AF447
Joined: Jan 2008
Posts: 760
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From: Herts, UK
Could that 'sensor' holds any stored information or secrets internally? Perhaps, how it came to be hanging in there, of importance...
The simple fact that 'skin' parts and possibly further appendages are still floating about in the great ocean could however, be of some considerable importance.
The simple fact that 'skin' parts and possibly further appendages are still floating about in the great ocean could however, be of some considerable importance.
Joined: Jul 2009
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From: France - mostly
Re: Will Fraser (3721)
I doubt that an IMU would be fitted to a wing fairing. Could it be part of an Ariane booster?
During the search wreckage moved northwards. Georgetown is approx 1600 NM NW of Last Rept Psn.
regards,
HN39
I doubt that an IMU would be fitted to a wing fairing. Could it be part of an Ariane booster?
During the search wreckage moved northwards. Georgetown is approx 1600 NM NW of Last Rept Psn.
regards,
HN39
Last edited by HazelNuts39; 17th July 2009 at 16:44. Reason: distance added
Joined: Apr 2009
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From: Petaluma
A fairing is not part of the wing, that is correct. It also could be a cousin, the fairing under the Horizontal Stabilizer. From its shape and the contour of the "leading edge" negative, it too could have been oriented as above.
If near the HS, it could be associated with the "trimmable" Horizontal Stabilizer piece found as described by BEA. The "cutout" (negative) in the Aluminum is hard to judge, but I do believe it was near an airfoil.
If near the HS, it could be associated with the "trimmable" Horizontal Stabilizer piece found as described by BEA. The "cutout" (negative) in the Aluminum is hard to judge, but I do believe it was near an airfoil.
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From: USA
Joined: Jun 2009
Posts: 41
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From: Colorado
Will Fraser
You're not even close
It also could be a cousin, the fairing under the Horizontal Stabilizer. From its shape and the contour of the "leading edge" negative, it too could have been oriented as above.
If near the HS, it could be associated with the "trimmable" Horizontal Stabilizer piece found as described by BEA. The "cutout" (negative) in the Aluminum is hard to judge, but I do believe it was near an airfoil.
If near the HS, it could be associated with the "trimmable" Horizontal Stabilizer piece found as described by BEA. The "cutout" (negative) in the Aluminum is hard to judge, but I do believe it was near an airfoil.
Joined: Apr 2009
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From: Petaluma
HazelNuts39
I would locate an IMU where the motion is least susceptible to "trim".
The wing, when it moves, as it is located nearer the cg, is more likely to be an actual rather than a trimmable, movement. Less susceptible to transient, higher value accelerations as well. Just guessing.
The piece might fit around the VS also. That would make it part of the Fuselage.
I would locate an IMU where the motion is least susceptible to "trim".
The wing, when it moves, as it is located nearer the cg, is more likely to be an actual rather than a trimmable, movement. Less susceptible to transient, higher value accelerations as well. Just guessing.
The piece might fit around the VS also. That would make it part of the Fuselage.
Joined: Jun 2009
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From: Colorado
rgbrock1
It's not part of a flight surface nor a fairing. It's part of the fuselage. I 'think' it's part of the forward fuselage.
That's my call from simply looking at the photo. If you read some of the text there are further 'clues' that supports my observation.
So, pray tell, what do YOU think it is?
That's my call from simply looking at the photo. If you read some of the text there are further 'clues' that supports my observation.
Joined: Jan 2005
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From: W of 30W
Originally Posted by PJ2
The QANTAS accident occurred through elevator deflection, however. Caught quickly, it is controllable through pilot input. I think what takata stated regarding giving credit to the engineers and pilots is the correct view and coincides with my own experience in general - it is an easily controlled set of circumstances if caught quickly - and it's what pilots do - just like the QANTAS guys did.
Joined: Jun 2009
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From: NYC
IMU vs IRU
First post after finding this thread about 150 or so pages ago, so be gentle.
From everything I've read here and other sources, the IR part of the ADIRUs only rely on gyros -- and do not include accelerometers -- whereas IMUs use both. Also from what I've read, it appears that for the ADIRU the gyros are contained within the IR part of the box in the avionics bay, not externally (and there really is no reason for them to be).
So, as this has not yet been confirmed as part of AF 447 I have to go with HazelNuts' suggestion and for now assume it might be a part of an Ariane (there just happened to be a launch that included two boosters on July 1st).
From everything I've read here and other sources, the IR part of the ADIRUs only rely on gyros -- and do not include accelerometers -- whereas IMUs use both. Also from what I've read, it appears that for the ADIRU the gyros are contained within the IR part of the box in the avionics bay, not externally (and there really is no reason for them to be).
So, as this has not yet been confirmed as part of AF 447 I have to go with HazelNuts' suggestion and for now assume it might be a part of an Ariane (there just happened to be a launch that included two boosters on July 1st).
Joined: Aug 2000
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From: Patterson, NY
jimbeetle:
So, as this has not yet been confirmed as part of AF 447 I have to go with HazelNuts' suggestion and for now assume it might be a part of an Ariane (there just happened to be a launch that included two boosters on July 1st).
The only thing I would question about this is: how many Ariane launches
have occured in the area? And why, until now, have no other discarded parts of this vessel ever wound up on a beach in Guyana?
So, as this has not yet been confirmed as part of AF 447 I have to go with HazelNuts' suggestion and for now assume it might be a part of an Ariane (there just happened to be a launch that included two boosters on July 1st).
The only thing I would question about this is: how many Ariane launches
have occured in the area? And why, until now, have no other discarded parts of this vessel ever wound up on a beach in Guyana?
Joined: Jun 2009
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From: in a plasma cocoon
Ariane 5 booster ?
Jeff
Correction: it seems that there are no IMU in the Ariane boosters, only in the equipment bay of the main stage that goes to orbit with the payload.
Last edited by Hyperveloce; 17th July 2009 at 19:59.
Joined: Apr 2009
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From: Petaluma
Keeping an open mind, of course, but authorities who have seen the debris call it 447. White outside, etc. The lamination of foam and two layers of Al is almost assuredly AB, and since the IMU was attached to the panel, well, there is a problem.
Accelerometers are found on AB, else there would be no aerodynamic load protections?
Accelerometers are found on AB, else there would be no aerodynamic load protections?
