / 25 mm, Aft 1.00" / 25 mm

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 2 shafts, 5,059 shp / 3,774 Kw = 20.00 kts
Range 16,700nm at 13.00 kts
Bunker at max displacement = 791 tons

Complement:
113 - 147

Cost:
£0.369 million / $1.476 million

Distribution of weights at normal displacement:
Armament: 56 tons, 4.0 %
- Guns: 47 tons, 3.4 %
- Weapons: 9 tons, 0.7 %
Armour: 65 tons, 4.7 %
- Armament: 7 tons, 0.5 %
- Armour Deck: 53 tons, 3.8 %
- Conning Towers: 5 tons, 0.4 %
Machinery: 142 tons, 10.2 %
Hull, fittings & equipment: 599 tons, 43.3 %
Fuel, ammunition & stores: 504 tons, 36.4 %
Miscellaneous weights: 20 tons, 1.4 %
- On freeboard deck: 10 tons
- Above deck: 10 tons

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
4,380 lbs / 1,987 Kg = 136.9 x 4.0 " / 102 mm shells or 1.7 torpedoes
Stability (Unstable if below 1.00): 1.20
Metacentric height 1.2 ft / 0.4 m
Roll period: 12.0 seconds
Steadiness - As gun platform (Average = 50 %): 80 %
- Recoil effect (Restricted arc if above 1.00): 0.64
Seaboat quality (Average = 1.00): 2.00

Hull form characteristics:
Hull has rise forward of midbreak,
a normal bow and a cruiser stern
Block coefficient (normal/deep): 0.500 / 0.527
Length to Beam Ratio: 9.29 : 1
'Natural speed' for length: 17.18 kts
Power going to wave formation at top speed: 49 %
Trim (Max stability = 0, Max steadiness = 100): 40
Bow angle (Positive = bow angles forward): 10.00 degrees
Stern overhang: -0.66 ft / -0.20 m
Freeboard (% = length of deck as a percentage of waterline length):
Fore end, Aft end
- Forecastle: 20.00 %, 19.03 ft / 5.80 m, 18.04 ft / 5.50 m
- Forward deck: 42.00 %, 18.04 ft / 5.50 m, 16.40 ft / 5.00 m
- Aft deck: 23.00 %, 8.20 ft / 2.50 m, 8.86 ft / 2.70 m
- Quarter deck: 15.00 %, 8.86 ft / 2.70 m, 9.51 ft / 2.90 m
- Average freeboard: 14.26 ft / 4.35 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 48.9 %
- Above water (accommodation/working, high = better): 149.1 %
Waterplane Area: 6,253 Square feet or 581 Square metres
Displacement factor (Displacement / loading): 251 %
Structure weight / hull surface area: 51 lbs/sq ft or 248 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.87
- Longitudinal: 3.72
- Overall: 1.00
Excellent machinery, storage, compartmentation space
Excellent accommodation and workspace room
Ship has slow, easy roll, a good, steady gun platform
Excellent seaboat, comfortable, can fire her guns in the heaviest weather

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Very solid design- Springsharp seems to be dead-on... to the point that I don't feel like it needs a pixel-by-pixel check on the measurements. The low-velocity 4" mount there is very available and a good light gun. THe range is massive, but I'm assuming that the AU nation is an island that has a lot of area to patrol. The AA fit makes sense, and is very in line with historic.

The only issue is that no ship in the contest was supposed to break the 'unclassified gunboat' section of the Washington Naval Treaty'- and to be complaint, you can't have more than four guns of >3" and no guns of >6.1" mounted. There is no limit on the number of <3" guns that the ship can mount, though.

Thiel, you are using like many others still the crappy old oudated 40mm drawing.