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Wrongggg,, the wings have an angle,, they are not swept. And you have to look at the spped and altutude of the aircraft. Sice when do airliners fly close to the spped of sound, specially with fuel and passangers. [edit on 8-6-2006 by ULTIMA1]
Originally posted by Zaphod58 So you're saying that if you look at a picture of a WWII fighter that had perfectly straight wings, and a modern airliner the wing angle will be exactly the same, since airliners don't have swept wings. Oops! Looks swept to me! ALL jet aircraft use swept wings, because a swept wing lets them fly closer to the speed of sound. [Oops! Seems it DOES have a sweep to it. [edit on 6/7/2006 by Zaphod58]
Some great info there LaBTop! I always thought there was something extremely wrong with their excuses for the lack of responce.
You have voted LaBTop for the Way Above Top Secret award. You have two more votes this month.
At 9:25, Garvey, in an historic and admirable step, and almost certainly after getting an okay from the White House, initiated a national ground stop, which forbids takeoffs and requires planes in the air to get down as soon as reasonable. The order, which has never been implemented since flying was invented in 1903, applied to virtually every single kind of machine that can takeoff — civilian, military, or law enforcement.
Source for both quotes From the second quote, the bit that reads "(and some flights that the FAA can't reveral that were already airborne)" - what would they be? Military jets? Can you shed any light on that for me? I'm confused, but always willing to learn. I must admit that the headline to that story I quoted is "The Day the FAA Stopped the World." To me, that is a bit "over the top". They stopped America (and possibly Canada/Alaska). I have yet to believe that America is the World. Note: Before the Canadians pounce on me - yes, I know Canada is not part of the USA. I'm now going to wander off and do some research to see if any steps were taken here. Edited for spelling [edit on 9/6/06 by Aotearoa]
at 10:31, the FAA allowed all military and law enforcement flights to resume (and some flights that the FAA can't reveal that were already airborne).
Just a quick comment from a guy at Boeing. Catherder did a great job showing what we all know at Boeing - that we lost two 757's and two 767's on 9/11. Just for the record guys, there are only about 10,000 jetliners in the entire world, and only ~1000 757's. Boeing and the FAA track every single jetliner made, and we know, beyond any doubt, that 4 of our planes disappeared on 9/11. If you want to claim that some other plane flew into the Pentagon, fine. But then you have to explain what happened to 4 airplanes worth hundreds of millions of $US. These are objects the size of strip malls, and are difficult to hide. Regarding ground effect, I've read some nonsense that a plane in ground effect would be uncontrollable. Guys, your jetliner goes through ground effect every time it lands. Not a big deal. You may even have noticed a change in the feel of the aircraft, kind of a "bounce", as the plane nears the runway. I've personally been on a 757 during a flight test where we descended, twice, to maybe 5 feet above the runway at Glascow, MN without actually landing. Other stuff: the dihedral (upward angle) of the wing makes the airplane more stable in ground effect. This may not be the case in airplanes with flat wings, (like fighters) I wouldn't know. If a wingtip hit the ground, the plane would cartwheel, like in Sioux City. But the engine nacelle is mostly air. If you drag a nacelle, it's bad, but the plane stays on course. If you hit an engine hard enough, fuse pins break and the engine comes off and the again, the plane continues on course. Here's a likely nacelle impact: www.airliners.net... Burnt grass: The jet blast can toss a car over 100 feet. ( www.aviationexplorer.com... ) But at the end of our runway at Paine Field, the grass is nice and green. You'll note the grass is unaffected in the video as well. Regarding pieces: You can't buy or make convincing fake debris. Every single part has a part & serial number, and the investigators (NTSB, FAA, Boeing) can pick them out by sight. Show me a part #, and unless it is common to multiple airplanes, I can tell you what plane it came from. So if you try to pass 707 scrap off as a 757, people in the know could tell in seconds. About the missing fuselage, I haven't seen it mentioned here, but aluminum burns when pulverized and heated up. You've heard of magnesium flares? Same thing. Most "non-sparking" metals do this, according to the warning signs by our shop grinders. When the airplane hits the wall, most of the fuselage is converted into tons of shrapnel which cut through the building, and some of it is sure to be in