Harbour Service vessels
'Chelsea' and 'Richmond'
Built by Ecocats Limited in 2006/07, for use in the PLA's Upper District, following a three-year research programme into wash characteristics in shallow water carried out by the PLA and Southampton University.
The overall length of 10 metres and beam of just under 4 metres gives a large open platform and a spacious island wheelhouse from which the river patrol can provide ready assistance and guidance to rowers, canoeists and other small boat operators. The narrow-beamed hulls and light displacement (3.9 tonnes) cause the least possible resistance, which substantially reduces the power required to achieve normal patrol and emergency response speeds. Due to the vessel's low resistance, the twin Yanmar 36hp diesel outboards provide power for 17 knots, but offer a substantial 67% fuel saving when compared with the former Upper District patrol launches. This fuel economy, together with the solar panels provided to supplement electrical systems onboard, offer savings not only in operating costs but also in emissions of CO2.
The overall length of 10 metres and beam of just under 4 metres gives a large open platform and a spacious island wheelhouse from which the river patrol can provide ready assistance and guidance to rowers, canoeists and other small boat operators. The narrow-beamed hulls and light displacement (3.9 tonnes) cause the least possible resistance, which substantially reduces the power required to achieve normal patrol and emergency response speeds. Due to the vessel's low resistance, the twin Yanmar 36hp diesel outboards provide power for 17 knots, but offer a substantial 67% fuel saving when compared with the former Upper District patrol launches. This fuel economy, together with the solar panels provided to supplement electrical systems onboard, offer savings not only in operating costs but also in emissions of CO2.
'Lambeth, Kew, Southwark and Barnes'
A fleet of four purpose-built harbour patrol vessels used in the middle and lower districts of the tidal Thames, between Putney Bridge and the North Sea.
The launches were built by Alnmaritec, based in Alnwick, Northumberland, and the hull type is aluminium catamaran with deep vee hull form, designed by Newcastle University The hull structure was designed by Amgram Limited. The vessels are 13.5 metres long and 4.8 metres wide with a weight of 11 tonnes. Two John Deere 200 horsepower marine diesel engines provide a maximum speed of 21 knots (24 mph) and a patrol speed of 18 knots (20.5 mph). lower districts of the tidal Thames.
The launches were built by Alnmaritec, based in Alnwick, Northumberland, and the hull type is aluminium catamaran with deep vee hull form, designed by Newcastle University The hull structure was designed by Amgram Limited. The vessels are 13.5 metres long and 4.8 metres wide with a weight of 11 tonnes. Two John Deere 200 horsepower marine diesel engines provide a maximum speed of 21 knots (24 mph) and a patrol speed of 18 knots (20.5 mph). lower districts of the tidal Thames.
'Easthaven'
Easthaven' is a Powercat 525, shallow-draught RIB used mainly by the Harbour Service in the lower reaches of the Thames to patrol the Holehaven area.
She was built and supplied by Cornwall-based boat building company Multimarine Composites Ltd.
She was built and supplied by Cornwall-based boat building company Multimarine Composites Ltd.
'Crane'
'Crane' is a sister vessel to 'Easthaven' and was originally obtained to cover operational duties around the Queen's Diamond Jubliee Pageant in 2012.
Now located at Richmond, the vessel provides additional shallow-draught capabilities up river.
Now located at Richmond, the vessel provides additional shallow-draught capabilities up river.
