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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  


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.