Don't you just hate it when the propeller departs the aircraft?

[Dave Nadler]

A prospect was checking out the nifty Antares 18T
sustainer system somewhere over the forest west of ZWB,
when to his great surprise, the propeller departed.
Hell of a way to impress a prospect.

The problem is with the Solo propeller shaft with the
belt reduction system as used on, IIRC:
- Ventus CM (not V2)
- Duo T
- DG-100T
- Antares 18T
Apparently there have also been recent incidents with DG1000T.
The propeller is not identical on all the above so the
failure rates will differ.

Axel Lange has worked with Solo to redesign the offending
part and is working on EASA approvals. IIRC this will be
the 3rd or 4th AD on this part, but Axel can calculate why
it failed and also how to make a part that won't...

I don't know if there's been any communication from SH
or who else uses this particular (front belt-reduction)
Solo system.

I see DG has published some info here:
http://www.dg-flugzeugbau.de/index.php?id=1349&tx_ttnews[tt_news]=147&cHash=cd1730aca0037e72c7b2911e83136b2e

Another reminder to always operate your motor with a
plan for failure at any point...

Aaarrrggggg....
Be safe out there,
See ya, Dave "YO electric"

[[email protected]]

On Wednesday, December 18, 2013 4:54:38 PM UTC, Dave Nadler wrote:
> A prospect was checking out the nifty Antares 18T
>
> sustainer system somewhere over the forest west of ZWB,
>
> when to his great surprise, the propeller departed.
>
> Hell of a way to impress a prospect.
>
>
>
> The problem is with the Solo propeller shaft with the
>
> belt reduction system as used on, IIRC:
>
> - Ventus CM (not V2)
>
> - Duo T
>
> - DG-100T
>
> - Antares 18T
>
> Apparently there have also been recent incidents with DG1000T.
>
> The propeller is not identical on all the above so the
>
> failure rates will differ.
>
>
>
> Axel Lange has worked with Solo to redesign the offending
>
> part and is working on EASA approvals. IIRC this will be
>
> the 3rd or 4th AD on this part, but Axel can calculate why
>
> it failed and also how to make a part that won't...
>
>
>
> I don't know if there's been any communication from SH
>
> or who else uses this particular (front belt-reduction)
>
> Solo system.
>
>
>
> I see DG has published some info here:
>
> http://www.dg-flugzeugbau.de/index.php?id=1349&tx_ttnews[tt_news]=147&cHash=cd1730aca0037e72c7b2911e83136b2e
>
>
>
> Another reminder to always operate your motor with a
>
> plan for failure at any point...
>
>
>
> Aaarrrggggg....
>
> Be safe out there,
>
> See ya, Dave "YO electric"

I think the Duo T uses the Solo 2350D engine/prop shaft whereas the others use the Solo 2350C.

http://aircraft.solo-online.com/

John Galloway

[Dave Nadler]

On Wednesday, December 18, 2013 1:14:56 PM UTC-5, wrote:
> I think the Duo T uses the Solo 2350D engine/prop shaft
> whereas the others use the Solo 2350C.
>
> http://aircraft.solo-online.com/
>
> John Galloway

The issue is the prop shaft (supporting the reduction
pulley and prop hub), not the motor itself.
While the Duo uses a different assembly and prop hub,
I thought the prop shaft was the same part, but I
am not sure... Also the Duo T's banana-prop may
produce lower fatigue-loads than a two-blader,
again I'm not sure... Anybody have any info from SH?

Be careful out there,
Best Regards, Dave

[Morgans[_2_]]

"Dave Nadler" > wrote in message
...
> A prospect was checking out the nifty Antares 18T
> sustainer system somewhere over the forest west of ZWB,
> when to his great surprise, the propeller departed.
> Hell of a way to impress a prospect.
>
> The problem is with the Solo propeller shaft with the
> belt reduction system as used on, IIRC:
> - Ventus CM (not V2)
> - Duo T
> - DG-100T
I'll bet any money the problem will turn out to be torsional harmonics.

