REFLECTOR:Lower Winglets
Al Gietzen
reflector@tvbf.org
Tue, 27 Jan 2004 06:58:31 -0800
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.....why does the Velocity lower winglet feature the airfoil backwards
whereas the Rutan design is said (I took a look at Al's second picture
and the inner shape of the lower winglet actually looks concave - as in
an aerofoil - to me...) to be the reverse? ...Burt Rutan, where are you
when we need you?
Perhaps I gave the impression that this is more important than it is.
The difference in camber between the inside and outside the Velocity
lower winglet isn't that much; and the effective Reynolds number for
this very short airfoil suggests that it is very marginally effective.
Al
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<p class=3DMsoNormal style=3D'margin-left:.5in'><font size=3D3 =
face=3D"Times New Roman"><span
style=3D'font-size:12.0pt'>.....why does the Velocity lower winglet =
feature the
airfoil backwards whereas the Rutan design is said (I took a look at =
Al's
second picture and the inner shape of the lower winglet actually looks
concave - as in an aerofoil - to me...) to be the reverse? ...Burt =
Rutan,
where are you when we need you?</span></font></p>
</div>
<div>
<p class=3DMsoNormal style=3D'margin-left:.5in'><font size=3D3 =
face=3D"Times New Roman"><span
style=3D'font-size:12.0pt'> </span></font></p>
</div>
<div>
<p class=3DMsoNormal style=3D'margin-left:.5in'><font size=3D3 =
color=3Dblue
face=3D"Times New Roman"><span =
style=3D'font-size:12.0pt;color:blue'>Perhaps I gave
the impression that this is more important than it is. The =
difference in
camber between the inside and outside the Velocity lower winglet =
isn’t
that much; and the effective Reynolds number for this very short airfoil =
suggests
that it is very marginally effective.</span></font></p>
<p class=3DMsoNormal style=3D'margin-left:.5in'><font size=3D3 =
color=3Dblue
face=3D"Times New Roman"><span =
style=3D'font-size:12.0pt;color:blue'> </span></font></p>
<p class=3DMsoNormal style=3D'margin-left:.5in'><font size=3D3 =
color=3Dblue
face=3D"Times New Roman"><span style=3D'font-size:12.0pt;color:blue'>Al =
</span></font></p>
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