To: Jon Koplik who wrote (7302 ) 11/12/2005 1:52:04 PM From: Maurice Winn Read Replies (1) | Respond to of 12246 Good point Jon. If DVT is a problem on 11 hour flights, it's going to be 4 times the problem on 23 hour flights [under the same seating conditions]. Or maybe 10 times the problem as things usually reach a failure time and then the effect starts happening. I suppose DVT is a function of blood flow restriction, dehydration, oxygen reduction, dietary change, and other effects from being stuck in a 10km high sardine can. After an hour, I dare say there are few people with DVT. After 6 hours, not many as they are still getting into it. After 10 hours, the wear and tear must be getting signficant. After 16 hours, metabolic systems will be all over the map. After a day of non-stop sardinization and dehydration and immobility and oxygen deprivation and melatonin muck-up and other system disruption it might be that most people need to be carried off the aircraft on a stretcher. Unlike the test pilots and other healthy specimens, "normal" humanity is in quite dodgy condition even before they get on the aircraft. They can barely stay alive on the ground, in good conditions. Apart from health, having Globalstar would be necessary as people are not going to be happy to be out of contact for a whole day. With millions of people on aircraft at any one time, it's absurd that airlines are so pathetic that they haven't got decent communications available to passengers. An aircraft is a perfect place to arrange communications. Lots of people in a small space to share the small capital cost, high value people [by definition of being on an aircraft], lots of electricity and lines of sight available. Not interfering with nearby things. But they haven't managed it. Management of companies is generally pathetic so it's not surprising. Look at Globalstar for example. They would have wanted the airlines to pay them $3 a minute wholesale price. Which means airlines quite sensibly should decline to bother as not many people could afford $4 a minute to use a phone for other than urgent calls. Mqurice