Thread: STF question
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Old March 15th 08, 03:13 AM posted to rec.aviation.soaring
Doug Hoffman[_2_]
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Default STF question

Ramy wrote:
We know flight computers are taking into account the polar, MC setting
and the current sink/lift to determine the speed to fly, but AFAIK
they don't (or at least my 302 doesn't) take into account the head/
tail wind component.


Are you sure about that? Certainly the computer "knows" the wind
direction and velocity. It's then rather trivial to factor that in to
other calculations.



As such, they will often command too slow speed
when flying in headwind, unless the pilots manually increases the MC
setting, which is not easy to determine. This is especially critical
in final glide against strong head wind. I would think it would be
straight forward to incorportae head/tail wind into the STF
calculation, or at least make it optional. Any thoughts why not?


It *is* straightforward. SoarPilot does it. I would double-check your
assumptions.

Regards,

-Doug