AGAMEMNON Underway – Clear news on the construction of our nuclear submarines is often lost in the natural security of both the MoD and BAE and thus it is good to report a £ 2 million contract which has been awarded to Chesterfield Special Cylinders of Sheffield who will supply the high pressure gas cylinders for the sixth ASTUTE Class submarine  cylinders for AGAMEMNON.     The cylinders are critical to a number of vital operations within the vessel, including breathing gas storage, hydraulic and valve actuation back up, ballast operation and missile launch systems. Chesterfield Special Cylinders has been supplying high pressure gas storage cylinders for Royal Navy ships and submarines since the 1930s.