Flying Technique Question of the Day

Tailored towards the newbies:

On final, assuming there is a crosswind and you need to forward or side slip,
does it make a difference which wing is held down, and why?


Jim Vincent
CFIG
N483SZ

OK, I'll bite -- the down wing will result in a turn into the wind,
resulting in a runway heading path down final. Is a crab in the same
situation preffered/unpreffered/dealer's choice?

BJ

Jim Vincent wrote:

Tailored towards the newbies:

On final, assuming there is a crosswind and you need to forward or side slip,
does it make a difference which wing is held down, and why?

Jim Vincent
CFIG
N483SZ

I've always understood that in a stiff crosswind the upwind wing is lowered
in a side-slip in order to 1. help counteract the crosswind, and 2. prevent
a rollover close to the ground.

As for forward slips, regardless of the crosswind, I personally prefer to
lower the wing on the inside of my approach, forcing me to apply rudder
opposite that used on my turn onto final - helping to prevent a spin
condition at low altitude...

-Rob

"Bob Johnson" wrote in message
...
OK, I'll bite -- the down wing will result in a turn into the wind,
resulting in a runway heading path down final. Is a crab in the same
situation preffered/unpreffered/dealer's choice?

BJ

Jim Vincent wrote:

Tailored towards the newbies:

On final, assuming there is a crosswind and you need to forward or side
slip,
does it make a difference which wing is held down, and why?

Jim Vincent
CFIG
N483SZ

Forward slip ....

Whasat?

I know what a sideslip is but I've never understood this ( American? ) term.
Can't seem to find it in the BGA instructors manual either.

Ian

"tango4" wrote in message ...
Forward slip ....

Whasat?

I know what a sideslip is but I've never understood this ( American? ) term.
Can't seem to find it in the BGA instructors manual either.

Ian


Don't bother with it; the glider doesn't know the difference. It is a
US mental exercise based on where you are trying to go. A pilot in
the back seat can't tell which one it is until he sees where you end
up.

Nyal Williams wrote:

"tango4" wrote in message ...
Forward slip ....

Whasat?

I know what a sideslip is but I've never understood this ( American? ) term.
Can't seem to find it in the BGA instructors manual either.

Ian

Don't bother with it; the glider doesn't know the difference. It is a
US mental exercise based on where you are trying to go. A pilot in
the back seat can't tell which one it is until he sees where you end
up.

Most of the discussion is correct, the distinction in terminology and is based on
the intent of the pilot.
Having to fly over here in the US, and being asked to do them on biannual flight reviews, I remember
it this way:

A side-slip is when you're flying (ie pointing) forward.
A forward-slip is when you're flying sideways.

Simple and logical ..... NOT.

The weather more than makes up for these minor inconveniences.

Chris

wrote:

I hate to admit it, but I don't know the
difference between a side slip and a
forward slip. Please walk me through
exactly what I'm doing with the stick and
rudder on each one and where the nose
is pointed.

See Chapter 14 of the SSA Soaring Flight Manual (pp 14-8 - 14-10) -- the two
maneuvers are fully detailed there, and there is also an excellent figure that
illustrates the difference. I am NOT a CFIG, so I urge you to read the
aforementioned paragraphs and/or talk to a CFIG. But VERY briefly, my
understanding is as follows:

Side Slip (for crosswind control): Lower upwind wing, use enough opposite
rudder to keep glider from banking in direction of the wing. Longitudinal axis
is parallel to the straight flight path.

Forward Slip (steepens angle of descent, used to lose excess altitude): Lower
wing, use oppposite rudder to point nose away from the glide path exposing the
front side of the glider to the oncoming air to create more drag (careful to
maintain not increase airspeed and remember ASI will not be correct). Slip
*toward* crosswind if one is present. Longitudinal axis is NOT parallel to the
flight path, but the flight path is straight. Resume normal flight, of course,
before landing (I'm sure you know that, just CMA!!)!

--Shirley

Shirley wrote in message
...
wrote:

I hate to admit it, but I don't know the
difference between a side slip and a
forward slip. Please walk me through
exactly what I'm doing with the stick and
rudder on each one and where the nose
is pointed.

See Chapter 14 of the SSA Soaring Flight Manual (pp 14-8 - 14-10) -- the
two
maneuvers are fully detailed there, and there is also an excellent figure
that
illustrates the difference. I am NOT a CFIG, so I urge you to read the
aforementioned paragraphs and/or talk to a CFIG. But VERY briefly, my
understanding is as follows:

Seems to me. in English, this is what we call laying off the drift.

Side Slip (for crosswind control): Lower upwind wing, use enough opposite
rudder to keep glider from banking in direction of the wing. Longitudinal
axis
is parallel to the straight flight path.

Seems to me. in English, this is what we call laying off the drift.

Forward Slip (steepens angle of descent, used to lose excess altitude):
Lower
wing, use oppposite rudder to point nose away from the glide path exposing
the
front side of the glider to the oncoming air to create more drag (careful
to
maintain not increase airspeed and remember ASI will not be correct). Slip
*toward* crosswind if one is present. Longitudinal axis is NOT parallel to
the
flight path, but the flight path is straight. Resume normal flight, of
course,
before landing (I'm sure you know that, just CMA!!)!

Whereas this is known as the side slip.

Sounds as if the Americans are trying to make something
simple.....complicated


--Shirley

"JJ Sinclair" wrote in message
...
Yo, Judy & Shirley,
I hate to admit it, but I don't know the difference between a side slip
and a
forward slip. Please walk me through exactly what I'm doing with the stick
and
rudder on each one and where the nose is pointed. When I have used what I
called a slip, I was turning a left final, just kept the left wing down,
shoved
in a bunch of right rudder. The nose went right and I added a little more
rudder if I wanted to make the ship move to the right or took some rudder
out
if I wanted to move left.
Thanks,
JJ Sinclair

If you were flying such that you could not see the ground how would you know
if you were doing a side slip or a forward slip??
Possible answer: The difference between a side slip and a forward slip is
ground track only.

Duane

1. Yes!
2. 'cause yur landin'!

Cheers!

Jim Vincent wrote in article
...
Tailored towards the newbies:

On final, assuming there is a crosswind and you need to forward or side
slip,
does it make a difference which wing is held down, and why?


Jim Vincent
CFIG
N483SZ