Wikiposts
Search

Notices
Tech Log The very best in practical technical discussion on the web

ELT DOUBTS

Thread Tools
 
Search this Thread
 
Old 15th March 2014 | 12:30
  #21 (permalink)  
 
Joined: Jul 2000
Posts: 1,424
Likes: 0
From: Smogsville
LeadSled,

Can you PM or post some linked reports to back this up as I'm interested in following it up with our company.
SMOC is offline  
Reply
Old 15th March 2014 | 12:35
  #22 (permalink)  
 
Joined: Mar 2014
Posts: 1
Likes: 0
From: Saltash Cornwall
Emergency locator beacon (ELB)

I'm truly amazed that no technology exists to eject an emergency locator beacon (E.L.B.) in the event of ditching on the high seas the device could be ejected using a similar device to a vehicle airbag,aft of the pressure bulkhead of course and the device could be on the surface, within seconds if not minutes,and preferably with solar cells to keep the transmitter active as long as possible,finally if the E.L.B had a tether to the structure of the aeroplane
once (the beacon) had surfaced the ditched aeroplane could be located fairly quickly under the waves. I know about the underwater ping type beacon,
but if there is a transmitter atop the the waves, then everybody should know about it's location within a short space of time.
a926da41119f5579e192 is offline  
Reply
Old 15th March 2014 | 12:39
  #23 (permalink)  
10 Anniversary
 
Joined: Jul 2013
Aviation Qualifications: CPL
Posts: 609
Likes: 471
From: Maryland USA
ACR ELECTRONICS AquaLink® 406 GPS Personal Locator Beacon | West Marine


This is what would work in any crash with people still alive and able to move.
island_airphoto is offline  
Reply
Old 15th March 2014 | 16:52
  #24 (permalink)  
 
Joined: Jul 2013
Posts: 31
Likes: 0
From: USA
I'm truly amazed that no technology exists to eject an emergency locator beacon (E.L.B.) in the event of ditching on the high seas...
There are ejectable ELTs, currently in service, as described earlier in this thread by Sawbones62 here: http://www.pprune.org/tech-log/53575...ml#post8370773

Mike


sardak is offline  
Reply
Old 17th March 2014 | 01:51
  #25 (permalink)  
 
Joined: Aug 2010
Posts: 11
Likes: 0
From: SF, CA
ELTs on a/c

I find it curious that the 406 EPIRB, hanging a mere 6' behind my head will automatically deploy and begin transmitting my position to any COSPAS/SARSAT equipped satellite, and in less than 45 seconds, the USCG will know where to come looking for me....like they did a few years back when a whale sunk my friends boat 800 mi. North of Oahu.

How in the hell do I get this kind of technology, that I've carried with me on 5 trips to and from Oahu...and we're still trying to figure out where the hell this plane went down?

Seriously, 30 years in aerospace, and I just don't understand this. Its freaking inexcusable.
SalNichols94807 is offline  
Reply
Old 17th March 2014 | 03:02
  #26 (permalink)  
30 Countries Visited
15 Anniversary
Veteran: Canadian Forces
 
Joined: Aug 2008
Posts: 31
Likes: 8
From: KAPL
Example ejectable ELT/CPI

Here's an example for the USAF C-141 original CPI, including multiple damage sensors throughout the aircraft and provision for a tape recorder for the CVR AN/URT-26 Crash Position Indicator

Other offshore industry and military examples can be found on Google.

The extra cost over ELTs made the CPI unpalatable for regulators and airlines, but that may change...with modern electronics it can be a very much smaller device using the 406Mhz technology and solid-state memory for FDR/CVR:
http://www.hr-smith.com/images/stories/503-CPI.pdf

Last edited by Sawbones62; 17th March 2014 at 03:21. Reason: Fixed link
Sawbones62 is offline  
Reply
Old 17th March 2014 | 12:53
  #27 (permalink)  
 
Joined: May 2001
Posts: 445
Likes: 0
From: Mumbai, INDIA
Both types of ELTs can be on board.....Impact type that transmits on exceeding 5g impact and water activated type, that transmits on touching water.
HAWK21M is offline  
Reply

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



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

Copyright © 2026 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.