"Ya-6" type motor mortar boats (Ya-20) (1943

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"Ya-6" type motor mortar boats (Ya-20) (1943 - 1944)

Ships

Names	Builders	Commissioned	Losses	Transfers	Discarding
Ya-6: MK-36; MK-37 Ya-6M: Я-20 - 24 [Ya-20 - 24], 1.1945- MK-20 - 24 Я-31 [Ya-31], 1.1945- MK-31	345 Yd, Yaroslavl: MK-36, 37, Ya-20-24, 31	1943: Ya-20 - 24, 31 1944: MK-36, 37	none	none	1947 - 1948: MK-20 - 24, 31, 36, 37

Names

Builders

Commissioned

Losses

Transfers

Discarding

Ya-6:

MK-36; MK-37

Ya-6M:

Я-20 - 24 [Ya-20 - 24], 1.1945- MK-20 - 24

Я-31 [Ya-31], 1.1945- MK-31

345 Yd, Yaroslavl: MK-36, 37, Ya-20-24, 31

1943: Ya-20 - 24, 31

1944: MK-36, 37

none

1947 - 1948: MK-20 - 24, 31, 36, 37

Technical data

Displacement standard, t	19
Displacement full, t	23
Length, m	19.8
Breadth, m	3.40
Draught, m	1.00
No of shafts	1
Machinery	Ya-6 type: 1 Cummings diesel Ya-6M type: 1 Chrysler petrol engine
Power, h. p.	Ya-6 type: 100 Ya-6M type: 93
Max speed, kts	10
Fuel, t	Ya-6 type: diesel oil 1.2 Ya-6M type: petrol 1.2
Endurance, nm(kts)
Armament	2 x 1 - 12.7/79; 1 x 24 - 82 M-8 RL
Complement	10

Standard scale images

Ya-20 1943

Project history

Differed from Ya-5 type by wooden hull and rectangular-shaped deck house. They were equipped with automobile diesel or petrol engine (latter was designated as Ya-6M). There were minesweeper variants (KATShch, KT) or mortar boat (MK).

Modernizations

None.

Naval service