Accident in Namibia, SH Ventus 2cxm

It would be interesting to know the CG location for all of these.

At 16:34 01 February 2016, Jonathan St. Cloud wrote:
Nimbus 4DM Accident history (loss of control).

- 27/07/1997 Fuentemilanos Spain, 2 fatalities
- 13/07/1999 Minden USA, 2 fatalities
- 13/07/200 Ocana Spain, 1 fatality (4DT)
- 19/11/2006 Zapala Argentina, 2 fatalities
- 22/11/2007 Gariep Dam South Africa, 2 fatalities
- 01/08/2009 Vinon France, 2 fatalities
- 11/01 2016 Bitterwasser Namibia

anyone know the accident history of the ASH-25? I have about 200 hours in
Nimbus 4D and 4DM. Have about 500 hours in a Nimbus 4t that I did spin
and
the single seat nimbus is a beautiful flyer.


Loss of control is a wide category. I know one of the above is a winch
launch gone sour. Not much to do with spinning charachteristics...

One wonders if the inclusion of a tail parachute would have been a better option on these slippery open class ships with tricky recovery envelopes?
Accidental or unreliable deployment issues aside, a drag chute could probably be used to recover from a spin or spiral dive without exceeding Vne.

For example the Nimbus 2 has a terminal velocity in a vertical dive of 200 to 220 km/h (108 to 119 knots) with the tail chute deployed, air brakes and landing gear extended. So assuming one popped the chute within a couple of seconds (giving extra time to extend air brakes and lower the landing gear) the glider would be able to exit the spin/spiral vertically and then gently pull out of the dive without breaking anything in the process.

Is this a crazy idea or feasible?

On Thursday, February 4, 2016 at 3:32:51 AM UTC-5, Surge wrote:
One wonders if the inclusion of a tail parachute would have been a better option on these slippery open class ships with tricky recovery envelopes?

You would need a reliable means to jettison the chute at the right moment.

On Thursday, February 4, 2016 at 10:32:26 AM UTC-5, son_of_flubber wrote:
On Thursday, February 4, 2016 at 3:32:51 AM UTC-5, Surge wrote:
One wonders if the inclusion of a tail parachute would have been a better option on these slippery open class ships with tricky recovery envelopes?

You would need a reliable means to jettison the chute at the right moment.

You mean like the other gliders that have tail chutes?
UH

At 15:32 04 February 2016, son_of_flubber wrote:
On Thursday, February 4, 2016 at 3:32:51 AM UTC-5, Surge wrote:
One wonders if the inclusion of a tail parachute would have been a
better
option on these slippery open class ships with tricky recovery envelopes?

You would need a reliable means to jettison the chute at the right
moment.


Attach the rear seat pilot to the boom with a length of cable. He can then
exit and deploy his chute thereby stabilising the spin and when the
aircraft is fully recovered disconnect and float down to earth. Job done!

On Thursday, February 4, 2016 at 6:32:26 PM UTC+3, son_of_flubber wrote:
On Thursday, February 4, 2016 at 3:32:51 AM UTC-5, Surge wrote:
One wonders if the inclusion of a tail parachute would have been a better option on these slippery open class ships with tricky recovery envelopes?

You would need a reliable means to jettison the chute at the right moment.

Like the blue knob low on the right hand cockpit wall in my glider here, you mean?

http://hoult.org/bruce/gliding/sasha/sasha-Images/3.jpg.

First stop deploys the chute. Zig right and all the way forward to jettison it.

Not the same glider, but looks like the same model:

https://farm8.staticflickr.com/7261/...8173ceca_b.jpg

How does that work? Do you push the knob forward to the detent to
deploy the chute and then outboard and forward again to jettison? What
type of glider is that?

On 2/4/2016 9:02 AM, Bruce Hoult wrote:
On Thursday, February 4, 2016 at 6:32:26 PM UTC+3, son_of_flubber wrote:
On Thursday, February 4, 2016 at 3:32:51 AM UTC-5, Surge wrote:
One wonders if the inclusion of a tail parachute would have been a better option on these slippery open class ships with tricky recovery envelopes?
You would need a reliable means to jettison the chute at the right moment.
Like the blue knob low on the right hand cockpit wall in my glider here, you mean?

http://hoult.org/bruce/gliding/sasha/sasha-Images/3.jpg.

First stop deploys the chute. Zig right and all the way forward to jettison it.

Not the same glider, but looks like the same model:

https://farm8.staticflickr.com/7261/...8173ceca_b.jpg

--
Dan, 5J

At 16:12 04 February 2016, Dan Marotta wrote:
How does that work? Do you push the knob forward to the detent to
deploy the chute and then outboard and forward again to jettison?
What
type of glider is that?

Looks like a Janus. If you are clumsy it is very easy to past the first
detent and all the way forward. The parachute then falls off in it's
container and is very difficult to find :-)

On Thursday, February 4, 2016 at 11:02:14 AM UTC-5, Bruce Hoult wrote:
On Thursday, February 4, 2016 at 6:32:26 PM UTC+3, son_of_flubber wrote:
On Thursday, February 4, 2016 at 3:32:51 AM UTC-5, Surge wrote:
One wonders if the inclusion of a tail parachute would have been a better option on these slippery open class ships with tricky recovery envelopes?

You would need a reliable means to jettison the chute at the right moment.

Like the blue knob low on the right hand cockpit wall in my glider here, you mean?

http://hoult.org/bruce/gliding/sasha/sasha-Images/3.jpg.

First stop deploys the chute. Zig right and all the way forward to jettison it.

I was aware of the chute used for landing on Libelle. So you think a similar chute mechanism could be used during spin/spiral dive recovery.