Re: Kinked air hoses, turned angle cocks, FRED, and PTC????
Author: jst3751
Date: 11-08-2018 - 09:48

BOB2 Wrote:
-------------------------------------------------------
> A loss of braking from such circumstances, could
> be potentially remedied, if the FRED is properly
> integrated into the PTC system,, is itself,
> properly designed with an adequate communications
> protocol to be able to query and detect FRED
> "failure", into the "active" part of a robust PTC
> architecture. Then, it could be activated, due to
> detecting the "conditions" programmed into the
> final system (like "braking failure")that would
> be programmed into the system, as part of a
> comprehensive and robust PTC system "architecture"
> and final design.

IF the FRED was actually working and just a case of lost communication. From what I have been reading and hearing FRED gets beat up on regularly and can an intial air test really be depended upon to see if FRED will work?

Actually what should be followed up after this accident is what is the failure rate of FRED to respond after x amount of months of use. Should they be required to be fully taken apart and rebuilt every 6 months or a year? Small price to pay for a device that has such a great responsibility.



Subject Written By Date/Time (PST)
  NTSB preliminary report on UP rearend collision in Wyoming OPRRMS 11-05-2018 - 12:01
  Re: NTSB preliminary report on UP rearend collision in Wyoming OPRRMS 11-05-2018 - 12:15
  Re: NTSB preliminary report on UP rearend collision in Wyoming Ross Hall 11-05-2018 - 17:19
  Re: NTSB preliminary report on UP rearend collision in Wyoming Nudge 11-05-2018 - 20:04
  Re: NTSB preliminary report on UP rearend collision in Wyoming amtrakfan4ever 11-05-2018 - 20:44
  Re: NTSB preliminary report on UP rearend collision in Wyoming 1st cajon 11-05-2018 - 21:52
  Re: NTSB preliminary report on UP rearend collision in Wyoming WebDigger 11-05-2018 - 21:17
  Re: NTSB preliminary report on UP rearend collision in Wyoming SPKID 11-06-2018 - 07:26
  Re: NTSB preliminary report on UP rearend collision in Wyoming john 11-06-2018 - 08:11
  Re: NTSB preliminary report on UP rearend collision in Wyoming Espee99 11-06-2018 - 09:37
  Re: NTSB preliminary report on UP rearend collision in Wyoming Retired 11-06-2018 - 10:02
  Kinked air hoses, turned angle cocks, FRED, and PTC???? BOB2 11-06-2018 - 10:29
  Re: Kinked air hoses, turned angle cocks, FRED, and PTC???? jst3751 11-08-2018 - 09:48
  Re: Kinked air hoses, turned angle cocks, FRED, and PTC???? Dr Zarkoff 11-08-2018 - 23:39
  Re: Kinked air hoses, turned angle cocks, FRED, and PTC???? steve 11-11-2018 - 14:23


Go to: Message ListSearch
Subject: 
Your Name: 
Spam prevention:
Please enter the code that you see below in the input field.
  ******   ********  ********   **     **   *******  
 **    **  **    **  **     **  **     **  **     ** 
 **            **    **     **  **     **         ** 
 **           **     ********   *********   *******  
 **          **      **     **  **     **         ** 
 **    **    **      **     **  **     **  **     ** 
  ******     **      ********   **     **   *******  
This message board is maintained by:
Altamont Press Publishing Company