WesWorld

Any ideas to build a better product? Feel free to dissect. Any ideas any welcomed.

C-1 , Peru Submarine Chaser laid down 1934

Displacement:
289 t light; 299 t standard; 330 t normal; 355 t full load

Dimensions: Length overall / water x beam x draught
210.00 ft / 210.00 ft x 20.00 ft x 5.00 ft (normal load)
64.01 m / 64.01 m x 6.10 m x 1.52 m

Armament:
2 - 3.46" / 88.0 mm guns in single mounts, 20.79lbs / 9.43kg shells, 1934 Model
Quick firing guns in deck mounts with hoists
on centreline ends, evenly spread
2 - 1.46" / 37.0 mm guns in single mounts, 1.55lbs / 0.70kg shells, 1934 Model
Anti-aircraft guns in deck mounts
on side, evenly spread
2 - 0.79" / 20.0 mm guns in single mounts, 0.24lbs / 0.11kg shells, 1934 Model
Anti-aircraft guns in deck mounts
on side, evenly spread, all raised mounts
Weight of broadside 45 lbs / 20 kg
Shells per gun, main battery: 150

Armour:
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 1.18" / 30 mm 0.59" / 15 mm 0.79" / 20 mm
2nd: 0.79" / 20 mm - -

Machinery:
Diesel Internal combustion motors,
Geared drive, 1 shaft, 2,418 shp / 1,804 Kw = 20.00 kts
Range 3,000nm at 12.00 kts
Bunker at max displacement = 55 tons

Complement:
38 - 50

Cost:
£0.121 million / $0.483 million

Distribution of weights at normal displacement:
Armament: 6 tons, 1.7 %
Armour: 4 tons, 1.4 %
- Belts: 0 tons, 0.0 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 4 tons, 1.4 %
- Armour Deck: 0 tons, 0.0 %
- Conning Tower: 0 tons, 0.0 %
Machinery: 70 tons, 21.1 %
Hull, fittings & equipment: 194 tons, 58.8 %
Fuel, ammunition & stores: 41 tons, 12.5 %
Miscellaneous weights: 15 tons, 4.5 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
569 lbs / 258 Kg = 27.4 x 3.5 " / 88 mm shells or 0.5 torpedoes
Stability (Unstable if below 1.00): 1.09
Metacentric height 0.5 ft / 0.2 m
Roll period: 11.5 seconds
Steadiness - As gun platform (Average = 50 %): 56 %
- Recoil effect (Restricted arc if above 1.00): 0.36
Seaboat quality (Average = 1.00): 1.12

Hull form characteristics:
Hull has a flush deck
Block coefficient: 0.550
Length to Beam Ratio: 10.50 : 1
'Natural speed' for length: 14.49 kts
Power going to wave formation at top speed: 56 %
Trim (Max stability = 0, Max steadiness = 100): 50
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: 11.50 ft / 3.51 m
- Forecastle (20 %): 9.00 ft / 2.74 m
- Mid (60 %): 7.00 ft / 2.13 m
- Quarterdeck (15 %): 7.00 ft / 2.13 m
- Stern: 8.00 ft / 2.44 m
- Average freeboard: 8.08 ft / 2.46 m
Ship tends to be wet forward

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 87.2 %
- Above water (accommodation/working, high = better): 108.5 %
Waterplane Area: 2,843 Square feet or 264 Square metres
Displacement factor (Displacement / loading): 162 %
Structure weight / hull surface area: 39 lbs/sq ft or 192 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 1.18
- Longitudinal: 2.36
- Overall: 1.26
Hull space for machinery, storage, compartmentation is adequate
Room for accommodation and workspaces is adequate

Depth charges- 30

Actually, looks pretty good from here. A little more speed would be no bad thing, but it's not at all bad as it is.

Looks excellent to me.

Aside from rounding off the HP to 2500, she's all right mate.

Too many guns on a hull too small. Think of the gun crews you need to put somewhere. Deck space will also be rare with all that stuff - and deckspace you need as a minesweeper.

I also think 150 shells is not enough for a 88mm gun. You´ll run out of ammo within 10 to 15 minutes of gun fight. On the other hand your ship won´t survive any beating anyway. Still....

Quoted

Originally posted by HoOmAn
Too many guns on a hull too small. Think of the gun crews you need to put somewhere. Deck space will also be rare with all that stuff - and deckspace you need as a minesweeper.

