Airplane Pilot's As Physicists

Dudley Henriques wrote in
:

Bertie the Bunyip wrote:
"CWatters" wrote in
:

"Mxsmanic" wrote in message
...
The essential feature of an airfoil is that it twists the flow of
air as
it
passes (or as the airfoil passes through still air, which is
equivalent,
and
that's how it works in airplanes). The air is accelerated
downward, and
this
engenders an equal and opposite force that is lift.
Nope. That wouldn't explain how wing sections for tailless planes
work. The sections for those curve up towards the trailing edge. The
leading edge produces lift but the trailing edge produces a
_downward_ force to counter the pitching moment. Example section...

http://www.desktopaero.com/appliedae...mages/image13_
43.
gif





Good point.

The porblem with this guy is (and it's just one guy with a handful of
sockpuppets) is that he ses some discrepencies in how bernoulli is
explained and has concluded that it must be incorrect since there is
"disagreement amongst the experts"

A good analogy here would be the eeedjit creationists who grasp at
the straws presented by the minor scuffles occuring within the
evolutionary sciences.


Bertie

This is exactly how I see this as well. This character and his puppets
are playing out a conversation with themselves (one person) designed
to capitalize on the few simple misconceptions concerning Bernoulli
that are common knowledge among the professional aviation community
and have been "corrected" years ago.
Unfortunately for this forum, there are still a few old textbooks
hanging around out there reflecting these misconceptions. This,
coupled with the fact that there are individual pilots out here (from
the GA community mostly) who apparently lack the formal physics
knowledge to take on someone whose sole intent is to discredit them by
cleverly using the remaining confusion in the community concerning
Bernoulli against them. The REAL rub in this situation is that the
idiot doing this, from what I have seen in his posting, has very
little knowledge HIMSELF about the lift issue and is totally wrong in
critical areas of his argument. It's an unfortunate situation designed
by a person who seems to pleasure himself by what he's doing.
Personally I wouldn't give this idiot the time of day. His
understanding of Bernoulli is much worse than those with whom he has
engaged. Those who are on to him he avoids, only taking glancing shots
at them knowing he won't be answered directly.
It's a shame really....but what the hell, it's Usenet!!
:-)))

Absolutely. Actually, trolling around the net, it's a bit surprising the
amount of info out there that is so intent on adressing the deficienceis
in the way Bernoulli was described that they appear to be trying to say
that he was wrong. Some of them actually say this flatly.
Bernoulli works and NASA know it.
Their website appears to be disowning him ot the uninitiated, but at the
end of the day, if you need to fly on the edge, there are several colors
you have to paint on he inside of your skull to get your hands to
continuousl select the Alpha required to get th eflight path you want

Bertie