Man of Honour
iirc there are not enough spaces at all the civilian airports in the world for all the planes to land at once
I've heard this many years ago but America somehow grounded all their planes after 9/11.
how much time to do planes stay on the ground?
- Thread starter poker_999
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I've heard this many years ago but America somehow grounded all their planes after 9/11.
Soldato
30-45 minutes is daily standard for short haul flights iirc.
I guess this is a cause of some delays.
Yup. Unprofessional Controllers do cause unnecessary delays on a regular basis!
ok apparently these planes carry so much fuel if they need to land in an emergency the often have to dump the fuel or they are to heavy to land.
Where do they dump it? over the sea? What about environmental risks etc? If they dump fuel why dont they dump faecal matter as well?
How much fuel is wasted by dumping? (monetary and litre figures please)
Where do they dump it? over the sea? What about environmental risks etc? If they dump fuel why dont they dump faecal matter as well?
How much fuel is wasted by dumping? (monetary and litre figures please)
Dumping can occur anywhere. Recommendations are for dumping to be carried about above FL100 in winter and above FL70 in summer, preferably over unpopulated areas. The fuel evaporates into the atmosphere before reaching the surface. The environmental risks are minimal and fuel dumping happens very rarely. Dumping may take place below these recommended levels and in less than suitable areas in the event of an emergency.
I'm not sure of actual figures but I've worked aircraft which have dumped fifty tonnes and more.
Not all aircraft are able to or need to dump fuel.
I guess this is a cause of some delays.
What on earth is going on there lol
Deleted member 66701
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Deleted member 66701
Actually, most modern aircraft have maximum landing weights the same as the maximum take off weights and those that don't still don't necessarily have systems to dump fuel - it's assumed that by the time a plane has taken off it's burnt up enough fuel to be able to land again.
Fuel dumping actually on occurs about 127 times per year.
Over the sea if it's low level or over land if the plane is high enough that the fuel will dissipate easily.
Assume an average fuel dump of 12000 gallons 127 times per year =
About 1.5million gallons.
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Yeah but most planes arnt modern are they? Plenty of airlines are still flying around in almost 40 year old rust buckets.
because Americas planes aren't all the planes in the world.
Deleted member 66701
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Deleted member 66701
Due to the time between concept, design, testing and service - anything 30 years or younger is considered modern
Deleted member 66701
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Deleted member 66701
Man of Honour
I think you missed the point.
America own a lot of planes (probably way more than anybody else) but were able to ground them all.
Somebody stated earlier that it couldn't be done irrespective if it's one country or all of them.
It is a myth that you can't get all planes down on the ground.
I reckon there's enough tarmac out there to get all aircraft on the ground.
Soldato
Commissario
I'd be amazed if there wasn't space for all the aircraft to be put down - most airports don't run at 100% capacity, and if needed you could park them closer together than normal/park them in areas that wouldn't normally be used for parking (IE by the terminals), or even where the airport has multiple runways, on one of them as a last resort.
It would probably be a major exercise to get them back to where they are meant to be (it often is when just a few airports are out of action), and almost certainly cost a fortune in lost time but it would be doable imo.
It would probably be a major exercise to get them back to where they are meant to be (it often is when just a few airports are out of action), and almost certainly cost a fortune in lost time but it would be doable imo.
Man of Honour
I concur
Might bugger up the traffic on the M6 though.