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Search: Posts Made By: astonmartin
Showing results 1 to 35 of 36
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Forum: Rumours & News
11th Jan 2021, 11:50
Replies: 871
Views: 963,566
Posted By astonmartin

Pitch up moment

NWA SLF

The whole discussion about pitch-up tendency on B737's stems from why MCAS is needed on the MAX.

It has NOTHING to do with engine thrust. Is has to do with the position of the engines....
Forum: Rumours & News
10th Jan 2021, 15:04
Replies: 871
Views: 963,566
Posted By astonmartin

Owen61 Nothing, because the -500 engines are...

Owen61

Nothing, because the -500 engines are still under the wing, not in front of it.
Forum: Rumours & News
10th Jan 2021, 14:58
Replies: 871
Views: 963,566
Posted By astonmartin

@ vanHorck When at altitude there is a windspeed...

@ vanHorck When at altitude there is a windspeed of say 70 knots and you turn into the wind, your groundspeed (ADS-B) will drop but the airspeed remains the same.
Forum: Rumours & News
7th Apr 2019, 14:09
Replies: 191
Views: 146,074
Posted By astonmartin

That depends on elevator authority. And I...

That depends on elevator authority. And I understand the phenomenon of ‘elevator blowback’ could have played a role....
Forum: Rumours & News
6th Apr 2019, 18:55
Replies: 191
Views: 146,074
Posted By astonmartin

I’ve done it during testflights and it is doable....

I’ve done it during testflights and it is doable. Calling it ‘Yoyo’ would be an exaggeration.
Forum: Rumours & News
6th Apr 2019, 09:19
Replies: 5,109
Views: 13,106,776
Posted By astonmartin

But they stayed in ‘level change’ mode all the...

But they stayed in ‘level change’ mode all the time. That means that the autothrottle kept the engines at climb thrust all the time.

Both altitude and speed were uncontrolled.
Forum: Rumours & News
5th Apr 2019, 21:35
Replies: 5,109
Views: 13,106,776
Posted By astonmartin

I think engineers have more freedom when...

I think engineers have more freedom when designing fighters, then when designing airliners.
It’s all about liability.
Forum: Rumours & News
5th Apr 2019, 20:11
Replies: 5,109
Views: 13,106,776
Posted By astonmartin

During testflights with the B737 PG and NG I have...

During testflights with the B737 PG and NG I have used the stabilizer trim wheel many times. Also with high speeds, it is possible to crank the wheel. But with more elevator input (ANU), it becomes...
Forum: Rumours & News
2nd Mar 2019, 10:07
Replies: 57
Views: 42,494
Posted By astonmartin

Capital Group 28 million shares for €13,355...

Capital Group

28 million shares for €13,355 per share. 84 cents more then the market value at the time. An offer the Americans could not refuse: They bought them for around €9, a year earlier.
Forum: Rumours & News
28th Feb 2019, 19:00
Replies: 57
Views: 42,494
Posted By astonmartin

The Netherlands are slowly taking over the role...

The Netherlands are slowly taking over the role the UK used to have in the EU: Being the leader of countries that resist the German-French axis of power and try to prevent too much money flowing from...
Forum: Tech Log
17th Jan 2017, 15:20
Replies: 15
Views: 7,393
Posted By astonmartin

Thanks a lot flyburg! Makes sense indeed. As we...

Thanks a lot flyburg! Makes sense indeed. As we agreed in the mail, ATC should not use ILS category to describe separation. This is confusing.

Best regards.
Forum: Tech Log
16th Jan 2017, 10:02
Replies: 21
Views: 6,493
Posted By astonmartin

Indeed, disconnect the autopilot earlier, say...

Indeed, disconnect the autopilot earlier, say 5000'. All new pilots tend to use too much sidestick input. Don't touch it! (It helps when you imagine that the sidestick is your collegue's .... ;) )
Forum: Tech Log
15th Jan 2017, 22:29
Replies: 15
Views: 7,393
Posted By astonmartin

Thanks a lot for your comments everyone. In...

Thanks a lot for your comments everyone.

In general, I think ATC should be clear to pilots up to which category the ILS can be garantueed and on the other hand pilots should actively ask for this....
Forum: Tech Log
14th Jan 2017, 14:28
Replies: 15
Views: 7,393
Posted By astonmartin

ILS category, separation and protection area

Any thoughts, opinions and experiences on the following matter is appreciated:

Recently I made an ILS approach to a runway at my homebase (AMS Schiphol) with visibility deteriorating.

The ATIS...
Forum: Questions
31st May 2016, 22:20
Replies: 22
Views: 9,161
Posted By astonmartin

High altitude

What about manual flight at FL370?

I have almost zero experience. And it is A LOT different then manual flight at 5000'.
Forum: Questions
31st May 2016, 11:01
Replies: 22
Views: 9,161
Posted By astonmartin

I can imagine you are insulted. I realise I...

I can imagine you are insulted. I realise I brought up a sensitive subject. Being easily insulted because of 'honour' might be a part of the subject though.

That's why I still think we should talk...
Forum: Questions
31st May 2016, 09:14
Replies: 22
Views: 9,161
Posted By astonmartin

Manual Flying Skills in the Middle- and Far-East

Dear colleagues,

What is true of the stories that there is a requirement from the insurance companies to make autolands for airlines in the mentioned area's?

