| Description | DM162/10/12/folio/102. Letter to Captain Claxton relating to Floating guns. Model shown to Admiral Berkeley, request for ideas to be clearly represented, not a gun boat but a gun carriage, method of attaching fixed battery with floating battery of heavy protected guns and rifles, speed of positioning, boat of iron and wood shot resistant at oblique angle, mechanical loading, safety of vessel, rapidity of firing, inability of fort such as Cronstadt to resist attach, etc. 29 September 1854.
DM162/10/12/folio 107. Letter to W.G. Armstrong relating to the Large gun. Impact of bodies and recoil of guns, principle of velocities and mass, calculations of shot weight, velocity, gun recoil, practicability of gun, advantage of less shot friction, Armstrong's expanding shot, Brunel's polygonal barrel and Armstrong's cast steel with wire wrapping. 7 January 1855.
DM162/10/12/folio 108. Letter to W. G. Armstrong regarding large gun and floating gun. Enquiry as to manufacture and cost for experiment for floating gun, specifications including cast and wrought iron weights, breach, barrel, mechanical loading, etc. 24 October 1855.
DM162/10/12/folio 110. Letter to Sir Charles Wood relating to the floating gun. Plan submitted to Admiralty given to Lord Palmerston, meeting with latter and recommendation of seeing Wood, enquiry as to meeting appointment. 22 December 1855.
DM162/10/12/folio 110. Letter to Sir John Burgoyne relating to the floating gun. If gun approved possibility of manufacture, recommendation of immediate manufacture and experiments etc., sending of explanation proposed to Admiralty. 27 December 1855. |