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Search: Posts Made By: gravity32
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Forum: Tech Log
29th Sep 2011, 12:37
Replies: 70
Views: 28,005
Posted By gravity32

Does Stafford's bank angle look like 85 degrees?...

Does Stafford's bank angle look like 85 degrees? The plane can't make the turn without it. And it can't make the turn with it either, as it produces a load of 12g.

To get round the curve at...
Forum: Tech Log
29th Sep 2011, 11:07
Replies: 70
Views: 28,005
Posted By gravity32

A graph with no numbers on the x axis does not do...

A graph with no numbers on the x axis does not do much.

Have you forgotten this image of an honest witness?
...
Forum: Tech Log
29th Sep 2011, 08:08
Replies: 70
Views: 28,005
Posted By gravity32

I trust the witnesses to impact, and the...

I trust the witnesses to impact, and the witnesses to the plane having only a slight bank, making the north path impossible. You must be joking, right? Do you get a kick out of this?

The radar...
Forum: Tech Log
29th Sep 2011, 07:42
Replies: 70
Views: 28,005
Posted By gravity32

A320Slave, You are clutching at straws. Can...

A320Slave,

You are clutching at straws. Can you prove the plane did not hit the Pentagon?

I don't think so.
Forum: Tech Log
27th Sep 2011, 01:42
Replies: 70
Views: 28,005
Posted By gravity32

They don't say there was no damage. They say the...

They don't say there was no damage. They say the damage was done using explosives to create an illusion of plane impact. Two planes had already been flown into buildings, so why not a third? It makes...
Forum: Tech Log
24th Sep 2011, 06:45
Replies: 70
Views: 28,005
Posted By gravity32

For those interested in what really constitutes...

For those interested in what really constitutes corroboration and cherry picking, here is a list:

Over a hundred people are on record as saying they saw the plane hit the Pentagon.
About 13...
Forum: Tech Log
24th Sep 2011, 05:38
Replies: 70
Views: 28,005
Posted By gravity32

A320Slave, For the plane to pass near the...

A320Slave,

For the plane to pass near the Navy Annex with wings level it would have to get into a steep bank to deviate round the Citgo service station. Do you honestly think Stafford and Prather...
Forum: Tech Log
24th Sep 2011, 02:28
Replies: 70
Views: 28,005
Posted By gravity32

A320Slave, would you mind reducing the size of...

A320Slave, would you mind reducing the size of your image to avoid upsetting the text?

Regarding the course of the plane, let us see how it looks if we take into account the best evidence we have...
Forum: Tech Log
22nd Sep 2011, 15:44
Replies: 70
Views: 28,005
Posted By gravity32

A320, Of course, if you slow the plane down and...

A320,
Of course, if you slow the plane down and ignore the direction the plane was flying prior to the alleged deviation round the Citgo service station, you can get it to perform a viable curve....
Forum: Tech Log
22nd Sep 2011, 07:53
Replies: 70
Views: 28,005
Posted By gravity32

Roll rate again

This thread started with a discussion of roll rate for a 757. Various opinions were expressed. Eventually it became clear that roll rate was not the right question for the case at hand. Roll rate...
Forum: Tech Log
20th Sep 2011, 04:27
Replies: 70
Views: 28,005
Posted By gravity32

Yes the bank was positve, but erratic, as the...

Yes the bank was positve, but erratic, as the plane did its circling descent, until about 20 seconds from impact, when the plane then flew straight to impact.

The bump in the pitch graph at 5...
Forum: Tech Log
19th Sep 2011, 17:17
Replies: 70
Views: 28,005
Posted By gravity32

The file is in Excel. I can copy it to Word and...

The file is in Excel. I can copy it to Word and then to a pdf. However photobucket is only interested in images like jpg.

Why do the posting rules say I can't post attachments?

So I printed...
Forum: Tech Log
19th Sep 2011, 16:55
Replies: 70
Views: 28,005
Posted By gravity32

skwinty, I would like to show you a graph of...

skwinty,

I would like to show you a graph of roll and pitch for the last 30 seconds, during which full power was applied. There was a significant dive then a levelling off. Last pitch reading was...
Forum: Tech Log
19th Sep 2011, 07:44
Replies: 70
Views: 28,005
Posted By gravity32

barit1, re your posts #26 and #39, and all those...

barit1, re your posts #26 and #39, and all those who have helped with this question,

You may be interested to see the path the plane would have flown, if it had passed north of the Citgo service...
Forum: Tech Log
13th Apr 2011, 11:30
Replies: 70
Views: 28,005
Posted By gravity32

barit1, that is a very interesting article....

barit1, that is a very interesting article. Thanks.

