Doesn't take long for the boffins to start once macready is mentioned.

Macready works.

What doesn't work so well is the push/pull speed to fly modes of
"smart"varios (and the way Pilots interpret them)

I like Netto in cruise so I can adjust my speed and track accordingly.

I don't require any "speed to fly" function from the electronics. (I seem
to do
OK ignoring them)

Difficult for me to find any instrument that caters for this.

Tom





01:24 27 October 2014, Tibor Arpas wrote:
On Sunday, October 26, 2014 5:04:49 PM UTC+1,
wrote:

=20
As I understand it, 'Equivalent MC' reverses the STF calculation, and
pro=
duces a figure from your averaged airspeed and the polar for your
aircraft.
=20
For example, assume MC theory for a glider states a STF of 150kph for a
2=
..0m/s estimated climb. 'Equivalent MC' reverses this equation; If you
fly
t=
his glider at a constant 150kph IAS for the averaging period, the
'Equivale=
nt MC' will be 2.0m/s.
=20
The way I've heard it described, the idea is that you directly compare
yo=
ur 'Equivalent MC' figure with your MC figure and adjust your airspeed
acco=
rdingly. If 'Equivalent MC' =3D 2.1m/s and MC =3D 2.0m/s, slow down. If
'Eq=
uivalent MC' =3D 1.9m/s and MC =3D 2.0m/s, speed up.

Yes.=20
Little clarification: for basic function you don't need to set the MC
into
=
the variometer, just keep it in mind.
Little modification: If 'Equivalent MC' shows 2.1 and you expect 2.0 in
fro=
nt of you don't bother slowing down. 0.1 m/s difference is negligible.

I think it's totaly intiuitive to fly fast into good weather and fly
slowly=
into bad weather. This would be just little guidance to learn and later
co=
nfirm the numbers.

=20
Climb and sink does not directly influence 'Equivalent MC', which is
one
=
reason why 'Equivalent MC' might be a poor value to display on a vario.

No, I totally would want it to be adjusted for sink and climb.=20

LK8000 doesn't adjust for that, so it's probably not a good
example/definit=
ion. What I meant is "flown MC". Its reversing the STF calculation and
prod=
ucing a figure from averaged airspeed, the polar and the rise/sink.

Also as a precaution against a common mistake of flying so slowly in sink
t=
hat you're actually achieving smaller then maximal achievable L/D I would
l=
ike to have immediate warning for that (spead up!).