Go Back   English Forum Switzerland > Living in Switzerland > Swiss politics/news  
Reply
 
Thread Tools Display Modes
  #21  
Old 18.02.2011, 17:02
Nev
 
Posts: n/a
Re: Helicopter crash - 6 tourists injured

It's been a bad couple of months for air accidents in the Valais/Vaud alps. In Jan a helicopter took off from Bex and crashed in the mountains in front of the pilot's family killing him and his friend. Last week a light aircraft carrying Mum, Dad and two teenage kids crashed on top of the mountains above Sion killing everybody on board. Then there was the helicopter accident in Diablarets the OP mentions. Accidents are one thing but how about this one:

http://www.bluewin.ch/fr/index.php/1...itsdivers/sda/

In a nutshell, last week a helicopter in the process of landing skiers near Crans Montana had it's rotors pelted by some idiot with lumps of ice. Luckily the pilot was able to control the aircraft.
Reply With Quote
  #22  
Old 18.02.2011, 17:20
Castro's Avatar
à la mod
 
Join Date: Nov 2007
Location: ZG
Posts: 5,730
Groaned at 126 Times in 102 Posts
Thanked 17,262 Times in 5,480 Posts
Castro has a reputation beyond reputeCastro has a reputation beyond reputeCastro has a reputation beyond reputeCastro has a reputation beyond reputeCastro has a reputation beyond reputeCastro has a reputation beyond repute
Re: Helicopter crash - 6 tourists injured

Quote:
View Post
Don't forget coaxial rotors:-
Co axial helicopters are great in principle since you get 100% of the power going to the rotor blades, as opposed to only 70% with a conventional helicopter (the tail rotor robs ~30% of the engine's power counteracting torque). The main issue is the complexity of the head design and the risk of blade strike
Reply With Quote
  #23  
Old 18.02.2011, 20:59
Senior Member
 
Join Date: Dec 2010
Location: St Elsewhere
Posts: 332
Groaned at 15 Times in 7 Posts
Thanked 320 Times in 151 Posts
Brass427 has earned the respect of manyBrass427 has earned the respect of manyBrass427 has earned the respect of many
Re: Helicopter crash - 6 tourists injured

Quote:
View Post
Agreed -- poor word choice on my part. One would reduce power and enter auto-rotation; turning the engine off entirely really takes away all your options, doesn't it?
They sorta drop in a controlled fashion. We took some AK rounds in the trans of our Huey and by the time we'd hit we'd only rotated once around the axis, but our gunner had to grab two guys from sliding out. They lost their M-16s and one lost his helmet, but he managed to catch one of the skids and slide back in before we 'touched' down. Yeah they can make it.
Reply With Quote
  #24  
Old 18.02.2011, 20:59
Senior Member
 
Join Date: Dec 2010
Location: St Elsewhere
Posts: 332
Groaned at 15 Times in 7 Posts
Thanked 320 Times in 151 Posts
Brass427 has earned the respect of manyBrass427 has earned the respect of manyBrass427 has earned the respect of many
Re: Helicopter crash - 6 tourists injured

Quote:
View Post
They sorta drop in a controlled fashion. We took some AK rounds in the trans of our Huey and by the time we'd hit we'd only rotated once around the axis, but our gunner had to grab two guys from sliding out. They lost their M-16s and one lost his helmet, but he managed to catch one of the skids and slide back in before we 'touched' down. Yeah they can make it.

Just kidding. Never happened.
Reply With Quote
  #25  
Old 19.02.2011, 04:46
Wollishofener's Avatar
Forum Legend
 
Join Date: Jun 2009
Location: Glattbrugg
Posts: 18,978
Groaned at 332 Times in 257 Posts
Thanked 11,715 Times in 6,858 Posts
Wollishofener has a reputation beyond reputeWollishofener has a reputation beyond reputeWollishofener has a reputation beyond reputeWollishofener has a reputation beyond reputeWollishofener has a reputation beyond reputeWollishofener has a reputation beyond repute
Re: Helicopter crash - 6 tourists injured

Quote:
View Post
Not exactly the most reliable of sources the Daily Mail because this is a Eurocopter AS350 would only hold the 6 passengers that are injured and not 12 that is stated in the article:-