Remember the problem with the BD-5? Some excellent research was developed
out of the problems of using a 2 cycle engine in that aircraft.

Seems I remember that one fix involved a sprag clutch (one was slipping) to
get over the torque reversal at some rpms.
--
Jim in NC


---
This email is free from viruses and malware because avast! Antivirus protection is active.
http://www.avast.com

[darrylr]

On Wednesday, December 18, 2013 8:54:38 AM UTC-8, Dave Nadler wrote:
> A prospect was checking out the nifty Antares 18T
>
> sustainer system somewhere over the forest west of ZWB,
>
> when to his great surprise, the propeller departed.
>
> Hell of a way to impress a prospect.
>
>
>
> The problem is with the Solo propeller shaft with the
>
> belt reduction system as used on, IIRC:
>
> - Ventus CM (not V2)
>
> - Duo T
>
> - DG-100T
>
> - Antares 18T
>
> Apparently there have also been recent incidents with DG1000T.
>
> The propeller is not identical on all the above so the
>
> failure rates will differ.
>
>
>
> Axel Lange has worked with Solo to redesign the offending
>
> part and is working on EASA approvals. IIRC this will be
>
> the 3rd or 4th AD on this part, but Axel can calculate why
>
> it failed and also how to make a part that won't...
>
>
>
> I don't know if there's been any communication from SH
>
> or who else uses this particular (front belt-reduction)
>
> Solo system.
>
>
>
> I see DG has published some info here:
>
> http://www.dg-flugzeugbau.de/index.php?id=1349&tx_ttnews[tt_news]=147&cHash=cd1730aca0037e72c7b2911e83136b2e
>
>
>
> Another reminder to always operate your motor with a
>
> plan for failure at any point...
>
>
>
> Aaarrrggggg....
>
> Be safe out there,
>
> See ya, Dave "YO electric"

Did he buy the glider? :-)

[Frank Whiteley]

On Wednesday, December 18, 2013 8:33:51 PM UTC-7, Morgans wrote:
> "Dave Nadler" > wrote in message
>
> ...
>
> > A prospect was checking out the nifty Antares 18T
>
> > sustainer system somewhere over the forest west of ZWB,
>
> > when to his great surprise, the propeller departed.
>
> > Hell of a way to impress a prospect.
>
> >
>
> > The problem is with the Solo propeller shaft with the
>
> > belt reduction system as used on, IIRC:
>
> > - Ventus CM (not V2)
>
> > - Duo T
>
> > - DG-100T
>
> I'll bet any money the problem will turn out to be torsional harmonics.
>
>
>
> Remember the problem with the BD-5? Some excellent research was developed
>
> out of the problems of using a 2 cycle engine in that aircraft.
>
>
>
> Seems I remember that one fix involved a sprag clutch (one was slipping) to
>
> get over the torque reversal at some rpms.
>
> --
>
> Jim in NC
>
>
Russia AC-5m's have had some prop departures due to broken shafts. I believe one resulted in a fatal at North Las Vegas about two years ago. Inspections have uncovered cracks in others. IIRC, there was a fix worked.

Frank Whiteley

[Dave Nadler]

On Wednesday, December 18, 2013 10:33:51 PM UTC-5, Morgans wrote:
> I'll bet any money the problem will turn out to be torsional harmonics.

This is way over-simplified, but useful to think about.
And I am absolutely not expert in this area! But...
You can think of the assembly as a set of springs:
- the drive belt
- the structure between the engine and prop hub
- the prop itself

When the engine fires, it:
- stretches the drive belt on one side, loosens on the other
- flexes the support structure
- bends the prop (in both torsion and load directions)

These produce fatigue loads on all components involved.
All of which have conspired to produce numerous failures
in many different makes and models over the years,
on all of the affected parts.

