On Tuesday, November 29, 2016 at 7:53:58 AM UTC-5, wrote:
On Monday, 5 March 2001 01:00:08 UTC+1, MHende6388 wrote:
Curious what the highest sailplane launch from a winch has ever been for the
longest cable.

Michael

At the Reinsdorf Airfield whinch launches with 2,600m (8500ft) cable are possible. As long as I know, the record was a ASK-21 to 1380m (4500ft).

There are several YouTube videos out there showing winch launches made from the Weelde, Belgium airbase going to 1,450m (4,760ft) using 3,000m of Spectra/Dyneema line and a K21.

https://www.youtube.com/watch?v=R1uC0lFVXNU
https://www.youtube.com/watch?v=-Dw6r_1r91M
https://www.youtube.com/watch?v=oyRlkOgkZho

We (Carolina Soaring Assoc.) do achieve anywhere between 1,300-2,100ft using our home built winch powered by a mildly hopped-up Ford 460 engine and 4,300ft of Spectra. Wind and pilot skills have a strong influence on the resulting release height.

Uli