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Post by oldpop2000 on Mar 12, 2016 14:02:34 GMT -6
I am starting this thread to offer some Springsharp Designs for anyone to peruse. Unfortunately, Springsharp does not design anything before 1920 and does not go beyond 1956 timeframe. No matter It is still fun.
My First design is an Italian Scout Cruiser Quarto. It was an actual ship designed in 1913.
I will limit my designs to battleships, battlecruisers, protected, light and scout cruisers, and destroyers with a few torpedo boats thrown in. Springsharp does not do well in destroyers, but no matter.
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Post by oldpop2000 on Mar 12, 2016 16:44:53 GMT -6
Here is my second scout cruiser - Austro-Hungarian Saida - She did exist.
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Post by oldpop2000 on Mar 13, 2016 8:25:08 GMT -6
Here is something unique, it is a Torpedo Battleship from May 31, 1911 developed for the US Naval Bureau of Construction and Repair. I've developed a design for it.
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Post by oldpop2000 on Mar 13, 2016 13:56:10 GMT -6
I've produced a smaller, faster version of the Torpedo Battleship. she can reach 31 knots and cruise at 15 knots with range of 10,000 miles.
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Post by oldpop2000 on Mar 13, 2016 18:18:37 GMT -6
Here is my attempt at a battleship cruiser, a design proposal on 18 May 1918. As you can see, she would never have made it past the Washington Naval Treaty of 1922. I was amazed that my design using their specifications on the drawing were exact. The ship was a 30 knot, 56,315 ton battleship cruiser.
I am focusing on US Navy ships because I have actual drawing proposals, but will return to foreign ships later.
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Post by oldpop2000 on Mar 25, 2016 9:30:15 GMT -6
Here is my first tumblehome designed pre-dreadnought - HMS Victorius
Victorius, Great Britain Battleship laid down 1900
Displacement:
8,061 t light; 8,429 t standard; 9,476 t normal; 10,314 t full load
Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
(410.00 ft / 400.00 ft) x 70.00 ft x (23.00 / 24.55 ft)
(124.97 m / 121.92 m) x 21.34 m x (7.01 / 7.48 m)
Armament:
4 - 9.00" / 229 mm 45.0 cal guns - 367.61lbs / 166.74kg shells, 150 per gun
Breech loading guns in turret on barbette mounts, 1900 Model
4 x Single mounts on sides, evenly spread
4 - 4.00" / 102 mm 45.0 cal guns - 32.27lbs / 14.64kg shells, 150 per gun
Breech loading guns in turret on barbette mounts, 1900 Model
2 x 2 row twin mounts on centreline, evenly spread
5 - 6.00" / 152 mm 45.0 cal guns - 108.92lbs / 49.41kg shells, 150 per gun
Breech loading guns in casemate mounts, 1900 Model
5 x Single mounts on sides, evenly spread
Weight of broadside 2,144 lbs / 973 kg
Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 4.00" / 102 mm 280.00 ft / 85.34 m 10.04 ft / 3.06 m
Ends: 1.00" / 25 mm 119.98 ft / 36.57 m 10.04 ft / 3.06 m
Upper: 4.00" / 102 mm 280.00 ft / 85.34 m 8.00 ft / 2.44 m
Main Belt covers 108 % of normal length
Main belt does not fully cover magazines and engineering spaces
Main Belt inclined 2.00 degrees (positive = in)
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 2.00" / 51 mm 1.00" / 25 mm 1.00" / 25 mm
2nd: 2.00" / 51 mm 2.00" / 51 mm 2.00" / 51 mm
3rd: 1.00" / 25 mm 1.00" / 25 mm 12.0" / 305 mm
- Armoured deck - multiple decks:
For and Aft decks: 1.00" / 25 mm
Forecastle: 1.00" / 25 mm Quarter deck: 1.00" / 25 mm
- Conning towers: Forward 6.00" / 152 mm, Aft 3.00" / 76 mm
Machinery:
Coal fired boilers, complex reciprocating steam engines,
Direct drive, 2 shafts, 22,951 ihp / 17,122 Kw = 22.00 kts
Range 8,000nm at 10.00 kts
Bunker at max displacement = 1,885 tons (100% coal)
Complement:
479 - 624
Cost:
£0.960 million / $3.840 million
Distribution of weights at normal displacement:
Armament: 529 tons, 5.6 %
- Guns: 529 tons, 5.6 %
Armour: 1,512 tons, 16.0 %
- Belts: 919 tons, 9.7 %
- Armament: 153 tons, 1.6 %
- Armour Deck: 353 tons, 3.7 %
- Conning Towers: 87 tons, 0.9 %
Machinery: 3,586 tons, 37.8 %
Hull, fittings & equipment: 2,434 tons, 25.7 %
Fuel, ammunition & stores: 1,415 tons, 14.9 %
