On Thu, 23 Sep 2010 13:38:17 -0700, Bob wrote:

It is the FLAPPING WING that makes it a record. Propeller driven craft
are much easier to do of course and can take off and fly long distances.

Fairly minimal flap amplitude.

One thing I'm genuinely curious about: given the flapping amplitude, why
is the pylon so high?

Are you saying 19 seconds at 25 KPH is all ground effect? Surely you
might agree that even in ground effect one loses height and speed at
some rate? Or have you discovered perpetual gliding? ;-)

No, of course not, just that I don't recall other MPA attempts claiming
records until the Cramer Prize had been collected.

Subsidiary question which others have asked in other places: what is the
glide performance without flapping? The aircraft looks as it it should be
a fairly efficient glider, so I'm curious about its sinking speed and
glide ratio.

And it was uphill on the field. I saw the late fall flights last year in
person. I guess the data will have to speak for itself.

What data? Apart from a couple of videos, neither of which are said to be
of the record attempt, I've seen no other information. A link to it would
be very much appreciated. So would a description of the flapping mechanism


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martin@ | Martin Gregorie
gregorie. | Essex, UK
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