She was finally withdrawn and scrapped by Dover Industries Ltd at Dover Eastern Docks in 1952. For the next three years she operated excursions from Bournemouth in the summer. After refitting at Thorneycroft’s yard at Northam she was commissioned in the spring as the company’s second Lorna Doone. In January 1949 she was sold to Red Funnel and transferred to Southampton. After the war she was returned in 1946 to her owners to recommence excursion work around the Thames Estuary. Subsequently she was stationed at Dungeness. For Operation Overlord in June 1944 she was stationed at Peel Bank off the Isle of Wight as the Mulberry Accommodation & Dispatch Control Ship. In September 1939 she was requisitioned by the Admiralty for minesweeping duties once more and commissioned as HMS Queen of Kent, pennant number J74. Regular excursions took her to Gravesend, Margate, Clacton and Dover. For the next twelve years she could be found working from Sheerness and Southend. She was sold to The New Medway Steam Packet Company on 12 August 1927 and converted for excursion work on the Medway and Thames. Post war she was transferred to the Mine Clearance Service. For the rest of the war she served with the Auxiliary Patrol. Built by Ailsa Shipbuilding at Troon in Scotland, she was launched on 14 April 1916. HMS Atherstone was a Racecourse-class minesweeper of the Royal Navy. 1762DA).†, Memorial: Chatham Naval Memorial. Kemp, Frederick Robert (46), Skipper. , Memorial: Hull Western Cemetery. 236ES).†, Memorial: Chatham Naval Memorial. Mary’s) ChurchyardĬoultas, Charles (39), Engineman (no. 73/DA).†, Memorial: Hull Western Cemetery.Ĭhristie, William (33), Deck Hand (no. Mary’s) Churchyard.īenson, George Walter, Second Hand (no. 56ES).†, Memorial: Chatham Naval Memorial.īailey, William Alfred, Signalman (no. 8 of the crew were killed.Īngus, Alexander (28), Engineman (no. HMT Ameer was sunk on 18th March 1916 by a mine from the German submarine UC-7, off Felixstowe. With other Harwich sweepers clearing minefield discovered that morning, and in fact laid that morning by UC.1 Sank off the Shipwash Sands, off Orford Ness 9 ratings lost. HMT Agamennon was a admiralty trawler hired in 1914 as minesweeper, No.19, Harwich-based, Skipper Frederick Sibley RNR. By the end of the war, British minesweeping forces comprised 726 vessels including 110 regular naval vessels (mostly Acacia Class, Azalea Class, Arabis Class, Hunt Class and Aberdare Class Fleet Sweeping Sloops), 412 trawlers, 142 drifters, 52 hired paddle steamers and 10 Dance Class ‘Tunnel Tug’ shallow draught minesweepers.Ģ14 British minesweepers had been lost in action while sweeping over 30,000 mines. This was vitally important but extremely dangerous programme in 1917 the paddle steamers alone destroyed around 400 enemy mines.īy 22 Aug, a further 100 trawlers had been commandeered and fitted out. The Harwich Company numbered under 100 trawlers, mine drifters and steamers, manned by 1500 men. Had the important task of clearing enemy mines from the sea routes, and attacking enemy mine-laying submarines, for which they received a prize for every vessel destroyed. Other GER steamers were used as supply and hospitals ships, as well as taking cargo and passengers back and forth to neutral Holland. The “Trawler Reserve” was a combination of fishing vessels manned by fisherman together with GER vessels and Paddle steamers.

% non-linear simplified Volterra diagonals.Sailors operating a Maxim gun, Harwich, 15th April 1918. % inverse swept-sine to produce the linear impulse response and % device under test finally, take the response and process it with the % synthSweep.m first to create the stimulus then pass it through the

% Extracts the impulse response from the swept-sine response. % = extractIR(sweep_response, invsweepfft) % EXTRACTIR Extract impulse response from swept-sine response. % stops at frequency f2 (Hz) and duration T (sec) at sample rate FS (Hz). % generates a logarithmic sine sweep that starts at frequency f1 (Hz), % SYNTHSWEEP Synthesize a logarithmic sine sweep. This method is robust against noise, time variance, and weak nonlinearities. The response is processed to compress the response to an impulse response. This method, known as swept-sine, log-chirp, swept-tone, or sine sweep uses an increasing frequency sinusoid to stimulate an acoustic device under test.

Mine swept