Spanish OOB32 and OOB33 v.11 (2018)

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Originally Posted by Pibwl

156 210mm Canon, - no mention on such antique pieces ...

http://www.amonio.es/mortero_mata_21cm.htm

they were used by the national side in the autumn of 1936 to cover their right flank while advancing towards Madrid. Apparently they came from the 1st Costa de Cádiz Regiment that were located in the Isla de las Palomas, as a defense of Costa (Excerpted from the book by Artemio Mortera and José Luis Infiesta "The Artillery in the Civil War. Campaign, Quiron Ediciones ").

These mortars were emplaced in November 1936 next to the town of Toledo Mocejón, and near there, precisely, is where the copy of the photograph has been located.

Apparently, the Republican side had several copies of this mortar, one of them in Madrid and four in San Sebastian, which were captured by the nationals to conquer the city.

TECHNICAL CHARACTERISTICS:
Caliber 21 centimeters
Cannon length: 1633 millimeters
Length of the anima: 1150 millimeters
Number of stripes: 50 to destrorsum
Cannon weight: 815 kilograms
Weight of the product: 830 kilograms
Closure: Three smooth sectors and three threaded.
Reach: 3890 meters
Initial speed: from 85.3 to 215 meters (depending on load)
Projectile: The same as the Plasencia Obed of 21 cm.
Projectile Weight: 78.7
Height: 620 mm