Miscellaneous weights: 0 tons, 0.0 %
Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
5,649 lbs / 2,562 Kg = 15.5 x 9.0 " / 229 mm shells or 1.0 torpedoes
Stability (Unstable if below 1.00): 1.60
Metacentric height 6.5 ft / 2.0 m
Roll period: 11.6 seconds
Steadiness - As gun platform (Average = 50 %): 74 %
- Recoil effect (Restricted arc if above 1.00): 0.19
Seaboat quality (Average = 1.00): 1.33
Hull form characteristics:
Hull has a flush deck,
a ram bow and a cruiser stern
Block coefficient (normal/deep): 0.515 / 0.525
Length to Beam Ratio: 5.71 : 1
'Natural speed' for length: 20.00 kts
Power going to wave formation at top speed: 55 %
Trim (Max stability = 0, Max steadiness = 100): 56
Bow angle (Positive = bow angles forward): 0.00 degrees
Stern overhang: -10.00 ft / -3.05 m
Freeboard (% = length of deck as a percentage of waterline length):
Fore end, Aft end
- Forecastle: 15.00 %, 22.00 ft / 6.71 m, 18.00 ft / 5.49 m
- Forward deck: 30.00 %, 18.00 ft / 5.49 m, 14.00 ft / 4.27 m
- Aft deck: 40.00 %, 14.00 ft / 4.27 m, 14.00 ft / 4.27 m
- Quarter deck: 15.00 %, 14.00 ft / 4.27 m, 14.00 ft / 4.27 m
- Average freeboard: 15.44 ft / 4.71 m
Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 140.0 %
- Above water (accommodation/working, high = better): 111.7 %
Waterplane Area: 18,914 Square feet or 1,757 Square metres
Displacement factor (Displacement / loading): 91 %
Structure weight / hull surface area: 101 lbs/sq ft or 491 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.92
- Longitudinal: 2.05
- Overall: 1.00
Cramped machinery, storage, compartmentation space
Adequate accommodation and workspace room
Ship has slow, easy roll, a good, steady gun platform
Good seaboat, rides out heavy weather easily
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Post by vonfriedman on Jan 26, 2017 5:51:58 GMT -6
I am starting this thread to offer some Springsharp Designs for anyone to peruse. Unfortunately, Springsharp does not design anything before 1920 and does not go beyond 1956 timeframe. No matter It is still fun. My First design is an Italian Scout Cruiser Quarto. It was an actual ship designed in 1913. In his book "Pelle di Ammiraglio" Alberto Da Zara writes about the Quarto, that he commanded in 1926: "Quarto was one of the best and most successful ships of the Regia Marina and made in 24 years of operation excellent services in peace and war. Designed by ing. Giulio Truccone and built in the arsenal of Venice, she had beautiful hull shapes that allowed her to sail at full speed without lifting too much spray at the bows; this induced always all in serious errors in estimating her speed and had often saved her from the torpedoes of the German and Austrian submarines" |
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Post by oldpop2000 on Jan 26, 2017 8:17:03 GMT -6
I am starting this thread to offer some Springsharp Designs for anyone to peruse. Unfortunately, Springsharp does not design anything before 1920 and does not go beyond 1956 timeframe. No matter It is still fun. My First design is an Italian Scout Cruiser Quarto. It was an actual ship designed in 1913. In his book "Pelle di Ammiraglio" Alberto Da Zara writes about the Quarto, that he commanded in 1926: "Quarto was one of the best and most successful ships of the Regia Marina and made in 24 years of operation excellent services in peace and war. Designed by ing. Giulio Truccone and built in the arsenal of Venice, she had beautiful hull shapes that allowed her to sail at full speed without lifting too much spray at the bows; this induced always all in serious errors in estimating her speed and had often saved her from the torpedoes of the German and Austrian submarines" Interesting information, thanks for sharing. |
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Post by oldpop2000 on Apr 13, 2017 21:33:01 GMT -6
Well, I decided to design an aircraft carrier dated around 1939 using Springsharp 3B and my Springsharp notes document which has suggestions for designing an aircraft carrier with aircraft. Here is my report. Sorry but I am not an artist or draftsman, so you get the report. This is a revised design, I forgot to increase freeboard to at least 50 feet for a carrier.
