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Originally posted by _BoneZ_
I also do not personally believe that a large 757 crashed into the Pentagon. However, there are far too many witnesses that visually saw a plane impact the Pentagon and far too few that saw a "fly-over".
And as I stated earlier in this thread, CIT's hostile and unprofessional manner automatically makes them lose credibility points, on top of the fact that many of their "theories" are ridiculous and baseless.
Originally posted by -PLB-
Anyway, this topic is very specialized, I can only give my layman common sense opinion. If FDR data from other planes does not show similar paths, then something strange is going on indeed.
"If the Present Position is incorrect when the INS is initialized, it will NOT "re-align" itself! It should be shut down and re-initialized with the correct Present Position."
"An error in position input during initial alignment, apart from obvious bias, will give the wrong "G" initial value and induce wrong vertical acceleration (delta between the sensed real one and the erroneous one)"
Since inertial systems accumulate position errors as a function of time, the position information being used by the FMC is slowly accumulating errors. These position errors can be detected by observing the position of the airplane on the HSI map. If an extended ground delay occurs and a significant map error is noticed the IRS should be realigned and present position re-entered [on the ground].
"...on cursory examination something is screwy, those things are so accurate in the 75, 76, 73, and FK100, that we always, always put in the exact gate coordinates on each gate at each airport when preparing to go, so that -may- indicate some trickery of some kind...."
"....when pilots align the IRS, the Present Position from the Jeppesen Gate Coordinates chart is input by the FO and it is double checked by the Captain. Pilots especially pay close attention to this procedure on a long flight (such as it was reported IAD-LAX)..... there is no possible way, even if the FO and Captain input the wrong Lat/Long with aligned IRU's, that an American Airlines 757 could align an error/offset in flight for such a large error in such a short time as is depicted in the data. Garbage in = Garbage out...... the Capt and FO would have also noticed such a large error if not at the gate, but during taxi to the runway, and if such a large error could not be corrected prior to departure, they would have had to return to the gate."
Originally posted by -PLB-
reply to post by TigerTracks
So the issue is not the gate number the plane left (as that can not be determined because of drift)
.... the IRS was not aligned. If it really is a strict procedure, which those sources seem to indicate, it is indeed odd, I can't think of a sensible explanation for it.
One thing that is not really clear to me though is how it was determined that AA77 had no GPS on board that could auto align the IRS. Is this confirmed by AA?
Originally posted by TigerTracks
Originally posted by -PLB-
reply to post by TigerTracks
There are basically two questions that need answers, how accurate is the IRS (required to be) when the plane is on the ground and what position do pilots use as reference coordinates at the gate. We can for certain say that the data is not very accuracy when the plane is on the ground. This can be normal for an IRS, or it can mean that the IRS was malfunctioning, or it can mean that the data has been tampered with. I suspect it is normal for an IRS. As for which coordinates pilots use, only pilots can answer that.
The coordinates the pilots use to input lat/long into the IRS are above your post and the post you replied to. They use the lat/long coordinates at the gate. Pilots cannot depart with an IRS malfunctioning, nor will they depart the gate without the IRS fully aligned to the gate.
Read more here from a conversation with an American Airlines Captain.
Click
Originally posted by trebor451
Originally posted by TigerTracks
Originally posted by -PLB-
reply to post by TigerTracks
There are basically two questions that need answers, how accurate is the IRS (required to be) when the plane is on the ground and what position do pilots use as reference coordinates at the gate. We can for certain say that the data is not very accuracy when the plane is on the ground. This can be normal for an IRS, or it can mean that the IRS was malfunctioning, or it can mean that the data has been tampered with. I suspect it is normal for an IRS. As for which coordinates pilots use, only pilots can answer that.
The coordinates the pilots use to input lat/long into the IRS are above your post and the post you replied to. They use the lat/long coordinates at the gate. Pilots cannot depart with an IRS malfunctioning, nor will they depart the gate without the IRS fully aligned to the gate.
Read more here from a conversation with an American Airlines Captain.
Click
lol..Cap't Bob returns! He just can't get enough! Multiple posts with P4T talking-points and nothing but links back to P4T. Registered only 2 days ago, no posts at all other than this thread begin by Labtop, and Cap't Bob went off on Labtop over on his P4T website a few days ago. He must really like this place. His ego certainly won't let him stay away.
Originally posted by LaBTop
AT LAST, THE "WATERGATE" of 9/11 :
Originally posted by TigerTracks
By your claims, LaBTop must be Capt Bob as well with all those links to P4T in his OP... lol
I've read through your posts here trebor. The majority of them attacking "Capt Bob". Do you ever talk about the topic? Or do you just obsess. Well, your posts clearly tell the tale.
I heard he had to block several of your pseudo email addresses due to your harassment, one after another, and threatened to report you for cyber stalking. Is that true?
