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Pensacola-class Cúrsóir
- LÉ Granuaile (CU-01) - 1925 (acquired 1939)

Granuaile, Irish Heavy Cruiser laid down 1925
The Granuaile (ex-USS Salt Lake City) was purchased from the United States in 1939. The Irish wanted to purchase both ships, but the US had already sold the USS Pensacola to Persia, and the Irish were unable to acquire it. However, the Irish were able to pay immediately and take possession of the Salt Lake City in 1939, before the Persians announced their purchase of the Pensacola.

Displacement:
10,724 t light; 11,189 t standard; 12,741 t normal; 13,983 t full load

Dimensions: Length overall / water x beam x draught
587.64 ft / 570.00 ft x 65.25 ft x 22.00 ft (normal load)
179.11 m / 173.74 m x 19.89 m x 6.71 m

Armament:
4 - 8.00" / 203 mm guns (2x2 guns), 256.00lbs / 116.12kg shells, 1925 Model
Breech loading guns in turrets (on barbettes)
on centreline ends, evenly spread
6 - 8.00" / 203 mm guns (2x3 guns), 256.00lbs / 116.12kg shells, 1925 Model
Breech loading guns in turrets (on barbettes)
on centreline ends, evenly spread, all raised mounts
6 - 4.50" / 114 mm guns in single mounts, 45.56lbs / 20.67kg shells, 1939 Model
Dual purpose guns in deck mounts with hoists
on side, all amidships
16 - 1.57" / 40.0 mm guns (8x2 guns), 1.95lbs / 0.88kg shells, 1939 Model
Anti-aircraft guns in deck mounts
on side, evenly spread
16 - 1.10" / 27.9 mm guns (4x4 guns), 0.67lbs / 0.30kg shells, 1939 Model
Anti-aircraft guns in deck mounts
on side, evenly spread
Weight of broadside 2,875 lbs / 1,304 kg
Shells per gun, main battery: 120

Armour:
- Belts: Width (max) Length (avg) Height (avg)
Main: 3.00" / 76 mm 405.00 ft / 123.44 m 14.90 ft / 4.54 m
Ends: Unarmoured
Main Belt covers 109 % of normal length

- Gun armour: Face (max) Other gunhouse (avg) Barbette/hoist (max)
Main: 3.00" / 76 mm 1.00" / 25 mm 3.00" / 76 mm
2nd: 3.00" / 76 mm 1.00" / 25 mm 3.00" / 76 mm

- Armour deck: 1.00" / 25 mm, Conning tower: 3.00" / 76 mm

Machinery:
Oil fired boilers, steam turbines,
Geared drive, 4 shafts, 104,052 shp / 77,623 Kw = 32.00 kts
Range 10,000nm at 15.00 kts
Bunker at max displacement = 2,794 tons

Complement:
599 - 779

Cost:
£3.764 million / $15.057 million

Distribution of weights at normal displacement:
Armament: 359 tons, 2.8 %
Armour: 1,623 tons, 12.7 %
- Belts: 753 tons, 5.9 %
- Torpedo bulkhead: 0 tons, 0.0 %
- Armament: 357 tons, 2.8 %
- Armour Deck: 478 tons, 3.8 %
- Conning Tower: 35 tons, 0.3 %
Machinery: 3,378 tons, 26.5 %
Hull, fittings & equipment: 5,213 tons, 40.9 %
Fuel, ammunition & stores: 2,017 tons, 15.8 %
Miscellaneous weights: 150 tons, 1.2 %

Overall survivability and seakeeping ability:
Survivability (Non-critical penetrating hits needed to sink ship):
12,731 lbs / 5,775 Kg = 49.7 x 8.0 " / 203 mm shells or 1.5 torpedoes
Stability (Unstable if below 1.00): 1.07
Metacentric height 3.0 ft / 0.9 m
Roll period: 15.8 seconds
Steadiness - As gun platform (Average = 50 %): 70 %
- Recoil effect (Restricted arc if above 1.00): 0.79
Seaboat quality (Average = 1.00): 1.12

Hull form characteristics:
Hull has a flush deck
Block coefficient: 0.545
Length to Beam Ratio: 8.74 : 1
'Natural speed' for length: 23.87 kts
Power going to wave formation at top speed: 61 %
Trim (Max stability = 0, Max steadiness = 100): 62
Bow angle (Positive = bow angles forward): 26.10 degrees
Stern overhang: -2.60 ft / -0.79 m
Freeboard (% = measuring location as a percentage of overall length):
- Stem: 36.00 ft / 10.97 m
- Forecastle (20 %): 27.00 ft / 8.23 m
- Mid (50 %): 20.50 ft / 6.25 m
- Quarterdeck (34 %): 19.50 ft / 5.94 m
- Stern: 22.00 ft / 6.71 m
- Average freeboard: 23.50 ft / 7.16 m

Ship space, strength and comments:
Space - Hull below water (magazines/engines, low = better): 109.0 %
- Above water (accommodation/working, high = better): 184.4 %
Waterplane Area: 25,835 Square feet or 2,400 Square metres
Displacement factor (Displacement / loading): 112 %
Structure weight / hull surface area: 121 lbs/sq ft or 592 Kg/sq metre
Hull strength (Relative):
- Cross-sectional: 0.92
- Longitudinal: 2.07
- Overall: 1.00
Hull space for machinery, storage, compartmentation is adequate
Room for accommodation and workspaces is excellent
Ship has slow, easy roll, a good, steady gun platform

Breakdown of Miscellaneous Weights:
N/A

Ships in Class:
- LÉ Granuaile - 1925 (acquired 1939)