Caio Duilio Class (2 Ships)
CAIO DUILIO
ANDREA DORIA

CAIO DUILIO

ANDREA DORIA
Keel Laid:

February 24, 1912

March 24, 1912
Launched:

April 24, 1913

March 23, 1913
Commissioned:

May 6, 1915

March 13, 1916
Builder:

R. Cantiere of Castellammore di Stabia

R. Arsenale of La Spezia
Machinery:

3 groups of Parsons geared turbines
(after reconstruction 2 groups of Belluzzo geared turbines)

3 groups of Parsons geared turbines
(after reconstruction 2 groups of Belluzzo geared turbines)
Original Boilers Manufactured:

8 Yarrow boilers burning oil
12 boilers burning coal
(after reconstruction 8 Yarrow boilers)

18 Yarrow boilers burning oil
12 boilers burning coal
(after reconstruction 8 Yarrow boilers)
Original Fuel:

Oil, 845 tons; coal 1476 tons
(after reconstruction Oil 2241 tons)

Oil, 845 tons; coal 1476 tons
(after reconstruction Oil 2191 tons)
Drive:

4shafts/4 screws (3 blades)
(after reconstruction 2shafts/2 screws (3 blades))

4shafts/4 screws (3 blades)
(after reconstruction 2shafts/2 screws (3 blades))
Designed Speed:

22 knots
(after reconstruction 27 knots)

22 knots
(after reconstruction 27 knots)
Designed HP:

32,000
(after reconstruction 75,000 (norm.), 84,300 (trials))

32,000
(after reconstruction 75,000 (norm.), 86,300 (trials))
Design Comments: Reconstruction: C.N.T., Genoa from April 1, 1937 to July 15, 1940
(date of recommissioning)		 Reconstruction: C.R.D.A., Trieste from April 8, 1937 to Oct. 20, 1940
(date of recommissioning)
Displacement Standard Tons:

22,930
(after reconstruction 28,680)

22,968
(after reconstruction 28,200)
Displacement Full Load Tons:

24,690
(after reconstruction 29,374)

24,729
(after reconstruction 28,882)
Design Crew Complement:

44 officers
850 enlisted
(after reconstruction:
62-73 officers
1450 enlisted)

44 officers
850 enlisted
(after reconstruction:
62-73 officers
1450 enlisted)
Length:

(p.p.) 168.96m , (o.a.) 176.09m
(after reconstruction
(p.p.) 168.96m , (o.a.) 186.91m )

(p.p.) 168.96m , (o.a.) 176.09m
(after reconstruction
(p.p.) 168.96m , (o.a.) 186.91m )
Beam:

(o.a.) 28m
(after reconstruction 28.03m )

(o.a.) 28m
(after reconstruction 28.03m )
Draught:

9.44 m
(after reconstruction 10.31m)

9.44 m
(after reconstruction 10.20m)
Guns:

13 - 12 inch/46 cal. mod. A. 1909
14 - 6 inch/45 cal. mod. A. V. 1913
19 - 3 inch/50 cal. mod. V. 1909
(after reconstruction:
10 - 12.6 inch/43.8 cal mod. Ansaldo and O.T.O.'34
12 - 5.3 inch/45 cal mod. O.T.O'37
10 - 3.5 inch/50 cal mod Ansaldo '39
15 - 37/54mm mg mod. Breda '39 (*)
16 - 20mm mg mod. Breda '35(*)
(*) from 1942:
19 - 37/54mm MG
16 - 20/65mm MG
from 1949:
16 - 37/54mm MG
12 - 20/65mm MG

13 - 12 inch/46 cal. mod. V. 1909
14 - 6 inch/45 cal. mod. V. 1909
19 - 3 inch/50 cal. mod. V. 1909
(after reconstruction:
10 - 12.6 inch/43.8 cal mod. Ansaldo and O.T.O.'34
12 - 5.3 inch/45 cal mod. O.T.O'37
10 - 3.5 inch/50 cal mod Ansaldo '39
15 - 37/54mm mg mod. Breda '39 (*)
16 - 20mm mg mod. Breda '35(*)
(*) from 1942:
19 - 37/54mm MG
16 - 20/65mm MG
from 1949:
16 - 37/54mm MG
12 - 20/65mm MG
Aircraft:

