On Dec 20, 5:29*am, Tom wrote:
"Some operators thread a tost link and a Schweizer ring on the same
end
of the tow rope. "

Two tow rings on the end of the tow rope makes it heavier, and will
fly lower behind the towplane making it more likely to hit objects on
the ground.

Tom Knauff

How can a rope with 2 ring sets be heavier than a rope terminated by a
Schweizer ring with a tost weak link added to the end?

Surely the only way to avoid the weight of 2 ring sets is to change
the whole tow rope. In any case I doubt the difference in rope droop
is significant and suspect it is probably more influenced by the type
of ball used to protect the rings.

It is, however, certain that if a weak link is added to the end of the
rope then the new end will fly lower by some fraction of the weak link
length.

This is probably only of academic interest except to those tow pilots
that consistently clear obstacles by a few inches. Those pilots will
appreciate the rope being exactly the same for each approach and
landing.

Andy