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RD1 group minesweepers (1916 - 1926)


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RD7 1940  

Ships


Name No Yard No Builder Laid down Launched Comp Fate
RD1     Arsenale di Castellamare di Stabia 2/1916 7/5/1916 12/1916 stricken 3/1921
RD2     Arsenale di Castellamare di Stabia 2/1916 1/6/1916 12/1916 capsized 16/7/1919
RD3     Arsenale di Castellamare di Stabia 2/1916 16/7/1916 12/1916 stricken 3/1921
RD4     Arsenale di Castellamare di Stabia 2/1916 27/8/1916 1/1917 sunk 29/1/1943
RD5     Arsenale di Castellamare di Stabia 2/1916 17/9/1916 2/1917 stricken 3/1921
RD6     Arsenale di Castellamare di Stabia 3/1916 26/10/1916 2/1917 to Yugoslavia 8/1947 (МЛ301 [ML301])
RD7     Tosi, Taranto 5/1916 28/9/1916 3/1917 sunk 15/6/1942
RD8     Tosi, Taranto 6/1916 17/12/1916 6/1917 stricken 3/1921
RD9     Tosi, Taranto 9/1916 2/2/1917 7/1917 captured by Germany 9/9/1943 (M1226)
RD10     Tosi, Taranto 9/1916 23/3/1917 8/1917 sunk 29/10/1918
RD11     Tosi, Taranto 11/1916 31/5/1917 10/1917 wrecked 1931
RD12     Tosi, Taranto 12/1916 2/7/1917 10/1917 sunk 2/5/1943
RD13     Poli, Chioggia 8/1916 2/7/1917 4/1918 scuttled 9/9/1943
RD14     Poli, Chioggia 8/1916 1917 --- capsized incomplete 3/1/1918
RD15     Arsenale di Castellamare di Stabia 7/1916 14/12/1916 3/1917 stricken 3/1921
RD16     Arsenale di Castellamare di Stabia 8/1916 29/3/1917 4/1917 abandoned 23/7/1943, to Yugoslavia 8/1948 (МЛ302 [ML302])
RD17     Arsenale di Castellamare di Stabia 9/1916 22/4/1917 5/1917 captured by Germany 9/9/1943 (M1227)
RD18     Arsenale di Castellamare di Stabia 11/1916 17/5/1917 5/1917 sunk 5/5/1943
RD19     Arsenale di Castellamare di Stabia 12/1916 10/6/1917 6/1917 stricken 3/1921
RD20     Arsenale di Castellamare di Stabia 2/1917 14/7/1917 8/1917 sunk 11/4/1943
RD21     Arsenale di Castellamare di Stabia 7/1917 26/11/1917 1/1918 to Yugoslavia 8/1948 (МЛ303 [ML303])
RD22     Arsenale di Castellamare di Stabia 8/1917 31/12/1917 2/1918 sunk 25/10/1943
RD23     Arsenale di Castellamare di Stabia 10/1917 21/1/1918 2/1918 sunk 5/5/1943
RD24     Arsenale di Castellamare di Stabia 11/1917 4/3/1918 3/1918 capsized 18/2/1943
RD25     Arsenale di Castellamare di Stabia 12/1917 4/4/1918 5/1918 abandoned 16/8/1943, to Yugoslavia 8/1948 (МЛ304 [ML304])
