Go Back  PPRuNe Forums > Aircrew Forums > Military Aviation
Reload this Page >

Voyager Plummets (Merged)

Wikiposts
Search
Military Aviation A forum for the professionals who fly military hardware. Also for the backroom boys and girls who support the flying and maintain the equipment, and without whom nothing would ever leave the ground. All armies, navies and air forces of the world equally welcome here.

Voyager Plummets (Merged)

Thread Tools
 
Search this Thread
 
Old 26th Feb 2014, 07:13
  #241 (permalink)  
 
Join Date: Nov 2000
Location: UK
Age: 69
Posts: 1,405
Received 40 Likes on 22 Posts
You brought it up; probably because you don't understand what happened.

Still if it helps feed your conspiracy theory that's fine.
beardy is offline  
Old 26th Feb 2014, 09:19
  #242 (permalink)  
 
Join Date: Apr 1999
Location: Manchester, UK
Posts: 1,958
Likes: 0
Received 0 Likes on 0 Posts
Roland, if you feel the AF 296 investigation was a conspiracy then read beagles last post as he sums it up perfectly. The only difference is the crew didn't buy the farm but in fact spent years acrimoniously blaming the aircraft for the accident. All but the most determined Elvis-spotters accept it was not caused by any fault with the aircraft. Why are we even discussing AF 296 in connection with this event?
ShotOne is offline  
Old 26th Feb 2014, 11:01
  #243 (permalink)  
 
Join Date: Aug 1998
Location: England
Posts: 1,930
Received 7 Likes on 4 Posts
You brought it up; probably because you don't understand what happened.

Still if it helps feed your conspiracy theory that's fine.
Roland Pulfrew is offline  
Old 27th Feb 2014, 08:25
  #244 (permalink)  
 
Join Date: Mar 2003
Location: Australia
Posts: 398
Likes: 0
Received 0 Likes on 0 Posts
Doesn't say much for Spry's much-vaunted Just Culture if so....
Anyone over there ever heard of the next step, a generative culture?
Yeller_Gait is offline  
Old 28th Feb 2014, 10:47
  #245 (permalink)  
 
Join Date: Nov 2000
Location: UK
Age: 69
Posts: 1,405
Received 40 Likes on 22 Posts
Airbus have advised airlines that there is no technical issue from this incident that requires specific recommendations to be made to them.
beardy is offline  
Old 2nd Mar 2014, 15:20
  #246 (permalink)  
 
Join Date: Aug 2004
Location: Home
Posts: 1,020
Likes: 0
Received 4 Likes on 4 Posts
beardy

Why then is incident Voyager still grounded in Turkey pending a ferry back.(allegedly)
cessnapete is offline  
Old 2nd Mar 2014, 16:08
  #247 (permalink)  
 
Join Date: Nov 2000
Location: UK
Age: 69
Posts: 1,405
Received 40 Likes on 22 Posts
cessnapete

I have no idea.

You seem to be alleging that it is still on the ground in Turkey (is it?), perhaps you know more and would like to enlighten us all?
beardy is offline  
Old 2nd Mar 2014, 16:38
  #248 (permalink)  
 
Join Date: Jul 2000
Location: Back from the sandpit
Age: 63
Posts: 492
Likes: 0
Received 0 Likes on 0 Posts
According to Plane Finder Voyager ZZ335 / RRR2724 was squawking 7600 over Bristol today at 1254z, was only for a short while so poss switch pigs.
Top Bunk Tester is offline  
Old 2nd Mar 2014, 18:22
  #249 (permalink)  
 
Join Date: Feb 2012
Location: raf
Posts: 610
Likes: 0
Received 0 Likes on 0 Posts
According to Plane Finder Voyager ZZ335 / RRR2724 was squawking 7600 over Bristol today at 1254z, was only for a short while so poss switch pigs.
I was looking up IFF codes on wikipedia. 7600 = Comms failure.

There's some very unusual allocations, such as 4442 to 4446... Reserved for operations above FL600 for Lockheed from Air Force Plant 42 (USA).

http://en.wikipedia.org/wiki/Transponder_(aviation)
gr4techie is offline  
Old 2nd Mar 2014, 18:54
  #250 (permalink)  
 
Join Date: May 1999
Location: Quite near 'An aerodrome somewhere in England'
Posts: 26,814
Received 270 Likes on 109 Posts
TBT, if it was pukka, it wouldn't have been the first Voyager total radio failure....
BEagle is offline  
Old 2nd Mar 2014, 19:17
  #251 (permalink)  
 
Join Date: Nov 2000
Location: UK
Age: 69
Posts: 1,405
Received 40 Likes on 22 Posts
Exclamation Early Voyager Radio problems and their resolution

