WesWorld

HMAS Albatross
HMAS Penguin

Australia Seaplane Carrier laid down 1935

Displacement:
3,254 t light; 3,364 t standard; 4,493 t normal; 5,396 t full load

Dimensions: Length overall / water x beam x draught
370.00 ft / 370.00 ft x 50.00 ft x 17.00 ft (normal load)
112.78 m / 112.78 m x 15.24 m x 5.18 m

Armament:
4 - 4.72" / 120 mm guns (2x2 guns), 52.58lbs / 23.85kg shells, 1935 Model
Dual purpose guns in deck mounts with hoists
on centreline, evenly spread
8 - 1.57" / 40.0 mm guns (2x4 guns), 1.95lbs / 0.88kg shells, 1935 Model
Anti-aircraft guns in deck mounts
on side, all amidships
10 - 0.79" / 20.0 mm guns in single mounts, 0.24lbs / 0.11kg shells, 1935 Model
Breech loading guns in deck mounts
on side, evenly spread
Weight of broadside 228 lbs / 104 kg
Shells per gun, main battery: 150

Armour:
- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 1.20" / 30 mm - -

Machinery:
Diesel Internal combustion motors,
Geared drive, 2 shafts, 20,358 shp / 15,187 Kw = 24.00 kts
Range 15,000nm at 15.00 kts
Bunker at max displacement = 2,032 tons

Complement:
273 - 356

Cost:
£1.114 million / $4.456 million

Distribution of weights at normal displacement:
Armament: 29 tons, 0.6 %
Armour: 11 tons, 0.2 %
- Belts: 0 tons, 0.0 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 11 tons, 0.2 %
- Armour Deck: 0 tons, 0.0 %
- Conning Tower: 0 tons, 0.0 %
Machinery: 578 tons, 12.9 %
Hull, fittings & equipment: 1,436 tons, 32.0 %
Fuel, ammunition & stores: 1,239 tons, 27.6 %
Miscellaneous weights: 1,200 tons, 26.7 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
7,482 lbs / 3,394 Kg = 142.3 x 4.7 " / 120 mm shells or 1.6 torpedoes
Stability (Unstable if below 1.00): 1.17
Metacentric height 2.4 ft / 0.7 m
Roll period: 13.7 seconds
Steadiness - As gun platform (Average = 50 %): 51 %
- Recoil effect (Restricted arc if above 1.00): 0.10
Seaboat quality (Average = 1.00): 1.53

Hull form characteristics:
Hull has rise forward of midbreak
Block coefficient: 0.500
Length to Beam Ratio: 7.40 : 1
'Natural speed' for length: 19.24 kts
Power going to wave formation at top speed: 57 %
Trim (Max stability = 0, Max steadiness = 100): 33
Bow angle (Positive = bow angles forward): 0.00 degrees
Stern overhang: 0.00 ft / 0.00 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 25.00 ft / 7.62 m
- Forecastle (20 %): 20.00 ft / 6.10 m
- Mid (50 %): 20.00 ft / 6.10 m (15.00 ft / 4.57 m aft of break)
- Quarterdeck (15 %): 15.00 ft / 4.57 m
- Stern: 15.00 ft / 4.57 m
- Average freeboard: 17.90 ft / 5.46 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 76.4 %
- Above water (accommodation/working, high = better): 148.8 %
Waterplane Area: 12,326 Square feet or 1,145 Square metres
Displacement factor (Displacement / loading): 173 %
Structure weight / hull surface area: 69 lbs/sq ft or 338 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.90
- Longitudinal: 2.57
- Overall: 1.00
Hull space for machinery, storage, compartmentation is excellent
Room for accommodation and workspaces is excellent
Excellent seaboat, comfortable, can fire her guns in the heaviest weather

200 t: Facilities for 1 aircraft (or 8 smaller ones)
50 t: Flag facilities
50 t: Crane
200 t: Stores
700 t: Spare