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Helicopter Crash Longford

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Old 18th Jul 2015, 11:01
  #61 (permalink)  
 
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Now the pilot know what is it a : "to small place for land".... Expensive, but a goood lesson..
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Old 18th Jul 2015, 11:55
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Why are they moving this heli from accident site ?
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Old 18th Jul 2015, 12:02
  #63 (permalink)  
 
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Originally Posted by Michael Gee
Why are they moving this heli from accident site ?
It's quite normal - aircraft wrecks lying around the place are an eyesore. ....,
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Old 18th Jul 2015, 12:09
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There was a function booked on the lawn,the mess had to be cleared up so they could set up the marquee.
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Old 18th Jul 2015, 12:28
  #65 (permalink)  
 
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I'm going with this was a bet lost...."I bet you can't park your heli closer to the pub"

I mean..... COME ON!!! How many options do you have???!!!!!!


https://www.google.at/maps/place/Clo...9de2423025eaf5

...P.S. the pacman banging his head on the wall is perfect for this thread.
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Old 18th Jul 2015, 15:57
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"Why are they moving this heli from accident site ?"

Because someone else wanted to land there.
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Old 18th Jul 2015, 19:41
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Dynamic rollover? Don't think so, looks more like disymetry of lift caused by increased induced flow on the building side. Does no one remember their basic PoF lessons warning of the dangers if hovering too close to a hangar? Be warned, Oh best beloved.
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Old 18th Jul 2015, 19:59
  #68 (permalink)  

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SL, the 'dynamic rollover' reference is in relation to the 'granny vid' wetbulb linked to, not this Longford incident as in this one the skids didn't get chance to touch the ground.
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Old 18th Jul 2015, 21:31
  #69 (permalink)  
 
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That helo was perfectly serviceable when I last flew it in 1976......
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Old 19th Jul 2015, 05:00
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Unhappy

Sycamore,

The a/c was perfectly serviceable up to a split second the starboard rotor blade hit the building !!!!
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Old 19th Jul 2015, 07:41
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P1DRIVER;
The a/c was perfectly serviceable up to a split second the starboard rotor blade hit the building !!!!
Red, Blue Yellow, but can't see a Green

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Old 19th Jul 2015, 13:54
  #72 (permalink)  
 
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He could`ve parked it `a la VL`,tail clear over the canal.......but,but...some other eejit would`ve driven a boat into it,or tried to tie up to the hand-hold....
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Old 19th Jul 2015, 18:14
  #73 (permalink)  
 
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Just having another look at the video...

I'm wondering if the first point of impact was the MR making contact with the lamp-post. And if the hole was taken out of the building's wooden cladding by the tail as the aircraft was suddenly rotated.

Have a look at the marks on the lamp-post (roughly in line with the middle of the open window in this photo). Having watched the video a couple more times, it seems this way, but perhaps my imagination.


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Old 19th Jul 2015, 18:49
  #74 (permalink)  
 
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That would be one prime quality heck of a lamp-post. Not even dented...
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Old 19th Jul 2015, 19:48
  #75 (permalink)  

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He could`ve parked it `a la VL`,tail clear over the canal.......but,but...some other eejit would`ve driven a boat into it,or tried to tie up to the hand-hold....
Not sure the distance between the building and canal edge (5-7m?), but with the rotor diameter being 10.5m, I reckon that even if he did manage that without hitting the building the ac would possibly have toppled back into the canal anyway


Have a look at the marks on the lamp-post (roughly in line with the middle of the open window in this photo). Having watched the video a couple more times, it seems this way, but perhaps my imagination.
Looks to me more like sticky tape residue than blade strike marks.

https://www.flickr.com/photos/endafa...38360/sizes/o/

As you can also see on the other posts, including those on the other side of the canal;

https://www.flickr.com/photos/endafa...01768/sizes/k/

And if the hole was taken out of the building's wooden cladding by the tail as the aircraft was suddenly rotated.
That's not even imagination !
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Old 19th Jul 2015, 20:43
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Sid, I reckon, based upon Google Earth that there is about 20ft between building and canal.

Than being the case, in a side-on landing, as was attempted, the left skid would be about 6 inches over the edge - so actually no room.

And in a nose-in attempt, there would only be inches to spare between MR and building with the skid heels flush with the edge.
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Old 19th Jul 2015, 21:48
  #77 (permalink)  

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Anyone have any cuttlefish?

Anyway, it will be interesting to see the 'cockpit gradient'

Last edited by SilsoeSid; 19th Jul 2015 at 22:10.
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Old 2nd Mar 2017, 20:22
  #78 (permalink)  
 
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Report now out: http://www.aaiu.ie/sites/default/fil...202017-004.pdf
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Old 3rd Mar 2017, 00:02
  #79 (permalink)  
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Another example of where a reasonable level of flying experience was no protection against extremely poor judgement.
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Old 3rd Mar 2017, 07:06
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This pilot considered that the landing site was quote "tight" but "very do-able". It was later proven that the rotor tip clearance was 81cm maximum.

IIRC on SAR, with a crewman to monitor tip clearance, the minimum tip clearance for non life saving was 10 feet laterally.

What is your personal minimum for lateral rotor tip clearance? Does your company publish one or is it left to your discretion?
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