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Fred J. McCall wrote:
Volker Hetzer wrote: :What did they mistake that airliner for anyway? A strategic bomber or what? :And which of the enemies they were engaged with had bombers made by airbus? If you don't know this then you don't know anything about the incident. It is also clear that you don't know anything about radar. The radar paint is not marked 'Airbus'. I know that. I also did know someone working at a radar point in east germany. And echoes do differ. Maybe not enough to tell an f14 from an f18 but a big plane ought to have stood out. The transponder block is supposed to tell you what is going on. It is based on what the transponder on the aircraft does in response to the radar paint. Right. And did the airbus' transponder work? Then they've done what's expected from a civilian airliner, which was the issue I was responding to. Greetings! Volker |
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On Sat, 04 Feb 2006 10:17:45 +0100, Volker Hetzer wrote:
Fred J. McCall wrote: Volker Hetzer wrote: :What did they mistake that airliner for anyway? A strategic bomber or what? :And which of the enemies they were engaged with had bombers made by airbus? If you don't know this then you don't know anything about the incident. It is also clear that you don't know anything about radar. The radar paint is not marked 'Airbus'. I know that. I also did know someone working at a radar point in east germany. And echoes do differ. Maybe not enough to tell an f14 from an f18 but a big plane ought to have stood out. The transponder block is supposed to tell you what is going on. It is based on what the transponder on the aircraft does in response to the radar paint. Right. And did the airbus' transponder work? Then they've done what's expected from a civilian airliner, which was the issue I was responding to. Greetings! Volker The US shot it down on purpose. That is clear. The airliner was not to blame at all. But of course it is only "barbaric" when somebody other than the USA does the shooting. When the USA does it it is one of the following: 1. Collateral damage 2. A tragic accident. 3. The innocent victims fault. Take your pick. The USA never punishes its own war criminals. Even Lt Calley got off. |
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Volker Hetzer wrote:
:Fred J. McCall wrote: : Volker Hetzer wrote: : : :What did they mistake that airliner for anyway? A strategic bomber or what? : :And which of the enemies they were engaged with had bombers made by airbus? : : If you don't know this then you don't know anything about the : incident. It is also clear that you don't know anything about radar. : : The radar paint is not marked 'Airbus'. : :I know that. I also did know someone working at a radar point in east germany. :And echoes do differ. Maybe not enough to tell an f14 from an f18 but a :big plane ought to have stood out. Nope. They're both just a dot. : The transponder block is supposed to tell you what is going on. It is : based on what the transponder on the aircraft does in response to the : radar paint. : :Right. And did the airbus' transponder work? Yes, but that doesn't mean anything, as I explained in the part you snipped. A military aircraft can look identical to a civilian aircraft on transponder, as well. :Then they've done what's expected from a civilian airliner, which was the :issue I was responding to. Except for the habit of Iranian aircraft not to answer radio challenges at the time. -- "Insisting on perfect safety is for people who don't have the balls to live in the real world." -- Mary Shafer, NASA Dryden |
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Fred J. McCall kirjoitti:
Volker Hetzer wrote: :Fred J. McCall wrote: Snip :Then they've done what's expected from a civilian airliner, which was the :issue I was responding to. Except for the habit of Iranian aircraft not to answer radio challenges at the time. Admittedly I do not recall all that much of the incident, but I believe that shortly after the killing there was some kind of explanation according to which Vincennes mistook radio traffic between Iranian air control and a fighter on the tarmac of a nearby air field to be associated with the approaching radar echo. If so, would Vincennes not have broadcasted their challenge on that frequency? And wouldn't such challenge thus have been unheared or at least categorized as something directed to other traffic by the crew of the Airbus? H Tavaila |
#5
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In article , Harri Tavaila says...