As one can see it will carry about 94 aircraft with a maximum of 111. I have manage to make it a very stable boat, with a slow easy roll with good accomodations and workspace. This is consistent with aircraft carrier requirements. The document states that this type of design will work for US Navy and Japanese naval carriers but will need to be modified for British. I might do this next. As to engine power, the real Saratoga designed in the early '20's had electric propulsion but had about 150,000 horsepower but did overpower to 180000, so my calculations are close.
USS Saratoga, USA Aircraft Carrier laid down 1939
Displacement:
41,675 t light; 42,663 t standard; 48,277 t normal; 52,767 t full load
Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
(891.75 ft / 850.00 ft) x 98.80 ft x (40.00 / 42.69 ft)
(271.81 m / 259.08 m) x 30.11 m x (12.19 / 13.01 m)
Armament:
94 Aircraft/ 111 Max Aircraft
4 - 5.00" / 127 mm 50.0 cal guns - 66.16lbs / 30.01kg shells, 150 per gun
Breech loading guns in turret on barbette mounts, 1939 Model
4 x Single mounts on centreline, forward evenly spread
Weight of broadside 265 lbs / 120 kg
Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 4.00" / 102 mm 637.50 ft / 194.31 m 11.93 ft / 3.64 m
Ends: 1.00" / 25 mm 212.48 ft / 64.76 m 11.93 ft / 3.64 m
Main Belt covers 115 % of normal length
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 0.50" / 13 mm - 1.00" / 25 mm
Machinery:
Oil fired boilers, steam turbines,
Electric motors, 4 shafts, 141,272 shp / 105,389 Kw = 30.30 kts
Range 12,000nm at 18.00 kts
Bunker at max displacement = 10,104 tons
Complement:
1,627 - 2,116
Cost:
£11.763 million / $47.052 million
Distribution of weights at normal displacement:
Armament: 85 tons, 0.2 %
- Guns: 85 tons, 0.2 %
Armour: 1,394 tons, 2.9 %
- Belts: 1,334 tons, 2.8 %
- Armament: 60 tons, 0.1 %
Machinery: 3,822 tons, 7.9 %
Hull, fittings & equipment: 27,374 tons, 56.7 %
Fuel, ammunition & stores: 6,601 tons, 13.7 %
Miscellaneous weights: 9,000 tons, 18.6 %
- Hull above water: 9,000 tons
Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
88,611 lbs / 40,193 Kg = 1,417.8 x 5.0 " / 127 mm shells or 4.3 torpedoes
Stability (Unstable if below 1.00): 0.88
Metacentric height 3.7 ft / 1.1 m
Roll period: 21.4 seconds
Steadiness - As gun platform (Average = 50 %): 100 %
- Recoil effect (Restricted arc if above 1.00): 0.04
Seaboat quality (Average = 1.00): 2.00
Hull form characteristics:
Hull has a flush deck,
a normal bow and large transom stern
Block coefficient (normal/deep): 0.503 / 0.515
Length to Beam Ratio: 8.60 : 1
'Natural speed' for length: 33.66 kts
Power going to wave formation at top speed: 47 %
Trim (Max stability = 0, Max steadiness = 100): 51
Bow angle (Positive = bow angles forward): 30.00 degrees
Stern overhang: 10.00 ft / 3.05 m
Freeboard (% = length of deck as a percentage of waterline length):
Fore end, Aft end
- Forecastle: 20.00 %, 55.00 ft / 16.76 m, 55.00 ft / 16.76 m
- Forward deck: 30.00 %, 55.00 ft / 16.76 m, 55.00 ft / 16.76 m
- Aft deck: 15.00 %, 55.00 ft / 16.76 m, 55.00 ft / 16.76 m
- Quarter deck: 35.00 %, 55.00 ft / 16.76 m, 55.00 ft / 16.76 m
- Average freeboard: 55.00 ft / 16.76 m
Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 47.7 %
- Above water (accommodation/working, high = better): 375.7 %
Waterplane Area: 58,351 Square feet or 5,421 Square metres
Displacement factor (Displacement / loading): 264 %
Structure weight / hull surface area: 195 lbs/sq ft or 954 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 1.17
- Longitudinal: 11.53
- Overall: 1.47
Caution: Poor stability - excessive risk of capsizing
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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Post by oldpop2000 on Apr 16, 2017 9:11:51 GMT -6
Here is my first attempt at using a standard hull for a carrier. In this design, I used the USS Omaha class light cruiser. Based on the miscellaneous above water tonnage of 4000 tons, she can carry 40 aircraft. However, I have highlighted a problem area in stability. She is unstable and I believe it has to do with beam. I am of the opinion that you cannot use destroyer or light cruiser hulls because of the lack of adequate beam. Merchant hulls will work because they are wider with lower length to beam, but the best hulls are heavy cruisers, battle cruisers, and battleships. Also, the crew size is not adequate. You would need to add more men for maintenance, deck groups etc. I may have to research this point.
