Name: NOAA R4105 (historical)
Hull: Semi-Displacement, 5086 Aluminum
The 41-foot Huron Explorer, a refurbished U.S. Coast Guard utility boat, uses 100% soy biodiesel for engine fuel and all natural vegetable oil-based lubricants. It is one of the first NOAA vessels to operate without any petroleum-based products. Displacement, full load 30,000 pounds, Displacement, less cargo 26,000 pounds. The vessel underwent a second major rehab in the winter of 2010.