Go Back  PPRuNe Forums > Aircrew Forums > Rotorheads
Reload this Page >

Jervis Bay helicopter crash

Wikiposts
Search

Notices
Rotorheads A haven for helicopter professionals to discuss the things that affect them

Jervis Bay helicopter crash

Thread Tools
 
Search this Thread
 
Old 23rd March 2023 | 20:21
  #21 (permalink)  
 
Joined: Aug 2007
Posts: 755
Likes: 401
From: not where I want to be
Originally Posted by Bug
Witness report phoned in to radio station.

https://www.2gb.com/podcast/helicopt...vis-bay-coast/
Bearing in mind the fallibility of witness evidence this detail suggests there may have been some mechanical issue with the heli prior to the ditching. Initially it seemed a little confusing as to whether 'sparks' occurred at the ditching itself, but later in the clip the witness appears to say it was at the apogee of the flight?

Somewhat more useful than the ABC's video at least, that was a waste of bandwidth from which I learnt nothing...
First_Principal is offline  
Reply
Old 23rd March 2023 | 21:46
  #22 (permalink)  
20 Anniversary
 
Joined: Mar 2005
Posts: 367
Likes: 7
From: Land of the Angles
An accountant!!!

You are such a Dag ozbiggles.

If you are looking for a gun fight, then I’m afraid you are pointing your pistol at the wrong fella, as I merely highlighted the managed risk the USN has for its Sea Hawk crews egress in the event of a survivable entry into water.

The USN is by a mile, the world’s largest operator of the Sea Hawk and has been for well over 30 years now, and from their own experience, they considered that rather than giving the crews a little extra time, the EFS set-up on the SH-60B Sea Hawk was more likely to impede egress, rather than assist, as such the EFS system was subsequently removed, so the USN looked at other methods to preserve life, regular HUET training being one of them.

If you don’t agree with their risk management assessment after close to 40 years of operating the Sea Hawk, that’s your prerogative, but don’t shoot the bookkeeper.
Hilife is offline  
Reply
Old 23rd March 2023 | 23:04
  #23 (permalink)  
 
Joined: Oct 2008
Posts: 1
Likes: 0
From: Australia
Originally Posted by [email protected]
If you want to operate over the water, heavy and below MinSELF - having floats is a no-brainer. MCT Ops certainly fit that profile.

Hoping it won't happen is not risk-mitigation.
It's not that simple. The H-60 family are very "dense" aircraft, and sink faster than a rock with a stone tied to it. Floatation on the classic Seahawk merely reduced the sink rate (and they were filled with helium!). Not to mention the fact that unless the aircraft was inverted while sinking, the bags were just as likely to obstruct the doors/prevent jettison.
tenb is offline  
Reply
Old 23rd March 2023 | 23:42
  #24 (permalink)  
5 Anniversary
 
Joined: Dec 2017
Posts: 636
Likes: 100
From: australia
Originally Posted by Nescafe
One less to trade in against the UH60M.
Originally Posted by golder
At least this one does float. It has been a different story with the UH60M and MH-60R, that has no flotation
This is turning into a vs thread, It wasn't my intention. Australia has real reasons to retire the nh90. The AU$50k CPFH is just one of them. However the US replacement isn't perfect either. We will see what the next gen brings.

The nh90 and Australia
https://www.aspistrategist.org.au/du...l-but-why-now/
The MRH-90 has been costing $35,000 per hour to operate. Last financial year that ballooned to $50,000 and it was probably the final straw.

Last edited by golder; 25th March 2023 at 11:38.
golder is offline  
Reply
Old 24th March 2023 | 02:05
  #25 (permalink)  
10 Anniversary
 
Joined: Sep 2014
Posts: 320
Likes: 56
From: On land
Maybe they should have another crack at the Seasprite?
Nescafe is offline  
Reply
Old 24th March 2023 | 03:33
  #26 (permalink)  
20 Anniversary
 
Joined: Mar 2005
Aviation Qualifications: Military
Posts: 6,563
Likes: 952
From: Aus
Heck you may end up in the local sewage settling pond
We had a chap who had a hydraulics failure in a fixed float B205 and he put it in the most convenient body of water, the local sewage farm. No harm done.

