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

Helicopter missing in the Med

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

Helicopter missing in the Med

Old 9th May 2020, 04:05
  #41 (permalink)  
 
Join Date: Mar 2005
Location: CA
Posts: 86
Received 0 Likes on 0 Posts
Originally Posted by 212man
.... I'm not sure why you would single out FBW?..........

Ahhhhhh.......maybe because he had read this ..........?
.
gwillie is offline  
Old 12th May 2020, 04:56
  #42 (permalink)  
 
Join Date: Sep 2005
Location: Montreal
Posts: 714
Received 13 Likes on 10 Posts
News reports now that it was a “buzz job”, while the military continues to destroy its credibility with useless bafflegab. GreyHorizonsHeli called it, both the malicious military obfuscation repeated again by some pinhead, and the Occam’s razor likely cause.

https://nationalpost.com/news/nation...6-c521d21142f4
malabo is offline  
Old 12th May 2020, 07:42
  #43 (permalink)  
 
Join Date: Apr 2000
Location: EGDC
Posts: 10,289
Received 608 Likes on 266 Posts
It will be very sad if this turns out to be another 'Catterick Puma' accident caused by wazzing and zooming at low level (this time over the sea).
crab@SAAvn.co.uk is offline  
Old 13th May 2020, 15:27
  #44 (permalink)  
 
Join Date: Oct 1999
Location: Beyond the black stump!
Posts: 1,417
Received 14 Likes on 7 Posts
The way that information is being released over this accident is a little concerning. As time passes, it is now apparent that the helicopter was in sight of the ship and crew and they witnessed the crash. Now it appears that the helicopter was engaged in a high-speed low-level pass;

Quote... "Multiple defence sources tell CBC News that at the time of the crash, the Cyclone was conducting a high-speed, low-level photo pass of HMCS Fredericton, a manoeuvre known in the air force as a "Brownie Run" after a NATO standard camera.

Without warning, the helicopter suddenly pitched forward and "flew into the ocean," said the sources, who were granted anonymity because of the sensitivity of the investigation."...

The official focus is on the flight control system and software, but let's not get too far without ensuring an investigation that starts with including what exactly was going on at the time.

https://www.cbc.ca/news/politics/cyc...rces-1.5566656

Cyclic Hotline is offline  
Old 13th May 2020, 16:33
  #45 (permalink)  
 
Join Date: Apr 2000
Location: EGDC
Posts: 10,289
Received 608 Likes on 266 Posts
If there is a vulnerability in the Flight Control System the proximity to the mobile RadHaz that is a warship could have been a trigger.
crab@SAAvn.co.uk is offline  
Old 13th May 2020, 17:06
  #46 (permalink)  
 
Join Date: May 2016
Location: Connecticut
Posts: 29
Likes: 0
Received 1 Like on 1 Post
Originally Posted by [email protected]
If there is a vulnerability in the Flight Control System the proximity to the mobile RadHaz that is a warship could have been a trigger.
Not impossible given the relatively low number of fleet hours for the type, but I'd assume this to be a pretty low percentage based on the similarity to the FCS of the baseline S92, as well as the lessons learned from the extensive EMI/RFI testing/hardening done for the VH variant.

Is this just a spitball or do you have a data point in mind?
OttoRotate is offline  
Old 13th May 2020, 18:32
  #47 (permalink)  
 
Join Date: Jan 2009
Location: Sweden
Age: 56
Posts: 224
Received 4 Likes on 4 Posts
Originally Posted by OttoRotate
Not impossible given the relatively low number of fleet hours for the type, but I'd assume this to be a pretty low percentage based on the similarity to the FCS of the baseline S92, as well as the lessons learned from the extensive EMI/RFI testing/hardening done for the VH variant.

Is this just a spitball or do you have a data point in mind?
CH-148 = FBW, S92 not FBW if I recall it correctly. Not that similar systems I guess.


