Inter-thermal cruise speeds?

On Feb 12, 8:01 pm, Tony Verhulst <n...@thankyou.com> wrote:
> Frank wrote:
> > I'm curious what others are using for inter-thermal cruise speeds for
> > modern 15m (and 18m I guess) gliders like the Ventus 2bx, Ventus 2cx,
> > ASW-27, ASG-29, Diana 2, etc (add models as necessary).
>
> According to a fellow club member (Discus 2), if the day is booming, fly
> 80 kts, if the day is good, fly 70 kts, if the day is so so, fly 60 kts.
> YMMV.
>
> Tony

Those sound like east coast conditions with no water. They correspond
to 2.5, 1 and 0 knot McCready settings on my ASW 27 - a D2 wouldn't be
too far off.

It would have to be a truly weak day for me to fly best L/D (60 kts)
all the time.

Andy