843 men died when the battleship HMS Vanguard suffered a series of accidental yet catastrophic cordite explosions in Orkney on 9th July 1917. The site has lain undisturbed since its designation as controlled site in 2002 meaning no diving can take place with out special permission from the UK Ministry of Defence. Over the winter of 2016/2017 a self-funded teams of volunteer divers were granted a license to survey the wreck and debris field. Bringing together expertise in WWI warships, photography, videography, 3D photogrammetry, remote survey, munitions and explosive effects, including serving members of the Royal Navy, to document the ship for the centenary of her loss. The talk will share the story of Vanguard while focusing on the challe...