Why did this helicopter crash ?

Hi everybody,

This week I have uploaded a video of a helicopter crash on my website
(www.dappa.nl/crash.htm). Does anyone have a clue about the failure that
caused this crash? It is definately not an engine failure or a tail rotor
failure, but it still looks like a spectacular decend.

For the sensitive viewers: Nobody got hurt, but the helo is a complete write
off.

Iwan Bogels
DAPPA

I have no idea but looks like somebody was smiling down on them??
"Iwan Bogels" wrote in message
...
Hi everybody,

This week I have uploaded a video of a helicopter crash on my website
(www.dappa.nl/crash.htm). Does anyone have a clue about the failure that
caused this crash? It is definately not an engine failure or a tail rotor
failure, but it still looks like a spectacular decend.

For the sensitive viewers: Nobody got hurt, but the helo is a complete
write
off.

Iwan Bogels
DAPPA

Maybe a hydraulic failure (lost the pressure) ?

Ove
"Iwan Bogels" wrote in message
...
Hi everybody,

This week I have uploaded a video of a helicopter crash on my website
(www.dappa.nl/crash.htm). Does anyone have a clue about the failure that
caused this crash? It is definately not an engine failure or a tail rotor
failure, but it still looks like a spectacular decend.

For the sensitive viewers: Nobody got hurt, but the helo is a complete
write
off.

Iwan Bogels
DAPPA

"Ove" wrote in message ...
Maybe a hydraulic failure (lost the pressure) ?

Ove
"Iwan Bogels" wrote in message
...
Hi everybody,

This week I have uploaded a video of a helicopter crash on my website
(www.dappa.nl/crash.htm). Does anyone have a clue about the failure that
caused this crash? It is definately not an engine failure or a tail rotor
failure, but it still looks like a spectacular decend.

For the sensitive viewers: Nobody got hurt, but the helo is a complete
write
off.

Iwan Bogels
DAPPA



The early reports are loss of tail rotor effectiveness. Look at the
video again. He starts an auto (obviously) and once near the bulidings
he pulls collective and has no tail rotor thrust to correct problem.
Read the NTSB prelims.

"Ove" wrote in message ...
Maybe a hydraulic failure (lost the pressure) ?

Ove
"Iwan Bogels" wrote in message
...
Hi everybody,

This week I have uploaded a video of a helicopter crash on my website
(www.dappa.nl/crash.htm). Does anyone have a clue about the failure that
caused this crash? It is definately not an engine failure or a tail rotor
failure, but it still looks like a spectacular decend.

For the sensitive viewers: Nobody got hurt, but the helo is a complete
write
off.

Iwan Bogels
DAPPA



Sorry for the multiple posts here. But on my first reply I meant to
say after he began the auto he had to pull collective when he neared
the buildings rooftops and he obviously didn't have any tail rotor
thrust to manage that collective pull. Notice how the heli yaws when
he arrests his descent. Read the initial NTSB reports.

ummn Andy,
Correct me if I'm wronge but if the helicopter is in an auto then the
rotor is disengaged from the powere source, hence no tourqe to induce
the yaw when the collective is pulled.
all the best
Sean

helicopterandy wrote:
"Ove" wrote in message ...

Maybe a hydraulic failure (lost the pressure) ?

Ove
"Iwan Bogels" wrote in message
...

Hi everybody,

This week I have uploaded a video of a helicopter crash on my website
(www.dappa.nl/crash.htm). Does anyone have a clue about the failure that
caused this crash? It is definately not an engine failure or a tail rotor
failure, but it still looks like a spectacular decend.

For the sensitive viewers: Nobody got hurt, but the helo is a complete

write

off.

Iwan Bogels
DAPPA




Sorry for the multiple posts here. But on my first reply I meant to
say after he began the auto he had to pull collective when he neared
the buildings rooftops and he obviously didn't have any tail rotor
thrust to manage that collective pull. Notice how the heli yaws when
he arrests his descent. Read the initial NTSB reports.

sorry lack of coffee after a long shift.

wronge = wrong
powere = power

Sean Trost wrote:

ummn Andy,
Correct me if I'm wronge but if the helicopter is in an auto then the
rotor is disengaged from the powere source, hence no tourqe to induce
the yaw when the collective is pulled.
all the best
Sean

helicopterandy wrote:

"Ove" wrote in message
...

Maybe a hydraulic failure (lost the pressure) ?

Ove
"Iwan Bogels" wrote in message
...

Hi everybody,

This week I have uploaded a video of a helicopter crash on my website
(www.dappa.nl/crash.htm). Does anyone have a clue about the failure
that
caused this crash? It is definately not an engine failure or a tail
rotor
failure, but it still looks like a spectacular decend.

For the sensitive viewers: Nobody got hurt, but the helo is a complete


write

off.

Iwan Bogels
DAPPA




Sorry for the multiple posts here. But on my first reply I meant to
say after he began the auto he had to pull collective when he neared
the buildings rooftops and he obviously didn't have any tail rotor
thrust to manage that collective pull. Notice how the heli yaws when
he arrests his descent. Read the initial NTSB reports.

