From:
http://www.news.com.au/adelaidenow/story/0,22606,25385931-2682,00.htmlSA watches trial of giant waterbomber
A GIANT 747 air tanker that carries eight times as much water as other firefighting aircraft and moves twice as fast is bound for Australia.
The "Supertanker" will undergo its first fire season test in the US this year and authorities from SA, Victoria and NSW will be watching.
US officials have discussed the aircraft with Australian agencies, including Victoria's Country Fire Authority. Manufacturer Evergreen Aviation plans to stage a demonstration in Australia.
The plane is a Boeing 747 modified to carry 75,868 litres of water - more than eight times the usual payload for waterbombers.
It can reach speeds of 965km/h, twice as fast as typical firefighting aircraft, and disperses water with the same pressure as driving rain, the manufacturer claims. It takes about 30 minutes to refuel and refill using high-speed pumps.
The most effective airborne firefighting weapon used in Australia is the Erickson Air-Crane Helitanker, such as the one nicknamed Elvis, which is brought from the US each fire season.
The chopper carries 9000 litres of water, but it takes just 40 seconds to refill by lowering its bucket into a local water source