Dolly landing gone wrong.
Thread Starter
Joined: Jul 2001
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From: Florida
Dolly landing gone wrong.
Don't know if this has been posted before.
Take care if you land on a dolly.
Click on the link at the bottom to see the movie.
http://www.journaldujura.ch/Nouvelle...3%A9gion/31485
Take care if you land on a dolly.
Click on the link at the bottom to see the movie.
http://www.journaldujura.ch/Nouvelle...3%A9gion/31485
Joined: May 2003
Posts: 900
Likes: 26
From: The Wild West... and Oz
Translation:
A helicopter crash took place at the airport in Granges Wednesday afternoon, injuring the pilot. Our colleagues of TeleBielingue received a video of a viewer who has filmed, to discover on our site.
As he landed normally at the airport in Granges, Wednesday at 1655, a helicopter Helisuisse suddenly fell on its side, in a spectacular explosion caused by the blades hit the ground. The pilot was uninjured in the accident. He was able to leave their own aircraft. The helicopter was completely destroyed.
A witness was on the scene: Christophe Röthlisberger, who has filmed. He sent his video to TeleBielingue, which we make available. A show will be broadcast on TeleBielingue à ce sujet, Thursday evening.
The Solothurn cantonal police opened an investigation jointly with the Federal Bureau of Accident Investigation Aviation (AAIB), to know the exact causes of the accident.
Joined: Oct 2003
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From: n/a
OK so putting aside - no speculation blah blah....help me out here - low time heli pilot on way to ppl (h)
The inital landing on the dolly goes a bit wrong, looks like one skid is off the edge, or maybe the dolly collapses partially...... however looks like he then tries to lift again and gets what...skid stuck on/under the dolly leading to a sort of dynamic rollover?
The inital landing on the dolly goes a bit wrong, looks like one skid is off the edge, or maybe the dolly collapses partially...... however looks like he then tries to lift again and gets what...skid stuck on/under the dolly leading to a sort of dynamic rollover?
Joined: Dec 2000
Posts: 1,669
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From: uk
FILCI, there's always one tw@t on PPRuNe isn't there? Incompetent? Ever heard of accidents? but incompetence? Hope you never prove your incompetence to a wide audience! The guys here on PPRuNe will take great pleasure picking it apart no doubt.
Joined: Nov 2001
Posts: 584
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From: 1000ft above you, giving you the bird!
hindsight is a wonderful thing..... but i think quite a few of us have been close in a number of different ways - but the mindset has a major implication of this scenario......... rabbit runs out in front of you driving with oncoming trafic the other way... do you swerve and total the car and maybe the other plus people or do you run the rabbit over and live another day....
landing on a bogey..... - it slides do you leave the collective fully lowered and let it fall off with a quick shut down - or do you lift to recover and try to reposition....caught me out in ireland in 90....... do not envy this chap..... just real bad luck...... cant see it being anything other than that.....
crap day in the office........
landing on a bogey..... - it slides do you leave the collective fully lowered and let it fall off with a quick shut down - or do you lift to recover and try to reposition....caught me out in ireland in 90....... do not envy this chap..... just real bad luck...... cant see it being anything other than that.....
crap day in the office........
Joined: Apr 2007
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From: Center of the Universe
This kind of accident is entirely preventable. Simple: dont land on a dolly. This is a dark ages way to move a helicopter on the ground and these claim helicopters with great regularity (and sometimes the life of a pilot and/or bystander). There are modern devices for moving helicopters which entirely eliminate the risks of landing on a dolly. One such device is the Heliporter made by ParAvion. I have been using one of these for some time and in addition to working flawlessly, it is a mechanical work of art I would be proud to display in my living room. Some may argue that these are "expensive" but at a price of about 0.3% of the price of a new Squirrel, it doesnt seem expensive at all.
All of the above IMHO, of course. Blast away!
EN48
All of the above IMHO, of course. Blast away!
EN48
Last edited by EN48; 21st June 2008 at 01:09.
Joined: Dec 2005
Posts: 82
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From: NZ Southern Alps
We land Squirrels on trolleys everyday. One of our trolleys is only marginally larger than the skid print of the aircraft.
First couple of times I did it I was nervous as hell. After a while you get used to it, but don't ever get complacent . . .
Bottom line? Take your time, and if in doubt . . . chicken out.
GP
First couple of times I did it I was nervous as hell. After a while you get used to it, but don't ever get complacent . . .
Bottom line? Take your time, and if in doubt . . . chicken out.
GP
Fleet Manager
Joined: Aug 2006
Aviation Qualifications: CPL
Posts: 7,081
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From: Ontario, Canada
My first number of dolly landings were not too pretty either, and that was the 300CB. I found the S300 to be very stable in the hover compared to the AS350, which I found extra challenging to hover neatly. (Okay, my hovering of an AS350 would never had been called neat, in the total of 3 hours I have in one!)
My untrained eye thinks it sees ground resonance develope there, and I can certainly appreciate how that could wiggle the helicopter off the side of the dolly, beyond the control of the pilot. I had to test an AS350 for ground resonance, and it scared the heck out of me! What can I learn for this? Dollys seem to be unavoidable....
FILCI, are you the most compotent pilot who ever flew? I've heard tales of him, but never believed he actually existed!
My untrained eye thinks it sees ground resonance develope there, and I can certainly appreciate how that could wiggle the helicopter off the side of the dolly, beyond the control of the pilot. I had to test an AS350 for ground resonance, and it scared the heck out of me! What can I learn for this? Dollys seem to be unavoidable....
FILCI, are you the most compotent pilot who ever flew? I've heard tales of him, but never believed he actually existed!
Joined: Dec 2006
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From: Not here
This kind of accident is entirely preventable. Simple: dont land on a dolly.
Avoid imitations
Joined: Nov 2000
Aviation Qualifications: ATPL
Posts: 15,110
Likes: 1,083
From: Wandering the FIR and cyberspace often at highly unsociable times
We used to land "our" police 355N on a powered dolly. Horrible idea. The pilot couldn't actually see the dolly at all when the aircraft was correctly positioned over it and it was especially difficult at night. I used to dread the thought of dropping a skid off the side, like this poor pilot did.
We used to complain about it and they eventually bought a "chopper spotter" so the pilot could land on the ground, like he was always supposed to do. The lifting device could then be driven under the skids, on its electric motor.
One night, at the end of the shift the dolly's engine drive failed halfway into the hangar and the aircraft couldn't be secured so the police had to guard it all night. They thought about a replacement moving device much more seriously after that.
Proper helicopters have wheels, anyway.
We used to complain about it and they eventually bought a "chopper spotter" so the pilot could land on the ground, like he was always supposed to do. The lifting device could then be driven under the skids, on its electric motor.
One night, at the end of the shift the dolly's engine drive failed halfway into the hangar and the aircraft couldn't be secured so the police had to guard it all night. They thought about a replacement moving device much more seriously after that.
Proper helicopters have wheels, anyway.