Merged: Qantas 747 Engine failure. Returns to SFO
I'm going to side with Claret on this one, even if the fuel had ignited the forward speed of the aircraft and the pressure of the fuel being dumped would prevent the flames from climbing back up to the wing tip, and even if they did all the crew would need to do is turn the dump off and out goes the flame.
Also
As the fuel is not being sent into the inner sections of the turbine, and even if it was that engine was no longer running, I don't perceive their to be any ignition risk from the turbine.
Also
Ohh and by the way, a match doesnt even nearly resemble the temperatures from a turbine section!!
Join Date: Jan 2008
Location: sydney
Posts: 468
Likes: 0
Received 0 Likes
on
0 Posts
The jettison nozzle on the 744 is outboard of the engines , and I believe that they also have a flame arrestor in them so that a flame is unable to travel into the fuel system.
FYI, fuel tank vents also have flame arrestors in the wing tips and the hori stab. And the centre tank scavenge pick ups were also modded a few years back and arrestors installed. I think they were a band aid fix after the TWA 747 blew up of the U.S coast.
FYI, fuel tank vents also have flame arrestors in the wing tips and the hori stab. And the centre tank scavenge pick ups were also modded a few years back and arrestors installed. I think they were a band aid fix after the TWA 747 blew up of the U.S coast.
Join Date: Jul 2010
Location: rangaville
Posts: 2,280
Likes: 0
Received 0 Likes
on
0 Posts
Jet fuel is pretty difficult to light with a match,
Caution: move all the timber furniture and have a story ready on why all the leaves are burnt off the tree overhead (lowest leaves about 30ft)
Join Date: Sep 2006
Location: DSS-46 (Canberra Region)
Posts: 733
Likes: 0
Received 0 Likes
on
0 Posts
So what ya do is put about 6 litres in a plastic garbo, then sit the garbo in the middle of the campfire. Goes off with a big whoooosh
Caution: move all the timber furniture and have a story ready on why all the leaves are burnt off the tree overhead (lowest leaves about 30ft)
Caution: move all the timber furniture and have a story ready on why all the leaves are burnt off the tree overhead (lowest leaves about 30ft)
Join Date: Jul 1999
Location: 58-33N. 00-18W. Peterborough UK
Posts: 3,040
Likes: 0
Received 0 Likes
on
0 Posts
I'd imagine that it would be too rich a mixture, with too little oxygen, and how quickly would the sparks cool in sub zero airflow of a > 200 kias?
Anyway, don't your F-111's do exactly what Wang Funk is worried about - for a party trick.
Fuel dumping and a possible source of ignition doesnt read well with me!
Join Date: Jul 2007
Location: sydney
Posts: 39
Likes: 0
Received 0 Likes
on
0 Posts
Here is a link that explains a lot
Flickr: sb_sfo's Photostream
Looks like the guys in Sydney got a trip after all....good to see!
Crow
Flickr: sb_sfo's Photostream
Looks like the guys in Sydney got a trip after all....good to see!
Crow
Join Date: Jun 2009
Location: Australia
Posts: 179
Likes: 0
Received 0 Likes
on
0 Posts
You wouldn't want to get caught posting those photos on the net. Good way to get the sack!
The eng s/n is even visible in one pic. Wonder if it was one overhauled in EOC or an outsourced donk...
ps. you guys cranking off about the jettison catching fire and the aircraft blowing up have been smoking too much hooch
The eng s/n is even visible in one pic. Wonder if it was one overhauled in EOC or an outsourced donk...
ps. you guys cranking off about the jettison catching fire and the aircraft blowing up have been smoking too much hooch
Qantas 747 with a Rolls un-contained engine failure...some sort of pattern starting to emerge here...or just bad luck?
Pictures: Qantas 747 uncontained engine failure-31/08/2010-Washington DC-Flightglobal.com
Pictures: Qantas 747 uncontained engine failure-31/08/2010-Washington DC-Flightglobal.com
Join Date: Jan 2005
Location: Oz
Posts: 466
Likes: 0
Received 0 Likes
on
0 Posts
The eng s/n is even visible in one pic. Wonder if it was one overhauled in EOC or an outsourced donk...