page_title: QF 6-inch naval gun
section_title: World War I anti-aircraft gun
hierarchical_section_title: QF 6-inch naval gun / UK service / World War I anti-aircraft gun
caption_attribution_description: British QF 6 inch naval gun, on high-angle mounting on railway truck, as anti-aircraft gun. At Prince of Wales Pier, Dover. Cartridge case is visible lying horizontally behind gunlayer's feet (left side of gun). A rope is attached to the barrel for use in manually depressing it. This was necessary because the gun was not designed to be mounted at such a high angle, and hence the gun was unbalanced, necessitating manual intervention to depress the barrel. Additional recuperator cylinders appear to have been added above the barrel, presumably to assist runout at the abnormally high angle.
context_page_description: The QF 6-inch 40 calibre naval gun was used by many United Kingdom-built warships around the end of the 19th century and the start of the 20th century.
  In UK service it was known as the QF 6-inch Mk I, II, III guns.
  As the 15 cm/40 41st Year Type naval gun it was used for pre-dreadnought battleships, armoured cruisers and protected cruisers of the early Imperial Japanese Navy built in UK and European shipyards. It was also the heaviest gun ever carried by a pre-Cold War destroyer.
context_section_description: At least one gun is known to have been mounted by the Royal Navy on an improvised anti-aircraft mounting on a railway truck, defending docks during the First World War.
caption: Anti-aircraft mounting on Prince of Wales Pier, Dover
exif: {"Image XResolution": "300", "Image YResolution": "300", "Image ResolutionUnit": "Pixels/Inch", "Image YCbCrPositioning": "Centered", "Image Copyright": "Imperial War Museums"}