View Single Post
  #137  
Old February 14th 13, 09:49 PM posted to rec.aviation.soaring
John Galloway[_1_]
external usenet poster
 
Posts: 215
Default Best performing Vario?

At 22:58 13 February 2013, wrote:
If the butterfly -- or clearnav, with future software -- did read

out 3 d
w=
ind 20 times a second, this would be a big advantage. Not

only could you
de=
tect lift long before F =3D MA gets the glider moving upward,

you could
tel=
l upward gusts from forward gusts and sideways gusts.

Dynamic soaring
might=
even become possible, or at least better energy extraction

from gusts.
Eve=
n the 302 has the necessary sensors, my impression is that

we're all
waitin=
g on the software development.=20

John Cochrane


Regarding gusts, the Butterfly website (in FAQ) already claims:

"A conventional variometer uses changes in air pressure (TE-
pressure, static- and total-pressure) to determine energy
changes the aircraft experiences. Butterfly Vario does the same.
Additionally it uses an inertial sensing platform that allows for
real-time determination of airmass-movement and realtime
determination of wind. With this technology a pilot can judge
the difference between gust induced energy changes and
thermal induced energy changes."

John Galloway