USS Amarillo, USA Light Carrier laid down 1939
Displacement:
12,920 t light; 13,264 t standard; 15,882 t normal; 17,976 t full load
Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
(571.22 ft / 555.50 ft) x 55.50 ft x (30.00 / 33.25 ft)
(174.11 m / 169.32 m) x 16.92 m x (9.14 / 10.13 m)
Armament:
Aircraft 40 Typical
5 - 5.00" / 127 mm 45.0 cal guns - 63.03lbs / 28.59kg shells, 150 per gun
Breech loading guns in turret on barbette mounts, 1939 Model
5 x Single mounts on sides, evenly spread
10 - 0.79" / 20.0 mm 45.0 cal guns - 0.25lbs / 0.11kg shells, 150 per gun
Breech loading guns in deck and hoist mounts, 1939 Model
10 x Single mounts on sides, evenly spread
Weight of broadside 318 lbs / 144 kg
Armour:
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 0.40" / 10 mm - 1.00" / 25 mm
- Conning towers: Forward 1.00" / 25 mm, Aft 0.00" / 0 mm
Machinery:
Oil fired boilers, steam turbines,
Geared drive, 4 shafts, 92,950 shp / 69,341 Kw = 30.00 kts
Range 11,000nm at 18.00 kts
Bunker at max displacement = 4,712 tons
Complement:
706 - 919
Cost:
£4.858 million / $19.431 million
Distribution of weights at normal displacement:
Armament: 92 tons, 0.6 %
- Guns: 92 tons, 0.6 %
Armour: 69 tons, 0.4 %
- Armament: 55 tons, 0.3 %
- Conning Tower: 14 tons, 0.1 %
Machinery: 2,515 tons, 15.8 %
Hull, fittings & equipment: 6,244 tons, 39.3 %
Fuel, ammunition & stores: 2,962 tons, 18.6 %
Miscellaneous weights: 4,000 tons, 25.2 %
- Hull above water: 4,000 tons
Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
7,773 lbs / 3,526 Kg = 124.4 x 5.0 " / 127 mm shells or 0.5 torpedoes
Stability (Unstable if below 1.00): 0.74
Metacentric height 1.0 ft / 0.3 m
Roll period: 23.3 seconds
Steadiness - As gun platform (Average = 50 %): 100 %
- Recoil effect (Restricted arc if above 1.00): 0.38
Seaboat quality (Average = 1.00): 2.00
Hull form characteristics:
Hull has a flush deck,
a normal bow and a cruiser stern
Block coefficient (normal/deep): 0.601 / 0.614
Length to Beam Ratio: 10.01 : 1
'Natural speed' for length: 23.57 kts
Power going to wave formation at top speed: 59 %
Trim (Max stability = 0, Max steadiness = 100): 62
Bow angle (Positive = bow angles forward): 15.00 degrees
Stern overhang: 5.00 ft / 1.52 m
Freeboard (% = length of deck as a percentage of waterline length):
Fore end, Aft end
- Forecastle: 20.00 %, 40.00 ft / 12.19 m, 40.00 ft / 12.19 m
- Forward deck: 30.00 %, 40.00 ft / 12.19 m, 40.00 ft / 12.19 m
- Aft deck: 35.00 %, 40.00 ft / 12.19 m, 40.00 ft / 12.19 m
- Quarter deck: 15.00 %, 40.00 ft / 12.19 m, 40.00 ft / 12.19 m
- Average freeboard: 40.00 ft / 12.19 m
Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 81.2 %
- Above water (accommodation/working, high = better): 243.6 %
Waterplane Area: 22,570 Square feet or 2,097 Square metres
Displacement factor (Displacement / loading): 169 %
Structure weight / hull surface area: 85 lbs/sq ft or 416 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.76
- Longitudinal: 14.69
- Overall: 1.02
Caution: Poor stability - excessive risk of capsizing
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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Post by oldpop2000 on Apr 18, 2017 7:14:50 GMT -6
Gentlemen:
I hope you will indulge the old guy and examine something I just created using Springsharp 3b3. I decided that the British Bureau of Naval Construction, in about 1929, decided to get innovative and convert one of the Queen Elisabeth Class battleships to a carrier. Sounds hardly likely of the British in the middle of the depression, but you never know. Anyway, here is my conversion of a Queen Elisabeth Class battleship into a carrier. Specifically, the HMS Valiant. She is now geared with a couple of extra knots of speed, air wing of about 51 aircraft, no armored deck and some 40 mm guns along the sides. One problem is how to simulate an armored flight deck and I might add that later. I have solved the stability issue with my carrier designs, it was a simple fix.
