Three part video series Monday 2nd Aug, 747 Supertanker Video 1 Wednesday 4 Aug, 747 Supertanker Video 2 Fryday 6 Aug, C130 tanker 747 Supertanker From Wikipedia, the free encyclopedia The 747 Supertanker is one of several aerial firefighting air tankers derived from various Boeing 747 models. The aircraft is rated to carry up to 19,600 US gallons (74,000 L) of fire retardant or water. They are the largest aerial firefighting aircraft in the world.[2] Initially developed by Evergreen Internation