About forward slips

Mxsmanic writes:
gatt writes:
I was wondering what was absorbing the kinetic energy of the aircraft,
since normally a loss of altitude requires an increase in airspeed, if
nothing absorbs the energy.

Drag. In a slip you are sliding sideways through the air. This means
you are trying to push the side of the fuselage through the air. It
is not designed to be very aerodynamic going sideways, so when you do
this you will create all sorts of extra drag which the plane does not
normally have.

Chris

In article ,
Christopher Brian Colohan wrote:

Mxsmanic writes:
gatt writes:
I was wondering what was absorbing the kinetic energy of the aircraft,
since normally a loss of altitude requires an increase in airspeed, if
nothing absorbs the energy.

Drag. In a slip you are sliding sideways through the air. This means
you are trying to push the side of the fuselage through the air. It
is not designed to be very aerodynamic going sideways, so when you do
this you will create all sorts of extra drag which the plane does not
normally have.

And lift!

Christopher Brian Colohan writes:

Drag. In a slip you are sliding sideways through the air. This means
you are trying to push the side of the fuselage through the air. It
is not designed to be very aerodynamic going sideways, so when you do
this you will create all sorts of extra drag which the plane does not
normally have.

That explains it. Thanks. Slips may come in handy for me since I
never seem to be able to roll out to final with any reasonable
alignment with the runway. I suppose in real life I could look out a
side window and estimate my alignment better, but somehow I think it
might still be difficult for me. The other legs work out okay; I'm
flying nice rounded rectangles now (MSFS lets you analyze your ground
track and altitude profiles, so you can easily check your work).

--
Transpose mxsmanic and gmail to reach me by e-mail.

"Mxsmanic" wrote in message
...

Three basic rules about slipping on final are 1) Don't stall, 2) Don't
stall
and 3) Don't stall.

And how do I avoid stalls while slipping?

Stay a few knots above stall speed and don't make any abrupt control
changes. If you're in a high performance airplane and have to go around or
something, don't throw in full power and torque yourself over.

-c

Make sure you have the flaps fully deployed when you do it....

wrote in message
ups.com...
Make sure you have the flaps fully deployed when you do it....


Especially if it is a C-172N with the placard that says "Avoid Slips with
the Flaps Extended" while on a checkride... :-)

Especially if it is a C-172N with the placard that says "Avoid Slips with
the Flaps Extended" while on a checkride... :-)

Interesting...the earlier models omitted the checkride reference.
Fortunately, cross wind correction seemed to be permitted... :-)

Peter

Mxsmanic wrote:
What's the proper procedure to execute a forward slip, how should the
aircraft be expected to react when it is performed, and what are the
main uses of the forward slip? And why is it called a _forward_ slip?

http://en.wikipedia.org/wiki/Slip_(aerodynamic)

Somebody said that MSFS cannot simulate forward slips correctly. What
is missing in the simulation?

I've read it has something to do with its inability to calculate the
lift, or perhaps just the default aircraft don't handle it. However,
I believe some third party aircraft explicity address the slip issue.
What's that C172 realistic addon? Drat. I've forgotten, but it's a
far better 172 than the stock one.

Note that, by default, MSFS is configured to link the rudder to the
ailerons. All turns are forced into coordinated turns, and there's no
independent rudder control.

That's a major reason why simmers who don't own rudder pedals get
little of the realism that the sim can sometimes offer.

Kev

wrote in message
ups.com...

Mxsmanic wrote:
What's the proper procedure to execute a forward slip, how should the
aircraft be expected to react when it is performed, and what are the
main uses of the forward slip? And why is it called a _forward_ slip?

http://en.wikipedia.org/wiki/Slip_(aerodynamic)

Somebody said that MSFS cannot simulate forward slips correctly. What
is missing in the simulation?

I've read it has something to do with its inability to calculate the
lift, or perhaps just the default aircraft don't handle it. However,
I believe some third party aircraft explicity address the slip issue.
What's that C172 realistic addon? Drat. I've forgotten, but it's a
far better 172 than the stock one.

Note that, by default, MSFS is configured to link the rudder to the
ailerons. All turns are forced into coordinated turns, and there's no
independent rudder control.

Not true. You can deselect "Auto Rudder" and have independant rudder
control.

I believe the add-on 172 you are trying to think of is this one from Flight
1:

http://www.flight1.com/products.asp?product=esd172

That's a major reason why simmers who don't own rudder pedals get little
of the realism that the sim can sometimes offer.

Now that's a true statement.

Jay B

Jay Beckman wrote:
I believe the add-on 172 you are trying to think of is this one from Flight 1
http://www.flight1.com/products.asp?product=esd172

Thanks for that, but I finally recalled the one I was thinking of: the
"RealAir 172SP". It can do slips and spins, and felt pretty realistic
compared to the stock one.

Kev