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Originally posted by Astygia
It could have been a run-of-the-mill Nokia, one of many cellphones still network at high altitudes. When I flew back from Georgia last year, some teenager kept the bathroom occupied for an hour while she chatted away in there.
But if you can't believe that standard cellphones work that high, then entertain for a moment that the President might have access to signal boosters superior to those sold in Wal-Mart.
What are you getting at, anyway?
Originally posted by mondegreen
You state something that does not relate to this thread. Do you have any proof the cell phones worked at 40,000 ft. I doubt a teenager keep the bathroom lock for one hour at all. Your statement is very misleading. If you can read please reread the statement to find your answer. The cell phone could not have been used yet you state without any proof that on 911 cell phones worked at 40,000. Were you setting on the ground for a hour and the phones worked or what.
Originally posted by mondegreen
You state something that does not relate to this thread. Do you have any proof the cell phones worked at 40,000 ft. I doubt a teenager keep the bathroom lock for one hour at all. Your statement is very misleading. If you can read please reread the statement to find your answer. The cell phone could not have been used yet you state without any proof that on 911 cell phones worked at 40,000. Were you setting on the ground for a hour and the phones worked or what.
Originally posted by Knights
Originally posted by mondegreen
You state something that does not relate to this thread. Do you have any proof the cell phones worked at 40,000 ft. I doubt a teenager keep the bathroom lock for one hour at all. Your statement is very misleading. If you can read please reread the statement to find your answer. The cell phone could not have been used yet you state without any proof that on 911 cell phones worked at 40,000. Were you setting on the ground for a hour and the phones worked or what.
Insulting people by asking 'if you can read' is quite rude and i'm sure it's against the T&C of this site.
Yes mobile phones do work during flights. A common case happened recently during a flight when a previous passenger had left a phone onboard, mid-flight the phone rang scaring a passenger into thinking it was to trigger a bomb of somesort. Several phonecalls were made during 9/11 from the planes as passengers gave loved ones calls letting them know of their fate.
Originally posted by Johnmike
Yes, they work at that altitude. It's been tested.
Please post proof of the cell phones working at 40,000 ft .
Well? I don't know, but calls go through for the entire duration of the flight at times.
Please post proof of this information of cell phones for duration of flight, remember we are not talking about now, but the day Sept 11, 2001.
Also, Air Force One's communications system isn't a standard cell phone, obviously.
Why would the Air Force one not have a standard cell phone, if its different please post information to enforce your remark.
[edit on 3-9-2006 by Johnmike]
Originally posted by marcopolo
why is it hard to believe?? alot of phones rech satellites bounces off them to the ground just meens that the phone would be closer
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Originally posted by Willard856
Here we go around the buoy again. Do a search on ATS and read one of the many threads where it has been categorically shown (based on advice from pilots, air traffic controllers, mobile phone operators and a number of personal anecdotes from travellers) that mobile phones work in planes.
Maybe we need to start a list of things that people shouldn't post new threads on...
From USA Today Article linked above
Cell phones usually don't work at high altitudes. When they do, they simultaneously communicate with hundreds of cell towers on the ground, clogging networks.
from the above link
The second issue were claims that mobile phones in the sky would connect to so many different cellular towers at once that it would overload phone networks. Again, the fact that many people already do use mobile phones on airplanes without stories of major problems for phone networks suggests this problem has been somewhat exaggerated.
from above link
As the pilot's voice came on, informing us that San Francisco was unapproachable and we were being redirected to Oakland, passengers began making cell-phone calls to their rides -- hiding the phones from flight attendants, of course, since a federal law prohibits cellular calls on an airplane.
from the above link
The Wilson Cellular Direct Connect connects directly to your cell phone. This 3 Watt Power Booster can increase your cellular phone coverage up to 50 miles with up to 3 watts of power.
from above link
The signal amplifier reduces problems with signal fades and dropped calls while improving voice quality, service range and access. The power booster enhances the performance of cellular telephones, resulting in wider coverage (up to 25 miles
Not considering you undermining just moving the thread away from what its intend outcome should be.
To lift a 600,000-pound jet to an altitude of 10,000 feet takes six billion foot pounds of work (600,000 pounds x 10,000 feet). To complete this climb in 10 minutes (or 600 seconds) would require 10,000,000 foot pounds per second of power (6,000,000,000 foot pounds/600 seconds). We know that each of its engines produce 50,000 of thrust.Thanks to British physicist James Watt, who determined that a horse is capable of producing roughly 550 foot pounds of power per second, we can express this figure in terms of horsepower. In our example, the amount of power required would be a little more than 18,000 horsepower.
Each engine is using 18,000 pounds of energy to move to 10,000 feet. This leaves 32,000 pounds of thrust as pure power boost, assuming we use this formula we may infer that VC-25 was much higher than 40,000 and climbing at or above a 20 degree angle.