brianDG303[_2_]
November 28th 09, 01:06 AM
On Nov 27, 2:15*pm, "Tim Mara" > wrote:
> there is only one type of "approved" tow rings set..these are from TOST (I
> have them) don't know how it is possible to lose one of these rings..not if
> they are the "approved" types...
> but they are sold as ring pairs only
> even on my website there is a warning regarding tow rings:http://wingsandwheels.com/page30.htmdirectly from TOST
> WARNING!
> Recently, connecting ring pairs that do not comply with the LN 65091
> standard have begun to appear on the German market. All type-approved tow
> releases may be used only with a connecting ring pair that complies with the
> 1985 edition of this standard (Section 2.6 LBA-approved Operating Manual)..
> The ring pairs (presumably from Egger) are welded - this is explicitly
> prohibited by LN 65091. They are not correctly dimensioned and will not
> operate reliably with Tost tow releases. However, these ring pairs are even
> being used in flying schools, sometimes with a "certificate of approval"
> from the manufacturer.
> These non-approved ring pairs damage the leading edges of the tow releases
> and can cause the ring to jam in the tow release so that the release cannot
> be activated.
> It is to be expected that Germany will start seeing damage to tow releases
> and problems with their operation similar to that already happening in the
> Netherlands.
> You should give some thought to the following points:
>
> * a.. If a release cannot be activated, the consequences can be fatal.
> * b.. The damage to the tow release necessitates replacing the housing or
> the hook. The cost of this repair is far higher than the saving through
> buying cheaper rings.
> * c.. If a tow release is operated with non-approved components, the
> manufacturer's warranty becomes null and void. In addition, in the event of
> a failure or accident, an insurance company can legitimately repudiate its
> obligation to pay.
> * Further information on :http://www.tost.de/evers/edefault.htm
>
> tim
>
> Please visit the Wings & Wheels website atwww.wingsandwheels.com
Tim,
we tow off of Tost rings normally, but for dual tows (2 gliders 1 tow
plane) there is a set of rings that fit together such that they will
disconnect each other if the tow is abandoned.
>
> "brianDG303" > wrote in message
>
> ...
>
>
>
> > In preparing our clubs tow lines for the season it seems we lost track
> > of 1/2 of a dual tow set, the small ring. I expect we will have to buy
> > the complete set but I have no idea where to find them- anyone know?
>
> > Thanks all
> > brian
> there is only one type of "approved" tow rings set..these are from TOST (I
> have them) don't know how it is possible to lose one of these rings..not if
> they are the "approved" types...
> but they are sold as ring pairs only
> even on my website there is a warning regarding tow rings:http://wingsandwheels.com/page30.htmdirectly from TOST
> WARNING!
> Recently, connecting ring pairs that do not comply with the LN 65091
> standard have begun to appear on the German market. All type-approved tow
> releases may be used only with a connecting ring pair that complies with the
> 1985 edition of this standard (Section 2.6 LBA-approved Operating Manual)..
> The ring pairs (presumably from Egger) are welded - this is explicitly
> prohibited by LN 65091. They are not correctly dimensioned and will not
> operate reliably with Tost tow releases. However, these ring pairs are even
> being used in flying schools, sometimes with a "certificate of approval"
> from the manufacturer.
> These non-approved ring pairs damage the leading edges of the tow releases
> and can cause the ring to jam in the tow release so that the release cannot
> be activated.
> It is to be expected that Germany will start seeing damage to tow releases
> and problems with their operation similar to that already happening in the
> Netherlands.
> You should give some thought to the following points:
>
> * a.. If a release cannot be activated, the consequences can be fatal.
> * b.. The damage to the tow release necessitates replacing the housing or
> the hook. The cost of this repair is far higher than the saving through
> buying cheaper rings.
> * c.. If a tow release is operated with non-approved components, the
> manufacturer's warranty becomes null and void. In addition, in the event of
> a failure or accident, an insurance company can legitimately repudiate its
> obligation to pay.
> * Further information on :http://www.tost.de/evers/edefault.htm
>
> tim
>
> Please visit the Wings & Wheels website atwww.wingsandwheels.com
Tim,
we tow off of Tost rings normally, but for dual tows (2 gliders 1 tow
plane) there is a set of rings that fit together such that they will
disconnect each other if the tow is abandoned.
>
> "brianDG303" > wrote in message
>
> ...
>
>
>
> > In preparing our clubs tow lines for the season it seems we lost track
> > of 1/2 of a dual tow set, the small ring. I expect we will have to buy
> > the complete set but I have no idea where to find them- anyone know?
>
> > Thanks all
> > brian