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Search: Posts Made By: Owain Glyndwr
Showing results 1 to 19 of 19
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Forum: Rumours & News
13th Apr 2013, 07:59
Replies: 345
Views: 88,205
Posted By Owain Glyndwr

Did I ever say there wasn't?

Did I ever say there wasn't?
Forum: Rumours & News
11th Apr 2013, 17:35
Replies: 345
Views: 88,205
Posted By Owain Glyndwr

Oh I would accept Gordon's word - he was a friend...

Oh I would accept Gordon's word - he was a friend of mine, and I wish he were still around because I would relish reading his comments on some of the things written about his work.

What I don't...
Forum: Rumours & News
11th Apr 2013, 14:25
Replies: 345
Views: 88,205
Posted By Owain Glyndwr

And I'm still waiting for you to supply evidence...

And I'm still waiting for you to supply evidence to justify your value of 20.5 degrees for alphastall.


I'll take that as a yes then.
Forum: Rumours & News
11th Apr 2013, 12:07
Replies: 345
Views: 88,205
Posted By Owain Glyndwr

Yes - it's called flight testing. ...

Yes - it's called flight testing.




So you accept that the current laws are capable to being used to better effect?
Forum: Rumours & News
10th Apr 2013, 16:18
Replies: 345
Views: 88,205
Posted By Owain Glyndwr

Conf iture Explain to me please how a remark...

Conf iture

Explain to me please how a remark made by Gordon during a demonstration of the FBW concept on an A300 a year before the A320 ever flew becomes a definitive statement of A320...
Forum: Rumours & News
9th Apr 2013, 18:45
Replies: 345
Views: 88,205
Posted By Owain Glyndwr

Ashling Yes, that is correct. ...

Ashling



Yes, that is correct.

Plenty of early NACA evidence that on straight wings the loss is 2 to 3 degrees, but jolly difficult to find anything for modern swept wings (proprietary...
Forum: Rumours & News
9th Apr 2013, 17:51
Replies: 345
Views: 88,205
Posted By Owain Glyndwr

Ashling That is not at all what I am...

Ashling



That is not at all what I am saying :=

As he enters ground effect the lift at a given alpha will increase and the drag at a given CL will decrease. This is not the same as saying...
Forum: Rumours & News
9th Apr 2013, 17:01
Replies: 345
Views: 88,205
Posted By Owain Glyndwr

That is your number. I have yet to see any...

That is your number. I have yet to see any published numerical data from AI to support stall at 20.5 deg AoA with CONF 2 (or 3).


.

You are ducking the issue. Even if the A320 number is...
Forum: Rumours & News
9th Apr 2013, 06:24
Replies: 345
Views: 88,205
Posted By Owain Glyndwr

CONF iture You are missing the point....

CONF iture



You are missing the point. You say that the aircraft had 3.5 deg (now escalated to 4 deg see below) margin to stall, but this is based on free air values. The Roswell accident...
Forum: Rumours & News
8th Apr 2013, 06:56
Replies: 345
Views: 88,205
Posted By Owain Glyndwr

CONF iture Thank you for clarifying your...

CONF iture

Thank you for clarifying your position. Previously I had not realised that you were stating your personal preferences.

Two small comments and then I shall shut up.



This...
Forum: Rumours & News
4th Apr 2013, 06:46
Replies: 345
Views: 88,205
Posted By Owain Glyndwr

@ CONF iture So is your recommendation...

@ CONF iture



So is your recommendation that if you are going to ditch the pilot should switch (or be switched) to direct law?
If so, at what point should this be done?
Forum: Rumours & News
3rd Apr 2013, 13:45
Replies: 345
Views: 88,205
Posted By Owain Glyndwr

@ CONF iture You have made similar...

@ CONF iture



You have made similar statements several times, but unless I have missed something, you have never suggested how this might be done. Do you have any positive proposals for how the...
Forum: Rumours & News
31st Mar 2013, 17:30
Replies: 345
Views: 88,205
Posted By Owain Glyndwr

What has that to do with the relevant...

What has that to do with the relevant vulnerability of rear and wing mounted engines to bird strike? Nothing that I can see;surely the association of bird strikes with no ditching just reflects the...
Forum: Rumours & News
31st Mar 2013, 14:58
Replies: 345
Views: 88,205
Posted By Owain Glyndwr

Just for the record, 21% of these were...

Just for the record, 21% of these were jet/turbofans on the wing, 34% rear engines and 45% propeller driven. Not much evidence there that rear engines are less susceptible to bird strike.
Forum: Rumours & News
27th Mar 2013, 16:30
Replies: 345
Views: 88,205
Posted By Owain Glyndwr

He's not the only one:- Source: Airbus...

He's not the only one:-

Source: Airbus submission to NTSB Flight 1549 investigation

11 deg is nearly in the middle of that range, but departure away from that optimum on either side is bound...
Forum: Rumours & News
25th Mar 2013, 14:13
Replies: 345
Views: 88,205
Posted By Owain Glyndwr

Ashling, Thank you for that google tip; the...

Ashling,

Thank you for that google tip; the Airbus submission to the NTSB was particularly interesting, as I hadn't realised that when in alpha-protect the aircraft develops a phugoid. In normal...
Forum: Rumours & News
25th Mar 2013, 08:18
Replies: 345
Views: 88,205
Posted By Owain Glyndwr

Well one needs to exceed the alpha-protection...

Well one needs to exceed the alpha-protection threshold to trigger alpha-protect mode doesn't one?
The principle of alpha-protection is well documented though, and it is difficult (for a non-pilot)...
Forum: Rumours & News
22nd Mar 2013, 12:10
Replies: 345
Views: 88,205
Posted By Owain Glyndwr

Confiture, Forgive my ignorance, but there...

Confiture,

Forgive my ignorance, but there is something I do not understand here. On March 8th you said:
.

Now if the object is to minimise the rate of descent (flight path gradient) at impact...
Forum: Rumours & News
21st Mar 2013, 18:26
Replies: 345
Views: 88,205
Posted By Owain Glyndwr

Confiture So are you now suggesting...

Confiture



So are you now suggesting that alpha prot mode was a factor in limiting Capt. Sullenberger's ability to flare?
Showing results 1 to 19 of 19


 
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