Re: Grob salvage anyone.

[[email protected]]

On Wednesday, June 1, 2016 at 11:06:07 AM UTC-5, BruceGreeff wrote:
> Can anyone direct me to a source of good/repairable Grob CS77 wings?
> Looking for Starboard primarily/specifically.
>
> Have some that are beyond economical repair...
>
> Any advice gladly received.
> Location is South Africa, but we can freight.
>
> Thanks
> Bruce
> --
> Bruce Greeff
> T59D #1771

There is a set of wings off an Astir CS from a wreck in Manitoba. Not sure what the status is as the insurance company owns it, had put it on their salvage auction which ended 2 months ago and the Club that owns it has heard nothing as to the new owners.

The glider suffered a ground-loop on take-off, became airborne while going sideways and then dug in the tail which twisted the fuselage splitting it wide open and hence it was a write off.

[Jon Towill]

According to the drawings on the Lindner website, the CS77 wings leading
edges are swept back slightly whereas on the CS they are not. So even if
you could get the wings to fit and the wing/fuselage junction to work, the
C of G would be wrong.

Why not see if you can find a pair of Discus wings, that way you could make
a Disastir.

Regards, Jon

[[email protected]]

> Why not see if you can find a pair of Discus wings, that way you could make
> a Disastir.
>
> Regards, Jon


"Pretty good. Pretty, pretty good."

Larry David

[Bob Kuykendall]

On Friday, June 3, 2016 at 3:30:07 AM UTC-7, Jon Towill wrote:
> According to the drawings on the Lindner website, the CS77 wings leading
> edges are swept back slightly whereas on the CS they are not...

Interesting. I guess the next question would be whether the lift pin and control connection interfaces are the same between the different types. It's not a deal-killer if not; composites make it fairly easy to execute fairly major changes. But it is the sort of complication that might make it economically unviable.

If your aeronautic authorities are cooperative, it wouldn't be that hard to determine the CG range in terms of mean aerodynamic chord (MAC), and use that. Assuming, of course, that the different aircraft have similar tail volumes, but that's probably a good bet.

Thanks, Bob K.

[Dave Harrison]

http://www.sky-craft.co.uk/acatalog/Used_parts_for_Sailplanes.html

There are a pair of cs77 wings here for sale. ( I have no connections with
sky
craft just noticed them when I was looking for an elevator for my cs77. )

Good luck with the rebuild.

[Dave Harrison]

At 17:40 03 June 2016, Bob Kuykendall wrote:
>On Friday, June 3, 2016 at 3:30:07 AM UTC-7, Jon Towill wrote:
>> According to the drawings on the Lindner website, the CS77 wings
leading
>> edges are swept back slightly whereas on the CS they are not...
>
>Interesting. I guess the next question would be whether the lift pin and
>co=
>ntrol connection interfaces are the same between the different types.
It's
>=
>not a deal-killer if not; composites make it fairly easy to execute
fairly
>=
>major changes. But it is the sort of complication that might make it
>econom=
>ically unviable.
>
>If your aeronautic authorities are cooperative, it wouldn't be that hard
>to=
> determine the CG range in terms of mean aerodynamic chord (MAC), and
use
>t=
>hat. Assuming, of course, that the different aircraft have similar tail
>vol=
>umes, but that's probably a good bet.
>
>Thanks, Bob K.
>

http://www.sky-craft.co.uk/acatalog/Used_parts_for_Sailplanes.html

These guys have a pair of cs77 wings for sale ( I have no connection with
sky
craft, just noticed them when looking for an elevator for my cs77)

Good luck with the rebuild.