Fred J. McCall kirjoitti: Volker Hetzer wrote: :Fred J. McCall wrote: Snip :Then they've done what's expected from a civilian airliner, which was the :issue I was responding to. Except for the habit of Iranian aircraft not to answer radio challenges at the time. Admittedly I do not recall all that much of the incident, but I believe that shortly after the killing there was some kind of explanation according to which Vincennes mistook radio traffic between Iranian air control and a fighter on the tarmac of a nearby air field to be associated with the approaching radar echo. If so, would Vincennes not have broadcasted their challenge on that frequency? And wouldn't such challenge thus have been unheared or at least categorized as something directed to other traffic by the crew of the Airbus? The Vincennes broadcast its challenges on two radio frequencies, 121.5 MHz and 243 MHz. These are frequencies specifically set aside for this sort of communication, precisely so that there will be no guesswork involved, and the Airbus should have been monitoring 121.5 MHz. The cockpit voice recorder from the Airbus was never recovered, so we don't know whether the warning was recieved and ignored or not recieved at all. It seems unlikely that anyone would ignore such a warning, whereas it is fairly common and usually harmless for people to forget about guarding 121.5. Either way, there was no response to the Vincenne's challenges, on either frequency. -- *John Schilling * "Anything worth doing, * *Member:AIAA,NRA,ACLU,SAS,LP * is worth doing for money" * *Chief Scientist & General Partner * -13th Rule of Acquisition * *White Elephant Research, LLC * "There is no substitute * * for success" * *661-951-9107 or 661-275-6795 * -58th Rule of Acquisition * |
#6
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John Schilling kirjoitti:
In article , Harri Tavaila says... Snip If so, would Vincennes not have broadcasted their challenge on that frequency? And wouldn't such challenge thus have been unheared or at least categorized as something directed to other traffic by the crew of the Airbus? The Vincennes broadcast its challenges on two radio frequencies, 121.5 MHz and 243 MHz. These are frequencies specifically set aside for this sort of communication, precisely so that there will be no guesswork involved, and the Airbus should have been monitoring 121.5 MHz. According to http://dnausers.d-n-a.net/dnetGOjg/030788.htm which is based on sources: ICAO Adrep Summary 3/88 (#1) ICAO Circular 260- AN/154 (27-51) Aviation Disasters / D. Gero (200- 202) the IR655 - being a civilian plain - did not monitor the Military Air Distress frequency of 243 MHz . Seven challenges were issued on this frequency. According to the same source three challenges were issued on International Air Distress frequency of 121.5 MHz once the plane was at the distance of 40 miles (cutting it rather close I think). Unfortunately the source does not say how the challenges were formulated; expressions 'Iranian fighter' or 'Iranian F-14' are quoted and could hardly be expected to be replied to. Expression 'Iranian aircraft' possibly could - if it was the first expression to be used, though it leaves open the question of how one should react to such an open identification. If it was followed by something like: 'approcahing radio beacon xx from direction yy at distance zz' a reply might possibly be forthcoming - in about a minute or so, as I should think that it might take some time to verify the applicability of the definition. Any reference to the ship would of course be unidentifiable to a civilian plane. Of course if the first challenges were issued to 'a fighter' and the subsequent to 'a plane' the only reaction might be to continue to listen as the dialogue/monologue would quite apparently be directed to somebody else. But then, that would be sloppy radio protocol. The cockpit voice recorder from the Airbus was never recovered, so we don't know whether the warning was recieved and ignored or not recieved at all. snip A pity. While searching the web I also ran into a claim that during the attack the Vincennes was actually on Iranian waters and the US committee looking into the incident had to edit out a couple of islands from the maps in order to be able to claim otherwise. I think this sounds rather implausible but would be interested to verify this. Unfortunately I haven't been able to locate the report on line: if anybody should know how to find this material (one would assume it is open for public consumption) I should be most interested. H Tavaila |
#7
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On Tue, 07 Feb 2006 13:31:37 +0200, Harri Tavaila
wrote: snip 4th request Please quit crossposting this thread to sci.crypt group. Please remove sci.crypt from newsgroup crosspost list. Thank you. |
#8
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![]() Harri Tavaila wrote: While searching the web I also ran into a claim that during the attack the Vincennes was actually on Iranian waters and the US committee looking into the incident had to edit out a couple of islands from the maps in order to be able to claim otherwise. I think this sounds rather implausible but would be interested to verify this. Unfortunately I haven't been able to locate the report on line: if anybody should know how to find this material (one would assume it is open for public consumption) I should be most interested. That's based on a statement by Admiral William J. Crowe Jr., then chairman of the Joint Chiefs Of Staff: http://homepage.ntlworld.com/jksonc/...-19920701.html Pat |
#9
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On Tue, 07 Feb 2006 17:14:41 -0600, Pat Flannery
wrote: 6th request Please quit crossposting this thread to sci.crypt group. Please remove sci.crypt from newsgroup crosspost list. Thank you. |
#10
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On 6 Feb 2006 13:44:12 -0800, John Schilling
wrote: snip 3rd request Please quit crossposting this thread to sci.crypt group. Please remove sci.crypt from newsgroup crosspost list. Thank you. |
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