1 - Macchi M.18

1 - Macchi M.18
Catapults:

In 1926, 1 forward portside

In 1926, 1 forward portside
Torpedo Tubes:

3 underwater 18 inch

3 underwater 18 inch
Armour: Side Belt 3.1"- 5.1"- 9.8" (79-129.5-249mm)
Deck 3 decks of 0.5"-1.6" (12.7-41mm)
after reconstruction increased to 0.5"- 4" (12.7-101.6mm)
Turrets 11" (279.4mm) face
9.4" (238.7mm) sides
3.3" (84mm) roof
Barbettes 5.1"-12" (130-305mm)
Secondary Turrets 4.7" (119.4mm) (after reconstruction 1937)
Casemates 4.3"- 5.1" (109-129.5mm)
Conning Tower 11"- 3.9" (279.4-100mm) main
7.1"- 3.9" (180-100mm) rear
reduced to 10.2"- 3.9" (259-100mm) (after reconstruction 1937)		 Side Belt 3.1"- 5.1"- 9.8" (79-129.5-249mm)
Deck 3 decks of 0.5"-1.6" (12.7-41mm)
after reconstruction increased to 0.5"- 4" (12.7-101.6mm)
Turrets 11" (279.4mm) face
9.4" (238.7mm) sides
3.3" (84mm) roof
Barbettes 5.1"-12" (130-305mm)
Secondary Turrets 4.7" (119.4mm) (after reconstruction 1937)
Casemates 4.3"- 5.1" (109-129.5mm)
Conning Tower 11"- 3.9" (279.4-100mm) main
7.1"- 3.9" (180-100mm) rear
reduced to 10.2"- 3.9" (259-100mm) (after reconstruction 1937)
Notes:

Removed from the list on Sept. 15, 1956

Project designer: Lieutenant General (Engineer) Giuseppe Valsecchi

Project designer for rebuilding: General (Engineer) F. Rotundi

Removed from the list on Nov. 1, 1956

Project designer: Lieutenant General (Engineer) Giuseppe Valsecchi

Project designer for rebuilding: General (Engineer) F. Rotundi


History Highlights:
CAIO DULIO
- 1947 recieved her first radar sets (2 type L.W.s.)
ANDREA DORIA
- 1949 recieved her first radar sets (2 type L.W.s. and 1 nauticus set)


CAIO DULIO


CAIO DULIO


ANDREA DORIA


ANDREA DORIA


The Doria in Pola, in the summer of 1940, following her reconstruction.
Note the boat davits folded alongside the hull when not in use.


Veneto and Doria, conducting gunnery exercises in the Tyrrhenian Sea, on Jan. 11,1941


The Doria moored in the Navy yard in Tarano in the autumn of 1941.
Note she is now camuflaged.


The Doria returning to port on Dec. 18, 1941, following the first Battle of Sirte. The camouflage pattern is identical, port and starboard.


The Doria at sea in May 1942, showing off a new camouflage scheme.


Doria in Tarano, on Aug. 23,1959 in a disarmed state.


CAIO DULIO


CAIO DUILIO


Duilio down by the bow and grounded, following the attack on the Tarano.


Duilio in the summer of 1941, now in camouflage.


The liner Victoria, part of a convoy to Libya (Convoy T.18), seen from the bow of Duilio, one of the escorts on Jan. 23,1942.


Duilio in Jan, 1945, moored i nTarano, flying the flag of the Commander in Chief.


Duilio maneuvering in the port of Naples on Sept. 13, 1948.
Note the paint scheme of light grey upperworks and dark gray hull.


Duilio being scrapped in La Spezia, in 1958.


The outer anchorage (Mar Grande) at Tarano, a few days prior to the suprise attack
by British torpedo planes on the evening of Nov. 11/12, 1940. Five battleships
(among other vessels) are present.
Lesft to right: 1) Cavour, 2) Littorio, 3) Veneto, 4) Cesare, 5) Doria