Are you the same William Paisley that washed out of flight school and couldnt make it to the front seat? Never able to get an FAA pilot certificate? While also leaving your fiance at the altar? Quite a classy guy you must be...
Can you provide a quote from Balsamo asserting gate D9 or D11 as claimed by LaBTop in the OP? Seems LaBTop doesn't want to answer that question.
Originally posted by waypastvne
Altitude above you.
Runway behind you.
Doctor in a V tail.
Pilots for 911 truth.edit on 8-8-2011 by waypastvne because: (no reason given)
Originally posted by TigerTracks
Can you provide a quote from Balsamo asserting gate D9 or D11 as claimed by LaBTop in the OP? Seems LaBTop doesn't want to answer that question.
Originally posted by waypastvne
Originally posted by TigerTracks
Can you provide a quote from Balsamo asserting gate D9 or D11 as claimed by LaBTop in the OP? Seems LaBTop doesn't want to answer that question.
This is not the question we are interested in. What we want to know is:
Did you sponge off of LabTop and live on a couch in his basement just prior to having your hissy fit Truther fight? Or is this one a break in the tradition?
Altitude above you.
Runway behind you.
Doctor in a V tail.
Pilots for 911 truth.
Originally posted by tezzajw
It's amazing that trebor451 (robert spelled backwards - obsessive much?) and waypastvne are able to attack TigerTracks, without even trying to comment on the OP. waypastvne deliberately sidesteps a question about the OP and then takes the thread off topic by asking about sleeping on a couch??? Seriously???
Mods - what has ATS come to?
LaBTop, I asked you a couple of days ago if you could please link me to a source quote for where Balsamo stated that the alleged push gate was D9 or D11.edit on 8-8-2011 by tezzajw because: more
15). Posting: You will not Post any material that is knowingly false, misleading, or inaccurate. You will not solicit personal information from any member. You will not use information gathered from this website to harass, abuse or harm other people.
Originally posted by waypastvne
Did you sponge off of LabTop and live on a couch in his basement just prior to having your hissy fit Truther fight? Or is this one a break in the tradition?
tumetuestumefaisdubien post Mar 2 2011, 06:10 AM Post #39
Group: Valued Member
Posts: 997
Joined: 7-November 07
From: Prague or France
Member No.: 2,452
(rob balsamo @ Mar 1 2011, 01:49 PM) *
The above is claimed to be an exchange between "Ground Control" and "American 77" requesting push off the gate and taxi to runway 30.
There are many problems with the above.
Yeah, there's maybe also the problem I (unwittingly) mystified Mr. Farmer that our FDR plane pushed from the gate at 8:12.
In fact it was most probably at 8:10:46...so at 8:12 it would be a bit late to ask the tower...
EDIT: I've also plotted and subsequently overlayed this:
(IMG:xmarinx.sweb.cz...)
Not to support Mr. Stutt, but to show how almost exactly the pathway pattern fits the pattern of the relatively narrow taxiways, contrary to some of the latest Mr. Farmer's "ideas" about the INS in-flight alignments. And there's I think clearly the push from the southern side of the Concourse D is possible and could be quite logical, but definitely not confirming the gate D26. (and yes, to avoid silly notes, I did exactly adjusted the overlay picture scale to have exactly same dimensions as the original pathway pattern)
The red circle at the bottom is a place of possible adjustment of the INS (as my friend pilot suggested to me as a possibility) where the plane is standing, heading -67.8 westwestnorthwards (which happens to be almost exactly our runway angle) all the time 12:17:39-12:18:53, yet the coordinates "mysteriously" shift >38m southwards during this timespan and if I would exclude this shift, the pathway pattern then would fit the taxiways almost absolutely exactly for the plane departing the Gate D20 ...but I'm not insisting on the idea, because it would also need an assumption the coordinates were shifted after the fact, which I would not much wonder, judging after comparing Under Tow's coordinates with the ones from Mr. Stutt and then yet with the ones made in NTSB ...they're always somehow different, usually hundreds of meters...yet the pattern remains.
Balsamo's Post #40 :
rob balsamo post Mar 2 2011, 06:56 AM Post #40
Group: Admin
Posts: 8,719
Joined: 13-August 06
Member No.: 1
Yes, i'm not surprised "Stutt's" coordinates push from the south side after adjusted for the offset. Read more of Legge/Stutt errors here.
pilotsfor911truth.org...&p=10795490
But even then, you still have the aircraft in the grass on Taxi and thrashing the south wall of Concourse Delta.
Also, (and repeated for perhaps the 5th time), aircraft do not start their engines until after pushback.
How can Warren Stutt claim to have a position at the gate, and lat/long plots during pushback, if the FDR doesnt start to record until engines are started?
Answer, he doesnt.
For the third time, see here.
pilotsfor911truth.org...;#entry10795540
It seems only those with a verified aviation background understand this.
And for perhaps the 4th time, the aircraft should have never left the ground with an IRS more than 1/2 mile in error.