why my plane stalls

Greg Farris wrote:
Please don't call it a plane.
Readers here may take it badly, present company included.


guys, give the man a break; he is apparently trying to
learn something, albeit from a rather original angle,
and his question is not (IMHO and all that) out of place
in this newsgroup.

I.e., put yourself in his shoes, and imagine that you would
like to learn how, say, a submarine works (I know nothing
about submarines, so that's what I picked to illustrate my
point); playing around with a submarine sim would not be
the silliest way to get started, would it? actually he doesn't
just 'play around with', but actually went further and looked
at the code and the physics involved, which is quite a bit
smarter. Then, the next step of asking questions to submariners
sounds reasonable to me; now, let's say that all submariners
newsgroups happen to be in Russian (a language which I don't
master, hence the choice to illustrate my point, not just
out of cheap irony), chances are that I would not make the
best choice of words.

let's not scare away a potential new recruit! :-)

--Sylvain

If your yolk is set up incorrectly, you're bound to be scrambled.

Seth

wrote in message
oups.com...

If you're on a simulator, maybe your joystick or yolk is set up
incorrectly? (pitch reversed).

As anyone on this group will tell you in an instant, stalling is not
about pitch *per se*, but angle of attack. That said, one pulls up to
case a stall, and pushes down to get out of one -- unless you're
inverted, or your controls are rigged backwards (which, unfortunately,
has been known to happen).


-- dave j

Grandss wrote:
Ok if someone could explain me that, I will be very happy

I have a simulator, if i pitch up OK, but if I pitch down, my plane
stalls and i don't understand why.

thank's

"Grandss" grandss@nospam wrote in message ...
--Gary


Hi,

plane stalls really when i pitch down.
I'm not sure to know exactly how it have been determined but i try to
explain.
A plane stalls in my case if liftcoefficent for a cambered airfoil with a
plan trailing edge flap is equals to zero.
Flaps to calc. liftcoefficient are landing flaps and ailerons.


At a low enough angle of atack (angle between the wing and the air flow)
lift will go to zero - is this what's happening?

At a high angle of atack (pitch up) when a wing "stalls" the lift is reduced
but does not generally go to zero while drag increases a lot.

--
Geoff
the sea hawk at wow way d0t com
remove spaces and make the obvious substitutions to reply by mail
Spell checking is left as an excercise for the reader.

L'avion cale quand l'angle d'attaque est trop haut -- c'est-à-dire, quand le
nez monte et l'avion ralentit à la vitesse de stalle, au sujet de 90kph pour
la plupart des avions de moteur simple. La mise du nez vers le bas ne lui
fait pas la stalle: elle fait l'avion accélèrent par l'air. Voyez pour
l'explication http://pierre.rondel.free.fr/portance.htm

Seth
N8100R

"Grandss" grandss@nospam wrote in message ...
Ok if someone could explain me that, I will be very happy

I have a simulator, if i pitch up OK, but if I pitch down, my plane stalls
and i don't understand why.

thank's

Damn, that's my first USENET spelling snip in... well, a little while.

-- dave j

Grandss wrote:

Ok if someone could explain me that, I will be very happy

I have a simulator, if i pitch up OK, but if I pitch down, my plane
stalls and i don't understand why.

thank's

Your upside down, sky is blue, grass is green... Unless your over water
and then everything can be blue...

In article , says...


Greg Farris wrote:
Please don't call it a plane.
Readers here may take it badly, present company included.


guys, give the man a break; he is apparently trying to
learn something, albeit from a rather original angle,
and his question is not (IMHO and all that) out of place
in this newsgroup.

I.e., put yourself in his shoes, and imagine that you would
like to learn how, say, a submarine works (I know nothing
about submarines, so that's what I picked to illustrate my
point); playing around with a submarine sim would not be
the silliest way to get started, would it? actually he doesn't
just 'play around with', but actually went further and looked
at the code and the physics involved, which is quite a bit
smarter. Then, the next step of asking questions to submariners
sounds reasonable to me; now, let's say that all submariners
newsgroups happen to be in Russian (a language which I don't
master, hence the choice to illustrate my point, not just
out of cheap irony), chances are that I would not make the
best choice of words.



What goes down must come up . . .

Except of course Russian submarines ;-)

In article . com,
says...



Damn, that's my first USENET spelling snip in... well, a little while.

-- dave j


How to make it climb : Set the mixer on HIGH and put the yolk in your
lap!

the wings are installed upside down?

"Andrew Gideon" wrote in message
online.com...
Grandss wrote:

I have a simulator, if i pitch up OK, but if I pitch down, my plane
stalls and i don't understand why.

You're inverted.

- Andrew

a écrit :
the wings are installed upside down?

"Andrew Gideon" wrote in message
online.com...

Grandss wrote:


I have a simulator, if i pitch up OK, but if I pitch down, my plane
stalls and i don't understand why.

You're inverted.

- Andrew




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