Hope that helps!
Be careful out there, and ALWAYS have a plan for a failure
at all points during motor operation,
Best Regards, Dave "YO electric"

[Muttley]

I would say a further point on the SH Turbos is that they are only started by Windmilling and do not have a Starter Motor, therefore maybe less stress with slower Windmill starts on the Belts and prop shafts!!!!

A SH Turbo Driver

[Dave Nadler]

On Thursday, December 19, 2013 7:15:37 AM UTC-5, Muttley wrote:
> I would say a further point on the SH Turbos is that they are
> only started by Windmilling and do not have a Starter Motor,
> therefore maybe less stress with slower Windmill starts on
> the Belts and prop shafts!!!!
>
> A SH Turbo Driver

Um, no, the start mechanism has no affect on fatigue problems.
However, do review the TNs and/or ADs on the support structure
in your installation...

[Craig Funston[_2_]]

On Thursday, December 19, 2013 4:31:09 AM UTC-8, Dave Nadler wrote:
> On Thursday, December 19, 2013 7:15:37 AM UTC-5, Muttley wrote:
>
> > I would say a further point on the SH Turbos is that they are
>
> > only started by Windmilling and do not have a Starter Motor,
>
> > therefore maybe less stress with slower Windmill starts on
>
> > the Belts and prop shafts!!!!
>
> >
>
> > A SH Turbo Driver
>
>
>
> Um, no, the start mechanism has no affect on fatigue problems.
>
> However, do review the TNs and/or ADs on the support structure
>
> in your installation...

There's a very nice article describing the engineering mechanics of prop drives at this link. If the link doesn't work, just google "bd-5 prop shaft analysis" and choose the top link.

Craig

http://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=1&ved=0CC4QFjAA&url=http%3A%2F%2Fwww.bugatti100p.com%2Fweb_documen ts%2Ftorsionalvibration.pdf&ei=bUizUuW5H9XsoASbzYDYAw&usg=AFQjCNGE_3nkO48rd9Xbht6Dyw5B-vvprg&sig2=RcaCY4NOdBe6sCf79Sb2KA&bvm=bv.58187178,d.cGU&cad=rja



http://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=1&ved=0CC4QFjAA&url=http%3A%2F%2Fwww.bugatti100p.com%2Fweb_documen ts%2Ftorsionalvibration.pdf&ei=3kizUo3hH4_uoAS1-4HgBQ&usg=AFQjCNGE_3nkO48rd9Xbht6Dyw5B-vvprg&sig2=7xFMjcBRFG0HlQDz9NVevQ&bvm=bv.58187178,d.cGU

[Dave Nadler]

On Thursday, December 19, 2013 2:29:53 PM UTC-5, Craig Funston wrote:
> There's a very nice article describing the engineering
> mechanics of prop drives at this link.

Excellent read, Thanks Craig!

[Bill T]

Not at North Las Vegas (VGT). Perhaps you refer to the Russia that went down about 70 miles north of Tonopah at Kingston NV.
IIRC he tried to bail but had problems.

BT

[Ralph Jones[_3_]]

On Wed, 18 Dec 2013 22:33:51 -0500, "Morgans"
> wrote:

>
>"Dave Nadler" > wrote in message
...
>> A prospect was checking out the nifty Antares 18T
>> sustainer system somewhere over the forest west of ZWB,
>> when to his great surprise, the propeller departed.
>> Hell of a way to impress a prospect.
>>
>> The problem is with the Solo propeller shaft with the
>> belt reduction system as used on, IIRC:
>> - Ventus CM (not V2)
>> - Duo T
>> - DG-100T
> I'll bet any money the problem will turn out to be torsional harmonics.
>
>Remember the problem with the BD-5?

Yeah, I remember the problem with the BD-5. I know a few people who'd
like to get their hands on him.

