Netherlands
24 cm/40 (9.45")
Updated 27 August 2006

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A Krupp gun used on Coastal Defense Ships.  Bore length was 37.15 calibers.  At least two guns were used by the Germans in coastal defense batteries located in the Netherlands.

. Looking for a Photograph .

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Gun Characteristics .

Designation	24 cm/40 (9.45")
Ship Class Used On	Jacob van Heemskerck and Hertog Hendrik
Date Of Design	about 1900
Date In Service	1902
Gun Weight	24.1 tons (24.5 mt)
Gun Length oa	378 in (9.600 m)
Bore Length	351 in (8.916 m)
Rifling Length	N/A
Grooves	N/A
Lannds	N/A
Twist	N/A
Chamber Volume	N/A
Rate Of Fire	about 2 rounds per minute

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Ammunition .

Type	Bag
Projectile Types and Weights	AP - 375 lbs. (170 kg) HE - 375 lbs. (170 kg)
Bursting Charge	N/A
Projectile Length	N/A
Propellant Charge	N/A
Muzzle Velocity	Ships:  2,690 fps (820 mps) As coastal defense:  2,559 fps (780 mps)
Working Pressure	N/A
Approximate Barrel Life	N/A
Ammunition stowage per gun	N/A

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Range .

Elevation	With 375 lbs. (170 kg) AP Shell
Range @ 20 degrees	about 16,000 yards (14,630 m)

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Mount / Turret Data .

Designation	Single Turrets    Jacob van Heemskerck (2) and Hertog Hendrik (2)
Weight	194.3 tons (197.4 mt)
Elevation	-4 / +20 degrees
Elevation Rate	N/A
Train	about +120 / -120 degrees
Train Rate	N/A
Gun recoil	N/A
Loading Angle	N/A

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Data from
"Naval Weapons of World War Two" by John Campbell