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Search: Posts Made By: Bis47
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Forum: Rumours & News
2nd Mar 2010, 08:59
Replies: 3,239
Views: 1,137,464
Posted By Bis47

Flying the AOA?

If only things were that simple!

Aircraft performance is much more complex than simple aerodynamics theory.

Engine efficciency is an important element, and this one is a function of many...
Forum: Rumours & News
11th Jan 2010, 10:09
Replies: 3,239
Views: 1,137,464
Posted By Bis47

In that kind of weather, some margin about normal...

In that kind of weather, some margin about normal Vref should be applied, isn't it?
Forum: Rumours & News
11th Jan 2010, 10:01
Replies: 3,239
Views: 1,137,464
Posted By Bis47

What the storry is all about

Hello WojtekSz (and many others without real insight of "dead stick" landing)

Like many "High Academics", you apply mathematics to simplified models of the real world. That is, in essence,...
Forum: Rumours & News
13th Mar 2009, 09:57
Replies: 3,239
Views: 1,137,464
Posted By Bis47

Red face Robust solutions

[SIZE=2]
Robust solutions ... they are available since the fifties! :ugh:[/FONT]
Forum: Rumours & News
7th Mar 2009, 09:55
Replies: 3,239
Views: 1,137,464
Posted By Bis47

Delta roll Back : with fuel from China?

My memory can fail ...

Did I really read that the Delta Airplane that recently experienced a roll back over the Rockies also was originated from China?

If true ... that is too much of a...
Forum: Rumours & News
20th Jan 2009, 08:24
Replies: 3,239
Views: 1,137,464
Posted By Bis47

Limited info

The recent AD seems to admit that similar (very similar) fuel feed troubles might happen, and so they recommend some preventive actions.

Authorities keep silent about one information and one...
Forum: Rumours & News
7th Jan 2009, 08:38
Replies: 3,239
Views: 1,137,464
Posted By Bis47

Did they really determine the causes?

Hello!



and later :

Emphasis of mine.

Virtually identical ice release both sides, causing virtually identical fuel restrictions?
Forum: Rumours & News
12th Aug 2008, 07:34
Replies: 3,239
Views: 1,137,464
Posted By Bis47

Corner cutting?

Airframe manufacturers DID cut corners in the past.
[Documented facts ... with authorities complicity]

Airbus software got thousands of "improvements" along the years ... Improvements, or...
Forum: Rumours & News
28th Jul 2008, 08:29
Replies: 3,239
Views: 1,137,464
Posted By Bis47

Oups, sorry for the confusion ... "Water in...

Oups, sorry for the confusion ...

"Water in fuel" messages were indeed mentionned a few times in the early pages of this thread. And they were not questionned. There seems to be a consensus that...
Forum: Rumours & News
27th Jul 2008, 08:33
Replies: 3,239
Views: 1,137,464
Posted By Bis47

Smile To Peter Brown

I understand very well your concern about the "temperature history" of BA38. http://www.pprune.org/forums/images/infopop/icons/icon14.gif

I follow this thread since post # 1 and I didn't get...
Forum: Rumours & News
6th Jul 2008, 07:51
Replies: 3,239
Views: 1,137,464
Posted By Bis47

Approach Flaps setting

While configured with "landing Flaps", and flying at Vref, you have 30% margin against the stall (or minimum flyable airspeed, wahatever the terminology). Il, at that time, you retract flaps to...
Forum: Rumours & News
21st May 2008, 07:23
Replies: 3,239
Views: 1,137,464
Posted By Bis47

Environement Enveloppe

Reading the chart, - 80° sat is the lowest temp limit.

Since this is not a frequent occurrence, I wonder how much testing was done to substantiate that ...
Forum: Rumours & News
19th May 2008, 07:28
Replies: 3,239
Views: 1,137,464
Posted By Bis47

Flaps settings

Generally speaking ... (I'm not qualified B777 ... by far).

There is a flaps setting called "approach flaps setting" that allows a N-1 go-around with 2+ % climb gradient.

That "approach"...
Forum: Rumours & News
15th May 2008, 07:53
Replies: 3,239
Views: 1,137,464
Posted By Bis47

Unusual factors, exceptionnal set of circumstances

As far as I can remember early comments :

- Multiday rather cold winter operations
- Fuel tank icing messages
- Actual flight much higher than initial operational flight plan (to satisfy ATC...
Forum: Rumours & News
2nd May 2008, 10:18
Replies: 3,239
Views: 1,137,464
Posted By Bis47

Indisputable, really ?

1. Both engines retarded somewhat above flight idlle. Too bad the AAIB does not state exactly how much ...

2. The crew saved the day? Can you bring some insight? Because, according to the AAIB :...
Forum: Rumours & News
12th Apr 2008, 18:08
Replies: 3,239
Views: 1,137,464
Posted By Bis47

I have some ... Not on a big scale, I do admit. ...

I have some ... Not on a big scale, I do admit.
But I have some deep knowledge of flight operations.

I confirm that reliable sofware is already available for terrain visualisation and terrain...
Forum: Rumours & News
12th Apr 2008, 08:57
Replies: 3,239
Views: 1,137,464
Posted By Bis47

Software engineering

Are you really aware of the state of the art in flight simulation? Very realistic 3D rendering of landscape and obstacle around airports an beyong. No need for terrabytes of data ...

Obstacles...
Forum: Rumours & News
10th Apr 2008, 18:01
Replies: 3,239
Views: 1,137,464
Posted By Bis47

Gliding considerations

After this one, I'll stop!

Thank You FullWings for showing some interest in piloting techniques considerations.


Not significantly : Except for the wind, flying a jet at best L/D always...
Forum: Rumours & News
10th Apr 2008, 08:22
Replies: 3,239
Views: 1,137,464
Posted By Bis47

Simple software needed

I fully agree. There might be as well a data base of obstacles, allowing for the best way to avoid obstacles ...

However ... I have a more readily available solution :

1. Just tell us where...
Forum: Rumours & News
9th Apr 2008, 18:44
Replies: 3,239
Views: 1,137,464
Posted By Bis47

Gliding speed

It is definitively false that this is the first occurence of total engine failure in an airliner ... Quite a few occured in the past ... This one is not the last one. Especially if the cause of the...
Forum: Rumours & News
9th Apr 2008, 07:33
Replies: 3,239
Views: 1,137,464
Posted By Bis47

Hints towards a recommandation

IMHO, one of the immediate recommandations that should be given :

Publish the best glide speed in typical flaps/landing gear configurations, and train the crew to react to full engine failure. ...
Forum: Rumours & News
26th Feb 2008, 20:42
Replies: 3,239
Views: 1,137,464
Posted By Bis47

Fuel flow restriction slowly building up

Hello everybody.

I'm new to this forum. French my native language. No modern jet experience. Some airmanship (I hope). Be clement we me ...

I think that we are perhaps misleaded by the...
Showing results 1 to 22 of 22


 
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