K-13 TO k-7 elevator

[Vassilios Mazis]

hello all,

I am thinking of replacing a K-7 elevator and possible the whole
horizontal stab + elevator with one from a K-13. I guess I will be
asking Scleicher if such action is approved, but are there any
oppinions out there about it ?
has it been done before ?

incidentally, can you do the reverse, ie use K-7 wings on a damaged
K-13 ?


regards

Vassilios

[Dave Martin]

Ian you may find that this is a K7 conversion. Several
K7's were converted to K13 look a likes. We had four
at Camphill, the fuselage was considerable wider at
the waist and had a spacing section placed as you describe.
The way to tell the difference is that the K13 has
a sprung wheel -- I think the older ones were on the
end of the skid and the K7 is not sprung. The K7 tailplane
has round tips on the elevator and the K13 square ones.

The rose bearing fixings are a different size and spacing
again from memory the K7 has smaller and closer fixings
and the front fixing bolt may be a different distance
from the bearings.

Dave M





At 10:48 31 August 2003, Ian Johnston wrote:
>On Tue, 19 Aug 2003 23:22:03 UTC, (Vassilios
>Mazis)
>wrote:
>
>: incidentally, can you do the reverse, ie use K-7
>wings on a damaged
>: K-13 ?
>
>Yes. The Scottish Gliding Union at Portmoak had a K13
>with K7 wings -
>may still have it. There was an intemediate framework
>to space out the
>two wing roots, and the additional foot or two of span
>was said by
>some to give noticeably better performance than a normal
>K13.
>Personally I always preferred the Bocian ...
>
>There is/was also a K7m at Rufforth (Ouse GC, York
>Gliding Centre)
>which was a K7 with the wings moved down to K13 position.
>I can't
>remember how the root-separation problem was solved
>in that case,
>though.
>
>Ian
>
>
>--
>
>