[Frank Whiteley]

On Thursday, December 19, 2013 4:47:20 PM UTC-7, Bill T wrote:
> Not at North Las Vegas (VGT). Perhaps you refer to the Russia that went down about 70 miles north of Tonopah at Kingston NV.
>
> IIRC he tried to bail but had problems.
>
>
>
> BT

That's the one. You're right, Kingston, NV.

FW

[[email protected]]

Dave
The LBA restricts the AD to DG1000. The EASA mentions "with unfolding propeller". All gliders in your list have unfolding propellors except the Ventus CM which means the AD doesn't apply to it (yet ?).
Dan G


On Wednesday, December 18, 2013 11:54:38 AM UTC-5, Dave Nadler wrote:
> A prospect was checking out the nifty Antares 18T
>
> sustainer system somewhere over the forest west of ZWB,
>
> when to his great surprise, the propeller departed.
>
> Hell of a way to impress a prospect.
>
>
>
> The problem is with the Solo propeller shaft with the
>
> belt reduction system as used on, IIRC:
>
> - Ventus CM (not V2)
>
> - Duo T
>
> - DG-100T
>
> - Antares 18T
>
> Apparently there have also been recent incidents with DG1000T.
>
> The propeller is not identical on all the above so the
>
> failure rates will differ.
>
>
>
> Axel Lange has worked with Solo to redesign the offending
>
> part and is working on EASA approvals. IIRC this will be
>
> the 3rd or 4th AD on this part, but Axel can calculate why
>
> it failed and also how to make a part that won't...
>
>
>
> I don't know if there's been any communication from SH
>
> or who else uses this particular (front belt-reduction)
>
> Solo system.
>
>
>
> I see DG has published some info here:
>
> http://www.dg-flugzeugbau.de/index.php?id=1349&tx_ttnews[tt_news]=147&cHash=cd1730aca0037e72c7b2911e83136b2e
>
>
>
> Another reminder to always operate your motor with a
>
> plan for failure at any point...
>
>
>
> Aaarrrggggg....
>
> Be safe out there,
>
> See ya, Dave "YO electric"

[Dave Nadler]

On Sunday, December 22, 2013 4:19:37 PM UTC-5, wrote:
> The LBA restricts the AD to DG1000. The EASA mentions "with
> unfolding propeller". All gliders in your list have unfolding
> propellors except the Ventus CM which means the AD doesn't
> apply to it (yet ?).

I have no idea what EASA means by "with unfolding propeller".
On the list above, only the DuoT has a hinged (flapping)
propeller, which would I think reduce fatigue loads. All the
others have conventional one-piece propellers (except maybe a
handful of early Ventus CM which had some kind of asymmetrical
prop; I can't remember if those were hinged)...

I'll try contact SH after the holiday break.

Have a great holiday,
See ya, Dave "YO electric"

[[email protected]]

Check this out http://ad.easa.europa.eu/ad/2013-0217-E.
Yes The Ventus CM has an asymmetrical prop that probably reduces the torsional vibrations.
Dan G (Ventus CM Owner)

On Wednesday, December 18, 2013 11:54:38 AM UTC-5, Dave Nadler wrote:
> A prospect was checking out the nifty Antares 18T
>
> sustainer system somewhere over the forest west of ZWB,
>
> when to his great surprise, the propeller departed.
>
> Hell of a way to impress a prospect.
>
>
>
> The problem is with the Solo propeller shaft with the
>
> belt reduction system as used on, IIRC:
>
> - Ventus CM (not V2)
>
> - Duo T
>
> - DG-100T
>
> - Antares 18T
>
> Apparently there have also been recent incidents with DG1000T.
>
> The propeller is not identical on all the above so the
>
> failure rates will differ.
>
>
>
> Axel Lange has worked with Solo to redesign the offending
>
> part and is working on EASA approvals. IIRC this will be
>
> the 3rd or 4th AD on this part, but Axel can calculate why
>
> it failed and also how to make a part that won't...
>
>
>
> I don't know if there's been any communication from SH
>
> or who else uses this particular (front belt-reduction)
>
> Solo system.
>
>
>
> I see DG has published some info here:
>
> http://www.dg-flugzeugbau.de/index.php?id=1349&tx_ttnews[tt_news]=147&cHash=cd1730aca0037e72c7b2911e83136b2e
>
>
>
> Another reminder to always operate your motor with a
>
> plan for failure at any point...
>
>
>
> Aaarrrggggg....
>
> Be safe out there,
>
> See ya, Dave "YO electric"

