Mike Schumann wrote:

How long is your runway?

About 600 metres (2000 ft). The winch is placed beyond the runway end,
so this gives maybe about 100 metres more cable.

As I said, even with this short runway, safety is never an issue.
Reachable height is. So our winch launches are most for pattern work
with students, with few exceptions when the weather really fits.

(Actually, at our field, I consider winch launches much safer than
aerotows. I really wouldn't want to have a cable break at the runway
threshold on aerotow. Survivable, yes, but the glider would most
problably be trash. At the winch, simulated cable breaks are routinely
trained at all altitudes with no problem.)

Stefan