HMS Valiant, Great Britain Aircraft Carrier laid down 1932
Displacement:
28,045 t light; 28,651 t standard; 30,189 t normal; 31,419 t full load
Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
(645.75 ft / 645.75 ft) x 90.60 ft x (30.00 / 31.00 ft)
(196.82 m / 196.82 m) x 27.61 m x (9.14 / 9.45 m)
Armament:
Air Wing – 51 Aircraft
5 - 1.57" / 40.0 mm 45.0 cal guns - 1.97lbs / 0.89kg shells, 300 per gun
Anti-air guns in deck mounts, 1932 Model
5 x Single mounts on sides, evenly spread
Weight of broadside 10 lbs / 4 kg
Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 4.00" / 102 mm 419.74 ft / 127.94 m 11.42 ft / 3.48 m
Ends: 1.00" / 25 mm 225.99 ft / 68.88 m 11.42 ft / 3.48 m
Main Belt covers 100 % of normal length
- Torpedo Bulkhead - Additional damage containing bulkheads:
2.00" / 51 mm 419.74 ft / 127.94 m 26.39 ft / 8.04 m
Beam between torpedo bulkheads 70.60 ft / 21.52 m
- Conning towers: Forward 4.00" / 102 mm, Aft 0.00" / 0 mm
Machinery:
Oil fired boilers, steam turbines,
Geared drive, 4 shafts, 76,743 shp / 57,250 Kw = 26.00 kts
Range 6,000nm at 15.00 kts
Bunker at max displacement = 2,768 tons
Complement:
1,144 - 1,488
Cost:
£5.906 million / $23.624 million
Distribution of weights at normal displacement:
Armament: 3 tons, 0.0 %
- Guns: 3 tons, 0.0 %
Armour: 1,824 tons, 6.0 %
- Belts: 921 tons, 3.0 %
- Torpedo bulkhead: 820 tons, 2.7 %
- Conning Tower: 84 tons, 0.3 %
Machinery: 2,265 tons, 7.5 %
Hull, fittings & equipment: 17,954 tons, 59.5 %
Fuel, ammunition & stores: 2,143 tons, 7.1 %
Miscellaneous weights: 6,000 tons, 19.9 %
- Hull above water: 6,000 tons
Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
88,475 lbs / 40,131 Kg = 45,307.5 x 1.6 " / 40 mm shells or 14.7 torpedoes
Stability (Unstable if below 1.00): 1.11
Metacentric height 5.3 ft / 1.6 m
Roll period: 16.5 seconds
Steadiness - As gun platform (Average = 50 %): 70 %
- Recoil effect (Restricted arc if above 1.00): 0.00
Seaboat quality (Average = 1.00): 2.00
Hull form characteristics:
Hull has a flush deck,
a normal bow and a cruiser stern
Block coefficient (normal/deep): 0.602 / 0.606
Length to Beam Ratio: 7.13 : 1
'Natural speed' for length: 25.41 kts
Power going to wave formation at top speed: 51 %
Trim (Max stability = 0, Max steadiness = 100): 35
Bow angle (Positive = bow angles forward): -10.00 degrees
Stern overhang: 0.00 ft / 0.00 m
Freeboard (% = length of deck as a percentage of waterline length):
Fore end, Aft end
- Forecastle: 20.00 %, 40.00 ft / 12.19 m, 40.00 ft / 12.19 m
- Forward deck: 30.00 %, 40.00 ft / 12.19 m, 40.00 ft / 12.19 m
- Aft deck: 35.00 %, 40.00 ft / 12.19 m, 40.00 ft / 12.19 m
- Quarter deck: 15.00 %, 40.00 ft / 12.19 m, 40.00 ft / 12.19 m
- Average freeboard: 40.00 ft / 12.19 m
Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 60.6 %
- Above water (accommodation/working, high = better): 285.5 %
Waterplane Area: 42,870 Square feet or 3,983 Square metres
Displacement factor (Displacement / loading): 244 %
Structure weight / hull surface area: 224 lbs/sq ft or 1,094 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 1.64
- Longitudinal: 8.27
- Overall: 1.93
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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Post by oldpop2000 on Apr 18, 2017 8:28:23 GMT -6
I am going to start working on a flying deck cruiser which was considered by the General Board in the '20's.
