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Re: Quick question for pterosaur aficionados:
I was more interested in complete folding, like "on the tarmac."
But thanks for that data.
Some of both? Is this phylogenetic? Or happenstance?
> Some of both. Any joints that
> can be flexed will help fold the wing. Most of this
> will occur at MCIV-PhIV (outboard), but the elbow can flex,
> as can the wrist. For actual folding, the wing finger
> is most important, but it should be noted that span
> reduction during flight was likely accomplished more at the
> elbow and wrist. The initial span reduction produces
> extra cambering, and so (counter-intuitively) increases the
> lift on the span-reduced wing. Additional span
> reduction reduces lift as area shrinks, and then reduces it
> a great deal if the wing begins to flutter (this last issue
> prevented pterosaurs from utilizing the same degree of span
> reduction in flight as birds use).
> Michael Habib
> Assistant Professor of Biology
> Chatham University
> Woodland Road, Pittsburgh PA 15232
> Buhl Hall, Room 226A
> (443) 280-0181
> On Mar 23, 2010, at 9:33 PM, David Peters wrote:
> > Wing folding:
> > Inboard or outboard of the elbow?
> > You can probably guess what I would say, but I'll
> weigh in after others have spoken.
> > David Peters
> > St. Louis