RD26     Arsenale di Castellamare di Stabia 12/1917 15/5/1918 6/1918 captured by Germany 9/9/1943 (M1228)
RD27     Tosi, Taranto 10/1917 16/9/1918 10/1918 to Yugoslavia 8/1948 (МЛ305 [ML305])
RD28     Tosi, Taranto 12/1917 18/7/1918 12/1918 to Yugoslavia 9/1948 (МЛ306 [ML306])
RD29     Tosi, Taranto 2/1918 28/8/1918 1/1919 to Yugoslavia 9/1948 (МЛ307 [ML307])
RD30     Tosi, Taranto 3/1918 22/10/1918 2/1919 sunk 26/12/1942
RD31     Arsenale di Castellamare di Stabia 4/1918 30/12/1918 1/1919 sunk 20/1/1943
RD32 1953- M5332   Arsenale di Castellamare di Stabia 4/1918 8/2/1919 2/1919 discarded 6/1956
RD33     Arsenale di Castellamare di Stabia 6/1918 20/3/1919 4/1919 capsized 22/1/1943
RD34 1953- M5334   Arsenale di Castellamare di Stabia 12/1918 12/5/1919 7/1919 discarded 6/1956
RD35     Arsenale di Castellamare di Stabia 2/1919 17/7/1919 8/1919 captured by Germany 13/9/1943 (M1229)
RD36     Arsenale di Castellamare di Stabia 3/1919 11/8/1919 11/1919 sunk 20/1/1943
RD37     Arsenale di Castellamare di Stabia 5/1919 2/10/1919 2/1920 sunk 20/1/1943
RD38     Arsenale di Napoli 5/1919 28/8/1919 7/1921 sunk 18/5/1943
RD39     Tosi, Taranto 1/1918 27/7/1919 11/1919 sunk 20/1/1943
RD40 1953- M5340   Tosi, Taranto 11/1918 16/10/1919 3/1920 discarded 4/1955
RD41 1953- M5341   Tosi, Taranto 1/1919 12/12/1919 3/1920 discarded 1/1953
RD42     Tosi, Taranto 3/1919 5/2/1920 5/1920 sunk 5/5/1943
RD43     Tosi, Taranto 6/1919 12/4/1920 7/1920 capsized 22/1/1943
RD44     Tosi, Taranto 10/1919 6/6/1920 10/1920 sunk 5/5/1943
RD45     Pattison, Napoli 8/1918 3/4/1920 7/1920 stricken 11/1921
RD46     Pattison, Napoli 8/1918 29/5/1920 8/1920 discarded 3/1923
RD47     Pattison, Napoli 10/1918 30/8/1920 2/1921 discarded 3/1923
RD48     Pattison, Napoli 10/1918 26/1/1921 4/1921 discarded 3/1923
RD49     Pattison, Napoli 6/1919 24/11/1921 3/1922 captured by Germany 9/9/1943 (TR106)
RD50     Cerusa, Voltri 12/1917 21/6/1919 8/1919 stricken 11/1921
RD51     Cerusa, Voltri 1/1918 9/10/1919 1/1920 discarded 2/1922
RD52     Cerusa, Voltri 1/1918 9/2/1919 3/1920 stricken 11/1921
RD53     CNR, Palermo 1918 --- --- cancelled 1919
RD54     CNR, Palermo 1918 --- --- cancelled 1919
RD55     Migliardi, Savona 11/1918 16/2/1923 7/1925 sunk 25/5/1943
RD56     Migliardi, Savona 11/1918 14/3/1923 10/1925 sunk 9/1/1943
RD57     Migliardi, Savona 1/1919 6/3/1923 11/1926 sunk 5/5/1943