AAKEE is offline  
Old 13th May 2020, 19:03
  #48 (permalink)  
 
Join Date: Nov 2009
Location: Inverness-shire, Ross-shire
Posts: 1,452
Received 20 Likes on 14 Posts
And since this aircraft had the interim specification, what do we know about the EMC/EMI spec on interim aircraft?
jimf671 is online now  
Old 13th May 2020, 19:09
  #49 (permalink)  
 
Join Date: May 2017
Location: Atlantic Ocean
Posts: 98
Received 1 Like on 1 Post
I've made a quick search but couldn't find if the final version of the VH-92A will have FBW or conventional flight controls. Does anybody know?
Jimmy. is offline  
Old 13th May 2020, 19:58
  #50 (permalink)  
 
Join Date: Jan 2009
Location: Sweden
Age: 56
Posts: 224
Received 4 Likes on 4 Posts
Originally Posted by Jimmy.
I've made a quick search but couldn't find if the final version of the VH-92A will have FBW or conventional flight controls. Does anybody know?
The military version H-92 is supposed to have FBW and I guess the VH-92 is a derative from H-92.

https://www.airforce-technology.com/projects/superhawk/
AAKEE is offline  
Old 14th May 2020, 10:25
  #51 (permalink)  
 
Join Date: Mar 2016
Location: N of 49th parallel
Posts: 197
Received 0 Likes on 0 Posts
"Without warning, the helicopter suddenly pitched forward and "flew into the ocean," said the sources, who were granted anonymity because of the sensitivity of the investigation."..."

Of course the pitching forward could have been caused by the aircraft coming into contact with the sea. To the observer it would be difficult to know which came first, nose down or contact, if the aircraft was indeed operating a few feet above the surface at high speed.
Apate is offline  
Old 14th May 2020, 12:49
  #52 (permalink)  
 
Join Date: Sep 2017
Location: Canada
Posts: 339
Likes: 0
Received 1 Like on 1 Post
as well, the mirage effect of the horizon, depending on the conditions could skew not only the witness' perception, but also the pilots I would assume.


GrayHorizonsHeli is offline  
Old 14th May 2020, 13:13
  #53 (permalink)  
 
Join Date: Jun 2016
Location: Stagnation Point
Posts: 62
Likes: 0
Received 1 Like on 1 Post
Originally Posted by AAKEE
The military version H-92 is supposed to have FBW and I guess the VH-92 is a derative from H-92.

https://www.airforce-technology.com/projects/superhawk/

The VH-92 model designation could be a little misleading.

From a LM release:

"The VH-92A aircraft is based on Sikorsky’s successful and FAA-certified S-92A commercial aircraft, which recently surpassed one million flight hours. The S-92A aircraft, assembled in Coatesville, Pennsylvania, is being modified to include integration of government-defined missions systems and an executive interior."

(Bold applied by me.)

https://news.lockheedmartin.com/2017...361.1500608027

The CH-148 main rotor system differs significantly from the S-92A in that the former has an automatic blade fold system and increased rotor diameter, among other differences. To summarize, the VH-92 essentially starts life as a "green" S-92A.

Droop Snoot is offline  
Old 14th May 2020, 17:31
  #54 (permalink)  
 
Join Date: Nov 2009
Location: Inverness-shire, Ross-shire
Posts: 1,452
Received 20 Likes on 14 Posts
A lot more V than H then, whereas H-92/CH-148 is a quite different animal.
jimf671 is online now  
Old 18th May 2020, 15:54
  #55 (permalink)  
 
Join Date: Oct 1999
Location: Beyond the black stump!
Posts: 1,417
Received 14 Likes on 7 Posts
Apparently the media is starting to realize that the information being supplied was a little disingenuous.

https://www.thechronicleherald.ca/op...pdates-450994/
Cyclic Hotline is offline  
Old 18th May 2020, 17:57
  #56 (permalink)  
 
Join Date: Mar 2007
Location: Hobe Sound, Florida
Posts: 949
Received 32 Likes on 26 Posts
CH,sorry to report that at least here in South Florida,the Chronicle/Herald requires a subscription before one can read the article.
JohnDixson is offline  
Old 18th May 2020, 18:15
  #57 (permalink)  
 
Join Date: Oct 1999
Location: Den Haag
Age: 57
Posts: 6,217
Received 315 Likes on 175 Posts
Originally Posted by JohnDixson
CH,sorry to report that at least here in South Florida,the Chronicle/Herald requires a subscription before one can read the article.
for some reason it says the message is too short to post, so I’m writing this! ( I guess it doesn’t recognise text in quotes?)

