On Fri, 16 May 2014 00:23:06 -0700, Bruce Hoult wrote:

I know a national champion, Worlds contestant, and multiple record
holder who says that in his Discus he always sets the speed to fly for 1
knot of lift. Unless the average lift is better than 10 knots. Then he
sets it to 2 knots.

1 kt works well for me too (Std Libelle fitted with SDI C4 vario set to
auto switch climb-cruise at 58 kts and cruise-climb at 55 kts).

OTOH a club mate (ex instructor and past club CFI) says:

a) never set MC less than 1 (except in survival mode) or more than 4
(unless you want to land out).

b) do first climb of the day to cloud base, noting where the strongest
lift band is, and then set MC to half the cloudbase measured in
thousands of feet, so if the cloud base is 4000ft, set MC=2.
This seems fair in the UK, may work in NE USA but is probably wrong
elsewhere. however, the method may work in other regions with a
different division factor.


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martin@ | Martin Gregorie
gregorie. | Essex, UK
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