Boeing 747 High Altitude Water Drop

This explains the constant local showers in the London area.
rasch187says...

“Many people are of the assumption that aircraft lavatories dump overboard when they are flushed, this is not the case. Lavatory waste is contained on the aircraft in a holding tank until the aircraft lands. When the aircraft is safely on the ground, only ground crew personnel may operate the valve to dump the waste tank. While in flight it is physically impossible for the pilots to dump the waste water because the valve is usually located on the exterior of the aircraft.”

From the Chicago O'Hare Flight Standards District Office

Skeevesays...

Because the Supertanker uses a pressurized dump system it can drop water from 400 to 800 ft as opposed to other water bombers which use gravity to drop the water and must be around 200ft. This video, though, is probably just a test of the system itself, so is flying much higher.
>> ^Zyrxil:
It's hard to imagine how dropping the water from what looks like a very high altitude would do anything useful, as by the time the water reached the ground it'd be dispersed over an extremely large area.

>> ^Skeeve:
Yep, it's an Evergreen 747 Supertanker, the largest aerial firefighter.
http://en.wikipedia.org/wiki/Evergreen_Supertanker>> ^vaporlock:
Is this a firefighter or what's going on. Anyone know?



mxxconsays...

>> ^rasch187:
“Many people are of the assumption that aircraft lavatories dump overboard when they are flushed, this is not the case. Lavatory waste is contained on the aircraft in a holding tank until the aircraft lands. When the aircraft is safely on the ground, only ground crew personnel may operate the valve to dump the waste tank. While in flight it is physically impossible for the pilots to dump the waste water because the valve is usually located on the exterior of the aircraft.”
From the Chicago O'Hare Flight Standards District Office
socialist propaganda!

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