[Dave Nadler]

On Sunday, December 22, 2013 5:54:28 PM UTC-5, wrote:
> Yes The Ventus CM has an asymmetrical prop that probably
> reduces the torsional vibrations.
>
> Dan G (Ventus CM Owner)

IIRC, only a few early Ventus CMs - later ones have "normal" props.

See ya, Dave "YO electric"

[John Firth[_4_]]

What kind of asymmetry?

At least you can retract the engine; not so if the belt breaks.
!
John F




At 22:54 22 December 2013, wrote:
>Check this out http://ad.easa.europa.eu/ad/2013-0217-E.
>Yes The Ventus CM has an asymmetrical prop that probably reduces the
>torsional vibrations.
>Dan G (Ventus CM Owner)
>
>On Wednesday, December 18, 2013 11:54:38 AM UTC-5, Dave Nadler wrote:
>> A prospect was checking out the nifty Antares 18T
>>
>> sustainer system somewhere over the forest west of ZWB,
>>
>> when to his great surprise, the propeller departed.
>>
>> Hell of a way to impress a prospect.
>>
>>
>>
>> The problem is with the Solo propeller shaft with the
>>
>> belt reduction system as used on, IIRC:
>>
>> - Ventus CM (not V2)
>>
>> - Duo T
>>
>> - DG-100T
>>
>> - Antares 18T
>>
>> Apparently there have also been recent incidents with DG1000T.
>>
>> The propeller is not identical on all the above so the
>>
>> failure rates will differ.
>>
>>
>>
>> Axel Lange has worked with Solo to redesign the offending
>>
>> part and is working on EASA approvals. IIRC this will be
>>
>> the 3rd or 4th AD on this part, but Axel can calculate why
>>
>> it failed and also how to make a part that won't...
>>
>>
>>
>> I don't know if there's been any communication from SH
>>
>> or who else uses this particular (front belt-reduction)
>>
>> Solo system.
>>
>>
>>
>> I see DG has published some info here:
>>
>>
>http://www.dg-flugzeugbau.de/index.php?id=1349&tx_ttnews[tt_news]=147&cHash=cd1730aca0037e72c7b2911e83136b2e
>>
>>
>>
>> Another reminder to always operate your motor with a
>>
>> plan for failure at any point...
>>
>>
>>
>> Aaarrrggggg....
>>
>> Be safe out there,
>>
>> See ya, Dave "YO electric"
>
>

[Dan Marotta]

Is this what you mean?
http://www.glidingmagazine.com/Images/PropellerPylon01.jpg


