Shipbucket

Nice little cruiser. One remark concerns the propellers, which are too modern for a ship like this one.

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Thank you Kim for the crest

"Never fear to try on something new. Remember that the Titanic was built by professionals, and the Ark by an amateur"

well, it just so happens I did one for each of the seperate classes as I was drawing them. I find it really helps me when determining displacement, speed, machinery and the like.


Illustrious , Grays Harbor Cruiser laid down 1914

Displacement:
3,016 t light; 3,159 t standard; 3,435 t normal; 3,657 t full load

Dimensions: Length overall / water x beam x draught
450.00 ft / 444.00 ft x 42.00 ft x 16.00 ft (normal load)
137.16 m / 135.33 m x 12.80 m x 4.88 m

Armament:
2 - 6.00" / 152 mm guns in single mounts, 108.00lbs / 48.99kg shells, 1914 Model
Breech loading guns in deck mounts
on centreline ends, evenly spread, all raised mounts
8 - 4.00" / 102 mm guns in single mounts, 32.00lbs / 14.51kg shells, 1914 Model
Breech loading guns in deck mounts
on side, evenly spread
Weight of broadside 472 lbs / 214 kg
Shells per gun, main battery: 250

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 3.00" / 76 mm 255.00 ft / 77.72 m 10.00 ft / 3.05 m
Ends: 1.00" / 25 mm 163.00 ft / 49.68 m 8.00 ft / 2.44 m
26.00 ft / 7.92 m Unarmoured ends
Main Belt covers 88 % of normal length
Main belt does not fully cover magazines and engineering spaces

- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 1.50" / 38 mm - -
2nd: 1.00" / 25 mm - -

- Armour deck: 1.00" / 25 mm, Conning tower: 1.00" / 25 mm

Machinery:
Oil fired boilers, complex reciprocating steam engines,
Geared drive, 2 shafts, 27,209 ihp / 20,298 Kw = 29.00 kts
Range 6,200nm at 10.00 kts
Bunker at max displacement = 498 tons

Complement:
223 - 291

Cost:
£0.467 million / $1.867 million

Distribution of weights at normal displacement:
Armament: 59 tons, 1.7 %
Armour: 623 tons, 18.1 %
- Belts: 369 tons, 10.8 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 28 tons, 0.8 %
- Armour Deck: 221 tons, 6.4 %
- Conning Tower: 5 tons, 0.1 %
Machinery: 1,512 tons, 44.0 %
Hull, fittings & equipment: 822 tons, 23.9 %
Fuel, ammunition & stores: 420 tons, 12.2 %
Miscellaneous weights: 0 tons, 0.0 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
1,264 lbs / 574 Kg = 11.7 x 6.0 " / 152 mm shells or 0.5 torpedoes
Stability (Unstable if below 1.00): 1.56
Metacentric height 2.9 ft / 0.9 m
Roll period: 10.4 seconds
Steadiness - As gun platform (Average = 50 %): 77 %
- Recoil effect (Restricted arc if above 1.00): 0.16
Seaboat quality (Average = 1.00): 1.54

Hull form characteristics:
Hull has raised forecastle, rise forward of midbreak
and transom stern
Block coefficient: 0.403
Length to Beam Ratio: 10.57 : 1
'Natural speed' for length: 24.25 kts
Power going to wave formation at top speed: 53 %
Trim (Max stability = 0, Max steadiness = 100): 50
Bow angle (Positive = bow angles forward): 11.50 degrees
Stern overhang: -2.00 ft / -0.61 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 29.50 ft / 8.99 m
- Forecastle (19 %): 22.00 ft / 6.71 m (21.00 ft / 6.40 m aft of break)
- Mid (34 %): 20.00 ft / 6.10 m (12.00 ft / 3.66 m aft of break)
- Quarterdeck (16 %): 11.50 ft / 3.51 m
- Stern: 12.00 ft / 3.66 m
- Average freeboard: 15.58 ft / 4.75 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 156.5 %
- Above water (accommodation/working, high = better): 140.4 %
Waterplane Area: 11,934 Square feet or 1,109 Square metres
Displacement factor (Displacement / loading): 79 %
Structure weight / hull surface area: 39 lbs/sq ft or 192 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.57
- Longitudinal: 1.09
- Overall: 0.61
Hull space for machinery, storage, compartmentation is cramped
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

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"Anybody remotely interesting is mad in some way." - The Seventh Doctor

Hnh. The heck you say. Phooey. I must admit that I am guilty of just grabbing an appropriately sized prop off the parts sheet in this case. Not so good at drawing them myself just as yet. I'll have to go take a look at some drawing of contemporaries of this class in the Real section and see what I ought have instead.

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"Anybody remotely interesting is mad in some way." - The Seventh Doctor

For comparable ships look in the United Kingdom of Real life. The C class cruisers were of similar size, length wise, and you can grab one of their propellers.

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Thank you Kim for the crest

"Never fear to try on something new. Remember that the Titanic was built by professionals, and the Ark by an amateur"

Yup, I did just that already earlier this afternoon shortly after you pointed the props out to me, so this must be a case of "great minds think alike" eh?

I kinda based the idea for this class on the C's, but damn, I didn't realize just how close to them I had gotten until I compared the drawing of the Caroline to my own Illustrious.

A question now. I used a central crane for the boats, but on the C's I saw where they use individual boat davits. Any opinion on which way I should go with this? Keep the crane and stacked boats, or replace that with davited smaller boats? I rather like the way the boat crane looks, but I'm willing to listen to another perspective on it.

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"Anybody remotely interesting is mad in some way." - The Seventh Doctor

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"Anybody remotely interesting is mad in some way." - The Seventh Doctor

Just fiddling around, and thought about this for the 1931-32 rebuild/re-arm of the Bonaventure. I decided to try for an "experimental" armament mix, inspired by the Kitakame and Oi. Only the Bonaventure was re-armed this way. Her sister ship, the Avenger, was rearmed identical to how the Tempest Class was rebuilt, as A/A cruisers in 1934-35.


Armament:
3 x 4.7" (3 x 1)
14 x 40mm/2 Pdr (2 x 4; 3 x 2)
40 x 21" Torpedo (10 x 4)

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"Anybody remotely interesting is mad in some way." - The Seventh Doctor

If only Bonadventure had been at Java Sea...

Looks like a nice design, but that is seriously a heck load of TTs

Should have renamed her HMS Battleships bane.