Looking for pictures of motorglider failures

On Sunday, December 8, 2019 at 11:46:36 AM UTC-5, kinsell wrote:
No one has mentioned jets? They can be unreliable to get started, and
there's been uncontained blade failures. Even had the engine depart the
A/C.

Interesting, I've heard of numerous failures to start and failure to climb,
but not uncontained blade failures or engine departing AC...

HERE https://www.youtube.com/watch?v=Puia_yQxir8&feature=youtu.be is
an example of a jet sustainer failure to start.Â* Good glide path
control, but I thought he may have waited a bit longer than required
before dumping his ballast.

On 12/8/2019 9:59 AM, Dave Nadler wrote:
On Sunday, December 8, 2019 at 11:46:36 AM UTC-5, kinsell wrote:
No one has mentioned jets? They can be unreliable to get started, and
there's been uncontained blade failures. Even had the engine depart the
A/C.
Interesting, I've heard of numerous failures to start and failure to climb,
but not uncontained blade failures or engine departing AC...

--
Dan, 5J

Dan Marotta wrote on 12/8/2019 9:38 AM:
HERE https://www.youtube.com/watch?v=Puia_yQxir8&feature=youtu.be is an example
of a jet sustainer failure to start.* Good glide path control, but I thought he
may have waited a bit longer than required before dumping his ballast.

On 12/8/2019 9:59 AM, Dave Nadler wrote:
On Sunday, December 8, 2019 at 11:46:36 AM UTC-5, kinsell wrote:
No one has mentioned jets? They can be unreliable to get started, and
there's been uncontained blade failures. Even had the engine depart the
A/C.
Interesting, I've heard of numerous failures to start and failure to climb,
but not uncontained blade failures or engine departing AC...

I'm pretty sure that qualifies as a self-launcher!


--
Eric Greenwell - Washington State, USA (change ".netto" to ".us" to email me)
- "A Guide to Self-Launching Sailplane Operation"
https://sites.google.com/site/motorg...ad-the-guide-1

Motor in a sailplane = a complicated abomination, ......

An efficient light power plane utilizing sailplane aerodynamics = beautiful engineering.,,,,

wrote on 12/8/2019 10:01 AM:
Motor in a sailplane = a complicated abomination, ......

An efficient light power plane utilizing sailplane aerodynamics = beautiful engineering.,,,,

Look at an FES sailplane - simple. Much simpler than a towplane, and much easier
to schedule when you need a launch. I was part owner of a towplane for years, and
it caused me more grief each year than the self-launcher I now own. And then there
are the avoided retrieves - simple and priceless!

Are we really having this conversation after all these years, with 80% of the
gliders going out the factory door with an engine?

--
Eric Greenwell - Washington State, USA (change ".netto" to ".us" to email me)
- "A Guide to Self-Launching Sailplane Operation"
https://sites.google.com/site/motorg...ad-the-guide-1

At 18:47 08 December 2019, Eric Greenwell wrote:
Some where there is a photo of a propellor blade sticking out of a
duo discus wing.It was part of the AD sent out after a hub failure left
the blades coming off.



wrote on 12/8/2019 10:01 AM:
Motor in a sailplane = a complicated abomination, ......

An efficient light power plane utilizing sailplane aerodynamics =
beautiful engineering.,,,,

Look at an FES sailplane - simple. Much simpler than a towplane,
and much
easier
to schedule when you need a launch. I was part owner of a
towplane for
years, and
it caused me more grief each year than the self-launcher I now
own. And
then there
are the avoided retrieves - simple and priceless!

Are we really having this conversation after all these years, with
80% of
the
gliders going out the factory door with an engine?

--
Eric Greenwell - Washington State, USA (change ".netto" to ".us" to
email
me)
- "A Guide to Self-Launching Sailplane Operation"

https://sites.google.com/site/motorg...ions/download-
the-guide-1

\J. May:
Some where there is a photo of a propellor blade sticking out of a
duo discus wing.It was part of the AD sent out after a hub failure left
the blades coming off.

I think this may be what you're referring to?
https://assets.publishing.service.go...SAXT_05-16.pdf

On Sunday, December 8, 2019 at 2:15:07 PM UTC-5, Jonathon May wrote:
At 18:47 08 December 2019, Eric Greenwell wrote:
Some where there is a photo of a propellor blade sticking out of a
duo discus wing.It was part of the AD sent out after a hub failure left
the blades coming off.

IIRC, more recent is the blade sticking out of a DG-1000 wing.
Different style hub (conventional 2-blade prop).
Anyone have that picture?

On Sunday, December 8, 2019 at 1:47:26 PM UTC-5, Eric Greenwell wrote:
Are we really having this conversation after all these years,
with 80% of the gliders going out the factory door with an engine?

That is PRECISELY why we're having this conversation.
Looking forward to your contributions,
Best Regards, Dave

PS: Old, but still relevant (I need to see if Jean Marie has an updated version):
http://www.streckenflug.at/download/motorprobleme.pdf

At 20:06 08 December 2019, Dave Nadler wrote:
On Sunday, December 8, 2019 at 1:47:26 PM UTC-5, Eric Greenwell
wrote:
Are we really having this conversation after all these years,
with 80% of the gliders going out the factory door with an
engine?

That is PRECISELY why we're having this conversation.
Looking forward to your contributions,
Best Regards, Dave

PS: Old, but still relevant (I need to see if Jean Marie has an
updated
version):
http://www.streckenflug.at/download/motorprobleme.pdf


Prop blade punctured fuselage, dented fuel tank and restricted
aileron movement. It nearly took out the brakes as well. The prop
had flown 38 hours

Missing blade

The flight manual says to check for cracks in the hub every day. This
is what a very badly cracked hub looks like.

There are photos I will try to put a link in.