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-   -   4th Aug 2018 Junkers JU52 crashed in Switzerland (https://www.pprune.org/accidents-close-calls/611836-4th-aug-2018-junkers-ju52-crashed-switzerland.html)

ORAC 5th Aug 2018 11:33

A later comment from the site linked in the original post.

“Cable/Rope and NOTAM
By (anonymous) on Sunday, Aug 5th 2018 07:55Z

As one of the installers of the cable mentioned in this report i can ensure you, that the incident is unrelated. We watched the plane fly by high above us and heard the crash loud and clear. The cable was not installed at the time of the incident. Regards”


HarryMann 5th Aug 2018 12:37

Ohhh.. So tragic. Tried to book a flight on one of Lufthansas Ju52s 3 years ago.
180° turn away from rising ground ? Possible adverse gradient wind... Large span aircraft at low speed. Not unlikely inner tip stalled :(

atakacs 5th Aug 2018 12:43

I'm really wondering about that 180. If they actually completed it (it would seem so) a subsequent stall is somewhat odd...
I guess there was no flight recorder of any type fitted. As mentioned by others on board shots are a distinct possibility.

Alpine Flyer 5th Aug 2018 12:48

Swiss police confirms all 20 on board are dead.
RIP. A sad day for historical aviation.

Alanwsg 5th Aug 2018 12:48

Just posted on the BBC & Sky news ....

https://www.bbc.co.uk/news/world-europe-45076060

https://news.sky.com/story/all-20-pe...-alps-11462086

Kerosene Kraut 5th Aug 2018 13:25

https://ibb.co/h0T83z

Looks like trailing smoke or fuel behind the right hand engine. Attitude looks almost stalled?

Onceapilot 5th Aug 2018 13:40

Reported online by BBC,
"Based on the situation at the crash site we can say that the aircraft smashed into ground almost vertically at relatively high speed," said Daniel Knecht of the Swiss Transportation Safety Investigation Board.

"What we can rule out at this point is that there had been a collision before the crash, neither with another aircraft nor with some other obstacle such as a cable."

Again, very sad to have the loss of life confirmed.

OAP

Rob Bamber 5th Aug 2018 13:41

From the BBC and Sky's photos, there was no fire, and it looks like the 3 engines have buried themselves in the soft ground: vertical impact.

Very sad. RIP.

Kerosene Kraut 5th Aug 2018 13:44

Pretty respectable Avherald has the right pictures. What do you mean by wrong crash?
Crash: Ju-Air JU52 at Piz Segnas on Aug 4th 2018, impacted terrain

arketip 5th Aug 2018 13:46

https://cimg5.ibsrv.net/gimg/www.gmf...b6a6330a23.jpg

https://cimg8.ibsrv.net/gimg/www.gmf...a2fa7b2373.jpg

tractorpuller 5th Aug 2018 14:29


Originally Posted by Kerosene Kraut (Post 10215190)
https://ibb.co/h0T83z

Looks like trailing smoke or fuel behind the right hand engine. Attitude looks almost stalled?

Looks like the mountain in the background. I see no smoke.

Kerosene Kraut 5th Aug 2018 15:07

The smoke statement came from Swiss TV.

biscuit74 5th Aug 2018 15:25

I see the Avherald report notes a local weather station stating winds were from the North gusting up to 35 knots. Looking at the map provided in the same article showing the police indication of the crash site location, I'd imagine strong potential for lots of curl over, turbulence and downdraft in that area - though that would be something two experienced Swiss pilots would be very well aware of.

A very great shame & tragedy for those involved. The Tante Ju is an iconic aircraft of distinctive looks and sound.

weatherdude 5th Aug 2018 15:38

Wind
 
No, this is not the true. The max gust at Crap (Rock) Masegn at the time was a Max of 48 kph Hourly gusts in the area




Originally Posted by biscuit74 (Post 10215275)
I see the Avherald report notes a local weather station stating winds were from the North gusting up to 35 knots. Looking at the map provided in the same article showing the police indication of the crash site location, I'd imagine strong potential for lots of curl over, turbulence and downdraft in that area - though that would be something two experienced Swiss pilots would be very well aware of.

A very great shame & tragedy for those involved. The Tante Ju is an iconic aircraft of distinctive looks and sound.


HarryMann 5th Aug 2018 15:45

A wind of even 35kph could still create a significant rotor effect downwind of a hole, slot or sharp ridge...

Onceapilot 5th Aug 2018 15:47

The description of "almost vertical, at relatively high speed" seems very broad brush at such an early stage, and I am surprised that the official would say this. Certainly, there appears to be no recognisable wreckage trail and the aircraft seems to lie in a confined area. Due to the hard nature of the rock scree surface and its steep angle, I presume that the aircraft descended at a steep relative angle, either stalled/slow or in autorotation. Speed would seem to have been relatively slow, not high. The wing appears to be complete and the right engine in place. Despite the relative slow speed, the hard surface and a steep descent will have caused the heavy disruption of the forward fuselage structure. Very sad though, that Auntie Ju was not able to force land a little less forcefully.

OAP

what next 5th Aug 2018 16:01


Originally Posted by Onceapilot (Post 10215289)
...and I am surprised that the official would say this....

As I understand it there are several eyewitnesses. And "high speed" for such an aircraft is not the same as for a modern one. Even in a vertical dive it will hardly exceed 150...200kt.

Onceapilot 5th Aug 2018 16:10


Originally Posted by what next (Post 10215296)
As I understand it there are several eyewitnesses. And "high speed" for such an aircraft is not the same as for a modern one. Even in a vertical dive it will hardly exceed 150...200kt.

Yes, and it wasn't going high speed IMO. That is why I am surprised he said it.

OAP

glad rag 5th Aug 2018 16:13

Post 23 & 39 first image?
 
It may well just be coincidence that the aircraft has ended up underneath what appears to be the Martinsloch....?

https://cimg6.ibsrv.net/gimg/www.gmf...aa92e4751d.jpg


jimjim1 5th Aug 2018 16:31


Originally Posted by Toryu (Post 10215045)
The picture we're seeing on avherald has been shot with a telelens and only shows a narrow section of the surroundings. I'd say it's shot about 20 degrees downslope and thus gives the illusion of relatively flat terrain.

The german Wiki-article shows this picture of the crash-area landscape:
https://cimg9.ibsrv.net/gimg/www.gmf...8eed0a5ef4.jpg

The crash-site would be between left of the two distinctive boulders in the center/ center-left of the picture.

They would have been flying upslope (to the right) this valley, probably trying to get over the pass:
https://cimg4.ibsrv.net/gimg/www.gmf...728751383a.jpg


Note: Since I can't post direct URLs now, you'll have to go the hard way, copy the links into your browser and edit-out the space between "h" and the rest of the link.

Can anybody confirm (or deny) this routing?

Re-posted with images.


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