ARA Catamarca (BB-1914) ex-Konig Class

 

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The two ex-Konig Class and the two Rivadavia Class battleships were to be the main units of the Battlefleet from 1922 through to 1938. The Konig class, with their 8x13.75" guns, had proved a very good investment. Though only eight guns, the broadside was superior to the 10 gun Kaiser class and even better than the other 11"/12" Dreadnoughts that had found their way into the Argentine Navy. The only equal they had in South American waters was the 15" gunned Riachuello class in the Brazilian Navy.




Displacement: 26,200 tons normal displacement, 28,000 tons full load
Dimensions: 575 x 97 x 30 feet
Machinery: 3 shaft turbines, 44,000shp
Speed: 22 knots
Endurance: 7,500 nmi at 12 knots
Armour: 350mm (13.75") belt, 30mm (1.2") deck, 330mm/210mm/150mm turrets
Armament:
8 x 13.75" (4x2)
14 x 5.9" (14x1)
10 x 88mm AA (10x1)
Torpedoes: 6 x 500mm (6x1 underwater)
Crew: 1150 (1210 as Flagship)



Like most nations with older Dreadnought battleships, a timeline was worked out to renovate these ships, that would not impact on the fleets strength too much. This had to be done as a lot of the new build ships were dependant on the 12" guns being removed from the older ships to provide their new main armament. The two ships of the Konig class were taken in hand 1935 and 1936, returning to the fleet 18 months later.



Displacement: 27,500 tons normal displacement, 28,000 tons full load
Dimensions: 587 x 97 x 30 feet
Machinery: 3 shaft turbines, 60,000shp
Speed: 24 knots
Endurance: 7,500 nmi at 12 knots
Armour: 350mm (13.75") belt, 130mm (5.1") deck, 330mm/210mm/150mm turrets
Armament:
8 x 13.75" (4x2)
16 x 88mm (8x2)
8 x 37mm AA (4x2)
10x20mm (2x4, 2x1)
Crew: 1150 (1210 as Flagship)

 
Original 10x12" armed drawings.



As completed:

Displacement:
  • 25,390 tons normal
  • 28,600 tons full load
Length: 175.4 m (575 ft 6 in)
Beam: 29.5 m (96 ft 9 in)
Draft: 9.19 m (30 ft 2 in)
Propulsion:
  • 3 shaft Parsons turbines
  • 42,708 shp
Speed: 21.2 knots
Range: 8,000 nmi (15,000 km) at 12 knots
Complement: 1,136
Armament:
  • 10 12" (5x2)
  • 14 5.9" (14x1)
  • 10 88mm (10x1)
  • 5 50 cm (19.7 in) torpedo tubes submerged
Armor:
  • Belt: 350 mm (14 in)
  • Turrets and conning tower: 300 mm (12 in)
  • Deck: 30 mm (1.2 in)



1935 and the two ships were showing their age. Either they would be refurbished at the Bahia Blanca Naval Yards or scrapped for useful parts. The two ships were to be refurbished as they were to be a part of the Las Malvinas convoy covering force. The refurbishment followed the lines of the earlier dreadnoughts with new superstructure. The removal of Q turret to provide space for an enhanced AA armament. The removal of the 5.9" and the plating in of the main deck area. This removal of the 5.9" allowed topweight and magazine space for the 88mm twin turrets that formed the dual purpose armament. Thought was given to replacing the boilers and engines but the ships had never had a very active life in either German or Argentinian service and were more than adequate for the role the ships were to undertake. This was cheaper and quicker too.



As well as the changes noted above, the submerged torpedo tubes were removed as well. The deck armour was considered under strength and while the main deck was available, the armour was increased to 128mm (5").

As rebuit:

Displacement: 25,600 standard, 29,500 tons full load.
Dimensions: 575 x 97 x 30 feet
Machinery: 3 shaft, steam turbines, 43,000shp,
Speed: 21 knots
Endurance: 8,000 miles at 12 knots
Armour: 350mm belt, 128mm deck, 300mm turrets
Armament:
8 x 12" (4x2)
16 x 88mm (8x2)
8 x 37mm (4x2)
22 x 20mm (4x4, 6x1)
Aircraft: Nil
Crew: 1200



 

 

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