Science Abuse Posted June 1, 2005 Report Share Posted June 1, 2005 http://www.everestnews.com/stories2005/everestcopter05232005.htm I love experimental aviation. But this is also kind of a sad day in the history of the world. It's one of those things that ya just dont think should happen, despite knowing that it eventualy would. It should be noted that chances are still one in a hundred that weather will allow you to get near anything solid. But still, magnificent and depressing technological acheivement. Maybe they can use it to haul littered O2 tanks down from the high camp. Quote Link to comment Share on other sites More sharing options...
Akula Posted June 1, 2005 Report Share Posted June 1, 2005 Wow, I am surprised they did it. The small amount of oxygen available and thin air for the rotor to bite into. Pretty impressive. It does kind of cheapen the whole reaching the summit of everest thing, but still amazing. Quote Link to comment Share on other sites More sharing options...
Science Abuse Posted June 1, 2005 Author Report Share Posted June 1, 2005 Originally posted by Akula: Wow, I am surprised they did it. The small amount of oxygen available and thin air for the rotor to bite into. Pretty impressive. It does kind of cheapen the whole reaching the summit of everest thing, but still amazing.Actualy, if one were to jsut be dropped off on the summit, having left the base where the chopper parks, they would be dead of cerebral adema very very quickly. Having an oxygen tank doesn't keep your head pressurized. Most fatalities on Everest are from weather, so it realy cant be used much for rescue, perhaps just body retreival. Quote Link to comment Share on other sites More sharing options...
Berto Posted June 1, 2005 Report Share Posted June 1, 2005 i'm not sure if its as much as the density of air having to do with the rotor not having enough to bite into but more of a not enough oxygen for the engine to perform combustion. thats why some smaller planes run a turbo in order to increase oxygen density for the fuel to burn. i'm no aviator, i may be wrong. Quote Link to comment Share on other sites More sharing options...
Science Abuse Posted June 1, 2005 Author Report Share Posted June 1, 2005 Originally posted by RX7dood: i'm not sure if its as much as the density of air having to do with the rotor not having enough to bite into but more of a not enough oxygen for the engine to perform combustion. thats why some smaller planes run a turbo in order to increase oxygen density for the fuel to burn. i'm no aviator, i may be wrong.Its both. At sea level, that engine could produce insane power, but up there its just enough. The tough part is actively tuning it for climbing into the upper atmosphere. The output/metering at base (16,500ft) and at 29,000 ft are very different. If they tried to run it at 100% at sea level, or even at 10,000 ft, it would snap the blades off. They've been testing this thing for quite a while out there, and fianly found a day calm enough that they could summit. Some of the guys on Summitpost have written about seeing it during testing, refering to it like a UFO in Nevada, but with more suprise. "WTF is that sound?....WTF is that doing up here!?" Quote Link to comment Share on other sites More sharing options...
Nate1647545505 Posted June 1, 2005 Report Share Posted June 1, 2005 Originally posted by The Stig: Its both. At sea level, that engine could produce insane power, but up there its just enough. The tough part is actively tuning it for climbing into the upper atmosphere. The output/metering at base (16,500ft) and at 29,000 ft are very different. If they tried to run it at 100% at sea level, or even at 10,000 ft, it would snap the blades off. They've been testing this thing for quite a while out there, and fianly found a day calm enough that they could summit. Some of the guys on Summitpost have written about seeing it during testing, refering to it like a UFO in Nevada, but with more suprise. "WTF is that sound?....WTF is that doing up here!?" Dude, I just got a Profec for my Helicopter! Blow the welds on your copter blades! I wonder if they pulled a british move and used NAWWWWWWWWWWWWWWWWWWWWWWWWWS!111 Quote Link to comment Share on other sites More sharing options...
Avenger1647545502 Posted June 1, 2005 Report Share Posted June 1, 2005 I wonder if it has much cargo lifting capability at all at that altitude? They'd want a fair amount to do rescue work, I'd imagine. Quote Link to comment Share on other sites More sharing options...
zeitgeist57 Posted June 2, 2005 Report Share Posted June 2, 2005 Originally posted by RX7dood: i'm not sure if its as much as the density of air having to do with the rotor not having enough to bite into but more of a not enough oxygen for the engine to perform combustion. thats why some smaller planes run a turbo in order to increase oxygen density for the fuel to burn. i'm no aviator, i may be wrong. There is a term called DA (density altitude...thanks Plane and Pilot magazine! smile.gif ) where both altitude and temperature can affect the density of the air and subsequently the efficiency of a propeller and internal combustion engine. Turbos help, as do turbine engines and fuel injection (real-time stoich measurements and fuel adjustments). All in all, very impressive for a helicopter. Quote Link to comment Share on other sites More sharing options...
Science Abuse Posted June 3, 2005 Author Report Share Posted June 3, 2005 It was kinda nice to still have some place on earth that man could go, yet machine could not. Quote Link to comment Share on other sites More sharing options...
Avenger1647545502 Posted June 3, 2005 Report Share Posted June 3, 2005 There a still plenty of places like that, haven't seen any copters landing on K2 for instance. Quote Link to comment Share on other sites More sharing options...
Science Abuse Posted June 4, 2005 Author Report Share Posted June 4, 2005 just because they haven't been there doesnt mean they cant. Given the altitude range, all they need is utterly perfect weather....something in very short supply in the Himilaya. But in all honnesty, it's chances are as good as yours, possibly better if youcanrt climb. tongue.gif Quote Link to comment Share on other sites More sharing options...
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