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BRINIO gunboats (1912-1913)


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Gruno 1940

Ships


Name No Yard No Builder Laid down Launched Comp Fate
Brinio     Rijkswerf Amsterdam 10.1911 12.8.1912 9.1914 scuttled 14.5.1940
Friso     Rijkswerf Amsterdam 11.1911 29.8.1912 7.1915 sunk 12.5.1940
Gruno F81   Rijkswerf Amsterdam 2.1912 26.5.1913 7.1915 minesweeper depot ship 5.1944


Technical data


Displacement standard, t

Brinio: 545

Friso: 530

Gruno: 533

Displacement full, t

Brinio: 634

Friso: 573

Gruno: 581

Length, m

52.7

Breadth, m

8.52

Draught, m

2.75 max

No of shafts

2

Machinery

Brinio: 2 diesels

Friso: 2 Werkspoor diesels

Gruno: 2 MAN / Smit diesels

Power, h. p.

1200

Max speed, kts

14

Fuel, t

diesel oil 34

Endurance, nm(kts)

1440(6)

Armour, mmbelt: 55, bulkheads: 55, deck: 17, shields: 50, CT: 50
Armament

4 x 1 - 105/47 Krupp Nr.2, 2 x 1 - 12.7/90

Complement

52



Standard scale images


<i>Friso</i> 1918
Friso 1918
<i>Brinio</i> 1933
Brinio 1933


Graphics


<i>Gruno</i> 1940
Gruno 1940


Project history

Small shallow-draught gunboats projected for needs of coast defence of mother country: in particular, for support of torpedo boats attacks and protection of minefields. The original project, differing presence of a narrow belt protected approximately 70% of hull length. They received very unreliable diesels that has compelled in further them to change. To the Second World War beginning gunboats were considered become outdated, especially in view of absence of air defence weapons.

Ship protection

Citadel was protected by 55mm belt, closed by 55mm transverse bulkheads at ship ends. 17mm deck was connected with upper edge of the belt. Gun shields had 50mm faces, 20mm sides and 25mm roofs.

Modernizations

1917, Gruno: diesels were replaced by 2 6-cyl 2-stroke Germania (1500hp, 14kts)

1928, Friso: diesels were replaced by 2 6-cyl 4-stroke MAN (1500hp, 14kts)

1932, Brinio: diesels were replaced by 2 6-cyl 2-stroke Sulzer (1500hp, 14kts)

1941, Gruno: + 2 x 1 - 40/39 QF Mk VIII, 2 DCR

Naval service

Friso 12.5.1940 was damaged by German aircraft and sunk by gunfire of minesweeper Peter Florisz at Stavoren; wreck was raised 15.3.1943 and handed over on demolition. Brinio 12.5.1940 was damaged by German aircraft at Ijmuiden and 14.5.1940 scuttled by crew; wreck was raised by Germans 12.10.1942 and broken up. Gruno in May, 1940 escpaped to UK and laid up into reserve in March, 1942; she was commissioned again 23.11.1942, again laid up 16.5.1944 and up to an exception from fleet list in January, 1950 was used as minesweeping boat depot ship.