It is clear that height and excess speed can provide power to maneuvre. Certainly the 757 had plenty of speed but very little height. The...
Forum: Tech Log
11th Apr 2011, 12:42
Replies: 70
Views: 28,005
Posted By gravity32

Machinbird, these guys are not psychos. They are...

Machinbird, these guys are not psychos. They are smart operators who have figured out that they can sell DVDs by creating controversey. They do harm and should be opposed.

My revised calculations...
Forum: Tech Log
27th Mar 2011, 03:43
Replies: 70
Views: 28,005
Posted By gravity32

There is of course no doubt the plane hit the...

There is of course no doubt the plane hit the Pentagon. There are many witnesses, including three of their star north-of-Citgo witnesses, Lagasse, Turcios and Brooks, who all said they saw the plane...
Forum: Tech Log
27th Mar 2011, 01:45
Replies: 70
Views: 28,005
Posted By gravity32

It seems to me I have asked the wrong question....

It seems to me I have asked the wrong question. The term "roll rate" appears to relate to a stabilized process in which the initial inertia has been overcome.

In a plane like a B757 the wings are...
Forum: Tech Log
26th Mar 2011, 15:44
Replies: 70
Views: 28,005
Posted By gravity32

With half a second allowed for roll time the...

With half a second allowed for roll time the radius of turn is 1893 feet, the force is 9.97g, the bank angle 84.3 degrees.

It couldn't survive the g-force and if it did, nobody saw that bank!
Forum: Tech Log
26th Mar 2011, 14:59
Replies: 70
Views: 28,005
Posted By gravity32

My Google searches have not been fruitful. Where...

My Google searches have not been fruitful. Where did you find that?
Forum: Tech Log
26th Mar 2011, 11:57
Replies: 70
Views: 28,005
Posted By gravity32

I didn't think spoilers could be deployed at such...

I didn't think spoilers could be deployed at such high speed, 460 knots. I thought they would not be needed at high speed as the ailerons would have all the authority anyone would need. I also...
Forum: Tech Log
26th Mar 2011, 01:38
Replies: 70
Views: 28,005
Posted By gravity32

Thanks B44. That is a good clear response. If 3...

Thanks B44. That is a good clear response. If 3 seconds is the quickest the roll could be done, this manoeuvre is out of the question as there are only about 4 seconds available for the whole thing,...
Forum: Tech Log
25th Mar 2011, 15:38
Replies: 70
Views: 28,005
Posted By gravity32

Why the interest in a Boeing 757?

I have been involved in arguments with people over some of the events of 9/11. They are arguing that the official account of the impact of AA77 on the Pentagon cannot be correct because they found a...
Forum: Tech Log
25th Mar 2011, 13:35
Replies: 70
Views: 28,005
Posted By gravity32

Acrobatic planes not of interest in this case

Can anybody give me a figure for how long it would take in a standard Boeing757 to go from an 80 degree bank to wings level at a high speed?
Forum: Tech Log
21st Mar 2011, 08:28
Replies: 70
Views: 28,005
Posted By gravity32

Wow. It seems some aircraft can roll fast. ...

Wow. It seems some aircraft can roll fast.

I came across this at Aviation Week:
"Aircraft with very long wings, and in particular airplanes with engines distributed outboard along the wings,...
Forum: Tech Log
20th Mar 2011, 07:53
Replies: 70
Views: 28,005
Posted By gravity32

Well, that is a range of responses. Let's make...

Well, that is a range of responses. Let's make the question more specific.

Say a B 757 was approaching the circuit area, still at high speed, and the pilot had a short blackout. He woke up to...
Forum: Tech Log
19th Mar 2011, 05:25
Replies: 70
Views: 28,005
Posted By gravity32

Roll rate

What is the maximum roll rate that can be achieved in a plane like a Boeing 757. I assume this is normally limited by the computer. Is the maximum roll rate affected by air speed? If there was no...
Showing results 1 to 27 of 27


 
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