Germany
10.5 cm/55 (4.1") SK C/28
Updated 04 June 2011
The first post-World War I naval gun developed by Germany.  A good weapon for its size but considered to be somewhat heavy for a hand-worked mount.  Most of the Torpedo Boats had these guns replaced by the 10.5 cm/45 (4.1") SK C/32 in the 1930s, but Jaguar still carried them as late as 1944.

Some of these guns were bored out and became the early models of the 12.7 cm/45 (5") SK C/34.
WNGER_41-55_skc28_Leopard_pic.jpg

Torpedo Boat Leopard
Photograph copyrighted by P.A. Vicary
WNGER_41-55_skc28_Bremse_pic.jpg

10.5 cm gun on Training Ship Bremse
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Gun Characteristics
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Designation 10.5 cm/55 (4.1") SK C/28
Ship Class Used On Bremse and Wolf Classes
Date Of Design 1928
Date In Service 1930
Gun Weight 8,070 lbs. (3,660 kg)
Gun Length oa 226.8 in (5.760 m)
Bore Length 213.8 in (5.431 m)
Rifling Length N/A
Grooves N/A
Lands N/A
Twist N/A
Chamber Volume 513 in3 (8.4 dm3)
Rate Of Fire 15 rounds per minute
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Ammunition
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Type Fixed
Complete Round Weight N/A [probably around 53 lbs. (24 kg)]
Projectile Types and Weights HE - 32.4 lbs. (14.7 kg)
Bursting Charge N/A
Projectile Length 18.1 in (459 mm)
Propellant Charge 11.8 lbs. (5.37 kg) RPC/32 (6.5/3.5)
Muzzle Velocity 3,035 fps (925 mps)
Working Pressure N/A
Approximate Barrel Life N/A
Ammunition stowage per gun 100 rounds
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Range
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Elevation With 32.4 lbs. (14.7 kg) HE Shell
Range @ 30 degrees 18,860 yards (17,250 m)
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Mount / Turret Data
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Designation Single Mounts
   Bremse (4) and Wolf (3):  MPL C/30
Weight  N/A
Elevation -10 / +30 degrees
Elevation Rate Hand operated, only
Train 360 degrees
Train Rate Hand operated, only
Gun recoil N/A
Note:  These guns were removed from Leopard, Luchs and Bremse and replaced with 12.7 cm/45 (5") SK C/34.
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Data from
"Naval Weapons of World War Two" by John Campbell
"German Warships 1815-1945" by Erich Gröner
"Die Geschichte der deutschen Schiffsartillerie" by Paul Schmalenbach
"German Naval Guns:  1939 - 1945" by Miroslaw Skwiot
"German Warships of World War II" by J.C. Taylor
Page History

10 May 2006 - Benchmark
04 June 2011 - Minor updates