HMSML Gleaner (H86) is the smallest commissioned vessel in the Royal Navy with a length of just under 15 metres and a ship's company of just 9 (2 officers, 1 Senior Rating and 6 Junior Ratings). She was based in Devonport, Plymouth. The ship prefix "HMSML" stands for Her Majesty's Survey Motor Launch.History
She was the sixth ship to bear the name Gleaner and was commissioned on 5 December 1983. With a top speed of 14 knots (26 km/h; 16 mph), Gleaner was designed to conduct inshore surveys along the south coast of England, though she has surveyed all around the coastline of Great Britain and visited various ports in Europe.
As an advanced survey vessel, Gleaner possessed an array of sophisicated technology, including multibeam and sidescan sonar to collect bathymetry and seabed texture data and compile an accurate and detailed picture of the seabed for later analysis. Her survey equipment also includes an Applanix POS MV system for georeferencing and motion compensation, C-NAV GPS, Kongsberg EM3002 Multibeam Echo Sounder and Kongsberg EA400 Singlebeam Echo Sounder.
Gleaner also has the unique distinction of being one of a handful of Royal Navy ships to have visited landlocked Switzerland, having travelled up the Rhine to Basle in 1988. Earlier visits were by HMS Flintham and Dittisham in 1969, and HMS Sabre and Cutlass in 1979.
1. HMSML Gleaner (H86) Commissioned: 1983. Paid Off: 30th January 2018. Decommissioned: 16th February 2018.Displacement:
2 × Volvo Penta TAMD 122 P-A diesel enginesSpeed:
14 knots (16.1 mph; 25.9 km/h)Crew Complement:
9 (2 Officers, 1 Senior Rate, 6 Junior Rates)Notes:
She uses multibeam and sidescan sonar to collect accurate data about the texture of the seabed. She is used in the shallowest of inshore waters.