Evergreen 747

Evergreen International Aviation announced on March 24, 2009 (link no longer works) that its B747 supertanker received interim certification from the Interagency Air Tanker Board (IATB). IATB certification is required before an air tanker can be under federal contract. Bill Gabbert of Wildfire Today reported on the 747 receiving IATB approval here.

Capable of flying at 600 mph, the 747(tail number 979) can drop more than 20,000 gallons of retardant.

The 747 recently completed what is known as a drop test. Briefly, in a drop test an air tanker (or helitanker or helicopter with bucket) flys over a cup-and-grid matrix to test the coverage level for each type of drop.

Evergreen produced a seven minute video on the 747 supertanker:





Updated on August 3, 2015: I had to delete some old and outdated links from Evergreen Aviation that no longer work. At the time I wrote this article, they had a photogallery of the 747 and a page describing her capabilities. According to Bill Gabbert's May 2nd (2014) article on Fire Aviation it seems that Evergreen has declared bankruptcy.