Plane steers to the left in FS 2002

P-A

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Jan 9, 2002, 1:28:36 PM1/9/02

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My Flight Simulator 2002 worked al right until yesterday when suddenly this
"yaw" tendens appeared. When I am releasing the breaks, one of the
instruments (I have not yet learned it's name) turns, and the aircraft turns
as well. I have to apply the opposite yaw-manuver to hold the plane on the
runway (not so easy).
Anybody knows what's up? Please help

P-A

crware

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Jan 9, 2002, 4:38:00 PM1/9/02

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What aircraft type is it? What wind have you set? Have you calibrated your
joystick?
All of these can have an effect, especially in a light aircraft.
CWare

"P-A" <kris...@telia.com> wrote in message
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guptasa1

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Jan 9, 2002, 7:27:20 PM1/9/02

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Heya!
Well, I'm too have experienced this, but I thought it might be a
characteristic of the plane (realism is set as high as it goes). Mine
continuously pulls to the left as well, and some rudder is necessary to keep
it stable until take-off. After take off I no longer experience any of
this, and the type of plane it happens to me in is a Cessna 172. I really
can't say if it's in the other since this is the plane I'm using the most
since I'm just learning. I'm using a Sidewinder Force Feedback 2, and the
default wind. I'm assuming the person who posted this is experiencing the
same thing? I'm curious what joystick they are using too, but I've
experienced this at several different airports.

guptasa

"crware" <crw...@ntlworld.com> wrote in message
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guptasa1

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Jan 10, 2002, 1:27:53 AM1/10/02

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Quick update:
Tried a little experiment and turned realism way down. Then I got in a
Cessna and there was no left pull at all. So it looks as if it is related
to realism in some way. Can anyone tell us if real Cessna's do this and why
just for curiosity sake?

Thanks,
guptasa1

"guptasa1" <gupt...@hotmail.com> wrote in message
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> Heya!
> Well, I too have experienced this, but I thought it might be a

> characteristic of the plane (realism is set as high as it goes). Mine
> continuously pulls to the left as well, and some rudder is necessary to
keep

> it stable until takeoff. After takeoff I no longer experience any of

> this, and the type of plane it happens to me in is a Cessna 172. I really

> can't say if it's in the others since this is the plane I'm using the most

> since I'm just learning. I'm using a Sidewinder Force Feedback 2, and the
> default wind. I'm assuming the person who posted this is experiencing the
> same thing? I'm curious what joystick they are using too, but I've
> experienced this at several different airports.
>

> guptasa1
>

Steven Woo

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Jan 10, 2002, 2:22:42 AM1/10/02

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Engine torque. One has to constantly feather the rudder to adjust for
this effect in single engine prop planes on the ground. I would have
thought this was discussed in the FS 2002 tutorials. When I fly some
of the WW2 flight simulators on full realism it impresses upon me the
skill of the WW2 pilots ( of course, we are lacking most of the
feedback but still... )
On Thu, 10 Jan 2002 06:27:53 GMT, "guptasa1" <gupt...@hotmail.com>
wrote:

Ted Burgmaier

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Jan 10, 2002, 3:12:48 AM1/10/02

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Hi all,
With realism turned up single engine planes model the effect
of engine and prop torque. You need to gently use right rudder
to offset it until the speed picks up enough that the nomal airflow
over the flight surfaces keeps it mostly at bay.
Some of the twin engines also do it unless they have counter
rotating props.
It is a realistic effect, my radio control planes do it too
Hope that helps
Ted

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Ron

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Jan 10, 2002, 8:13:04 AM1/10/02

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I have MS FF pro 1 stick.
I have the same, like you assumed it was a realism characteristic, like
torque from the prop or something like that.
most planes do this. Some I've downloaded do not. (could be it's not in
their programmed characteristics)
It's pretty easy to slightly twist the rudder on my MS FF (3d) stick to
compensate. I can release it after I've
left the runway.

I recall reading something about planes having this due to torque from the
engine or something like that... the way the prop is spinning? I dunno what
it was, but many sims have this.

"guptasa1" <gupt...@hotmail.com> wrote in message
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guptasa1

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Jan 10, 2002, 9:57:28 AM1/10/02

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I've only been through the second tutorial so far, so it may well discuss
it. Just haven't gotten there yet. :o) Thanks for the explanation!

Shaun

"Steven Woo" <swoo.please.remov...@pobox.com> wrote in message
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guptasa1

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Jan 10, 2002, 9:59:48 AM1/10/02

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Thanks a lot for the explanation!

Shaun

"Ted Burgmaier" <ted...@montana.com> wrote in message
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guptasa1

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Jan 10, 2002, 10:01:45 AM1/10/02

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Yup! Learn something new every day! Thanks!

Shaun

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P-A

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Jan 10, 2002, 4:44:11 PM1/10/02

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Thank you everybody for all answers in this issue. I have now learnt how to
reduce the p-factor (realism) to achieve straight forward steering.
P-A <kris...@telia.com> skrev i
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Mediaone Talon

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Jan 11, 2002, 5:03:09 PM1/11/02

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What you are dealing with, as I am assuming that you have realism turned up
and that this is a propeller (probably single engine) plane is called "P"
factor. It is noted most frequently in single engine aircraft at lower
speeds and high power. The propeller causes a sort of "cork screw" effect of
the wind forced around and along the length of the fuselage in a spiral
manner impacting the left side of the stabilizer (tail) of the plane pushing
the nose of the plane. You will need to apply a slight opposite rudder to
compensate. Like they say "as real as it gets."

Talon

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Simon Robbins

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Jan 12, 2002, 6:59:40 AM1/12/02

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Steven Woo <swoo.please.remov...@pobox.com> wrote in message
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>

> Engine torque. One has to constantly feather the rudder to adjust for
> this effect in single engine prop planes on the ground.

It's not engine torque, it's called prop slipstream. This is how my flight
training manual describes it:

"The mass of air thrust backwards by the propeller is called the slipstream.
It is roughly the size of a cylinder of the same diameter as the propeller.
The velocity of the slipstream is greater than that at which the aircraft is
travelling through the air. This means that the velocity of the air flowing
over those parts of the aircraft in the slipstream would be much more than
that of the airflow over parts not in the slipstream. The propeller imparts
a rotary motion to the slipstream in the same direction as the propeller is
turning. The results is that the slipstream strikes only one side of the
aircrfat surfaces, such as the fin and rudder, and affects the directional
and lateral balance of the aircraft for normal cruising flight. This balance
is upset when the engine power is changed above or below cruise power
settings."

You'll notive that the plane in FS2002 will yaw if you suddenly add or
reduce power when straight and level. This is the same effect. And yes,
C-172's do require a *lot* of rudder input during takeoff!

Si