SCOTT TAYLOR



On April 29 an RCAF Cyclone helicopter crashed in the Ionian Sea while returning to HMCS Fredericton from a training mission. Word of this tragedy was first reported by Greek news outlets and it was soon circulating on Canadian social media platforms.

Most mainstream media reporters were leery that this story could in fact be ‘fake news’ as the Greek media were reporting the downed helicopter to be a Sikorsky Sea King, which are no longer in service with the RCN.

When DND did issue a formal statement on April 30, Canadians were advised that “One member of the Canadian Armed Forces (CAF) was killed … and five other members remain missing following an accident involving a Royal Canadian Air Force (RCAF) CH-148 Cyclone helicopter.”

We were also informed that “HMCS Fredericton and NATO allies continue to search for the other five members of the helicopters crew.” Details on the cause of the crash were unknown and media were told the crew of HMCS Fredericton “had lost contact with the helicopter” prior to the crash.
When this story did break in Canada, with official confirmation and complete with the name of the individual killed and the names of the five “confirmed missing” it resonated throughout the military community like a wildfire. The scenario painted was that of a mystery crash sparking a major search and rescue operation by the NATO naval task group.

Commentators pondered the vastness of the Ionian Sea posing a challenge for the searchers, and social media posters prayed for the rescue of the five missing members.

Late in the afternoon on May 1, a full 48 hours after the crash, DND issued an updated statement wherein the ‘confirmed missing’ were now “presumed deceased.” No longer was it a ‘search and rescue’ operation, it had transitioned into a ‘search and recovery’ task.

As a nation united in grief Canada mourned the loss of Captains Brenden Ian MacDonald, Kevin Hagen, Maxime Miron-Morin, Sub-Lieutenants Abbigail Cowbrough, Matthew Pyke and Master-Corporal Matthew Cousins.

Once the initial shock of this tragedy subsided, additional details of the crash began to surface. It turns out that the Cyclone was in sight of the Fredericton at the time of the accident. In full view in fact as the helicopter was allegedly doing a low level flypast as part of a photo-shoot when it suddenly and violently plunged into the waves.

DND has since confirmed that eyewitness testimony will be part of their investigation into the cause of the crash. With this being the case one has to wonder why the Canadian media, myself included, were being fed such deceptive details in the initial 48 hours.

The Fredericton did not ‘lose contact’ with the helicopter if the crew actually watched it crash. The search site would have involved a few hundred square feet of ocean, not the entire Ionian Sea.

What makes no sense is why someone in the DND communication chain-of-command would have felt it a good idea to change the details to add some unnecessary mystery to the incident, not to mention generating false hope among friends and family of the five ‘confirmed missing.’

There would be no need to cover up the fact that the helicopter was doing a photo pass at the time, as everyone familiar with RCN operations knows this is a routine exercise.

I understand that DND would want to have complete certainty before announcing the death of the crew to the public. However if from the outset we were told the Cyclone crash was witnessed by sailors aboard Fredericton and no survivors were seen, that would have been more accurate.

In this era of ‘fake news’ by malign actors we need our official sources to provide us with accurate details. In this case the DND was inexplicably off the mark
212man is offline  
Old 18th May 2020, 19:23
  #58 (permalink)  
 
Join Date: Mar 2007
Location: Hobe Sound, Florida
Posts: 949
Received 32 Likes on 26 Posts
Thanks,212. Nothing new there. By now one would expect the data and voice recordings had been reviewed by knowledgable folks.
JohnDixson is offline  
Old 18th May 2020, 21:00
  #59 (permalink)  
 
Join Date: Oct 1999
Location: Den Haag
Age: 57
Posts: 6,217
Received 315 Likes on 175 Posts
Originally Posted by JohnDixson
Thanks,212. Nothing new there. By now one would expect the data and voice recordings had been reviewed by knowledgable folks.
Pretty sure they have. Along with the ship to aircraft radio transmissions.
212man is offline  
Old 18th May 2020, 23:44
  #60 (permalink)  
 
Join Date: Jun 2016
Location: Stagnation Point
Posts: 62
Likes: 0
Received 1 Like on 1 Post
JD...

Are there any extraordinary procedures or precautions employed by pilots during an exercise like this, e.g. low altitude cruise flight, especially over water?

Would they likely be in a coupled mode, or hand flying?

DS
Droop Snoot is offline  

Thread Tools
Search this Thread

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

Copyright © 2024 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.