small enough fragments to combust. This is the same concept behind certain shaped charge armor-piercing shells. ( en.wikipedia.org... en.wikipedia.org... ) And I think someone already mentioned that the 1980-vintage autoland capability on the 757 requires big, identifiable antennas sitting outside in the Pentagon parking lot. ( en.wikipedia.org... ) Thus, there were definitely pilots on board. So, you can have a conspiracy theory about where the terrorists came from, or what their goal was. That's beyond my field of experience. But a 757 definitely hit the Pentagon. That's unless you can explain several hundred missing passengers, 4 missing airplanes, and identifiable bodies and airplane parts at each crash site. Any conspiracy would also have to involve the NTSB, FAA, FBI, Boeing, the coroner, both airlines, dozens of insurance companies, Pentagon officials, the Air Force base the fake planes departed from, and every damned person on the beltway including the janitor who swept up the fake parts without noticing. This one's done, guys! Give it up. -Boenoid
Re: Original post by CatHerder: Evidence That A Boeing 757 Really Did Impact the Pentagon on 9/11
Big difference between a plane at it's landing speed with flaps down and trimmed for landing, than a plane doing 500 mph. Pilots, at least miltary, regularly do 'touch and goes', which is what your describing, but not at 500 mph in a 757.... [edit on 11/6/2006 by ANOK]
Originally posted by Boenoid Re: Original post by CatHerder: Regarding ground effect, I've read some nonsense that a plane in ground effect would be uncontrollable. Guys, your jetliner goes through ground effect every time it lands. Not a big deal. You may even have noticed a change in the feel of the aircraft, kind of a "bounce", as the plane nears the runway. I've personally been on a 757 during a flight test where we descended, twice, to maybe 5 feet above the runway at Glascow, MN without actually landing.
As tuccy pointed out earlier in his discussion of NOE flight ( en.wikipedia.org... ) ground effect works at high speeds as well. See en.wikipedia.org... Be sure to follow the link to the Russian planes designed to fly in ground effect at all times. Boeing builds these planes like brick, er, outhouses. Consider the Aloha accident ( en.wikipedia.org... ) which came back with half a fuselage and still had only one fatality. 60 seconds in high speed ground effect won't break the wing spar. According to one Boeing history book, Howard Huges deployed the flaps of a 707 far above the maximum permitted speed and all that happened was that the flaps landed in somebody's back yard. And supposedly the Boeing pilot pretended he had made the mistake instead when the press showed up, to avoid embarassing the customer. And remember, a commercial airplane's dihedral ( en.wikipedia.org... ) stabilizes the aircraft in ways military airplanes can't match. Hey, do we really know the 757 flaps were retracted on impact? That sounds stupid, although I guess it would allow the pilot to fly faster. BTW, I also realized the conspiracy would require involvement from the supplier of the aircraft or missle that replaced the missing 757. After all, every single F-16 and C-130 and Global Hawk is also tracked by the manufacturers and the FAA and Aviation Week (Av Leak, as we call it) and even by the aerospace equivalent of trainspotters. ( www.planespotter.org... www.buzzle.com... ) So if the crash was really a Global Hawk, for example, there would have to a corresponding fake crash of a Global Hawk someplace to cover up the missing UAV. Which would require the complicity of Northrop Grumman. BTW, that plane is only 1/10th the mass of the 757, so I have a hard time seeing how it could do that much damage. www.northropgrumman.com... And then you have the parts suppliers - for safety related parts we track every single serial number, as do the parts suppliers. This is an FAA requirement. And hundreds of these parts have mandatory replacement schedules. So if you break an airplane up for parts, the serial numbers will reveal the crime. If you have an airplane you're not supposed to have, the extra parts purchases will reveal the crime. If you're missing a plane you are supposed to have, the missing parts orders will reveal the crime. SO, you have to bring all the parts suppliers, hundreds of them, in on the conspiracy as well. I guess I also don't understand why the attackers (terrorists or whoever) would attack the WTC with jetliners and the Pentagon with something else. -Boenoid
Originally posted by ANOK Big difference between a plane at it's landing speed with flaps down and trimmed for landing, than a plane doing 500 mph. Pilots, at least miltary, regularly do 'touch and goes', which is what your describing, but not at 500 mph in a 757.... [edit on 11/6/2006 by ANOK]