ROYAL NAVY (UNITED KINGDOM)

Names

ML.1 - 580

Builders

Elco, Bayonne, USA: ML.1 - 50

Canadian Vickers, Montreal, Canada: ML.51 - 580

Completed

1915: ML.1 - 550

1918: ML.551 - 580

Losses

ML.18 (29.9.1919), ML.19 (31.1.1916), ML.40 (18.5.1916), ML.52 (29.11.1917), ML.55 (28.1.1918), ML.62 (29.9.1919), ML.64 (10.6.1918), ML.97 (CTL WWI), ML.98, ML.110 (23.4.1918), ML.121 (22.12.1918), ML.127 (CTL WWI), ML.149 (10.9.1916), ML.152 (2.1.1920), ML.191 (29.9.1919), ML.196 (after WWI), ML.197 (31.1.1917), ML.229 (CTL WWI), ML.230 (14.9.1916), ML.247 (29.9.1918), ML.253 (14.9.1916), ML.254 (10.5.1918), ML.255 (14.9.1916), ML.278 (15.1.1918), ML.356 (11.1.1918), ML.403 (22.8.1918), ML.421 (6.4.1918), ML.424 (23.4.1918), ML.431 (22.4.1917), ML.434 (after WWI), ML.474 (23.7.1917), ML.521 (after WWI), ML.534 (13.4.1917), ML.540 (8.6.1917), ML.541 (8.6.1917), ML.561 (21.10.1918), ML.566 (22.12.1918)

Transfers

France 1916 - 1917: ML.38 (V5), ML.114 - 117 (V1 - 4), ML.390 (V6), ML.392 (V7), ML.394 (V8), ML.396 (V9), ML.400 (V10), ML.402 (V11), ML.404 (V12), ML.442 (V13), ML.444 (V14), ML.446 (V15), ML.448 - 454 (V16 - 22), ML.456 (V23), ML.458 - 460 (V24 - 26), ML.462 (V27), ML.464 (V28), ML.469 - 472 (V29 - 32), ML.489 (V33), ML.491 - 493 (V34 - 36), ML.543 - 544 (V37 - 38), ML.547 - 548 (V39 - 40)

Discarding

1919: 200+ boats

1920: 127+ boats

1921: 52 survived

1924: 8 were in commission (ML.8, 287, 291, 307, 339, 473, 519, 542)

1926 - 1927: last 6 were sold

Displacement normal, t

ML.1 - 50: 34

ML.51 - 580: 37

Displacement full, t

Length, m

ML.1 - 50: 22.9

ML.51 - 580: 24.4

Breadth, m

3.74

Draught, m

1.22

No of shafts

2

Machinery

2 petrol engines

Power, h. p.

440

Max speed, kts

19

Fuel, t

petrol

Armament

50 boats: 1 x 1 - 76/23 13pdr 6cwt QF Mk V, 2 DCR, mechanical minesweeping gear

500+ boats: 1 x 1 - 47/40 3pdr Hotchkiss Mk I, 2 DCR, mechanical minesweeping gear

some: 1 x 1 - 47/46 3pdr Bethlehem Mk II, 2 DCR, mechanical minesweeping gear

some: 1 x 1 - 40/37 2pdr QF Mk III, 2 DCR, mechanical minesweeping gear

Complement

8