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ARGENTINA
OTHER FIGHTING SHIPS
ROSARIO armoured river gunboats (1909)


Photo



Paraná 1918

Ships


Name No Yard No Builder Laid down Launched Comp Fate
Rosario   811 Armstrong, Tyne, UK 8.1907 27.7.1908 6.1909 stricken 7.1959
Paraná   812 Armstrong, Tyne, UK 9.1907 28.4.1908 6.1909 stricken 9.1956


Technical data


Displacement normal, t709
Displacement full, t1055
Length, m

73.1 pp 76.4 oa

Breadth, m

9.80

Draught, m

2.13 normal 4.30 max

No of shafts

2

Machinery

2 VTE, 2 Yarrow boilers

Power, h. p.

1300

Max speed, kts

14.5

Fuel, t

coal 160

Endurance, nm(kts)1000(8)
Armour, mmbelt: 76, bulkheads: 38, magazines: 51, deck: 25, CT: 76
Armament

2 x 1 - 152/13 howitzers, 6 x 1 - 76/40 Armstrong N, 8 x 1 - 7.7/94

Complement

145



Standard scale images


<i>Rosario </i>1940
Rosario 1940
<i>Rosario </i>1955
Rosario 1955
<i>Paraná </i>1918
Paraná 1918


Graphics


<i>Paraná </i>1952 <i>Many thanks to Wolfgang Stöhr for additional information on this page.</i>
Paraná 1952 Many thanks to Wolfgang Stöhr for additional information on this page.
<i>Paraná</i> 1918
Paraná 1918


Project history

Armoured shallow-draught gunboats, original "argument" of Argentina in dispute on internal river borders with Brazil and Uruguay. Intended for patrol on frontier rivers Parana and Uruguay and supports of troops ashore in case of the conflict. Competition on building, declared by Argentina government in 1905, was benefited by Armstrong, the contract was concluded in June, 1907. Cost of one ship was 81445£

Gunboats had hull with a forecastle and a poop and ram. Freeboard height amidships was 2m. On trials Parana made 15kts, Rosario 15.25kts.

Ship protection

Protection was ensured by Krupp-steel belt, covering only machinery and closed by 38mm bulkheads; magazines were protected by 51mm nickel-steel armour.

Modernizations

early 1930s, both: + 2 x 1 - 40/39 2pdr QF Mk II

late 1940s, both: + 2 x 1 - 40/39 Mk VIII

Naval service

No significant events.