Same goes for requirements to have...
Forum: Rumours & News
4th Jun 2011, 12:10
Replies: 63
Views: 19,336
Posted By astonmartin

Retraction

It appears that they postponed gear retraction. So maybe they knew right away that there was something wrong. Could be through tire pressure, maybe through tower/ATC.

You have to land anyway, so...
Forum: Tech Log
30th May 2011, 11:51
Replies: 3,435
Views: 1,668,413
Posted By astonmartin

Turkish Crash at Amsterdam was ex military, this...

Turkish Crash at Amsterdam was ex military, this other incident where a 737 crashed during the night in a turn where the cpat was pilot flying was ex mil.

Ex mil is not safer, or less safe.
Forum: Tech Log
30th May 2011, 10:53
Replies: 3,435
Views: 1,668,413
Posted By astonmartin

@nitpicker330: I thought you meant to say that it...

@nitpicker330: I thought you meant to say that it is only suitable to look up AOA values when in a routine situation. What I meant was that this doesn't help you in situations with extreme AOA.
Forum: Tech Log
30th May 2011, 08:41
Replies: 3,435
Views: 1,668,413
Posted By astonmartin

@nitpicker Of course you could look into that...

@nitpicker Of course you could look into that screen during low workload. But what do you expect to see there, besides a normal AOA value? By the way, I agree with you that any pilot should know...
Forum: Tech Log
30th May 2011, 08:39
Replies: 3,435
Views: 1,668,413
Posted By astonmartin

@ Lemain. Stall warning on the A330 is based on...

@ Lemain. Stall warning on the A330 is based on angle of attack.
Forum: Tech Log
30th May 2011, 08:38
Replies: 3,435
Views: 1,668,413
Posted By astonmartin

@BOAC alternate law: I thought there was a...

@BOAC

alternate law: I thought there was a line referring to an auto-correction to prevent overspeed. I can't find it anymore. IF the PF behaved that way, it looks like a plausible scenario.
...
Forum: Tech Log
30th May 2011, 08:26
Replies: 3,435
Views: 1,668,413
Posted By astonmartin

AOA

Guess what: The A330 has been retrofitted with a' backup speed scale' (BUSS) in case all three ADC's fail. The BUSS provides a coarse speed reference, based on AOA.
Forum: Tech Log
30th May 2011, 07:58
Replies: 3,435
Views: 1,668,413
Posted By astonmartin

@nitpicker That would be the same as driving on...

@nitpicker That would be the same as driving on the highway while looking down while shifting gear.
Forum: Tech Log
30th May 2011, 07:56
Replies: 3,435
Views: 1,668,413
Posted By astonmartin

@ Pininstauld: This scenario doesn't work in...

@ Pininstauld: This scenario doesn't work in alternate law...
Forum: Tech Log
30th May 2011, 07:53
Replies: 3,435
Views: 1,668,413
Posted By astonmartin

AOA

There is no AOA display in the A330.
Forum: Tech Log
30th May 2011, 05:58
Replies: 2,070
Views: 613,476
Posted By astonmartin

IAS at 40 degrees AOA.

I don't think any pitot tube will produce a reliable output at extreme AOA's.
Forum: Tech Log
29th May 2011, 14:15
Replies: 2,070
Views: 613,476
Posted By astonmartin

Flight Control Laws

With regard tot the control laws:

Both in normal and alternate law1 and 2, both elevator and THS are programmed to produce a certain G value. This would be 1G when the side-stick is in neutral. So...
Forum: Rumours & News
5th Mar 2009, 09:49
Replies: 2,906
Views: 1,448,112
Posted By astonmartin

Skill

There is quite a difference between a fighter aircraft and an airliner. If you're a good fighter pilot, doesn't mean you are a good line pilot. This should be understood by airline management, when...
Forum: Rumours & News
4th Mar 2009, 14:43
Replies: 2,906
Views: 1,448,112
Posted By astonmartin

Unnecessary

A minor technical problem caused the airplane to fly away with the three pilots. A completely unnecessary accident. The exact opposite of the Hudson accident....
Forum: Rumours & News
27th Feb 2009, 12:40
Replies: 2,906
Views: 1,448,112
Posted By astonmartin

@nick 14: such a manoevre would almost...

@nick 14: such a manoevre would almost immediately result in high sinkrate, regardless of high pitch/AoA.

@28L I fly out of AMS. I don't like late change-overs from automatic to manual....
Forum: Rumours & News
27th Feb 2009, 11:06
Replies: 2,906
Views: 1,448,112
Posted By astonmartin

Autopilot

Everybody seems convinced that the autopilot was engaged. Was it?
Personally, when I intend to do a manual landing, I fly a manual approach.
Forum: Rumours & News
27th Feb 2009, 09:41
Replies: 2,906
Views: 1,448,112
Posted By astonmartin

Visual illusion

Dear readers / collegues,

First of all I would like to apologize for not reading every posting here. I did read about 50% though.

I have 16 years of 737 experience, of which most as test-pilot...
Forum: Rumours & News
20th Jan 2008, 13:15
Replies: 307
Views: 182,336
Posted By astonmartin

Pitch control

As an A330 pilot I am most interested in the aspect of 'pitch control' during the seconds after the double engine loss.

I do not want to start another A vs B discussion but want to ask a question...
Showing results 1 to 35 of 36
 
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