WesWorld

AdmKuznetsov
Spammer wanna be
Posts: 47
(5/14/03 6:20:03 pm)
Reply Imperator Petr Veliki Class
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Here is what the Russian Federation has working up. There are four ships in this class, the Imperator Petr Veliki, Dimitri Donskoy, Aleksandr Nevsky, and Yaroslav Medniy. They will be completed in the 4th quarter of 1921. They are a development of a prewar Russian design, incorporating lessons learned in the Great War:


Imperator Petr Veiliki Class Battleships, laid down 1918
Length, 220.0 m x Beam, 32.6 m x Depth, 9.2 m
39921 tonnes normal displacement (38088 tonnes standard)
Main battery: 12 x 38.1-cm (3 x 4; 1 superfiring)
Secondary battery: 24 x 13.0-cm
AA battery: 8 x 10.0-cm
Light battery: 24 x 3.7-cm
Weight of broadside: 10065 kg
Main belt, 36.0 cm; ends unarmored
Torpedo bulkhead, 2.0 cm
Armor deck, average 12.0 cm
Conning tower, 40.0 cm
Battery armor:
Main, 40.0 cm / secondary, 8.0 cm
AA, 2.5 cm shields / light guns, 2.5 cm shields
Aircraft - 3 Seaplanes, 1 Catapult
Maximum speed for 57006 shaft kw = 25.00 knots
Approximate cruising radius, 5000 nm / 15 knots
Typical complement: 1412-1836

Estimated cost, $31.610 million (£7.903 million)
Remarks:
Oil firing.
Relative extent of belt armor, 94 percent of 'typical' coverage.
Ship has slow, easy roll; a good, steady gun platform.
Good seaboat; rides out heavy weather easily.
Ship is roomy, with superior accommodation and working space.
Main deck secondary guns subject to being washed down
in a seaway.

Distribution of weights:
Percent
normal
displacement:
Armament ......................... 2768 tonnes = 7 pct
Armor, total ..................... 13209 tonnes = 33 pct
Belt 3337 tonnes = 8 pct
Torpedo bulkhead 414 tonnes = 1 pct
Deck 4785 tonnes = 12 pct
C.T. 398 tonnes = 1 pct
Armament 4275 tonnes = 11 pct
Machinery ........................ 2756 tonnes = 7 pct
Hull and fittings; equipment ..... 16637 tonnes = 42 pct
Fuel, ammunition, stores ......... 4477 tonnes = 11 pct
Miscellaneous weights ............ 75 tonnes = 0 pct
-----
39921 tonnes = 100 pct
Estimated metacentric height, 1.8 m
Displacement summary:
Light ship: 35444 tonnes
Standard displacement: 38088 tonnes
Normal service: 39921 tonnes
Full load: 41228 tonnes
Loading submergence 5135 tonnes/metre
+++++++++++++++++++++++++

Estimated overall survivability and seakeeping ability:
Relative margin of stability: 1.03
Shellfire needed to sink: 17514 kg = 22.8 x 38.1-cm shells
(Approximates weight of penetrating
shell hits needed to sink ship,
not counting critical hits)
Torpedoes needed to sink: 4.9
(Approximates number of 'typical'
torpedo hits needed to sink ship)
Relative steadiness as gun platform, 70 percent
(50 percent is 'average')
Relative rocking effect from firing to beam, 0.75
Relative quality as a seaboat: 1.20
+++++++++++++++++++++++++

Hull form characteristics:
Block coefficient: 0.60
Sharpness coefficient: 0.41
Hull speed coefficient 'M' = 6.46
'Natural speed' for length = 26.9 knots
Power going to wave formation
at top speed: 46 percent

Estimated hull characteristics and strength:
Relative underwater volume absorbed by
magazines and engineering spaces: 94 percent
Relative accommodation and working space: 149 percent

Displacement factor: 99 percent
(Displacement relative to loading factors)

Relative cross-sectional hull strength: 0.98
(Structure weight per square
metre of hull surface: 1092 kg)
Relative longitudinal hull strength: 1.24
(for 6.14 m average freeboard;
freeboard adjustment +0.05 m)
Relative composite hull strength: 1.00
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[Machine-readable parameters: Spring Style v. 1.2.1]
721.60 x 106.93 x 30.18; 20.14 -- Dimensions
0.60 -- Block coefficient
1918 -- Year laid down
25.00 / 5000 / 15.00; Oil-fired turbine or equivalent -- Speed / radius / cruise
75 tons -- Miscellaneous weights
++++++++++
12 x 15.00; 3; 1 -- Main battery; turrets; superfiring
:
24 x 5.12; 0 -- Secondary battery; turrets
Main deck battery
:
8 x 3.94 -- Tertiary (QF/AA) battery
Gun-shields
:
24 x 1.46 -- Fourth (light) battery
0 -- No torpedo armament
++++++++++
14.17 / 0.00 / 0.00 / 0.79; 94 -- Belt armor; relative extent
4.72 / 15.75 -- Deck / CT
15.75 / 3.15 / 0.98 / 0.98 -- Battery armor

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

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Visit my Russian/French fantasy fleet page:
admkuznetsov.tripod.com

King of Riva
So you want to be a spammer
Posts: 146
(5/15/03 3:24:49 am)
Reply Hmmmm....
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Is the superfiring turret aft as one some of the projected french units?

AdmKuznetsov
Spammer wanna be
Posts: 48
(5/15/03 7:56:35 am)
Reply Re: Hmmmm....
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Yes, similar to the original Normandie Class before the French turned them into aircraft carriers or razor blades. Bubnov's original 1914 design had a turret layout similar to the Izmail class battlecruisers, with the forward turret on a raised forecastle, and the remaining turrets on the same (lower) level. Some of the modifications to Bubnov's design are to switch the positions of the midships turret and the 2nd smokestack, and raise the midships turret to improve its firing arc aft while lowering the forecastle somewhat.

Visit my Russian/French fantasy fleet page:
admkuznetsov.tripod.com