Comments on: “Can’t Discount Terrorism”: French Say Brazilian Reports Of Recovered Air France Debris False – Concerned http://patdollard.com/2009/06/cant-discount-terrorism-french-say-brazilian-reports-of-recovered-air-france-debris-false-concerned/ The War Starts Here Mon, 23 Apr 2012 14:16:14 +0000 hourly 1 http://wordpress.org/?v=3.3.2 By: wondering http://patdollard.com/2009/06/cant-discount-terrorism-french-say-brazilian-reports-of-recovered-air-france-debris-false-concerned/#comment-483461 wondering Fri, 03 Jul 2009 05:23:52 +0000 http://patdollard.com/?p=77297#comment-483461 it just seems like there is a lot of inconsistency in the reports...also, terrorists sometimes take their time to claim responsibility. Why would the U.S. be so eager to offer assistance if there wasn't some creditibility to the possibility of an attack? The autopsy reports are obscure and inconsistent as well. Just wondering...sounds like a coverup it just seems like there is a lot of inconsistency in the reports…also, terrorists sometimes take their time to claim responsibility. Why would the U.S. be so eager to offer assistance if there wasn’t some creditibility to the possibility of an attack? The autopsy reports are obscure and inconsistent as well. Just wondering…sounds like a coverup

]]> By: IRONMIKE http://patdollard.com/2009/06/cant-discount-terrorism-french-say-brazilian-reports-of-recovered-air-france-debris-false-concerned/#comment-466515 IRONMIKE Fri, 05 Jun 2009 20:15:19 +0000 http://patdollard.com/?p=77297#comment-466515 Terrorists usually claim credit for any successful attack, have any terror organizations claimed to have done this? I mean, what would terrorists be without their pronouncements of joy in killing innocent human beings? Terrorists usually claim credit for any successful attack, have any terror organizations claimed to have done this? I mean, what would terrorists be without their pronouncements of joy in killing innocent human beings?

]]> By: AFITgrad86 http://patdollard.com/2009/06/cant-discount-terrorism-french-say-brazilian-reports-of-recovered-air-france-debris-false-concerned/#comment-466403 AFITgrad86 Fri, 05 Jun 2009 16:21:22 +0000 http://patdollard.com/?p=77297#comment-466403 "Meteorologists said the Air France jet entered an unusual storm with 100 mph (160 kph) updrafts that acted as a vacuum, sucking water up from the ocean. The moist air rushed up to the plane’s high altitude, where it quickly froze in minus-40 degree temperatures. The updrafts also would have created dangerous turbulence." This information was strongly refuted by the Weather Channel yesterday. They labeled this information as "bogus" and challenged the source to come forward to defend their claim. Although I am not a weatherman, I do understand aviation meteorology to some degree and agree with the Weather Channel on this one. Specifically, they pointed out the difference in the location of the tropopause (a division between the stratosphere and the lower troposphere) in the area where the aircraft disappeared and the continental US. This difference accounts for the height of the thunderheads in the region (the tropopause is lower the further you travel from the equator) leading to a false impression of the strength of the cells. Also, the temperature differences between the top of the thunderhead and sea level are less pronounced at the equator reducing the strength of updrafts. The WC estimated that maximum updrafts would have been in the range of 40 mph not 100 mph. However, the theory of computer malfunction is worth pursuing. The Australians experienced commanded pitch-down on an Airbus 330 when the angel-of-attack (AOA) spiked as a result of either the sensor or the air data computer malfunctioned. What makes the computer malfunction theory interesting is that the fly-by-wire system in the Airbus uses three sets of 'laws' to translate autopilot or sidestick inputs into flight control movement. These laws (Normal, Alternate, and Manual) are selected according flight/equipment conditions. In the Normal and Alternate laws the pilot's input on the sidestick is modulated by the computer to prevent over stressing the airframe. However, in Manual mode the pilot's inputs are not modulated (limited) meaning that an abrupt movement of the controls under certain conditions could over stress the airframe. Airbus has had incidents where the tail section has been damaged due to manual flight control inputs. However, I would also leave open the terrorism aspect until definitively refuted by a physical examination of the wreckage and/or the telemetry systems (the cockpit voice recorder, the flight data recorder, and the tape from the maintenance data recorder). “Meteorologists said the Air France jet entered an unusual storm with 100 mph (160 kph) updrafts that acted as a vacuum, sucking water up from the ocean. The moist air rushed up to the plane’s high altitude, where it quickly froze in minus-40 degree temperatures. The updrafts also would have created dangerous turbulence.”

This information was strongly refuted by the Weather Channel yesterday. They labeled this information as “bogus” and challenged the source to come forward to defend their claim.

Although I am not a weatherman, I do understand aviation meteorology to some degree and agree with the Weather Channel on this one. Specifically, they pointed out the difference in the location of the tropopause (a division between the stratosphere and the lower troposphere) in the area where the aircraft disappeared and the continental US.

This difference accounts for the height of the thunderheads in the region (the tropopause is lower the further you travel from the equator) leading to a false impression of the strength of the cells. Also, the temperature differences between the top of the thunderhead and sea level are less pronounced at the equator reducing the strength of updrafts.

The WC estimated that maximum updrafts would have been in the range of 40 mph not 100 mph.

However, the theory of computer malfunction is worth pursuing. The Australians experienced commanded pitch-down on an Airbus 330 when the angel-of-attack (AOA) spiked as a result of either the sensor or the air data computer malfunctioned.

What makes the computer malfunction theory interesting is that the fly-by-wire system in the Airbus uses three sets of ‘laws’ to translate autopilot or sidestick inputs into flight control movement. These laws (Normal, Alternate, and Manual) are selected according flight/equipment conditions.

In the Normal and Alternate laws the pilot’s input on the sidestick is modulated by the computer to prevent over stressing the airframe. However, in Manual mode the pilot’s inputs are not modulated (limited) meaning that an abrupt movement of the controls under certain conditions could over stress the airframe.

Airbus has had incidents where the tail section has been damaged due to manual flight control inputs.

However, I would also leave open the terrorism aspect until definitively refuted by a physical examination of the wreckage and/or the telemetry systems (the cockpit voice recorder, the flight data recorder, and the tape from the maintenance data recorder).

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