Wessex had a unofficial procedure re popping the floats, last man out stuck his knife in.
megan is offline  
Reply
Old 24th March 2023 | 10:07
  #27 (permalink)  
25 Anniversary
 
Joined: Dec 2000
Posts: 1,018
Likes: 180
From: Australia
https://www.sandiegouniontribune.com...licopter-crash

This is what happens when accountants do risk management.
ozbiggles is offline  
Reply
Old 24th March 2023 | 12:27
  #28 (permalink)  
Community Builder
20 Anniversary
 
Joined: Sep 2004
Aviation Qualifications: ATPL(H)
Posts: 2,378
Likes: 881
From: Canada
Originally Posted by megan
We had a chap who had a hydraulics failure in a fixed float B205 and he put it in the most convenient body of water, the local sewage farm. No harm done.

Wessex had a unofficial procedure re popping the floats, last man out stuck his knife in.
Why didn’t he put it on the ground?

albatross is offline  
Reply
Old 24th March 2023 | 16:23
  #29 (permalink)  
25 Anniversary
 
Joined: Apr 2000
Aviation Qualifications: ATP+Mil
Posts: 10,959
Likes: 1,814
From: EGDC
It's not that simple. The H-60 family are very "dense" aircraft, and sink faster than a rock with a stone tied to it.
So not fit for purpose for over water ops then?
crab@SAAvn.co.uk is offline  
Reply
Old 24th March 2023 | 16:28
  #30 (permalink)  
30 Countries Visited
20 Anniversary
Veteran: Army
Veteran: National Guard
 
Joined: May 2002
Aviation Qualifications: ATP+Mil
Posts: 18,633
Likes: 1,072
From: Downeast
So not fit for purpose for over water ops then?
The US Navy, US Coast Guard, and the USAF along with several other Militaries might challenge that view.

With AAR kit the USAF conducts very long range SAR Ops using the 60.
SASless is offline  
Reply
Old 24th March 2023 | 17:00
  #31 (permalink)  
25 Anniversary
 
Joined: Jan 2000
Posts: 438
Likes: 2
From: Derby
So not fit for purpose for over water ops then?
I still remember the HUET course I did in HMS Dolphin in the early eighties. The exciting wet bits were preceded by a seemingly endless briefing going into great detail about exactly how we would die in every helicopter in NATO's inventory. One highlight was how fast the Lynx would sink. ISTR the lecturer talking about 'sinking trials' of a Lynx in a Scottish loch with divers aboard. Under certain conditions it sank so fast the divers could not physically extract themselves from their seats.
Robbo Jock is offline  
Reply
Old 24th March 2023 | 22:29
  #32 (permalink)  
 
Joined: Aug 2015
Posts: 875
Likes: 27
From: Gerloz
Originally Posted by Robbo Jock
I still remember the HUET course I did in HMS Dolphin in the early eighties. The exciting wet bits were preceded by a seemingly endless briefing going into great detail about exactly how we would die in every helicopter in NATO's inventory. One highlight was how fast the Lynx would sink. ISTR the lecturer talking about 'sinking trials' of a Lynx in a Scottish loch with divers aboard. Under certain conditions it sank so fast the divers could not physically extract themselves from their seats.

Not a Scottish Loch per se. A tank at Glen Fruin near Faslane. Now derelict. And indeed your lecturers spoke the truth. Once that forward compartment filled up with water the thing sank like a rock, floats or no. STAS was ( and is) a great bit of kit…draconian briefs aside.
MENELAUS is offline  
Reply
Old 25th March 2023 | 02:47
  #33 (permalink)  
20 Anniversary
 
Joined: Mar 2005
Aviation Qualifications: Military
Posts: 6,563
Likes: 952
From: Aus
Why didn’t he put it on the ground?
You'd have to ask him, having many hours in the identical configured aircraft I'm not sure how a running landing on roughish ground would turn out. Anyone?
megan is offline  
Reply
Old 25th March 2023 | 07:02
  #34 (permalink)  
25 Anniversary
 