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Post by oldpop2000 on Apr 19, 2017 20:28:06 GMT -6
Here is my first flight deck cruiser circa 1940. There is an actual design for such a ship, and I have grabbed some of its dimensions. It will carry 40 scout bombers, SBD-5's, in a two squadron's. SBD-5's can and do always carry 500 lbs. bombs when flying and can carry up to 1000 lbs. bombs and sometimes two 100 lbs. bombs under each wing.
USS Grand Canyon, USA Flight Deck Cruiser laid down 1940
Displacement:
13,231 t light; 13,592 t standard; 15,222 t normal; 16,526 t full load
Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
(671.94 ft / 640.00 ft) x 67.00 ft x (25.00 / 26.54 ft)
(204.81 m / 195.07 m) x 20.42 m x (7.62 / 8.09 m)
Armament:
40 Aircarft – Scout Bombers
6 - 6.00" / 152 mm 50.0 cal guns - 114.33lbs / 51.86kg shells, 150 per gun
Breech loading guns in turret on barbette mounts, 1940 Model
2 x Single mounts on centreline ends, evenly spread
Weight of broadside 686 lbs / 311 kg
Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 4.00" / 102 mm 508.13 ft / 154.88 m 9.82 ft / 2.99 m
Ends: 1.00" / 25 mm 131.85 ft / 40.19 m 9.82 ft / 2.99 m
Main Belt covers 122 % of normal length
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 6.50" / 165 mm - 5.00" / 127 mm
- Box over machinery:
3.00" / 76 mm
Forecastle: 3.00" / 76 mm Quarter deck: 3.00" / 76 mm
Machinery:
Oil fired boilers, steam turbines,
Electric motors, 4 shafts, 72,201 shp / 53,862 Kw = 30.00 kts
Range 10,000nm at 15.00 kts
Bunker at max displacement = 2,934 tons
Complement:
684 - 890
Cost:
£4.832 million / $19.329 million
Distribution of weights at normal displacement:
Armament: 217 tons, 1.4 %
- Guns: 217 tons, 1.4 %
Armour: 1,681 tons, 11.0 %
- Belts: 846 tons, 5.6 %
- Armament: 393 tons, 2.6 %
- Armour Deck: 441 tons, 2.9 %
Machinery: 1,931 tons, 12.7 %
Hull, fittings & equipment: 7,802 tons, 51.3 %
Fuel, ammunition & stores: 1,992 tons, 13.1 %
Miscellaneous weights: 1,600 tons, 10.5 %
- Hull above water: 1,600 tons
Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
40,845 lbs / 18,527 Kg = 378.2 x 6.0 " / 152 mm shells or 3.7 torpedoes
Stability (Unstable if below 1.00): 1.00
Metacentric height 2.7 ft / 0.8 m
Roll period: 17.0 seconds
Steadiness - As gun platform (Average = 50 %): 62 %
- Recoil effect (Restricted arc if above 1.00): 0.24
Seaboat quality (Average = 1.00): 2.00
Hull form characteristics:
Hull has a flush deck,
a normal bow and large transom stern
Block coefficient (normal/deep): 0.497 / 0.508
Length to Beam Ratio: 9.55 : 1
'Natural speed' for length: 28.98 kts
Power going to wave formation at top speed: 52 %
Trim (Max stability = 0, Max steadiness = 100): 31
Bow angle (Positive = bow angles forward): 30.00 degrees
Stern overhang: 10.00 ft / 3.05 m
Freeboard (% = length of deck as a percentage of waterline length):
Fore end, Aft end
- Forecastle: 20.00 %, 38.00 ft / 11.58 m, 38.00 ft / 11.58 m
- Forward deck: 30.00 %, 38.00 ft / 11.58 m, 38.00 ft / 11.58 m
- Aft deck: 30.00 %, 38.00 ft / 11.58 m, 38.00 ft / 11.58 m
- Quarter deck: 20.00 %, 38.00 ft / 11.58 m, 38.00 ft / 11.58 m
- Average freeboard: 38.00 ft / 11.58 m
Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 58.0 %
- Above water (accommodation/working, high = better): 313.5 %
Waterplane Area: 29,628 Square feet or 2,752 Square metres
Displacement factor (Displacement / loading): 194 %
Structure weight / hull surface area: 110 lbs/sq ft or 539 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.90
- Longitudinal: 8.31
- Overall: 1.12
Excellent machinery, storage, compartmentation space
Excellent accommodation and workspace room
Excellent seaboat, comfortable, can fire her guns in the heaviest weather
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Post by oldpop2000 on Jul 7, 2017 19:42:59 GMT -6
Well, I've finally arrived at a good torpedo boat destroyer design circa 1905, The HMS Swift. I really need to review my early 20th. century marine engineering books on how to calculate freeboard, it would help. I also have to spend more time reviewing the information and what it all means especially guns and weaponry.