"John Firth" > wrote in message
...
> What kind of asymmetry?
>
> At least you can retract the engine; not so if the belt breaks.
> !
> John F
>
>
>
>
> At 22:54 22 December 2013, wrote:
>>Check this out http://ad.easa.europa.eu/ad/2013-0217-E.
>>Yes The Ventus CM has an asymmetrical prop that probably reduces the
>>torsional vibrations.
>>Dan G (Ventus CM Owner)
>>
>>On Wednesday, December 18, 2013 11:54:38 AM UTC-5, Dave Nadler wrote:
>>> A prospect was checking out the nifty Antares 18T
>>>
>>> sustainer system somewhere over the forest west of ZWB,
>>>
>>> when to his great surprise, the propeller departed.
>>>
>>> Hell of a way to impress a prospect.
>>>
>>>
>>>
>>> The problem is with the Solo propeller shaft with the
>>>
>>> belt reduction system as used on, IIRC:
>>>
>>> - Ventus CM (not V2)
>>>
>>> - Duo T
>>>
>>> - DG-100T
>>>
>>> - Antares 18T
>>>
>>> Apparently there have also been recent incidents with DG1000T.
>>>
>>> The propeller is not identical on all the above so the
>>>
>>> failure rates will differ.
>>>
>>>
>>>
>>> Axel Lange has worked with Solo to redesign the offending
>>>
>>> part and is working on EASA approvals. IIRC this will be
>>>
>>> the 3rd or 4th AD on this part, but Axel can calculate why
>>>
>>> it failed and also how to make a part that won't...
>>>
>>>
>>>
>>> I don't know if there's been any communication from SH
>>>
>>> or who else uses this particular (front belt-reduction)
>>>
>>> Solo system.
>>>
>>>
>>>
>>> I see DG has published some info here:
>>>
>>>
>>http://www.dg-flugzeugbau.de/index.php?id=1349&tx_ttnews[tt_news]=147&cHash=cd1730aca0037e72c7b2911e83136b2e
>>>
>>>
>>>
>>> Another reminder to always operate your motor with a
>>>
>>> plan for failure at any point...
>>>
>>>
>>>
>>> Aaarrrggggg....
>>>
>>> Be safe out there,
>>>
>>> See ya, Dave "YO electric"
>>
>>
>

[[email protected]]

See this link
http://www.flickr.com/photos/titanet/3923711894/
So the prop extends to the open position as the RPM increases when starting.
Dan
On Tuesday, December 24, 2013 9:26:36 AM UTC-5, firsys wrote:
> What kind of asymmetry?
>
>
>
> At least you can retract the engine; not so if the belt breaks.
>
> !
>
> John F
>
>
>
>
>
>
>
>
>
> At 22:54 22 December 2013, wrote:
>
> >Check this out http://ad.easa.europa.eu/ad/2013-0217-E.
>
> >Yes The Ventus CM has an asymmetrical prop that probably reduces the
>
> >torsional vibrations.
>
> >Dan G (Ventus CM Owner)
>
> >
>
> >On Wednesday, December 18, 2013 11:54:38 AM UTC-5, Dave Nadler wrote:
>
> >> A prospect was checking out the nifty Antares 18T
>
> >>
>
> >> sustainer system somewhere over the forest west of ZWB,
>
> >>
>
> >> when to his great surprise, the propeller departed.
>
> >>
>
> >> Hell of a way to impress a prospect.
>
> >>
>
> >>
>
> >>
>
> >> The problem is with the Solo propeller shaft with the
>
> >>
>
> >> belt reduction system as used on, IIRC:
>
> >>
>
> >> - Ventus CM (not V2)
>
> >>
>
> >> - Duo T
>
> >>
>
> >> - DG-100T
>
> >>
>
> >> - Antares 18T
>
> >>
>
> >> Apparently there have also been recent incidents with DG1000T.
>
> >>
>
> >> The propeller is not identical on all the above so the
>
> >>
>
> >> failure rates will differ.
>
> >>
>
> >>
>
> >>
>
> >> Axel Lange has worked with Solo to redesign the offending
>
> >>
>
> >> part and is working on EASA approvals. IIRC this will be
>
> >>
>
> >> the 3rd or 4th AD on this part, but Axel can calculate why
>
> >>
>
> >> it failed and also how to make a part that won't...
>
> >>
>
> >>
>
> >>
>
> >> I don't know if there's been any communication from SH
>
> >>
>
> >> or who else uses this particular (front belt-reduction)
>
> >>
>
> >> Solo system.
>
> >>
>
> >>
>
> >>
>
> >> I see DG has published some info here:
>
> >>
>
> >>
>
> >http://www.dg-flugzeugbau.de/index.php?id=1349&tx_ttnews[tt_news]=147&cHash=cd1730aca0037e72c7b2911e83136b2e
>
> >>
>
> >>
>
> >>
>
> >> Another reminder to always operate your motor with a
>
> >>
>
> >> plan for failure at any point...
>
> >>
>
> >>
>
> >>
>
> >> Aaarrrggggg....
>
> >>
>
> >> Be safe out there,
>
> >>
>
> >> See ya, Dave "YO electric"
>
> >
>
> >

