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-   -   Guimbal Cabri G2 (https://www.pprune.org/rotorheads/296022-guimbal-cabri-g2.html)

CentralS 4th Apr 2010 14:51

Friedrichshafen
 
AERO 2010 will take place from the 8 to the 11 of april : AERO April 8-11, 2010

4 Cabri will land wednesday in the morning at Friedrichshafen airport.
3 of them with different finish will be on display in halls A3 and A6.

Hélicoptères Guimbal has launched his website : Hélicoptères Guimbal - accueil .

R44-pilot 6th Apr 2010 08:30

Anyone know whos getting the first one in the UK? i.e to have a go on, not a private owner. And when perhaps?

leemind 6th Apr 2010 16:01

UK School
 
and if you are in the south of England, you've got yourself your first customer!

skadi 20th Apr 2010 06:37

One of the first ones in Germany crashed yesterday, only minor injuries of both on board:

Helikopter am Flughafen Karlsruhe-Baden abgestürzt

http://www.ka-news.de/storage/scl/ho...5q75v54624.jpg

http://www.ka-news.de/storage/scl/ho...5q75v55497.jpg

http://www.ka-news.de/storage/scl/ho...5q75v25518.jpg

skadi

Spunk 20th Apr 2010 06:53

Good Morning Skadi,

do you ever sleep. Everytime I want to post some news you've already done it .:ok:

Too bad to see that this master piece of helicopter science is not infallible.

topendtorque 20th Apr 2010 08:51

That is a great pity, the only thing that I could translate in the article was the Euro 300K bit.

Good job it didn't hit the concrete or it would really have cost a bit.

A great photo of the turned inside out skid gear. Does it need stronger crosstubes and / or attach points or was it really tested beyond the proper drop test limit?

Nice to see that it is still upright.

Was it an auto practice perchance??????:{

cheers tet

9Aplus 20th Apr 2010 09:56

Unofficially


We are also so sorry for this accident. The crew called us this morning,
and the main point for us is that everybody is fine, and back to work
today. They told it was a pilot error, and admitted they were practicing
a risky failure simulation they were not trained for. And they are
already thinking to replace the Cabri by a new one.
Safety proven :} life is going on.... my order still stands :ok:

bellsux 20th Apr 2010 13:33

ridiculously long words translated....


Helicopter crashed at Karlsruhe-Baden airport.

A helicopter crashed on the grounds at Karlsruhe-Baden airport on Monday afternoon, injuring the two occupants, fortunately only slightly.

According to initial findings from the police, the two men had begun a test flight within the airport area in a Guimbal G2 Cabri helicopter. For reasons yet unknown the aircraft fell from a height of from about two to three meters. The helicopter was severely damaged.

The first estimate of the damage amounts to about 300,000 Euros. The Federal Bureau of Aircraft Accidents Investigation in Braunschweig has been asked to investigate the cause of the accident.

cpt 20th Apr 2010 14:18

Bruno Guimbal, in another forum, explains that the pilots were practicing tail rotor failures....

CentralS 21st Apr 2010 22:20

Official information from Hélicoptères Guimbal :

Hello,
we confirm, alas! these very sad news.
However, it was partly exaggerated, as often : the two pilots are uninjured, and were back at work in perfect shape as soon as a few hours after the accident, when we spoke to them. At least some good news !
As far as we have heard from them, and this is definitely unofficial, they were practicing tail rotor failure when they lost the aircraft control, and stroke the ground at some significant speed - backwards.

They very honestly recognise a pilot error. They are very satisfied with the aircraft behaviour. Its fuselage and powerplant seem to be intact.


Both occupants had very low time on the Cabri type.

This aircraft had just, a few days before, joined its operational base in Germany, following a four month intensive evaluation period by all Eurocopter pilots, in France.
We have numerous and only excellent feedback from this operational evaluation, that was recently beeing concluded.

We only can repeat our message, initiated by the program's test pilot : " don't do anything with the Cabri that you wouldn't do with another light helicopter, and you'll enjoy a tremendous improvement in safety".


We all wish that this accident remains a bad baptism of fire.
Fly safe!

Bruno Guimbal
Helicopteres Guimbal president


waragee 21st Apr 2010 23:18

Good news the drivers are ok, unfortunate for Bruno's new type but the cabin looks to have withstood the bingle pretty well. Interesting that they were going backwards at the time, maybe the practice emergency had been let develop too far but a reasonable outcome in real life. I would like to hear a bit more about the control authority of the fenestrom.

GroundhogDK 22nd Apr 2010 20:08

Does anyone know the registration and operator?

skadi 23rd Apr 2010 06:08

D-HETA s/n 1007 Motorflug Baden-Baden

CentralS 23rd Apr 2010 19:45


D-HETA s/n 1007 Motorflug Baden-Baden
Motorflug is an 100% owned subsidiary of Eurocopter.
Both on board when this sad event happened are Motorflug employees.

Agaricus bisporus 24th Apr 2010 00:51


We all wish that this accident remains a bad baptism of fire.
Oh! The dangers of messing with a language you don't understand!

Bruno, your statement as quoted above says that your product was tested under operational conditions and was found "bad"ly at fault.

Hoping their insurance company doesn't cotton on to this!

delta3 24th Apr 2010 10:12

Tail rotor failures
 
Mod: Not intended to blame pilots, quite the contrary, so mod you may remove my speculation.

I know from personal experience that the Motorflug guys are good in tail rotor failure training.

Tail rotor failures require quite some aero dynamic performance of the tail fin, depending on the settings of tail rotor power. It appears to me in the Cabri design that the effective surface is (in relative terms) smaller than say R44, B206. So we could have a sudden stall of the tail fin, combined with low inertia, that make the maneuver quite a bit more tricky.

m2c
d3

topendtorque 24th Apr 2010 10:30

Just becoming a bit confused here, but then I saw this really confusing bit.


Tail rotor failures require quite some aero dynamic performance of the tail fin,
Was it a practice T/R failure from the hover;

1) where the drivers started getting disorientated and then moving backwards before touchdown, or

2) was it simulated in forward flight and it developed into a T/R at hover after the forward A/S had washed off to come back to number 1, or

3) do they fly backwards and then simulate a T/R failure to drop to the ground before rotating into the forward A/S configuration?

In any of these events how can the quote above have significance when all airspeed is washed off, or nearly so?

delta3 24th Apr 2010 10:41

Topendtorque

Perhaps along these lines....

Stuck tail rotor at 90% or 110% required for hover,
run on approach using side slip to cover for the fenestron performance gap and replacing it with tail fin power.

If well performed using even using a crosswind component, to avoid lateral motion during run on.

Sudden stall, making the heli spin...

d3

topendtorque 25th Apr 2010 10:49

Thanks D3 and understand, just up aways we saw; -


don't do anything with the Cabri that you wouldn't do with another light helicopter, and you'll enjoy a tremendous improvement in safety".


WRT the PFM what does it say about landing after a T/R drive failure in forward flight?

Hopefully there is nothing spooky in that prescribed procedure.
cheers tet

delta3 25th Apr 2010 10:59

PFM
 
Don't know about the PFM, but at the current stage of experience (+- 10 ships) things may still need to be better understood at the limits of the envelop.

Personally I' am impressed with the body integrity, one of main design goals of Bruno, which appears to be achieved in real life imho.

d3


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