The helicopter pilot and five of the twelve passengers on board suffered light to medium injuries, the director of Heli Suisse, Alex Baechlin, told The Associated Press

Read more: http://www.dailymail.co.uk/news/arti...#ixzz1EHqELzb6
http://www.dailymail.co.uk/news/arti...ki-resort.html

Also in German Paper
http://www.mz-web.de/servlet/Content...=1297923949182

And French:-
http://www.24heures.ch/accident-heli...ets-2011-02-17

It is easy to verify, as it is THIS helicopter with 6 seats

--


Registration: HB-ZHI
Hersteller: EUROCOPTER
Lfz.-Muster/Typ: AS 350 B2
Marketingbezeichnung: Ecureuil
Certification Basis: 14 CFR FAR Part 27
Airworthiness Category: Small Rotorcraft
Zuordnung: EASA
Aircraft Address: 4932290 (dec) 4b42c2 (hex) 22641302 (oct) 010010110100001011000010 (bin)
Baujahr: 2006
Werknummer: 9075
Anzahl Sitze (Indikativ): 6 Max.
Abflugmasse (kg): 2250
Triebwerkmuster: ARRIEL 1D1
Haupteigentümer: Sandoz, Pierre, Chemin de Saugy, 1482 Cugy FR, Schweiz
Haupthalter: Heliswiss, Schweizerische Helicopter AG, 3123 Belp, Schweiz


----------------

out of the BAZL WEBsite

and here a photo of when it was operating :



-
Reply With Quote
  #26  
Old 19.02.2011, 09:39
Colonelboris's Avatar
Forum Veteran
 
Join Date: Mar 2007
Location: Southampton, UK
Posts: 1,137
Groaned at 17 Times in 17 Posts
Thanked 1,273 Times in 671 Posts
Colonelboris has a reputation beyond reputeColonelboris has a reputation beyond reputeColonelboris has a reputation beyond reputeColonelboris has a reputation beyond reputeColonelboris has a reputation beyond repute
Re: Helicopter crash - 6 tourists injured

Quote:
View Post
Just kidding. Never happened.
How many Vietnam War veterans does it take to change a light bulb?
You don't know? OF COURSE YOU DON'T KNOW, YOU WEREN'T THERE, MAN!
Reply With Quote
  #27  
Old 19.02.2011, 12:53
Guest
 
Posts: n/a
Re: Helicopter crash - 6 tourists injured

Quote:
View Post
If a tail rotor was always needed to counter the rotation of the main rotor (and not engine torque), then an autogyro would also a require a tail rotor - which it doesn't. It has a free turning, unpowered main rotor to provide lift (i.e. rotary wing), which only rotates through forward motion provided by a "normal" engine-powered propeller, working in the horizontal plain.
Quote:
View Post
I would agree with you there, I also thought the rear wing (like on a plane) was also there to aid with counteracting the engine torque.
Bit of confusion going on here

Antitorque isn't just a "complicated rudder" - it's a system that needs to function at any speed including no speed, backwards and sideways. Few fixed wing or autogyros do this, they tend to go forwards only, so airflow over a rudder suffices for them

Rudder on fixed wing isn't used to compensate for engine torque, aileron is; rudder's needed to compensate for the propwash

And yes, you still need some antitorque for an engine-out autorotation, due to friction in power train bearings etc - much less relative to engine-on, but still needed
Reply With Quote
Reply




Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Injured and need an operation AlexLell Family matters/health 9 21.02.2011 13:18
If you are injured on the slopes.... Natasha Sports / Fitness / Beauty / Wellness 24 01.04.2010 23:12
Michael Owen - injured...again :-( james_w Football/sports 10 06.03.2010 14:07
Button injured in F1 accident monkeynut Jokes/funnies 4 17.04.2009 21:06
What to do when your injured? Swiss Dude General off-topic 111 31.10.2008 20:18


All times are GMT +2. The time now is 14:20.


Powered by vBulletin® Version 3.8.4
Copyright ©2000 - 2022, Jelsoft Enterprises Ltd.
LinkBacks Enabled by vBSEO 3.1.0