Technical data


Displacement normal, t

RD1 - 6, 13, 14: 196

RD7 - 12: 216

RD15 - 26: 201

RD27 - 30, 38: 200

RD31 - 37: 207

RD39 - 44: 203

RD45 - 49, 55 - 57: 212

RD50 - 52: 302

Displacement full, t 
Length, m

RD1 - 6, 13 - 20: 35.3

RD7 - 12, 55 - 57: 35.5

RD21 - 37, 39 - 44: 36.5

RD38: 36.0

RD45 - 49: 38.0

RD50 - 52: 34.0

Breadth, m

RD1 - 44, 55 - 57: 5.80

RD45 - 49: 6.00

RD50 - 52: 7.20

Draught, m

RD1 - 26, 38: 2.10

RD27 - 30: 2.00

RD31 - 37, 39 - 44, 55 - 57: 2.20

RD45 - 49: 1.90

RD50 - 52: 2.50

No of shafts

1

Machinery

1 VTE, 1 boiler

Power, h. p.

RD1 - 6, 13 - 20: 800

RD7 - 12: 1000

RD21 - 26: 880

RD27 - 30: 970

RD31 - 37: 860

RD38: 820

RD39 - 44: 750

RD45 - 49: 810 - 1150

RD50 - 52: 590

RD55 - 57: 870

Max speed, kts

RD1 - 6, 13, 14, 21 - 26, 31 - 37: 13

RD7 - 12, 15 - 20, 27 - 30, 39 - 44: 14

RD38: 12

RD45 - 49, 55 - 57: 12.5

RD50 - 52: 10

Fuel, t

coal

Endurance, nm(kts)

RD1 - 6: 630(12)

RD7 - 12: 750(14)

RD13, 14: 760(12.5)

RD15 - 20: 600(12)

RD21 - 26: 650(11)

RD27 - 20: 760(13)

RD31 - 37: 660(10.5)

RD38, 55 - 57: 700(11)

RD39 - 44: 700(12.5)

RD45 - 49: 740(12)

RD50 - 52: 620(10)

Armament

1 x 1 - 76/40 A1916 or A1917 or An1916 or An1917, 2 x 1 - 6.5/115, mechanical minesweeping gear

Complement

22



Standard scale images


<i>RD18</i> 1940
RD18 1940


Graphics


<i>RD7</i> 1940  
RD7 1940  


Ship project history


Tugs-minesweepers. Suffered from low stability and bad seaworthiness. Wooden hulls.

Modernizations


1920s, RD7: - 1 x 1 - 76/40; + 1 x 1 - 76/50 Vickers 1909.

Naval service


Incomplete RD14 capsized and sunk 3/1/1918 between Porto Corsini and Ancona under tow for completion. RD11 was sunk by mine 29/10/1918 off Cape Rodoni. RD2 capsized 16/7/1919 off Ancona. RD11 grounded in 1931 near Porto Palo (Sicily). RD7 was sunk 15/6/1942 in Saronic Gulf by mine or submarine torpedo. RD30 was bombed 26/12/1942 at Bizerta by Allied aircraft. RD56 was sunk 9/1/1943 at Bizerta by Allied aircraft, salvaged and again sunk by aircraft 24/3/1943 at the same place. RD31, RD36, RD37 and RD39 were sunk 20/1/1943 off Zuara by British destroyers Kelvin and Javelin. RD33 and RD43 capsized 22/1/1943 in the Gulf of Tunis. RD4 was bombed by Allied aircraft in "The Narrows" 29/1/1943. RD24 capsized 18/2/1943 W of Sicily. RD20 was sunk 11/4/1943 by Allied aircraft at Trapani. RD12  was sunk by Allied aircraft 2/5/1943 off Cape Bon. RD18, RD23, RD42 and RD57 were sunk 5/5/1943 at La Goulette (Tunisia) by Allied bombs. RD44 was sunk 5/5/1943 by Allied aircraft off Bizerta. RD38 was sunk 18/5/1943 at Trapani by Allied aircraft. RD55 was sunk 25/5/1943 off Messina by Allied aircraft. RD16 abandoned 23/7/1943 at Trapani in damaged condition, later repaired and transferred to Yugoslavia in August, 1948 as ML302. RD25 was abandoned 26/8/2943 near Messina, salvaged in 1945 and transferred to Yugoslavia as ML304. RD9, RD17 and RD26 were abandoned 9/9/1943 at Piraeus and captured by Germans. RD13 was scuttled 9/9/1943 at Viareggio. RD49 was captured by Germans 9/9/1943 at La Spezia and scuttled in 1945. RD35 was captured by Germans 13/9/1943 at Syra (Aegean). RD22 was mined off Brindisi 25/10/1943.