It doesn't include old US types but here is a link to the BGA
recommended weak link strengths.

http://www.gliding.co.uk/bgainfo/tec...eets/weaklinks.
pdf

John Galloway


At 05:28 03 December 2012, Bart wrote:
All,

After some research I came to a conclusion that in the USA,
there is
no legal requirement to use a weak link during a ground launch,
regardless of the rope/wire strength.

First question: Am I missing something? Is there something like
a
ground launch version of 14 CFR 91.309?

Second question: If the glider's POH does not offer any
guidance (say,
1-26), what would be an appropriate range of rope breaking
strength?

Thanks!
Bart