On Jun 1, 2:01*pm, Andy wrote:
On Jun 1, 9:52*am, John Cochrane
wrote:

That's a poor solution. A sticky knob that won't let you go below max
range would be better. If it shows Mc 0 but it's really set at (say)
Mc 2 because you're in a howling headwind, you need to know to cruise
at Mc 2 and not to take any 1.9 kt thermals. If the indicator shows Mc
0 you don't know that

Agree, but he seemed very sure that he had been told by his instrument
designer that MC zero would alway yield max range glide since the
computer knew the wind and would take account of it.

Maybe I should ask Dave directly since the SN10 was the instrument in
question.

Andy

Hmm.... I wonder what my PDA program does in this case? Anyway,
final glide is in table form for me (Soarpilot), which shows me glide
slope
numbers compared with different airspeeds. When there's a non-zero
MC value for best glide it's apparent on that table. Example screen
shown he
http://www.soaringpilot.org/dokuwiki...l_glide_screen