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Search: Posts Made By: deSitter
Showing results 1 to 35 of 37
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Forum: Tech Log
25th May 2011, 14:23
Replies: 2,546
Views: 932,247
Posted By deSitter

DozyWannabe said "Trust me, if you'd actually...

DozyWannabe said "Trust me, if you'd actually studied Software Engineering at even an undergraduate level, you'd quickly realise it's a discipline that shares the same reliance on repetition,...
Forum: Tech Log
25th May 2011, 12:24
Replies: 2,546
Views: 932,247
Posted By deSitter

DozyWan, anyone who appreciates the ugly reality...

DozyWan, anyone who appreciates the ugly reality of pseudo-engineering cannot help but be galled.
Forum: Tech Log
25th May 2011, 11:40
Replies: 2,546
Views: 932,247
Posted By deSitter

Razoray said "So the point of conversation should...

Razoray said "So the point of conversation should not be whether you would rather have HAL flying you around, or a Sky God from the past flying by the seat of his pants!"

That's right, and it's...
Forum: Tech Log
25th May 2011, 06:24
Replies: 2,546
Views: 932,247
Posted By deSitter

Egads, I stand convicted. Let's get rid of pilots...

Egads, I stand convicted. Let's get rid of pilots altogether, those accidents-waiting-to-happen! Vive le telechargement!
Forum: Tech Log
25th May 2011, 05:43
Replies: 2,546
Views: 932,247
Posted By deSitter

What? You need help in a night carrier landing?...

What? You need help in a night carrier landing? What sort of pilot are you? :) Just call the ball or shut up and..
Forum: Tech Log
25th May 2011, 04:49
Replies: 2,546
Views: 932,247
Posted By deSitter

Is that what you think my point is? I don't care...

Is that what you think my point is? I don't care what your choice of weapon is, the issue here is computerization for its own sake, of automation in the name of replacing the human spirit - the one...
Forum: Tech Log
25th May 2011, 04:33
Replies: 2,546
Views: 932,247
Posted By deSitter

This has nothing whatsoever to do with...

This has nothing whatsoever to do with maintaining a stable flight configuration while cruising at Mach 0.8.
Forum: Tech Log
25th May 2011, 04:18
Replies: 2,546
Views: 932,247
Posted By deSitter

How often have I heard, over the course of my...

How often have I heard, over the course of my so-called "career" as a "professional", this tired refrain?

There are bodies on the sea floor as we speak, that were put there by over-reliance on...
Forum: Tech Log
24th May 2011, 14:18
Replies: 2,546
Views: 932,247
Posted By deSitter

Dozy and syseng68k, I am not trying to be...

Dozy and syseng68k, I am not trying to be alarmist - but I do find it very telling of the entire world of developing software, that tools like APL, FORTH, and Smalltalk, which are purpose-built for...
Forum: Tech Log
24th May 2011, 04:16
Replies: 2,546
Views: 932,247
Posted By deSitter

ion_berkeley, you can't be serious - people are...

ion_berkeley, you can't be serious - people are still using that hermaphroditic monster? I'm stunned. Or is this just the page of some Ada booster (Lord do I remember those drones!)?
Forum: Tech Log
24th May 2011, 01:40
Replies: 2,546
Views: 932,247
Posted By deSitter

DozyWan said "Let's be honest here. What...

DozyWan said

"Let's be honest here. What you're saying is probably fair in many cases. But to compare the IT projects you're talking about with what goes into real-time aviation systems is like...
Forum: Tech Log
24th May 2011, 00:44
Replies: 2,546
Views: 932,247
Posted By deSitter

Software vs Man

syseng68k (http://www.pprune.org/members/302789-syseng68k) gave us a nice lecture on some IT stuff. Having spent of lot of time trying to make money in the IT world (there being no honorable way to...
Forum: Tech Log
22nd May 2011, 17:40
Replies: 2,546
Views: 932,247
Posted By deSitter

Very funny :) No, I mean something like hydrogen...

Very funny :) No, I mean something like hydrogen peroxide thrusters on the outer reaches of the wing. Just enough to get the airplane out of the stalled configuration, hopefully with the nose down.
Forum: Tech Log
22nd May 2011, 17:12
Replies: 2,546
Views: 932,247
Posted By deSitter

How hard would it be to have a crude reaction...

How hard would it be to have a crude reaction control system for spin emergencies? Just enough to cancel the spinning tendency and get the nose down.
Forum: Tech Log
22nd May 2011, 05:12
Replies: 2,546
Views: 932,247
Posted By deSitter

Where is the TCAS antenna?

Where is the TCAS antenna?
Forum: Tech Log
22nd May 2011, 03:40
Replies: 2,546
Views: 932,247
Posted By deSitter

Smilin_Ed said This is very fascinating and...

Smilin_Ed said
This is very fascinating and reminds me of riding a fast motorcycle. This is a subtle physico-mental thing that cannot be described, but is very instinctual for a experienced rider....
Forum: Tech Log
20th May 2011, 17:05
Replies: 2,546
Views: 932,247
Posted By deSitter

I would think that the important design point...

I would think that the important design point would not be with the computer system as such, rather, relatively high wing-loading in the airplane itself, so that there is built-in stability,...
Forum: Tech Log
19th May 2011, 19:02
Replies: 2,546
Views: 932,247
Posted By deSitter

CogSim - that's exactly right, and it's the point...

