Cats
That would be 100 Launches per Winch Launch VGS site per day (6 or 7 aircraft doing 15 launches per day each) x 13 sites across the country = 1300 launches per day.
There was no Aerotow facility at any VGS site although there was a Tug (Leased) at Syerston for Instructor Training and Spin Training sorties.
As an instructor on average I would do between 15 and 20 instructional trips off the winch per day - average 5 - 10 mins each (depending on soaring conditions and student training requirements). Launches capped at 30 per day for Instructors (I did that several times that I can remember).
This did not include the 13 Motorglider VGS which usually had 3 or 4 Motorgliders each and probably did 4 or 5 hours per Aircraft per day. Instructors there probably doing 2 - 2.5 hours a day average.
Limited interaction between Winch Launch and Motorglider VGS since few were collocated or near each other. Hence my knowledge of their Ops is 'Broad Brush'. Unusual to find someone experienced in both outside of Syerston where people qualified to operate both types.
Fairly substantial totals.
Arc