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HUNGARIAN RIVER FLOTILLA (HUNGARY)

RIVER BOATS

PM1 armoured river gunboats (1940-1949)

PM1 1940

PN11 1950

Names

PM1

PM2

PN11 (ex-PM3), later- PN31, 1950s- PN34

PM4 - 6

Builders

Danubius, Budapest: PM1, 2, 4 - 6; PN11

Commissioned

1940: PM1

1949: PN11

Losses

PM2, 4 - 6: sunk incomplete late 1944 (two were completed in 1956 as PN31 and PN32)

PM1 (captured by USA 5.1945)

Transfers

none

Discarding

1973: PN34

 

Displacement standard, t

 

Displacement full, t

38

Length, m

28.0

Breadth, m

3.70

Draught, m

PM1: 0.60

PN11: 1.10

No of shafts

PM1: 3

PN11: 2

Machinery

PM1: 3 Junkers diesels

PN11: 2 Lang MP35 diesels

Power, h. p.

PM1: 480

PN11: 420

Max speed, kts

PM1: 20.5

PN11: 13.5

Fuel, t

diesel oil

Endurance, nm(kts)  

Armour, mm

PM1: belt: 13, deck: 20, turrets: 40, CT: 40

PN11: belt, deck, CT: up to 30

Armament

PM1: 2 x (1 - 40/43 Škoda A17, 2 - 8.3/83), 2 x 1 - 8.3/83

PN11: 2 x 1 - 37/73 70K, 1 x 1 - 82/11 mortar

Complement

16

Project history: Fast shallow-draught armoured motor gunboats, projected and built by Hanz Danubius at Budapest. They were armed by 40mm/45 tank guns in turrets. In each of turrets also two 8mm MGs were placed, two more MGs were installed on movable mounts in aft part of deck house and could fire through one of three loophopes. The armoured citadel defended deck house, magazines and machinery. Complexity of manoeuvring on high speed (when the bow too strongly went out water, covering the view from low deck house) appeared the basic lack of the project.
 Building of 5 more boats was begun in 1942-1943, by late 1944 they remained incomplete, and already launched hulls were scuttled. Only in 1949 salvaged PM3 was commissioned as PN11 in significantly altered kind and Soviet armament. Two more boats were salvaged in the late forties and completed in 1956 under the changed project as PN31 and PN32. All three were written off in 1973.

Ship protection: Bullet-proof protection of the hull and turrets from Turán I tanks.

Modernizations: None.

Naval service: Lead PM1 was 25.11.1944 hard damaged by Soviet artillery at Cepel. In May, 1945 she surrendered to Americans. Till now her hull is used as a hulk at Passau.

PM1

 

© Ivan Gogin, 2009-16