Kawa rough landing?

There is a comment from GP gliders on their facebook page that Mr Kawa hurt his back as a result of the impact (hopefully not seriously) and also that the dynafoam cushion had been removed so that he could fit into the smaller sized cockpit of the two GP glider designs. Irrespective of whether the dynafoam would have made a difference in this particular incident it is a reminder of the importance of impact protection seat cushions and raises a question about flying a glider with a cockpit so small that the cushion needs to be removed for the pilot to fit into it.

http://www.sebastiankawa.pl/13060/o-...bGJ8ugxxXHZS58

Google translate:
"During the last training flight they locked Sebastian in a narrow 30-kilometer valley without landing spots. The possibility of escape was to be provided by an efficient electric drive system. "

There you go. Glad he did not hurt himself more seriously.

Always great to learn from the wisdom of the GOAT:

“Yeah, but it was a landing pad in Bobulandii. Here, unfortunately, on the lower part of the field, there was a damselfish which, at higher speed, knocked me when you make a kangaroo on a flat glider, it flies horizontally and lands twice�

😂😂😂

On Sunday, September 8, 2019 at 11:20:53 AM UTC-6, krasw wrote:
http://www.sebastiankawa.pl/13060/o-...bGJ8ugxxXHZS58

Google translate:
"During the last training flight they locked Sebastian in a narrow 30-kilometer valley without landing spots. The possibility of escape was to be provided by an efficient electric drive system. "

There you go. Glad he did not hurt himself more seriously.

Those pictures show a nice looking field. I'm sure he's landed in fields like that many times. Bumps and rocks are always a risk when landing in a field.

On Sunday, September 8, 2019 at 6:52:44 PM UTC-7, Richard DalCanto wrote:
On Sunday, September 8, 2019 at 11:20:53 AM UTC-6, krasw wrote:
http://www.sebastiankawa.pl/13060/o-...bGJ8ugxxXHZS58

Google translate:
"During the last training flight they locked Sebastian in a narrow 30-kilometer valley without landing spots. The possibility of escape was to be provided by an efficient electric drive system. "

There you go. Glad he did not hurt himself more seriously.

Those pictures show a nice looking field. I'm sure he's landed in fields like that many times. Bumps and rocks are always a risk when landing in a field.

A bump or rock can break your spine - there is no such thing as a "nice looking field," just some that are less desirable than others.

2G wrote on 9/8/2019 10:17 PM:
On Sunday, September 8, 2019 at 6:52:44 PM UTC-7, Richard DalCanto wrote:
On Sunday, September 8, 2019 at 11:20:53 AM UTC-6, krasw wrote:

Those pictures show a nice looking field. I'm sure he's landed in fields like that many times. Bumps and rocks are always a risk when landing in a field.

A bump or rock can break your spine - there is no such thing as a "nice looking field," just some that are less desirable than others.

I'll point out the risk from a bump or rock varies with the glider you use. My
(26E) glider and your glider (31Mi) have tall, massive gears designed to provide
significant protection from bumps, rocks, and even badly botched landings on
pavement. And, not just from the height of the gear, but it's shock absorption and
progressive collapse during the collision with the bump or rock. So, I have no
fear of bumps or rocks in an off-airport landing.

I do fear ditches and boulders (basically, anything bigger than the tire), but
even then, the gear will reduce the damage I would suffer compared to my earlier
gliders that were designed before crash protection became a much higher priority.

--
Eric Greenwell - Washington State, USA (change ".netto" to ".us" to email me)

On Monday, September 9, 2019 at 9:03:48 AM UTC-7, Eric Greenwell wrote:
2G wrote on 9/8/2019 10:17 PM:
On Sunday, September 8, 2019 at 6:52:44 PM UTC-7, Richard DalCanto wrote:
On Sunday, September 8, 2019 at 11:20:53 AM UTC-6, krasw wrote:

Those pictures show a nice looking field. I'm sure he's landed in fields like that many times. Bumps and rocks are always a risk when landing in a field.

A bump or rock can break your spine - there is no such thing as a "nice looking field," just some that are less desirable than others.

I'll point out the risk from a bump or rock varies with the glider you use. My
(26E) glider and your glider (31Mi) have tall, massive gears designed to provide
significant protection from bumps, rocks, and even badly botched landings on
pavement. And, not just from the height of the gear, but it's shock absorption and
progressive collapse during the collision with the bump or rock. So, I have no
fear of bumps or rocks in an off-airport landing.

I do fear ditches and boulders (basically, anything bigger than the tire), but
even then, the gear will reduce the damage I would suffer compared to my earlier
gliders that were designed before crash protection became a much higher priority.

--
Eric Greenwell - Washington State, USA (change ".netto" to ".us" to email me)

Clearly some gliders are much better designed and built than others, but fields that you haven't walked can be a literal mine field of obstructions, particularly if the grass is higher and hides these hazards.

Tom

On Monday, 9 September 2019 04:52:44 UTC+3, Richard DalCanto wrote:
On Sunday, September 8, 2019 at 11:20:53 AM UTC-6, krasw wrote:
http://www.sebastiankawa.pl/13060/o-...bGJ8ugxxXHZS58

Google translate:
"During the last training flight they locked Sebastian in a narrow 30-kilometer valley without landing spots. The possibility of escape was to be provided by an efficient electric drive system. "

There you go. Glad he did not hurt himself more seriously.

Those pictures show a nice looking field. I'm sure he's landed in fields like that many times. Bumps and rocks are always a risk when landing in a field.

To my eyes it looks like a mountain slope, described unlandable (obviously, with hindsight).

Reading a lot of fb comments it's surprising how many talk about electric engine unreliability as cause. Have we not learned anything during last 30-40 years of playing with sustainers and selflauncher? Engine start down low is a PLEASANT SURPRISE, you plan for safe outlanding, always. There has been FES selflauncher accident because powerplant failure and one really close call. They aren't any better.

At 08:05 10 September 2019, krasw wrote:
There has been FES selflauncher accident because powerplant failure and
one
really close call. They aren't any better.


Can you provide links to these incidents?

I would expect them to ba at least 1 order of magnitude better than the
traditional turbo.

Why?