HMS Swift, England Torpedo Boat Destroyer laid down 1905
Displacement: 2,256 t light; 2,318 t standard; 2,554 t normal; 2,742 t full load
Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
(310.00 ft. / 310.00 ft.) x 34.00 ft. x (20.00 / 21.00 ft.)
(94.49 m / 94.49 m) x 10.36 m x (6.10 / 6.40 m)
Armament:
4 - 4.00" / 102 mm 45.0 Cal guns - 32.27lbs / 14.64kg shells, 150 per gun
Breech loading guns in turret on barbette mounts, 1905 Model
4 x Single mounts on centreline, evenly spread
Weight of broadside 129 lbs / 59 kg
Main Torpedoes
1 - 21.0" / 533 mm, 17.50 ft / 5.33 m torpedo - 1.018 t total
In a deck mounted side rotating tube
2nd Torpedoes
1 - 21.0" / 533 mm, 17.50 ft / 5.33 m torpedo - 1.018 t total
In a deck mounted side rotating tube
Armour:
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 0.50" / 13 mm - 0.50" / 13 mm
Machinery:
Oil fired boilers, steam turbines,
Direct drive, 2 shafts, 27,847 shp / 20,774 Kw = 28.00 kts
Range 3,000nm at 12.00 kts
Bunker at max displacement = 424 tons
Complement:
179 - 233
Cost:
£0.319 million / $1.276 million
Distribution of weights at normal displacement:
Armament: 42 tons, 1.7 %
- Guns: 38 tons, 1.5 %
- Weapons: 4 tons, 0.2 %
Armour: 11 tons, 0.4 %
- Armament: 11 tons, 0.4 %
Machinery: 1,626 tons, 63.7 %
Hull, fittings & equipment: 577 tons, 22.6 %
Fuel, ammunition & stores: 297 tons, 11.6 %
Miscellaneous weights: 0 tons, 0.0 %
Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
509 lbs / 231 Kg = 15.9 x 4.0 " / 102 mm shells or 0.3 torpedoes
Stability (Unstable if below 1.00): 1.48
Metacentric height 1.9 ft / 0.6 m
Roll period: 10.2 seconds
Steadiness - As gun platform (Average = 50 %): 96 %
- Recoil effect (Restricted arc if above 1.00): 0.23
Seaboat quality (Average = 1.00): 1.62
Hull form characteristics:
Hull has rise forward of midbreak,
a normal bow and a cruiser stern
Block coefficient (normal/deep): 0.424 / 0.434
Length to Beam Ratio: 9.12 : 1
'Natural speed' for length: 17.61 kts
Power going to wave formation at top speed: 64 %
Trim (Max stability = 0, Max steadiness = 100): 59
Bow angle (Positive = bow angles forward): 0.00 degrees
Stern overhang: 0.00 ft / 0.00 m
Freeboard (% = length of deck as a percentage of waterline length):
Fore end, Aft end
- Forecastle: 20.00 %, 22.00 ft / 6.71 m, 20.00 ft / 6.10 m
- Forward deck: 30.00 %, 20.00 ft / 6.10 m, 20.00 ft / 6.10 m
- Aft deck: 35.00 %, 12.00 ft / 3.66 m, 12.00 ft / 3.66 m
- Quarter deck: 15.00 %, 12.00 ft / 3.66 m, 12.00 ft / 3.66 m
- Average freeboard: 16.16 ft / 4.93 m
Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 209.7 %
- Above water (accommodation/working, high = better): 101.4 %
Waterplane Area: 6,590 Square feet or 612 Square metres
Displacement factor (Displacement / loading): 59 %
Structure weight / hull surface area: 37 lbs/sq ft or 183 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.55
- Longitudinal: 3.70
- Overall: 0.67
Extremely poor machinery, storage, compartmentation space - Its a destroyer and they are always cramped in this era
Adequate 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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Post by oldpop2000 on Jul 7, 2017 21:36:00 GMT -6
Well, the Director of Naval Construction did not like my first design of the Swift, I think it was the use of oil, which we don't have yet so I had to go back to the drawing board and use coal. Here is my second design and hopefully they will like this one. I know the Royal Dockyards will.
