View Full Version : To fuel dump or not to fuel dump...
SaturnV
22nd Sep 2005, 00:14
The nose gear is down but twisted 90 degrees. Live coverage of the plane on major US cable news networks. Presntly dumping fuel.
16 blades
22nd Sep 2005, 00:16
Sky news reporting that the nosegear has been 'twisted through 90 degrees'! Truly bizarre. Watching a live feed now of it apparently making an approach into LAX after dumping fuel. Reportedly 145 POB. Good luck!
16B
JudyTTexas
22nd Sep 2005, 00:17
MSNBC reports: From an NTSB agent, airbus does not have capabilities to dump fuel. Expected to land 5:25p LAX.
JudyTTexas
22nd Sep 2005, 00:32
CNN: says they dumped fuel... Can they or can't they?
Dream Land
22nd Sep 2005, 00:35
Cannot dump fuel
D.L.:ok:
Icebreaker
22nd Sep 2005, 00:38
A320's do not have fuel dump capability - misinformed Journo.
Dushan
22nd Sep 2005, 00:39
Why can't they dump fuel. Technical reason or political (environmental wacko laws in CA?)
SaturnV
22nd Sep 2005, 00:42
Yes, the television reporters have corrected that the pilots are burning off fuel, and don't have the capability to dump it.
Dream Land
22nd Sep 2005, 00:43
Fuel dumping is accomplished from a fuel manifold by opening a valve on the manifold, fuel is dumped overboard, this aircraft will fly fine on one engine so there is no need for this feature.
D.L.:ok:
Dushan
22nd Sep 2005, 00:48
What if they had no luxury of circling and burning off fuel. What if they were on fire and had to land in a hurry, right after take off. Can anyone comment. Are all A320s like this or are all Airbuses like this.
barit1
22nd Sep 2005, 00:49
Fuel dump is only required equipment if you need to get down to max landing wt. in a hurry.
Flaps are still up, so he's not in a big hurry. (17:52 PDT)
bb744
22nd Sep 2005, 00:52
If you had to land in a hurry, then it probably would not matter wether you had dumping capability or not. No time to dump, only land
JudyTTexas
22nd Sep 2005, 00:54
The same NTSB agent mentioned some Boeing a/c also cannot dump fuel ie: MD-80
Dream Land
22nd Sep 2005, 00:59
Some Boeing Aircraft; MD80:}
D.L.
innuendo
22nd Sep 2005, 13:43
Some Boeing Aircraft; MD80
Includes some 767-200 models, no dumping system installed.
sky330
22nd Sep 2005, 17:03
If you are in a hurry, do the overweight landing check-list and land right away.
If you have time and need to be be light, either dump if your aircraft is so equiped (nearly all wide-bodies) or burned it (a lot of narrow bodies).
Here, with landing gear problem, trying to be light make sense.
NudgingSteel
22nd Sep 2005, 22:00
Lots of newer aircraft these days are certified to land at close to MTOW in emergency, hence fuel dump feature not required.
Jonty
23rd Sep 2005, 09:02
As far as I know if an aircraft can structurally survive a landing at MTOW then a fuel dump feature is not required.
The B757-200/300 has no fuel dump feature.
catchup
23rd Sep 2005, 09:08
A 300-600
MTOW 150.000 kg
MLW 138.000 kg
NO FUEL DUMP
Rainboe
23rd Sep 2005, 09:56
Any aeroplane can land back at MTOW in an emergency! They do it very easily. If they can take off from a runway, they can land back on it at MTOW. Even a B747-400 on fire will quite happily land back at that weight! But a fuel jettison system is fitted, usually to longer range aircraft as the spread between MTOW and MLW is so large- some 75 tonnes or so, and it may be necessary to lose fuel to minimum levels resulting in some 12+ hours burning up fuel without a jettison system.
jonseagull
23rd Sep 2005, 13:19
B767-300
MTOM 186880 Kg
MLM 145149 Kg
Fuel dump fitted to enable aircraft to land within it's brake energy limits. The aircraft is perfectly capable of landing at 186 tonnes if in an emergency.
Plastique
23rd Sep 2005, 13:31
Jettison on Airbus Aircraft:
These aircraft have Fuel Jettison capability:
A340-200/300/500/600
A300B2/B4 (not -600)
A330-200
These aircraft DO NOT have Jettison:
A330-300
A318/A319/A320/A321
A310-200/300
A300-600/-600R/-600F/-600ST (Beluga)
In fact there is no requirement for jettison on the A330/A340 family, as the aircraft may perform an overweight landing up to the MTOW, and no inspection is required provided that the landing is not excessively hard.
Jettison is there based on a request from a launch customer as a hot and high (e.g JNB) overweight landing could be a bit sporty.
Jettison was rolled forward onto the A330-200 due to the additional 30t tankerage in the centre tank.
Jettison is on the A300B because it was the norm back then.
FAR25-1001 lays down the requirements for a fuel jettison system....
Cant find anything in there to do with brake energy?
Mutt