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Die Hard 2 - Dump Valve
At the end of the movie Bruce climbs out on the wing opens a panel and manually dumps the fuel, then the plane takes off he lights the fuel it catches up to the plane as it takes off and explodes.
1. On airplanes with the ability to dump fuel there is no External Manual Dump valve, fuel only needs to be dumped in flight how does the flight crew get out on the wing and dump fuel at 300 knots.
2. When aircraft do dump fuel by FAA law they must dump almost all the fuel (except what's required to land) in 10 minutes (it doesn't trickle out).
3. Said fuel spill on a runway in winter would be real hard to ignite (low flashpoint of kerosene) much less catch up with an airplane taking off at 150 knots who's engine exhaust has a velocity of 350 knots and would extinguish the flame.
4. The plane could not explode because the fire would have to travel up the kerosene past the engine (it's running) into the mythical dump valve and navigate through pipes with no oxygen then get into the fuel tank.
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Rated 6.2/10 (57 ratings) Your opinion?
Special Requirements: A brain
Contributed By: Flinx on 08-21-1999 and Reviewed By: Webmaster
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I have no name writes:
It's a movie. That was done purely out of fun, the people who made the movie most likely knowing full well that this was an impossible feat. The bottom line is, who cares? It made a cool ending!
7 of 7 found this helpful. Did you? Yes
Sensei writes:
It's a fictional film. Who cares. Someone used their imagination and had some fun with it. No reason to analize someone's creative thinking.
5 of 5 found this helpful. Did you? Yes
barnaby writes:
I'd hardly call not knowing FAA regulations and the flashpoints of various flammable substances stupid. All people need to know is that the plane has left a trail of flammable fuel, john has a lighter and boom! Not many people sit there in disbelief as the FAA regulations are blatantly ignored, they just go. WOW. They're dead. Nice one McClaine.
5 of 6 found this helpful. Did you? Yes
Ara Darkhunter writes:
If you'll notice, many, if not all movies do this. They play on what people don't know. For instance, take the movie Desparate Measures.... When McCabe is lying on the operating table, and he lights the oxygen tank... Oxygen doesn't work like that. It'll assist combustion but doesn't burn like a flamethrower.
2 of 3 found this helpful. Did you? Yes
Flinx writes:
There's a difference between "creative thinking", and down right stupidity!
0 of 10 found this helpful. Did you? Yes

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