I also think 150 shells is not enough for a 88mm gun. You´ll run out of ammo within 10 to 15 minutes of gun fight. On the other hand your ship won´t survive any beating anyway. Still....

Eliminate the 37mm and increase the ammo perhaps? Still their job will be to escort civilian traffic and protect them from subs. But I agree they will not survive any serious surface threat.

I´d skip her second 88mm gun and keep the rest while increasing ammo capacity.

Quoted

Originally posted by HoOmAn
I´d skip her second 88mm gun and keep the rest while increasing ammo capacity.

Should it be possible them to increase the number of depth charges? With less tonnage of that gun I can increase the number of depth charges on board plus put the launchers in the aft position.

Here is the chaser with the changes you proposed. Tripled the ammo

S-1 , Peru Submarine Chaser laid down 1934

Displacement:
285 t light; 299 t standard; 330 t normal; 355 t full load

Dimensions: Length overall / water x beam x draught
210.00 ft / 210.00 ft x 20.00 ft x 5.00 ft (normal load)
64.01 m / 64.01 m x 6.10 m x 1.52 m

Armament:
1 - 3.46" / 88.0 mm guns in single mounts, 20.79lbs / 9.43kg shells, 1934 Model
Quick firing gun in a deck mount with hoist
on centreline forward
2 - 1.46" / 37.0 mm guns in single mounts, 1.55lbs / 0.70kg shells, 1934 Model
Anti-aircraft guns in deck mounts
on centreline, all aft, 1 raised mount
2 - 0.79" / 20.0 mm guns in single mounts, 0.24lbs / 0.11kg shells, 1934 Model
Anti-aircraft guns in deck mounts
on side, evenly spread, all raised mounts
Weight of broadside 24 lbs / 11 kg
Shells per gun, main battery: 500

Armour:
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 1.18" / 30 mm 0.59" / 15 mm 0.79" / 20 mm
2nd: 0.79" / 20 mm - -

Machinery:
Diesel Internal combustion motors,
Geared drive, 1 shaft, 2,418 shp / 1,804 Kw = 20.00 kts
Range 3,000nm at 12.00 kts
Bunker at max displacement = 55 tons

Complement:
38 - 50

Cost:
£0.109 million / $0.437 million

Distribution of weights at normal displacement:
Armament: 3 tons, 0.9 %
Armour: 2 tons, 0.7 %
- Belts: 0 tons, 0.0 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 2 tons, 0.7 %
- Armour Deck: 0 tons, 0.0 %
- Conning Tower: 0 tons, 0.0 %
Machinery: 70 tons, 21.1 %
Hull, fittings & equipment: 180 tons, 54.5 %
Fuel, ammunition & stores: 45 tons, 13.6 %
Miscellaneous weights: 30 tons, 9.1 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
567 lbs / 257 Kg = 27.3 x 3.5 " / 88 mm shells or 0.5 torpedoes
Stability (Unstable if below 1.00): 1.10
Metacentric height 0.5 ft / 0.2 m
Roll period: 11.5 seconds
Steadiness - As gun platform (Average = 50 %): 57 %
- Recoil effect (Restricted arc if above 1.00): 0.19
Seaboat quality (Average = 1.00): 1.15

Hull form characteristics:
Hull has a flush deck
Block coefficient: 0.550
Length to Beam Ratio: 10.50 : 1
'Natural speed' for length: 14.49 kts
Power going to wave formation at top speed: 56 %
Trim (Max stability = 0, Max steadiness = 100): 50
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: 11.50 ft / 3.51 m
- Forecastle (20 %): 9.00 ft / 2.74 m
- Mid (60 %): 7.00 ft / 2.13 m
- Quarterdeck (15 %): 7.00 ft / 2.13 m
- Stern: 8.00 ft / 2.44 m
- Average freeboard: 8.08 ft / 2.46 m
Ship tends to be wet forward

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 87.8 %
- Above water (accommodation/working, high = better): 108.5 %
Waterplane Area: 2,843 Square feet or 264 Square metres
Displacement factor (Displacement / loading): 168 %
Structure weight / hull surface area: 37 lbs/sq ft or 178 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 1.16
- Longitudinal: 2.24
- Overall: 1.24
Hull space for machinery, storage, compartmentation is adequate
Room for accommodation and workspaces is adequate

depth charges-30

Looks fine to me - fairly similar in capability to my own anti-submarine launch, actually.