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21st Apr 2019, 14:06
Replies: 5,129
Views: 10,223,438
Posted By syseng68k

Haven’t posted here for a while and semi retired...

Haven’t posted here for a while and semi retired now, but also electronics / software engineer, three decades plus including avionics systems exposure. Have read this thread and amazed that such a...
8th Aug 2018, 17:37
Replies: 4
Views: 658
Posted By syseng68k

If I click on archive, it just takes me to a pda...

If I click on archive, it just takes me to a pda version of the main index, so looks like a broken link. Ideally, this should be within the search function, as I can search using a variety of...
8th Aug 2018, 12:28
Replies: 4
Views: 658
Posted By syseng68k

Download Old Posts ?

Hi,

Apologies if this has been answered before, but is there a way to download all previous posts as a file, either plain text, pdf or zip compressed ?. I can do a search and find them all, but...
1st Jun 2017, 13:41
Replies: 634
Views: 262,145
Posted By syseng68k

The Register article and comments deleted ?...

Just checked a few minutes ago and The Register article and comments appear to have been deleted, leaving no trace. Wonder if they have had some heavy lawyers letters to shut them up ?...
31st May 2017, 23:59
Replies: 634
Views: 262,145
Posted By syseng68k

I've been wading through it as well. All the...

I've been wading through it as well. All the breathless gushing may be necessary for investors, but are they actually saying anything, other than endless efforts to reduce the cost base ?. From what...
30th May 2017, 14:50
Replies: 634
Views: 262,145
Posted By syseng68k

Seen at The Register, quote of the day imho: ...

Seen at The Register, quote of the day imho:

"A modern airline is an IT business, one that just happens to fly aircraft. "

As with most other businesses these days, though it doesn't seem to...
23rd May 2016, 13:20
Replies: 1,184
Views: 2,489,953
Posted By syseng68k

FAA and the industry ?. A cynic might see that as...

FAA and the industry ?. A cynic might see that as a a similar situation to vehicle engine testing, where the industry has been gaming the system for years in collusion with the regulators. Not a...
23rd May 2016, 13:07
Replies: 1,184
Views: 2,489,953
Posted By syseng68k

Modern electronic components use materials that...

Modern electronic components use materials that don't support fire, nor do the printed circuit boards. If a component fails and burns out, then there may be localised charing of the printed circuit...
22nd May 2016, 18:01
Replies: 1,184
Views: 2,489,953
Posted By syseng68k

So there is a minimal control, but sounds fairly...

So there is a minimal control, but sounds fairly primitive in terms of safely landing the a/c, especially if flight displays are compromised. Also, would the engines keep running, fuel pumps etc ?....
22nd May 2016, 17:25
Replies: 1,184
Views: 2,489,953
Posted By syseng68k

anengineer: #586 As you say, pure fbw, with...

anengineer: #586

As you say, pure fbw, with no mechanical backup.and the a/c cannot fly at all without the electronics. .It's surprising therefore that there is no fire suppressant around the...
6th Feb 2016, 17:44
Replies: 47
Views: 33,478
Posted By syseng68k

Thanks :-)... I guess those who are paid to...

Thanks :-)...

I guess those who are paid to verify that the system works as intended
never have to listen at the end of a radio link. Radio receivers have to deal
with a very wide range of...
1st Feb 2016, 14:35
Replies: 47
Views: 33,478
Posted By syseng68k

Bit late getting to this one, but used to listen...

Bit late getting to this one, but used to listen to Volmet on 5450KHz
regularly years ago to get local pressure readings (Benson) for a rough
check of instrument calibration. A rather formal male...
23rd Aug 2015, 13:40
Replies: 1,087
Views: 944,447
Posted By syseng68k

It always seems strange to me that airshows and...

It always seems strange to me that airshows and other potentially dangerous / risky events go go on for decades without anyone batting an eyelid, yet as soon as there's a significant accident, loads...
12th May 2015, 16:36
Replies: 7
Views: 3,601
Posted By syseng68k

Bit late getting back this. Looks like the...

Bit late getting back this. Looks like the project temporarily on hold, no funds, but many thanks for all the replies.

I think the Comet starting system was the model for this conversion. They...
12th Apr 2015, 22:22
Replies: 7
Views: 3,601
Posted By syseng68k

Lightning T5 Starting System

The Lightning is a T5 variant, based at Cranfield, maintained by a team of volunteers and fast taxi run on various dates during the summer months. More info can be found at: lightningt5.com.
...
12th Apr 2014, 11:10
Replies: 11,824
Views: 21,254,620
Posted By syseng68k

thommo101, #9906: There various schemes...

thommo101, #9906:

There various schemes that could be used to mitigate that. For example, the beacon receiver could be switched on for just a short period, much as the transmitter is, to...
7th Apr 2014, 16:47
Replies: 11,824
Views: 21,254,620
Posted By syseng68k

BillS, #9512: In wonder if they have the...

BillS, #9512:

In wonder if they have the capability to use sar techniques to get a better idea of position. I know the pinger is one way, but it should be possible to correlate reception over...
25th Mar 2014, 15:54
Replies: 11,824
Views: 21,254,620
Posted By syseng68k

Strongeagle: In the early days, hard drives...

Strongeagle:

In the early days, hard drives used stepper motors to position the heads and this was followed by voice coil actuators as density increased. In both cases, one could expect that data...
25th Mar 2014, 14:04
Replies: 11,824
Views: 21,254,620
Posted By syseng68k

Lapp, #8026: Wrong attribution - it...

Lapp, #8026:

Wrong attribution - it might help if you could actually verify who said what before posting :-).

My original post was in reply to James890 as follows, #7968:

...
24th Mar 2014, 23:55
Replies: 11,824
Views: 21,254,620
Posted By syseng68k

James890: Data remanence on CVR? If...

James890:

Data remanence on CVR?

If they were still using magnetic tape, then there may be a chance to recover earlier recordings, much as overwritten hard drive data can sometimes be recovered...
24th Mar 2014, 22:03
Replies: 11,824
Views: 21,254,620
Posted By syseng68k

Unixman: Let's try an example: Assume that...

Unixman:

Let's try an example: Assume that the satellite is directly above the equator, also that the a/c is north of the equator and flying south.

As the a/c approaches the equator, doppler...
Forum: Tech Log
18th Sep 2013, 13:19
Replies: 200
Views: 23,762
Posted By syseng68k

You could argue that allowing the ins to be reset...

You could argue that allowing the ins to be reset when the a/c was not on the
ground was a system design failure. Even if you could reset with wings level
in flight, all you have then is an...
15th Aug 2013, 15:29
Replies: 119
Views: 78,454
Posted By syseng68k

Ian W Tell a lie often enough and it becomes...

Ian W
Tell a lie often enough and it becomes the truth eh ?.. In fact it's not yet been
determined to any degree of certainty that the ELT was responsible for the
fire. The investigation is...
Forum: Tech Log
15th Aug 2013, 15:10
Replies: 13
Views: 4,199
Posted By syseng68k

I'm not being critical of the present owners,...

I'm not being critical of the present owners, just wondering why we
didn't have the vision and balls to keep it uk owned. The buyers
(Was it Honeywell ?) obviously saw value and synergy in the...
15th Aug 2013, 13:57
Replies: 19
Views: 7,342
Posted By syseng68k

That's ok then, we can all go back to sleep. Are...

That's ok then, we can all go back to sleep. Are these people
serious, a major safety related fault and noone needs to
worry ?. The complacency and related excuses are astounding.

The first...
Showing results 1 to 25 of 297
 


 
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