Added some extra armour (end and upper belts!) since I had oodles of hull strength left...also added an AA gun (a post-
Otta-strike mod
).
Also Metricsed, bent, folded, spindled and mutilitated.
Filipino G-100 class gunboat, laid down 1925
Length, 172 ft x Beam, 28.0 ft x Depth, 9.0 ft
545 tons normal displacement (497 tons standard)
Main battery: 4 x 3.94-inch / 100mm
AA battery: 1 x 2.24-inch / 57mm
Light battery: 2 x 0.54-inch / 13.7mm
Weight of broadside: 134 lbs
Main belt, 4.30 inches; bow and stern, 0.98 inches
Upper belt, 1.18 inches
Armor deck, average 1.18 inches
C.T., 2.56 inches
Battery armor:
Main, 1.97" shields
AA, 0.98" shields
Maximum speed for 1500 shp = 16.09 knots
Approximate cruising radius, 5000 nm / 10 kts
Typical complement: 56-73
Estimated cost, $483,000 (£121,000)
Remarks:
Relative extent of belt armor, 54 percent of 'typical' coverage.
Ship has slow, easy roll; a good, steady gun platform.
Excellent seaboat; comfortable and able to fight her guns
in the heaviest weather.
Magazines and engineering spaces are roomy, with superior
watertight subdivision.
Distribution of weights:
Percent
normal
displacement:
Armament ......................... 16 tons = 3 pct
Armor, total ..................... 177 tons = 32 pct
Belt 104 tons = 19 pct
Deck 61 tons = 11 pct
C.T. 4 tons = 1 pct
Armament 9 tons = 2 pct
Machinery ........................ 49 tons = 9 pct
Hull and fittings; equipment ..... 229 tons = 42 pct
Fuel, ammunition, stores ......... 69 tons = 13 pct
Miscellaneous weights ............ 5 tons = 1 pct
-----
545 tons = 100 pct
Estimated metacentric height, 0.9 ft
Displacement summary:
Light ship: 476 tons
Standard displacement: 497 tons
Normal service: 545 tons
Full load: 581 tons
Loading submergence 79 tons/foot
+++++++++++++++++++++++++
Estimated overall survivability and seakeeping ability:
Relative margin of stability: 1.13
Shellfire needed to sink: 1294 lbs = 42.3 x 3.9-inch shells
(Approximates weight of penetrating
shell hits needed to sink ship,
not counting critical hits)
Torpedoes needed to sink: 1.0
(Approximates number of 'typical'
torpedo hits needed to sink ship)
Relative steadiness as gun platform, 71 percent
(50 percent is 'average')
Relative rocking effect from firing to beam, 0.23
Relative quality as a seaboat: 1.51
+++++++++++++++++++++++++
Hull form characteristics:
Block coefficient: 0.44
Sharpness coefficient: 0.37
Hull speed coefficient 'M' = 6.43
'Natural speed' for length = 13.1 knots
Power going to wave formation
at top speed: 55 percent
Estimated hull characteristics and strength:
Relative underwater volume absorbed by
magazines and engineering spaces: 54 percent
Relative accommodation and working space: 90 percent
Displacement factor: 133 percent
(Displacement relative to loading factors)
Relative cross-sectional hull strength: 0.97
(Structure weight per square
foot of hull surface: 47 lbs)
Relative longitudinal hull strength: 3.87
(for 9.6 ft average freeboard;
freeboard adjustment +1.1 ft)
Relative composite hull strength: 1.11
+++++++++++++++++++++++++
[Machine-readable parameters: Spring Style v. 1.2.1]
172.00 x 28.00 x 9.00; 9.60 -- Dimensions
0.44 -- Block coefficient
1925 -- Year laid down
16.09 / 5000 / 10.00; Oil-fired turbine or equivalent -- Speed / radius / cruise
5 tons -- Miscellaneous weights
++++++++++
4 x 3.94; 0 -- Main battery; turrets
Gun-shields
:
0 -- No secondary battery
1 x 2.24 -- Tertiary (QF/AA) battery
Gun-shields
:
2 x 0.54 -- Fourth (light) battery
0 -- No torpedo armament
++++++++++
4.30 / 0.98 / 1.18 / 0.00; 54 -- Belt armor; relative extent
1.18 / 2.56 -- Deck / CT
1.97 / 0.00 / 0.98 / 0.00 -- Battery armor
+++++++++++++++++++++++++++++++++++++++++++++++++++++++