Joined: Dec 2000
Posts: 299
Likes: 9
From: uk
Originally Posted by megan
You'd have to ask him, having many hours in the identical configured aircraft I'm not sure how a running landing on roughish ground would turn out. Anyone?
Having flown other helicopters with fixed floats I would prefer doing an autorotation (take that was the case here) to "water" rather than the ground so that would be my guess as well.
finalchecksplease is offline  
Reply
Old 25th March 2023 | 10:09
  #35 (permalink)  
50 Countries Visited
25 Anniversary
 
Joined: Oct 1999
Aviation Qualifications: ATPL
Posts: 7,373
Likes: 931
From: Den Haag
Originally Posted by MENELAUS
Not a Scottish Loch per se. A tank at Glen Fruin near Faslane. Now derelict. And indeed your lecturers spoke the truth. Once that forward compartment filled up with water the thing sank like a rock, floats or no. STAS was ( and is) a great bit of kit…draconian briefs aside.
If you search for, and read, the Australian board of inquiry report into the SF Blackhawk accident where it bounced off the back of a boat, it’s enlightening. One of the survivors described the hydrodynamic forces as like “sticking your head out of an express train window doing 100 mph”.
212man is offline  
Reply
Old 25th March 2023 | 11:46
  #36 (permalink)  
25 Anniversary
 
Joined: Apr 2000
Aviation Qualifications: ATP+Mil
Posts: 10,959
Likes: 1,814
From: EGDC
Originally Posted by SASless
The US Navy, US Coast Guard, and the USAF along with several other Militaries might challenge that view.

With AAR kit the USAF conducts very long range SAR Ops using the 60.
So you would be happy to sit in a hover over the water below MinSELf/VToss, at high AUM due to all the troops and weapons such that you have no chance of diving on the speed, in an aircraft that you know will sink like a stone and has no flotation gear at all?

I suspect 60 on the long range SAR jobs gets to the casualty with a low enough fuel state to hover OEI, AAR on the way home and mitigates the risks that way - not so much of an option on MCT Ops.
crab@SAAvn.co.uk is offline  
Reply
Old 25th March 2023 | 11:51
  #37 (permalink)  
25 Anniversary
 
Joined: Jun 2001
Aviation Qualifications: ATPL
Posts: 4,576
Likes: 410
From: FNQ ... It's Permanent!
Not much in the news that I can find. Has it been removed from the water yet?
Capt Fathom is offline  
Reply
Old 25th March 2023 | 14:41
  #38 (permalink)  
30 Countries Visited
20 Anniversary
Veteran: Army
Veteran: National Guard
 
Joined: May 2002
Aviation Qualifications: ATP+Mil
Posts: 18,633
Likes: 1,072
From: Downeast
Crab.....you have any accident stats to support your opinion or is it. just 60 envy that prompts your comment?

How many instances of Emergency Float systems not working as advertised and to what sea state are they rated?

Modern day engines are pretty reliable and most modern helicopters do pretty well. on one engine at sea level.

Perhaps hovering over an Alpine Lake in the heat of Summer might offer a problem for an OGE hover.

If I had a four engined. helicopter that would hover on one....I might still want a fifth just for insurance.

Sometimes you do have to trust the Engineeers and Safety Mafia when they offer decisions made upon the Laws of Probability as there is. no perfect helicopter yet to be invented.

Look back the the USAF H-3 Jolly Greens and what they did using AAR while doing Combat SAR missions....and later with the CH-53's.

As always in aviation....there is a certain amount of risk in everything we do.....and never is there zero risk even if the aircraft never leaves the ground.




SASless is offline  
Reply
Old 25th March 2023 | 15:25
  #39 (permalink)  
5 Anniversary
 
Joined: Oct 2016
Posts: 168
Likes: 4
From: NW
It is bizarre to see these hawk lovers all up in arms when clearly EFS was undoubtedly valuable in this incident. Is this whatever on NH90 is bad mentality healthy, if at all?
Mee3 is offline  
Reply
Old 25th March 2023 | 21:13
  #40 (permalink)  
10 Anniversary
 
Joined: Apr 2014
Posts: 80
Likes: 17
From: Sydney
Originally Posted by Capt Fathom
Not much in the news that I can find. Has it been removed from the water yet?
Yep.
https://www.abc.net.au/news/2023-03-...ence/102143148
MJA Chaser is offline  
Reply


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.