HMS Swift, England Torpedo Boat Destroyer laid down 1905
Displacement:
2,383 t light; 2,449 t standard; 2,783 t normal; 3,050 t full load
Dimensions: Length (overall / waterline) x beam x draught (normal/deep)
(300.00 ft / 300.00 ft) x 36.00 ft x (18.00 / 19.30 ft)
(91.44 m / 91.44 m) x 10.97 m x (5.49 / 5.88 m)
Armament:
4 - 4.00" / 102 mm 40.0 cal guns - 30.67lbs / 13.91kg shells, 150 per gun
Breech loading guns in turret on barbette mounts, 1905 Model
4 x Single mounts on centreline ends, evenly spread
Weight of broadside 123 lbs / 56 kg
Main Torpedoes
1 - 21.0" / 533 mm, 17.50 ft / 5.33 m torpedo - 1.018 t total
In a deck mounted side rotating tube
2nd Torpedoes
1 - 21.0" / 533 mm, 17.50 ft / 5.33 m torpedo - 1.018 t total
In a deck mounted side rotating tube
Armour:
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 0.50" / 13 mm - 1.00" / 25 mm
Machinery:
Coal fired boilers, steam turbines,
Direct drive, 2 shafts, 26,986 shp / 20,131 Kw = 27.00 kts
Range 2,999nm at 12.00 kts
Bunker at max displacement = 601 tons (100% coal)
Complement:
191 - 249
Cost:
£0.345 million / $1.382 million
Distribution of weights at normal displacement:
Armament: 36 tons, 1.3 %
- Guns: 32 tons, 1.2 %
- Weapons: 4 tons, 0.1 %
Armour: 18 tons, 0.7 %
- Armament: 18 tons, 0.7 %
Machinery: 1,797 tons, 64.6 %
Hull, fittings & equipment: 531 tons, 19.1 %
Fuel, ammunition & stores: 400 tons, 14.4 %
Miscellaneous weights: 0 tons, 0.0 %
Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
529 lbs / 240 Kg = 16.5 x 4.0 " / 102 mm shells or 0.3 torpedoes
Stability (Unstable if below 1.00): 1.62
Metacentric height 2.4 ft / 0.7 m
Roll period: 9.7 seconds
Steadiness - As gun platform (Average = 50 %): 93 %
- Recoil effect (Restricted arc if above 1.00): 0.18
Seaboat quality (Average = 1.00): 1.58
Hull form characteristics:
Hull has rise forward of midbreak,
a normal bow and a cruiser stern
Block coefficient (normal/deep): 0.501 / 0.512
Length to Beam Ratio: 8.33 : 1
'Natural speed' for length: 17.32 kts
Power going to wave formation at top speed: 67 %
Trim (Max stability = 0, Max steadiness = 100): 59
Bow angle (Positive = bow angles forward): 0.00 degrees
Stern overhang: 0.00 ft / 0.00 m
Freeboard (% = length of deck as a percentage of waterline length):
Fore end, Aft end
- Forecastle: 20.00 %, 22.00 ft / 6.71 m, 20.00 ft / 6.10 m
- Forward deck: 30.00 %, 20.00 ft / 6.10 m, 20.00 ft / 6.10 m
- Aft deck: 35.00 %, 15.00 ft / 4.57 m, 15.00 ft / 4.57 m
- Quarter deck: 15.00 %, 15.00 ft / 4.57 m, 15.00 ft / 4.57 m
- Average freeboard: 17.66 ft / 5.38 m
Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 211.7 %
- Above water (accommodation/working, high = better): 115.4 %
Waterplane Area: 7,202 Square feet or 669 Square metres
Displacement factor (Displacement / loading): 60 %
Structure weight / hull surface area: 33 lbs/sq ft or 161 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.48
- Longitudinal: 3.46
- Overall: 0.59
Extremely poor machinery, storage, compartmentation space
Adequate 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
Submitted by Sir oldpop2000
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