WesWorld

I found my original line drawing and so changed my computer picture accordingly. Thanks to Hooman for putting her online.

I've also modified the cruising range so it goes further at a lower speed. The large number of guns are useful for surface warfare and the threat of aircraft in the future. There is also 100t of misc. weight for depth charges etc. The black objects aft of the 2pdr guns are depth charge throwers. There are also depth charge racks on the stern.



Guardino, Italian Frigate laid down 1917

Displacement:
1,017 t light; 1,048 t standard; 1,191 t normal; 1,301 t full load
Loading submergence 157 tons/feet

Dimensions:
280.00 ft x 27.58 ft x 9.00 ft (normal load)
85.34 m x 8.41 m x 2.74 m

Armament:
6 - 3.00" / 76 mm guns
2 - 1.59" / 41 mm AA guns
Weight of broadside 85 lbs / 39 kg

Armour:
Main gun shields 1.00" / 25 mm
Conning tower 1.00" / 25 mm

Machinery:
Diesel Internal combustion motors,
Electric cruising motors plus geared drives, 1 shaft, 4,848 shp / 3,616 Kw = 20.00 kts
Range 8,000nm at 10.00 kts

Complement:
101 - 131

Cost:
£0.126 million / $0.505 million

Distribution of weights at normal displacement:
Armament: 11 tons, 0.9 %
Armour: 7 tons, 0.6 %
Belts: 0 tons, 0.0 %, Armament: 4 tons, 0.4 %, Armour Deck: 0 tons, 0.0 %
Conning Tower: 2 tons, 0.2 %, Torpedo bulkhead: 0 tons, 0.0 %
Machinery: 178 tons, 14.9 %
Hull, fittings & equipment: 722 tons, 60.6 %
Fuel, ammunition & stores: 174 tons, 14.6 %
Miscellaneous weights: 100 tons, 8.4 %

Metacentric height 0.8

Remarks:
Hull space for machinery, storage & compartmentation is excellent
Room for accommodation & workspaces is adequate

Estimated overall survivability and seakeeping ability:
Relative margin of stability: 1.05
Shellfire needed to sink: 2,042 lbs / 926 Kg = 151.2 x 3.0 " / 76 mm shells
(Approx weight of penetrating shell hits needed to sink ship excluding critical hits)
Torpedoes needed to sink: 1.0
(Approx number of typical torpedo hits needed to sink ship)
Relative steadiness as gun platform: 61 %
(Average = 50 %)
Relative rocking effect from firing to beam: 0.11
Relative quality as seaboat: 1.03

Hull form characteristics:
Block coefficient: 0.600
Sharpness coefficient: 0.36
Hull speed coefficient 'M': 8.07
'Natural speed' for length: 16.73 kts
Power going to wave formation at top speed: 52 %
Trim: 59
(Maximise stabilty/flotation = 0, Maximise steadiness/seakeeping = 100)

Estimated hull characteristics & strength:
Underwater volume absorbed by magazines and engineering spaces: 65.4 %
Relative accommodation and working space: 93.1 %
(Average = 100%)
Displacement factor: 218 %
(Displacement relative to loading factors)
Relative cross-sectional hull strength: 2.00
(Structure weight / hull surface area: 83 lbs / square foot or 406 Kg / square metre)
Relative longitudinal hull strength: 2.10
(for 9.00 ft / 2.74 m average freeboard, freeboard adjustment -0.90 ft)
Relative composite hull strength: 2.01