CogSim - that's exactly right, and it's the point I'm trying to make. It's not enough to just be able to turn off the FMC - there has to be a designed-in envelope of stability that is familiar to...
Forum: Tech Log
19th May 2011, 18:58
Replies: 2,546
Views: 932,247
Posted By deSitter

No Mechaca, I am not referring to non-trained...

No Mechaca, I am not referring to non-trained professionals - I've seen 20 year IT people with A+ skills go completely blank and stare hopelessly at the same text for minutes on end, when confronted...
Forum: Tech Log
19th May 2011, 17:59
Replies: 2,546
Views: 932,247
Posted By deSitter

Irrelevance

All this discussion of what the Airbus FMCs do is interesting, but irrelevant - when humans are confronted by a computer that is either not working, or working in a regime they are not intimately...
Forum: Tech Log
19th May 2011, 10:43
Replies: 2,546
Views: 932,247
Posted By deSitter

Interacting with computers

First, let me apologize for my frustrated outburst of the other day - I was perhaps one beer beyond inhibition and the idea of those poor people on the ocean floor got the best of me.

Second - no...
Forum: Tech Log
17th May 2011, 03:05
Replies: 2,546
Views: 932,247
Posted By deSitter

without computer

Beside, do you know a single large transport aircraft which is built without a flight computer today? More likely, the biggest issue is that you don't have a clue about what you are talking about....
Forum: Tech Log
17th May 2011, 01:35
Replies: 2,546
Views: 932,247
Posted By deSitter

hedge36, it's becoming clear what happened here -...

hedge36, it's becoming clear what happened here - problems developed for which there were no stick-and-rudder guys aboard, and indeed there is no stick-and-ruddering to be done with this flying...
Forum: Tech Log
17th May 2011, 00:37
Replies: 2,546
Views: 932,247
Posted By deSitter

This entire worldview of the computer flying an...

This entire worldview of the computer flying an airplane is a catastrophe. I will never fly on any Airbus product for the remainder of my life. I want my life in the hands of pilots, not mediocre IT...
Forum: Tech Log
6th May 2011, 13:15
Replies: 2,546
Views: 932,247
Posted By deSitter

What to do when trapped at AoA

This discussion of envelope is very interesting! I have two questions..

1) Machinbird, the F-16 has more thrust that weight, so if you get stuck in this band where you can't pitch your airplane,...
Forum: Tech Log
4th May 2011, 13:27
Replies: 2,546
Views: 932,247
Posted By deSitter

How many hull-loss accidents have NOT been solved...

How many hull-loss accidents have NOT been solved as a result of unusable/unrecoverable flight recorders? It can't be more than 5. So hand-wringing about sensors is pretty much pointless if the...
Forum: Tech Log
2nd May 2011, 15:01
Replies: 2,546
Views: 932,247
Posted By deSitter

What RR_NDB is referring to is N274US, a...

What RR_NDB is referring to is N274US, a Northwest 727-25 on a ferry to Buffalo, that crashed after stalling following near simultaneous freezing of all three independent pitot systems. The pitot...
Forum: Tech Log
30th Apr 2011, 03:20
Replies: 2,546
Views: 932,247
Posted By deSitter

hydraulic forces

So are you guys saying, the over-pressure wave from compressing the inflated balloon of the aircraft is what shatters it into manifold pieces? But that does not explain how pylons become separated...
Forum: Tech Log
29th Apr 2011, 16:46
Replies: 2,546
Views: 932,247
Posted By deSitter

No question it's the APU, obvious really. The...

No question it's the APU, obvious really. The airplane is torn all to hell. I don't see how this is possible without a high speed impact.
Forum: Tech Log
29th Apr 2011, 12:12
Replies: 2,546
Views: 932,247
Posted By deSitter

JD-EE - huh?? The cameras were 70mm Hasselblads...

JD-EE - huh?? The cameras were 70mm Hasselblads with special Kodak Ektachrome film of typical ASA, 80 and 160. All that was missing from an earthly scene was the Japanese tourist wielding it. The...
Forum: Tech Log
29th Apr 2011, 04:13
Replies: 2,546
Views: 932,247
Posted By deSitter

I stand corrected :) I have to stand because by...

I stand corrected :) I have to stand because by empennage hurts after what they did to me.
Forum: Tech Log
29th Apr 2011, 03:52
Replies: 2,546
Views: 932,247
Posted By deSitter

Look Centrosphere, you should be around long...

Look Centrosphere, you should be around long enough before you start correcting people and implying that they don't know what they are saying. I started doing black and white darkroom photography...
Forum: Tech Log
29th Apr 2011, 00:51
Replies: 2,546
Views: 932,247
Posted By deSitter

Just to put this to bed, here is what happens...

Just to put this to bed, here is what happens when you get moon dust on a lens at f/16.

http://www.hq.nasa.gov/alsj/a12/AS12-46-6818HR.jpg
http://www.hq.nasa.gov/alsj/a12/AS12-46-6826HR.jpg...
Forum: Tech Log
28th Apr 2011, 15:57
Replies: 2,546
Views: 932,247
Posted By deSitter

Of course the FDR could survive a fall in the sea...

Of course the FDR could survive a fall in the sea - the terminal speed would be less than in air, much less, and certainly the FDR is designed to fall out of the sky.
Forum: Tech Log
28th Apr 2011, 13:49
Replies: 2,546
Views: 932,247
Posted By deSitter

Altered image? no..

Centrosphere,

"If you amplify that region with Paint, youŽll see that the texture of the pixels.."

It appears to me to be a smudge on the optical window covering the camera. A small camera with...
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