Chile
8"/40 (20.3 cm) EOC Pattern "P"
8"/40 (20.3 cm) EOC Pattern "T"

Updated 05 January 2008

Elswick guns used on Brazilian cruisers built in Britain.

Wire-wound construction.  Pattern "T" had an actual bore length of 39.94 calibers.
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Gun Characteristics
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Designation 8"/40 (20.3 cm) EOC Pattern "P"
8"/40 (20.3 cm) EOC Pattern "T"
Ship Class Used On Pattern "P" - Blanco Encalada
Pattern "T" - Almirante O'Higgins
Date Of Design N/A
Date In Service 1898
Gun Weight Pattern "P" - 15.39 tons (15.64 mt) including BM
Pattern "T" - 16.54 tons (16.81 mt) including BM
Gun Length oa N/A
Bore Length Pattern "P" - 319.5 in
Pattern "T" - 320.0 in
Rifling Length N/A
Grooves N/A
Lands N/A
Twist N/A
Chamber Volume N/A
Rate Of Fire about 2 rounds per minute
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Ammunition
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Type Bag
Projectile Types and Weights Pattern "P"
   210 lbs. (95.3 kg)

Pattern "T"
   210 lbs. (95.3 kg)
   250 lbs. (113.4 kg)
Bursting Charge N/A
Projectile Length N/A
Propellant Charge N/A
Muzzle Velocity Pattern "P"
   2,242 fps (683 mps)

Pattern "T"
   210 lbs. (95.3 kg) - 2,575 fps (785 mps)
   250 lbs. (113.4 kg) - 2,440 fps (744 mps)
Working Pressure N/A
Approximate Barrel Life N/A
Ammunition stowage per gun N/A
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Mount / Turret Data
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Designation Single Guns
   Blanco Encalada (2)
   Almirante Higgins (4)
Weight  N/A
Elevation -5 / +15 degrees (?)
Elevation Rate N/A
Train about +150 / -150 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