NAVYPEDIA

Photo

Lamotte-Picquet 1929

Ships

Name	No	Yard No	Builder	Laid down	Launched	Comp	Fate
Duguay Trouin			Arsenal de Brest	4.8.1922	14.8.1923	10.9.1926	FNFL 7.1943, stricken 3.1952
Lamotte-Picquet			Arsenal de Lorient	17.1.1923	21.3.1924	1.10.1926	training hulk 9.1942, sunk 12.1.1945
Primaguet			Arsenal de Brest	10.8.1923	21.5.1924	1.9.1926	beached 8.11.1942

Technical data

Displacement standard, t	7249
Displacement full, t	9350
Length, m	175.3 pp 181.6 oa
Breadth, m	17.2
Draught, m	5.20 full load
No of shafts	4
Machinery	4 sets Parsons geared steam turbines, 8 Guyot du Temple boilers
Power, h. p.	100000
Max speed, kts	33
Fuel, t	oil 1500
Endurance, nm(kts)	4500(15)
Armour, mm	deck: 20, turrets: 25, CT: 25, citadel (magazines and steering gear): 20
Armament	4 x 2 - 155/50 M1920, 4 x 1 - 75/50 M1922, 4 x 3 - 550 TT (24)
Complement	578

Standard scale images

Graphics

Project history

First large ships built in France after First World War, built under the 1922 programme. They became first-ever light cruisers with artillery placed in superfiring closed turrets. Practically had no serious armour protection. Partly its absence was indemnified by a double bottom and presence of 16 transverse bulkheads. Differed by strong torpedo armament.

On trials all reached designed speed at full load. Differed by good seaworthiness, to lacks it is possible to refer short endurance, especially on the high speed.

Ship protection

Magazines and steering gear had box-shaped 20mm protection. There was no belt.

Modernizations

1927, all: + 1 catapult, 2 seaplanes (Besson 35 or F.B.A.17)

early 1930s, all: + 6 x 2 - 13.2/76

1937, Primaguet: - 6 x 2 - 13.2/76; + 2 x 1 - 25/60 M1938, 4 x 4 - 13.2/76

1942, Primaguet: - 2 x 3 - 550 TT

10/1943, Duguay Trouin: - 4 x 2 - 13.2/76, 4 x 3 - 550 TT, catapult with seaplanes; + 2 x 1 - 13.2/94

1/1944, Duguay Trouin: - 2 x 2 - 13.2/76; + 6 x 1 - 40/56 Mk 1.2, 20 x 1 - 20/70 Mk 4, 2 x 1 - 13.2/94, SF-1 radar

late 1945, Duguay Trouin: - 2 x 1 - 20/70, 2 x 1 - 13.2/94; + SA radar

Naval service

Duguay Trouin was a part of Force "X" and was disarmed at Alexandria in July, 1940, since July, 1943 served with the Allies. After war till 1952 she was used as depot ship. Lamotte-Picquet was the largest French ship in Indo-China. She was laid up at Saigon in September, 1942 and used as training hulk. Cruiser was bombed in Cam Ranh Bay by USN carrier aircraft (TF38.2) 12.1.1945. Primauguet also remained under the control of Vichy. During Allied landing to Casablanca she was hard damaged by gunfire of American cruisers and  SBD carrier diving bombers, ran aground and became a total loss.