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Dreadle Treadle  
User currently offlineKimon From , joined Dec 1969, posts, RR:
Posted (4 years 6 months 2 days 6 hours ago) and read 1609 times:

Anyone understands what this is?
Many thanks!

7 replies: All unread, jump to last
 
User currently offlineTdscanuck From Canada, joined Jan 2006, 12709 posts, RR: 80
Reply 1, posted (4 years 6 months 2 days 6 hours ago) and read 1602 times:



Quoting Kimon (Thread starter):
Anyone understands what this is?

What context are we talking about? There's a cockpit aural warning on Boeing's that could be described as "dreadle treadle" although I usually hear it called "deedle deedle".

Tom.


User currently offlineKimon From , joined Dec 1969, posts, RR:
Reply 2, posted (4 years 6 months 2 days 5 hours ago) and read 1580 times:

http://www.iasa.com.au/folders/Safety_Issues/others/dreadle.html

Hi Tom,
Hope you can make head or tail of it.
Kimon


User currently offlineTdscanuck From Canada, joined Jan 2006, 12709 posts, RR: 80
Reply 3, posted (4 years 6 months 2 days 4 hours ago) and read 1574 times:



Quoting Kimon (Reply 2):
http://www.iasa.com.au/folders/Safety_Issues/others/dreadle.html

Interesting; I hadn't seen this before. What they're proposing is the airport equivalent of traffic lights + redlight cameras. The treadle they're talking about is a pressure-sensitive device that detects when an aircraft rolls over it; if an aircraft has been cleared to cross it, everything proceeds normally. If nobody's been cleared to cross it, it squeals an alarm over VHF so "everyone" knows that somebody isn't where they're supposed to be.

I can think of lots of potential logistical problems with implementation, but none are insurmountable.

Tom.


User currently offlineJoeCanuck From Canada, joined Dec 2005, 5409 posts, RR: 30
Reply 4, posted (4 years 6 months 2 days 1 hour ago) and read 1531 times:

Honeywell seems to be a leader in runway incursion prevention with their RAAS, Smartrunway and Smartlanding systems.

I believe this system includes a screen in the tower which monitors all ground traffic live and issues warnings on any incursions.



What the...?
User currently offlineKimon From , joined Dec 1969, posts, RR:
Reply 5, posted (4 years 6 months 1 day 17 hours ago) and read 1441 times:

JoeCanuck:
Do you have more on this RAAS?
Any links?
Many thanks,
Kimon


User currently offlineCosmicCruiser From United States of America, joined Feb 2005, 2255 posts, RR: 15
Reply 6, posted (4 years 6 months 1 day 13 hours ago) and read 1402 times:



Quoting Kimon (Reply 5):
Do you have more on this RAAS?

We have it in the MD-11s. It alerts the crew when approaching a runway from any point, taxiway intersection, the end and inflight on short final. After touchdown it will alert the crew when 3000' is remaining on rollout and increments after that.


User currently offlineTdscanuck From Canada, joined Jan 2006, 12709 posts, RR: 80
Reply 7, posted (4 years 6 months 1 day 3 hours ago) and read 1314 times:



Quoting Kimon (Reply 5):
Do you have more on this RAAS?
Any links?

http://www51.honeywell.com/aero/Prod...tronics/Egpws-Home3/raas.html?c=21

Tom.


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