Finnish pollution control vessel Halli

Halli (899) is a modified, enlarged Hylje-design, and acts as a combined pollution cleanup and vehicle transport ship. She is also operated by a civilian crew from the Ministry of Environment but is under navy control. The vessel can act as a landing ship and logistic support vessel. The 11-metre (36 ft) bow ramp can be used to load or unload vehicles up to 48 tons. As a cleanup vessel, she can sweep a 30-metre (98 ft) path at 1.5 knots (2.8 km/h; 1.7 mph) with her MacGregor-Navire MacLORI pollution collection system. The vessel is equipped with a 360-cubic-metre (13,000 cu ft) waste-collection tank. The ship was built in 1986 and refitted in 2010.