28 cm/45 (11") SK L/45

History

"These guns were used to arm Germany's first "Dreadnought" type battleships and battlecruisers. The battlecruiser Von der Tann used these weapons to sink HMS Indefatigable at the Battle of Jutland (Skagerrak).

During World War II these guns were used only as coastal artillery. They were then supplied with a lighter shell with a larger propellant charge for increased range.

Constructed of A tube, two layers of hoops and a jacket. Used the Krupp horizontal sliding wedge breech block.

All German 28 cm guns had an actual bore diameter of 28.3 cm (11.1")."

Gun Characteristics

Designation	28 cm/45 (11") SK L/45
Date of Design	1907
Date of Service	1909
Gun Weight	About 39,800 kg
Gun Length Overall	12.735 m
Bore Length	12.006 m
Rifling Length	9.699 m
Grooves	2.8 mm D x 6.92 mm W
Chamber Volume	150 dm^3
Rate of Fire	3 rounds per minute

Used on

• Battleship Nassau
• Battleship Vonn der Tann