picture of this weapon?
The Mark VI was an Elswick gun of Pattern "S" originally built for Chile. The Mark X was a single Elswick gun of Pattern "Q" similar in design and performance to the Mark VI. The Mark X was probably never used afloat.
Mark VI constructed of A tube, breech piece and B tube, wire over the breech piece, full length jacket, breech ring and breech bush screwed into the breech piece. Used a screw breech block whose design was similar to that for the QF Mark III. A total of 29 Mark VI guns were manufactured.
|Designation||4"/40 (10.2 cm) QF Mark VI|
|Ship Class Used On||Britain: Broke class, Swordfish and Mimosa
Chile: Almirante Lynch class (ex-Broke class)
|Date Of Design||N/A|
|Date In Service||about 1914|
|Gun Weight||1.297 tons (1.41 mt)|
|Gun Length oa||165.1 in (4.194 m)|
|Bore Length||about 160 in (4.064 m)|
|Chamber Volume||240 in3 (3.933 dm3)|
|Rate Of Fire||about 15 rounds per minute|
|Projectile Types and Weights||HE: 31 lbs. (14.06 kg)|
|Propellant Charge||5.0 lbs. (2.27 kg) MD16|
|Muzzle Velocity||2,300 fps (701 mps)|
|Approximate Barrel Life||N/A|
|Ammunition stowage per gun||N/A|
|Elevation||-5 (?) / +25 degrees|
|Elevation Rate||Manually operated, only|
|Train Rate||Manually operated, only|
- "British Naval Guns 1880-1945 No 18" article by John Campbell in "Warship Volume X"
- 25 March 2008
- 12 February 2012
- Updated to latest template