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Concorde question

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Concorde question

Old 9th Feb 2018, 21:47
  #2041 (permalink)  
 
Join Date: Jan 2008
Location: It used to be an island...
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Hopefully this falls within the limits on commercial activity on PPRuNe, I have no connection with this other than being a satisfied customer a few years ago. If not, mods please be gentle with me...

The Concorde flight deck DVD produced by ITVV featuring Senior Flight Engineer Roger Bricknell, who also gave a fascinating talk on Concorde at the RAeS a few years ago, is soon going out of "print". So if you want a copy, you'll need to get an order in soon, or get a copy at an air show. I doubt anyone else will reproduce it soon.

It's an excellent and in-depth video, well worth it if you didn't manage to fly in her and interesting even if you did.
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Old 3rd Mar 2018, 12:15
  #2042 (permalink)  
 
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I've flown on G-BOAF.
GLIDER 90 is offline  
Old 17th May 2018, 21:23
  #2043 (permalink)  
 
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Originally Posted by MurphyWasRight View Post
( guessing you meant "Cross talk was not even considered"

The inter board (backplane I surmise) random wiring may be what allowed it to work.

"Way back when" I used wire wrap proto boards (socket for each IC) and found out the hard way that neatly bundled routing, Manhattan no direct cross country, greatly increased crosstalk compared to random 'rats nest' routing.

I once made everything start working by dropping a single ferrite bead over the clock driver pin (before adding the wires) to slow edge rate enough to damp reflections.
This was with a 66Mhz clock which is the upper limit for wire wrap.
The reason that "birds nest wiring" was used for the backplane wiring on the AICU was indeed to prevent crosstalk.
I carried out a prom change at Cassablanca just days before the C of A flight, and used a prom blower that I carried out from Filton in my hand baggage together with boxes of proms, i remember the strange reaction by the customs man , until someone rescued me by telling him that I was taking them straight through to air side for Concorde. I programmed the proms by selecting the switches for the 8 bits of the line in the program for that particular prom, and then pressing the "blow" button that destroyed the fusible links in the input circuits of the prom. Of course all 64 lines of program in the prom that was changing had to be blown, even if only one line of program was changing. I carried out the programming on all 8 AICUs in 201, and the prom boards were laid out on a desk in the Air France office. Andre Turcat popped in to see what I was doing.

Last edited by consub; 17th May 2018 at 21:27. Reason: ommission
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Old 5th Oct 2018, 00:17
  #2044 (permalink)  
 
Join Date: Jul 2013
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Decent article at Smithsonian.com with a brief history of Concorde and the crash that doomed it.
https://www.smithsonianmag.com/smith...M4MDQ0MDUyNwS2
tdracer is online now  
Old 3rd Jan 2019, 08:04
  #2045 (permalink)  
 
Join Date: Jan 2012
Location: Brisbane
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How many commercial flights did the fleet of Concordes actually make before they were sadly decommisssioned?
garylovesbeer is offline  
Old 3rd Jan 2019, 08:48
  #2046 (permalink)  
 
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Originally Posted by garylovesbeer View Post
How many commercial flights did the fleet of Concordes actually make before they were sadly decommisssioned?
BA's Concordes performed almost 50,000 flights.

AF had a similar sized fleet, though I think their utilisation was a bit less.

About Concorde
DaveReidUK is offline  
Old 21st Jan 2019, 14:55
  #2047 (permalink)  
 
Join Date: Apr 2008
Location: London
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Originally Posted by nicolai View Post
Hopefully this falls within the limits on commercial activity on PPRuNe, I have no connection with this other than being a satisfied customer a few years ago. If not, mods please be gentle with me...

The Concorde flight deck DVD produced by ITVV featuring Senior Flight Engineer Roger Bricknell, who also gave a fascinating talk on Concorde at the RAeS a few years ago, is soon going out of "print". So if you want a copy, you'll need to get an order in soon, or get a copy at an air show. I doubt anyone else will reproduce it soon.

It's an excellent and in-depth video, well worth it if you didn't manage to fly in her and interesting even if you did.
For a time the whole video was available on YouTube - certainly long enough for one to rip a copy (and before Plod catches up with me, I used to own the twin-pack VHS version so felt somewhat entitled...)
Lord Bracken is offline  

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