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Search: Posts Made By: gonebutnotforgotten
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Forum: Tech Log
4th Jun 2019, 16:00
Replies: 10
Views: 2,345

According to my Annex 14 (section 5) for...

According to my Annex 14 (section 5) for runways>2400m, the normal Aiming Point marking starts at 400m from Threshold, while for runways between 1200m and 2400m it would start at 300m from THR. The...
2nd Dec 2018, 17:05
Replies: 2,100
Views: 1,177,300

I fear you have missed my point which was that...

I fear you have missed my point which was that the Trident didn't have an independent trimming tailplane with separate elevator, there was only one movable surface with a geared tab built in. In fact...
2nd Dec 2018, 11:34
Replies: 2,100
Views: 1,177,300

The Trident in fact had an all flying tail, the...

The Trident in fact had an all flying tail, the column commanded the whole tailplane and what appears to be an elevator was in fact a geared tab, albeit quite a large one. So the pitch trim did not...
1st Dec 2018, 21:36
Replies: 2,100
Views: 1,177,300

No, they probably didn't, but the point is that...

No, they probably didn't, but the point is that they didn't need to. Continued forward pressure on the side stick would have been enough. Completely different to the many 737 LOC-Is (and some non FBW...
1st Dec 2018, 19:37
Replies: 2,100
Views: 1,177,300

Please could we stop comparisons with AF447....

Please could we stop comparisons with AF447. Airbus control system (modified 'C*') is completely different to any Boeing, especially the conventional 737, and the Elevator and Stab effectively act as...
21st Nov 2018, 12:41
Replies: 2,100
Views: 1,177,300

I agree with wiedehopf, AGBagb, and others above...

I agree with wiedehopf, AGBagb, and others above that it really shouldn't matter WHY the system is behaving or even exactly HOW, the crew's job is to react to what is happening and regain control....
17th Nov 2018, 00:19
Replies: 2,100
Views: 1,177,300

Am I right in understanding that the previous...

Am I right in understanding that the previous 737s 'stability augmentation systems', otherwise known as the STS, only ever used a speed signal, and that the innovation with the Max was the use of AOA...
Forum: Questions
9th Nov 2017, 16:13
Replies: 9
Views: 2,102

Steve, Try the cosine rule....relates two...

Steve,

Try the cosine rule....relates two sides to the third knowing the included angle between the known sides, sorry, can't paste it in here.
18th Oct 2017, 16:25
Replies: 179
Views: 63,446

I42, exactly, and it seems strange to me that...

I42, exactly, and it seems strange to me that there is no discussion of the navigation errors in the AAIB report. There are plenty of words about not maintaining VMC etc, but not why he found himself...
Forum: Tech Log
15th Aug 2017, 17:07
Replies: 1,648
Views: 405,159

How True

..... or as one wise ex-boss, and very good engineer, once told me, 'this [thing] is fool proof, but it's not bloody fool proof'.
23rd Jun 2017, 21:20
Replies: 62
Views: 94,843

One reason (THE reason?) for making the first...

One reason (THE reason?) for making the first action of a shutdown procedure 'Thrust Lever - Identify - Close' is that it is the one that is quickly reversible. It's a very good time to consider...
6th May 2017, 22:35
Replies: 486
Views: 530,857

Thanks, that makes a lot more sense.

Thanks, that makes a lot more sense.
4th May 2017, 17:16
Replies: 486
Views: 530,857

TU 154 Heavy?? How odd that the crew should...

TU 154 Heavy??

How odd that the crew should add 'Heavy' in their ATC comms. The lower band of the ICAO Heavy category is 136t so what did they mean as the 154's MTOW is around 100t isn't it?
27th Apr 2017, 16:05
Replies: 486
Views: 530,857

Is Overload the problem?

Assuming an overload of 12t, Kulverstukas's table (post 246) would suggest Vref(0) should be 24 km/hr higher, call it even 30 km/hr or 15 kt. But presumably (?) Vref = about 1.3 Vstall, so the stall...
Forum: Tech Log
11th Apr 2017, 18:08
Replies: 3
Views: 1,523

Seagull, Not far off the mark at all, in...

Seagull,

Not far off the mark at all, in fact Honeywell already patented such a warning, see https://www.flightglobal.com/news/articles/honeywell-patents-wake-turbulence-visualisation-tool-314706/...
9th Jan 2017, 08:26
Replies: 486
Views: 530,857

Machinbird I've been studying all the pics...

Machinbird

I've been studying all the pics of the 154 I can find and it's not obvious to me that the length of leading edge to left of the hole isn't just the fixed section behind the slat. It...
8th Jan 2017, 21:53
Replies: 486
Views: 530,857

Mr K you are going to have to help us with that...

Mr K you are going to have to help us with that picture of the right wing - is there any portion of the movable leading edge (slat) visible? If so where is it and is it up or down?! Seems to me it's...
6th Jan 2017, 10:04
Replies: 486
Views: 530,857

Question to Kulverstukas

Does the Tu154 have a speed baulk or any other device to prevent retraction of the slats at too low speed?
30th Dec 2016, 15:53
Replies: 486
Views: 530,857

But by all accounts the first signs of alarm from...

But by all accounts the first signs of alarm from the crew came after the gear up call (if that's what it was), so unlikely they actually started in an unsafe config.
28th Dec 2016, 09:09
Replies: 486
Views: 530,857

Premature slat retraction

IF this is what happened it is indeed very similar to the PI accident. All the more sad therefore that those old lessons weren't learned. Within a few weeks of that crash we all we went back to the...
Forum: Tech Log
14th Oct 2016, 09:23
Replies: 1,648
Views: 405,159

Gums, Thanks for those thoughts - I've not...

Gums,

Thanks for those thoughts - I've not seen a thorough analysis of the dynamics of 447 post stall, maybe there is a link somewhere in this thread and I missed it, but it's surely not just a...
Forum: Tech Log
13th Oct 2016, 22:32
Replies: 1,648
Views: 405,159

All this discussion of the merits of an AOA...

All this discussion of the merits of an AOA presentation in the AF447 accident is interesting and doubtless instructive, but the fact is surely that once the aircraft got to 40+ deg AOA, there was...
4th Sep 2016, 06:06
Replies: 100
Views: 108,723

It does matter where you sit

For those sceptics who doubt the 'derotation' theory, please refer to http://www.ukfsc.co.uk/files/FOCUS%20-%20Past%20Issues/Focus%2064.pdf for a fuller explanation of the centre of percussion and...
Forum: Tech Log
1st Apr 2016, 22:53
Replies: 76
Views: 18,331

FGD The incident I quoted was (probably) a...

FGD

The incident I quoted was (probably) a little different to the FlyDubai in that what I saw was a simulated Cat 3a GA from the flare following an Autopilot failure. In that case the speed was...
Forum: Tech Log
1st Apr 2016, 09:36
Replies: 76
Views: 18,331

I own up to being the author of the original...

I own up to being the author of the original article quoted by FGD135 at the start of the thread. I apologise to him if I didn't make myself totally clear about what happens when the pitch trim is...
Showing results 1 to 25 of 80
 


 
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