This is one of the NextGen air tankers that has been so instrumental in fighting the California wild fires in 2018. This is on final approach to McClellan Air Field near Sacramento, California. The company is called 10 Tanker, and here is some info from their site: 10 Tanker Air Carrier began researching the development of Next Generation airtankers in 2002. Company personnel were assembled with an extensive history of heavy jet operations, modifications and ownership. After two years of research into aerial firefighting requirements and future direction, 10 Tanker selected the DC10 type for development. A Supplemental Type Certificate (STC) from the FAA for modifications of DC10 aircraft to be used for the aerial dispersement of liquids was issued in March 2006. 10 Tanker then obtained a 14 CFR Part 137 Operating Certificate for aerial firefighting and IAB approval for agency use. The company has achieved operational success by development of a safe and effective Structural Integrity Program, a reliable maintenance program, a robust aircraft type, and an effective, proven retardant delivery system capable of delivering full or split loads at all desired coverage levels. 10 TANKER'S DC10s have proven to be a valuable tool for professional firefighting agencies to contain and suppress wild fires of all terrain and fuel types.