WARNING: thread drift

http://history.nasa.gov/SP-4219/Chapter11.html

In late November 1977, while the two Voyagers were still on route to Jupiter, one of Voyager 2's two duplicate radio transmitters began to degrade. It was switched to low-power mode to nurse it along. Something was wrong, but there was no way to know exactly what. Months later, in April 1978, the Voyager team discovered that Voyager 2's backup receiver had failed to detect signals sent from Earth because of a shorted capacitor. The primary radio receiver suddenly failed completely, as well. Voyager 2 was silent. Continuing to Uranus and Neptune was no longer possible, unless a way could be found to communicate with the backup receiver. Moreover, the failure of the Voyager 2 primary radio system had potential repercussions beyond the Voyager project. Its radio equipment was very similar to that on Pioneer Venus, which was launched the following month, in May 1978. 78

Normally, the radio receiver automatically compensated for the Doppler shift of signals transmitted from Earth. The changing velocity and direction of the spacecraft relative to Earth caused this Doppler shift. Without the ability to compensate for the Doppler shift, the Voyager 2 radio system could not detect any signals sent to it. The solution to Voyager 2's radio problems came from NASA Deep Space Network engineers. They prepared computer tapes that slowly varied the frequency of the radio signals transmitted from Earth in order to compensate for the expected Doppler shift. The Deep Space Network station outside Madrid transmitted the first test signals on April 13, 1978. Fifty-three minutes later, Voyager 2's acknowledgement returned. The trick worked. As a backup measure, in October 1978, Voyager 2's memory banks were loaded to the brim with commands that would provide
beardy is offline  
Old 2nd Mar 2014, 20:15
  #252 (permalink)  
 
Join Date: Dec 2007
Location: UK
Posts: 27
Likes: 0
Received 0 Likes on 0 Posts
I believe that ZZ333 returned to Brize today at approx 1700 hrs after an uneventful flight from Incirlik.
mr snow is offline  
Old 2nd Mar 2014, 20:16
  #253 (permalink)  
 
Join Date: May 1999
Location: Quite near 'An aerodrome somewhere in England'
Posts: 26,814
Received 270 Likes on 109 Posts
TBT, if it was pukka, it wouldn't have been the first Airbus A330MRTT Voyager total radio failure....
BEagle is offline  
Old 2nd Mar 2014, 20:38
  #254 (permalink)  
 
Join Date: Jul 2000
Location: Back from the sandpit
Age: 63
Posts: 492
Likes: 0
Received 0 Likes on 0 Posts
And a little more thread drift, being totally sad I have Plane Finder set to alert on 75, 76 & 7700. It's amazing the amount of Sleazy Jets that squawk 7700 in a week. A lot of medical emergencies but I wonder how many are fuel priorities given their alleged propensity for cutting fuel corners?
Top Bunk Tester is offline  
Old 2nd Mar 2014, 21:23
  #255 (permalink)  
 
Join Date: Jun 2002
Location: London Village
Posts: 95
Likes: 0
Received 0 Likes on 0 Posts
I suspect Easyjet are crewed by very well trained and capable pilots. Do you honestly think they would routinely put their little pink bodies at risk by carrying so little fuel as to regularly require Mayday Calls?
Redcarpet is offline  
Old 2nd Mar 2014, 21:24
  #256 (permalink)  
 
Join Date: Apr 1999
Location: Manchester, UK
Posts: 1,958
Likes: 0
Received 0 Likes on 0 Posts
Easyjet have a lot of aircraft -just short of 200, and they're all flying most of the day. I haven't heard any allegations of them cutting corners, fuel or otherwise. Are you making one?

Last edited by ShotOne; 3rd Mar 2014 at 09:27.
ShotOne is offline  
Old 2nd Mar 2014, 22:04
  #257 (permalink)  
 
Join Date: Jul 2000
Location: Back from the sandpit
Age: 63
Posts: 492
Likes: 0
Received 0 Likes on 0 Posts
I'm not but I believe Channel 4 did not so many weeks ago, I seem to recall that an Orange and a Green airline were implicated and allegedly heads rolled for talking to the program, just sayin'
Top Bunk Tester is offline  
Old 3rd Mar 2014, 09:26
  #258 (permalink)  
 
Join Date: Apr 1999
Location: Manchester, UK
Posts: 1,958
Likes: 0
Received 0 Likes on 0 Posts
Wrong airline mate. But yes, heads did roll. Interestingly C4's principal charge against Ryanair was of having a "non-transparent safety culture". Does that perhaps bring us back on-thread?
ShotOne is offline  
Old 16th Mar 2014, 04:14
  #259 (permalink)  
 
Join Date: Jul 2008
Location: Top floor last room on the left.
Posts: 19
Likes: 0
Received 0 Likes on 0 Posts
Has a cause been found yet?? Just sitting here in my armrest chair and wondering....
greenhornet is offline  
Old 16th Mar 2014, 06:53
  #260 (permalink)  
 
Join Date: Sep 2004
Location: oxford
Posts: 469
Likes: 0
Received 0 Likes on 0 Posts
On going SI.
lj101 is offline  


Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

Copyright © 2024 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.