SEAN,
I DIDN'T MEAN HE ROLLED OFF THE POWER, ONLY THAT HE LOWERED COLLECTIVE
TO FULL DOWN TO COUNTER THE LOSS OF TAIL ROTOR. BUT HE MAY HAVE ROLLED
OFF POWER (WHO KNOWS) BUT THEN HE HAD TO ROLL POWER BACK ON BEFORE HE
PULLED IN POWER(COLLECTIVE) AGAIN TO ARREST HIS DESCENT AS HE NEARED
THE ROOFTOPS. THEN HE GOT THE SEVERE YAW AGAIN. IF HE DIDN'T HAVE THE
POWER BACK ON WHEN HE PULLED COLLECTIVE THE BOTTOM WOULD HAVE FELL OUT
OF THE SHIP VERY QUICKLY AND HE WOULD HAVE PUT THAT SHIP THROUGH THOSE
ROOFS INSTEAD OF ON TOP OF THEM.
REGARDS,
MARK (ANDY IS MY MIDDLE NAME)




Sean Trost wrote:

ummn Andy,
Correct me if I'm wronge but if the helicopter is in an auto then the
rotor is disengaged from the powere source, hence no tourqe to induce
the yaw when the collective is pulled.
all the best
Sean

helicopterandy wrote:

"Ove" wrote in message
...

Maybe a hydraulic failure (lost the pressure) ?

Ove
"Iwan Bogels" wrote in message
...

Hi everybody,

This week I have uploaded a video of a helicopter crash on my website
(www.dappa.nl/crash.htm). Does anyone have a clue about the failure
that
caused this crash? It is definately not an engine failure or a tail
rotor
failure, but it still looks like a spectacular decend.

For the sensitive viewers: Nobody got hurt, but the helo is a complete


write

off.

Iwan Bogels
DAPPA




Sorry for the multiple posts here. But on my first reply I meant to
say after he began the auto he had to pull collective when he neared
the buildings rooftops and he obviously didn't have any tail rotor
thrust to manage that collective pull. Notice how the heli yaws when
he arrests his descent. Read the initial NTSB reports.

sorry lack of coffee after a long shift.

wronge = wrong
powere = power

Sean Trost wrote:

TO THE GROUP..... Regarding Iwan Bogels"


Michael wrote:

As it is, you have a freak show and little else.

The above quoted comments was made today by another poster,
in another newsgroup.

For the last number of days Iwan Bogels"
has crossposted the same or similar message into a variety of
groups like this inviting you to visit his site, and view his crash
videos, so that you may become educated, and learn from the
mistakes of others.

In the piloting newsgroups he has been trying to justify his freakshow
with a number of the regulars who surprising enough for the most part
didn't see all that much wrong with it.

For the groups information.

A few years ago when the reality TV programs started to hit the air,
there was someone named Jeremy Peevers ( I believe ) and others
who were posting to the aviation newsgroups looking for footage
similar to what Mr. Bogels is showing on his website.

In the rec.aviation.homebuilt, and rec.aviation.rotorcraft groups
(where I generally lurk) they were basically told to **** off by the
majority or regulars who were offended that someone was looking for
death and destruction videos so they could be shown of national TV for
a profit under the guise of entertainment.

I personally asked on numerous times (in the group) if Real TV would be
interested in clear, well lit, sharply focused footage, of a young girl
being decapitated by a helicopter rotor and how much they would be
willing to pay.

That usually shut them up.

They didn't want videos of people out actually enjoying a day at the
airport, with shots of airplanes taking off, flying and landing.

They wanted videos of total destruction, fireballs, cartwheels,
well ........ you get the picture.

The other day Iwan Bogels" crossposted
his message into this set of newsgroups looking for hits to his site.

alt.disasters.aviation, fr.rec.aviation, rec.aviation.military,
rec.aviation.piloting, rec.aviation.soaring

Yesterday he decided to crosspost his message into this set of
newsgroups.

alt.aviation.safety, aus.aviation, rec.aviation.homebuilt,
rec.aviation.ifr, rec.aviation.student

And today he is crossposting to this set of newsgroups

rec.aviation.rotorcraft, rec.aviation.student, rec.models.rc.helicopter

God knows where he will be tomorrow.

I'm certainly not telling anybody what they should or shouldn't look at
on the Web but let's not delude ourselves into believing the pitch from
Mr. Bogels this his site is for educational purposes so that pilots,
etc., can learn from the mistakes of others by watching these videos.

As another poster has stated..... And I am quoting him below.

As it is, you have a freak show and little else.

Mr. Bogel...... In my humble opinion the above quoted statement is
hitting the nail squarly on the head and you can dress your site up any
way you want, and explain anyway you want.... but in my opinion you
are promoting a freak show site and nothing else.

*******************************************

To the Rotorcraft group.

When Mr. Bogel first started crossposting his message he was offering
many video clips including crashes of commercial planes, military
jets., civilian aircraft etc. CORRECT ME IF I AM WRONG.

Due to the heavy traffic he went over his bandwidth allocation so now
he is currently just offering one clip.

Since he is in a helicopter newsgroup today, he is offering a
helicopter crash video.

From his website.......

If you have additional material for us, or can point us in the right direction
where to find it, please let us know at

You will note the interesting name for his e-mail addy.

To the group let me repeat myself------ As I have clearly stated
above, I am not telling anyone what they should or shouldn't look
at, or how anyone should act or behave..... The comments above
are strictly my own and the information posted is for the groups
general information.

You can all make up your own mind and voice your own opinions
as you wish about Mr. Bogel and his website.