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fighting ships of the world

ROYAL DUTCH NAVY (NETHERLANDS)

CAPITAL SHIPS AND MONITORS

JACOB VAN HEEMSKERCK coast defence ship (1908)

Jacob van Heemskerck 1908

Name No Builder Laid down Launched Comp Fate
Jacob van Heemskerck, 4/1939- Ijmuiden   Rijkswerf Amsterdam 15/8/1905 22/9/1906 22/4/1908 scuttled 14/5/1940

  

Displacement normal, t

4920

Displacement full, t

 

Length, m

98.0 oa

Breadth, m

15.2

Draught, m

5.69 max

No of shafts

2

Machinery

VTE, 8 Yarrow boilers

Power, h. p.

6400

Max speed, kts

16.5

Fuel, t

coal 680

Endurance, nm(kts)

3300(10)

Armour, mm

belt: 150 - 100, bulkheads: 150, deck: 50, main turrets: 100, barbettes: 200 - 100, CT: 195

Armament

2 x 1 - 238/37 Krupp No.2, 6 x 1 - 149/37 Krupp No.5, 6 x 1 - 75/37 Krupp No.1, 4 x 1 - 37/20 Hotchkiss, 2 - 450 TT (beam)

Complement

340

Ship project history: Slightly improved version of Tromp design, continuing a line of Dutch coast defence ships, begun late XIX century from Evertsen class. Jacob van Heemskerck differed from Tromp hardly in the smaller dimensions and presence of two additional 15cm guns amidships.

Ship protection: Armoured belt protected full ship length, 150mm-thick part between main turrets was closed by 150mm bulkheads. Main 50mm deck was connected with upper edge of the belt.

Modernizations: 1929: - 2 x 1 - 149/37.

1939: - 4 x 1 - 149/37, 6 x 1 - 75/37, 4 x 1 - 37/20, 2 - 450 TT; + 2 x 1 - 40/56 Bofors No.4.

Naval service: Jacob van Heemskerck was converted 19/4/1939 to floating battery (Batterijschip) and renamed Ijmuiden. She was partially disarmed. Ijmuiden was scuttled by crew 14/5/1940, raised by Germans 16/7/1940 and subsequently converted to non-self-propelled AA floating battery Undine. Ship was returned in 1945, converted on Amsterdam DYd to barrack ship and commissioned again under name Neptunus 23/2/1948. Ship was disbanded 13/9/1974 and stricken 4/10/1974. Hull was preserved up to now.

Jacob van Heemskerck 1913

Ivan Gogin, 2011-14