Self-escorting oiler. Basiclly an oiler with a flight deck and small hangar. Use would be as a convoy flagship, providing fuel for the convoy escorts.
Both the original idea and the pic (modified) where stolen from Rocky.
HMAS Flinders Range, Australia Self-escorting Oiler laid down 1936
Displacement:
5,001 t light; 5,234 t standard; 10,114 t normal; 14,017 t full load
Dimensions: Length overall / water x beam x draught
495.67 ft / 490.00 ft x 70.00 ft x 17.20 ft (normal load)
151.08 m / 149.35 m x 21.34 m x 5.24 m
Armament:
4 - 4.70" / 119 mm guns (2x2 guns), 51.91lbs / 23.55kg shells, 1936 Model
Dual purpose guns in deck mounts
on centreline ends, evenly spread
4 - 1.57" / 40.0 mm guns (2x2 guns), 1.95lbs / 0.88kg shells, 1936 Model
Dual purpose guns in deck mounts
on centreline, all amidships, all raised mounts - superfiring
8 - 1.57" / 40.0 mm guns (4x2 guns), 1.95lbs / 0.88kg shells, 1936 Model
Anti-aircraft guns in deck mounts
on side, evenly spread
20 - 0.79" / 20.0 mm guns (10x2 guns), 0.24lbs / 0.11kg shells, 1936 Model
Machine guns in deck mounts
on side, evenly spread
Weight of broadside 236 lbs / 107 kg
Shells per gun, main battery: 220
Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 2.00" / 51 mm 200.00 ft / 60.96 m 9.00 ft / 2.74 m
Ends: Unarmoured
Main Belt covers 63 % of normal length
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 1.20" / 30 mm - -
- Armour deck: 1.00" / 25 mm
Machinery:
Oil fired boilers, steam turbines,
Geared drive, 4 shafts, 15,881 shp / 11,847 Kw = 20.00 kts
Range 40,000nm at 15.00 kts
Bunker at max displacement = 8,783 tons
Complement:
503 - 655
Cost:
£1.382 million / $5.530 million
Distribution of weights at normal displacement:
Armament: 29 tons, 0.3 %
Armour: 649 tons, 6.4 %
- Belts: 174 tons, 1.7 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 11 tons, 0.1 %
- Armour Deck: 464 tons, 4.6 %
- Conning Tower: 0 tons, 0.0 %
Machinery: 446 tons, 4.4 %
Hull, fittings & equipment: 2,826 tons, 27.9 %
Fuel, ammunition & stores: 5,113 tons, 50.6 %
Miscellaneous weights: 1,050 tons, 10.4 %
Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
49,434 lbs / 22,423 Kg = 952.3 x 4.7 " / 119 mm shells or 7.6 torpedoes
Stability (Unstable if below 1.00): 1.72
Metacentric height 7.1 ft / 2.2 m
Roll period: 11.0 seconds
Steadiness - As gun platform (Average = 50 %): 72 %
- Recoil effect (Restricted arc if above 1.00): 0.01
Seaboat quality (Average = 1.00): 1.84
Hull form characteristics:
Hull has a flush deck
Block coefficient: 0.600
Length to Beam Ratio: 7.00 : 1
'Natural speed' for length: 22.14 kts
Power going to wave formation at top speed: 43 %
Trim (Max stability = 0, Max steadiness = 100): 39
Bow angle (Positive = bow angles forward): 9.00 degrees
Stern overhang: 2.50 ft / 0.76 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 20.00 ft / 6.10 m
- Forecastle (20 %): 17.00 ft / 5.18 m
- Mid (40 %): 17.00 ft / 5.18 m
- Quarterdeck (15 %): 17.00 ft / 5.18 m
- Stern: 17.00 ft / 5.18 m
- Average freeboard: 17.24 ft / 5.25 m
Ship tends to be wet forward
Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 29.5 %
- Above water (accommodation/working, high = better): 161.5 %
Waterplane Area: 25,086 Square feet or 2,331 Square metres
Displacement factor (Displacement / loading): 358 %
Structure weight / hull surface area: 82 lbs/sq ft or 402 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.98
- Longitudinal: 1.17
- Overall: 1.00
Hull space for machinery, storage, compartmentation is excellent
Room for accommodation and workspaces is excellent
Ship has slow, easy roll, a good, steady gun platform
Excellent seaboat, comfortable, can fire her guns in the heaviest weather
10 Aircraft