Those are lovely aircraft, Jim; thanks for showing them to us.
I should have thought that there would be some drag from the slots, but I
accept your opinion.
Chris
> On 11 Aug 15, at 19:31, Jim Nichols <jhnichols@xxxxxxxxxxxxx> wrote:
>
> A flight of three beautiful Swift aircraft visited our airport this morning.
> http://www.gallery.leica-users.org/v/OldNick/Swifts.jpg.html
> <http://www.gallery.leica-users.org/v/OldNick/Swifts.jpg.html>
>
> These all had different modifications. Each had larger engines. All had the
> original control wheels replaced by fighter-like control sticks. This one
> was closest to the original appearance, polished aluminum.
> http://www.gallery.leica-users.org/v/OldNick/Polished+Swift.jpg.html
> <http://www.gallery.leica-users.org/v/OldNick/Polished+Swift.jpg.html>
>
> It was the only one that had the window left open for a panel shot.
> http://www.gallery.leica-users.org/v/OldNick/Swift+Panel.jpg.html
> <http://www.gallery.leica-users.org/v/OldNick/Swift+Panel.jpg.html>
>
> It also had the original leading edge slot to maintain better flow over the
> ailerons at low speeds.
> http://www.gallery.leica-users.org/v/OldNick/Slots+Open.jpg.html
> <http://www.gallery.leica-users.org/v/OldNick/Slots+Open.jpg.html>
>
> The red Swift had the slots closed. The Swift has long led to a lot of
> hangar talk about these slots. Most agree that there is not much speed to be
> gained by closing them unless a lot of horsepower has been added, resulting
> in speeds above 170 mph. Everyone seems to hold to his own opinion about how
> closing the slots affects stall characteristics.
> http://www.gallery.leica-users.org/v/OldNick/Slots+Closed.jpg.html
> <http://www.gallery.leica-users.org/v/OldNick/Slots+Closed.jpg.html>
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