[[email protected]]

No, Like this http://www.flickr.com/photos/titanet/3923711894/
It's asymmetrical at rest but symmetrical when operating...
Dan


On Tuesday, December 24, 2013 11:22:47 AM UTC-5, Dan Marotta wrote:
> Is this what you mean?
>
> http://www.glidingmagazine.com/Images/PropellerPylon01.jpg
>
>
>
>
>
> "John Firth" > wrote in message
>
> ...
>
> > What kind of asymmetry?
>
> >
>
> > At least you can retract the engine; not so if the belt breaks.
>
> > !
>
> > John F
>
> >
>
> >
>
> >
>
> >
>
> > At 22:54 22 December 2013, wrote:
>
> >>Check this out http://ad.easa.europa.eu/ad/2013-0217-E.
>
> >>Yes The Ventus CM has an asymmetrical prop that probably reduces the
>
> >>torsional vibrations.
>
> >>Dan G (Ventus CM Owner)
>
> >>
>
> >>On Wednesday, December 18, 2013 11:54:38 AM UTC-5, Dave Nadler wrote:
>
> >>> A prospect was checking out the nifty Antares 18T
>
> >>>
>
> >>> sustainer system somewhere over the forest west of ZWB,
>
> >>>
>
> >>> when to his great surprise, the propeller departed.
>
> >>>
>
> >>> Hell of a way to impress a prospect.
>
> >>>
>
> >>>
>
> >>>
>
> >>> The problem is with the Solo propeller shaft with the
>
> >>>
>
> >>> belt reduction system as used on, IIRC:
>
> >>>
>
> >>> - Ventus CM (not V2)
>
> >>>
>
> >>> - Duo T
>
> >>>
>
> >>> - DG-100T
>
> >>>
>
> >>> - Antares 18T
>
> >>>
>
> >>> Apparently there have also been recent incidents with DG1000T.
>
> >>>
>
> >>> The propeller is not identical on all the above so the
>
> >>>
>
> >>> failure rates will differ.
>
> >>>
>
> >>>
>
> >>>
>
> >>> Axel Lange has worked with Solo to redesign the offending
>
> >>>
>
> >>> part and is working on EASA approvals. IIRC this will be
>
> >>>
>
> >>> the 3rd or 4th AD on this part, but Axel can calculate why
>
> >>>
>
> >>> it failed and also how to make a part that won't...
>
> >>>
>
> >>>
>
> >>>
>
> >>> I don't know if there's been any communication from SH
>
> >>>
>
> >>> or who else uses this particular (front belt-reduction)
>
> >>>
>
> >>> Solo system.
>
> >>>
>
> >>>
>
> >>>
>
> >>> I see DG has published some info here:
>
> >>>
>
> >>>
>
> >>http://www.dg-flugzeugbau.de/index.php?id=1349&tx_ttnews[tt_news]=147&cHash=cd1730aca0037e72c7b2911e83136b2e
>
> >>>
>
> >>>
>
> >>>
>
> >>> Another reminder to always operate your motor with a
>
> >>>
>
> >>> plan for failure at any point...
>
> >>>
>
> >>>
>
> >>>
>
> >>> Aaarrrggggg....
>
> >>>
>
> >>> Be safe out there,
>
> >>>
>
> >>> See ya, Dave "YO electric"
>
> >>
>
> >>
>
> >