HMS Heron

HMS Heron (L61) underway off Spithead on January 4th, 1939.

The Egret-class sloops were a four ship class of a long-range escort vessels used in the Second World War by the Royal Navy. They were an enlarged version of the Bittern-class sloops with an extra twin 4 inch gun mounting. They were fitted with Denny Brown stabilizers and the Fuze Keeping Clock anti-aircraft fire control system.


  • Type: Sloop of War
  • Service Period: 1938-1958
  • Characteristics:
    • Length: 276 feet (84.13 meters)
    • Beam: 37 feet 6 inches (11.43 meters)
    • Draught: 8 feet 6 inches (2.59 meters)
    • Displacement: 1,200 tons
  • Crew: 188
  • Propulsion: 2 x 3-drum Admiralty boilers, 2 x Parsons geared steam turbines, 2 x shafts, 3,600 hp (2.68 MW)
  • Range:
  • Speed: 19.25 knots (35.65 km/h)
  • Sensor Suite:
    • Fuze Keeping Clock Anti-aircraft Fire Control System
  • Armament:
    • 8 x QF 4"/45-caliber Mk.XVI dual purpose naval guns (4x2)
    • 4 x .5-inch Vickers Mk.III machine guns

Unit RunEdit

  • HMS Heron (L61)
  • HMS Auckland (L68)
  • HMS Egret (L75)
  • HMS Pelican (L86)

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