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Crab, slips, and crossed controls



 
 
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  #1  
Old September 23rd 08, 08:35 AM posted to rec.aviation.piloting
Stefan
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Posts: 578
Default Crab, slips, and crossed controls

Mick schrieb:

| Glider pilots use them on occasion for rapid descent and they are expected
| to demonstrate proficiency in them on the practical exam.


How do you maintain alignment with the tow plane?


When *descending*? )

BTW, some glider pilots use short slips to take up slack from the tow
rope, should there happen to occur some in turbulence. Most prefer the
use of airbrakes, though.
  #2  
Old September 23rd 08, 12:33 PM posted to rec.aviation.piloting
Bertie the Bunyip[_24_]
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Posts: 2,969
Default Crab, slips, and crossed controls

Stefan wrote in
:

Mick schrieb:

| Glider pilots use them on occasion for rapid descent and they are
| expected to demonstrate proficiency in them on the practical exam.


How do you maintain alignment with the tow plane?


When *descending*? )

BTW, some glider pilots use short slips to take up slack from the tow
rope, should there happen to occur some in turbulence. Most prefer the
use of airbrakes, though.


No, they don;t fjukkktard.


They skid.



Bertie
  #3  
Old September 25th 08, 04:45 PM posted to rec.aviation.piloting
Mick[_2_]
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Posts: 584
Default Crab, slips, and crossed controls


"Bertie the Bunyip" wrote in message
...
| Stefan wrote in
| :
|
| Mick schrieb:
|
| | Glider pilots use them on occasion for rapid descent and they are
| | expected to demonstrate proficiency in them on the practical exam.
|
| How do you maintain alignment with the tow plane?
|
| When *descending*? )
|
| BTW, some glider pilots use short slips to take up slack from the tow
| rope, should there happen to occur some in turbulence. Most prefer the
| use of airbrakes, though.
|
|
| No, they don;t fjukkktard.
|
|
| They skid.
|
|
|
| Bertie

You're a dumb ass. I seriously doubt you have ever flown a sailplane.


  #4  
Old September 26th 08, 03:48 AM posted to soc.culture.jewish,rec.aviation.piloting,alt.usenet.kooks
Bertie the Bunyip[_28_]
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Posts: 481
Default Crab, slips, and crossed controls

"Mick" #$$#@%%%.^^^ wrote in :


"Bertie the Bunyip" wrote in message
...
| Stefan wrote in
| :
|
| Mick schrieb:
|
| | Glider pilots use them on occasion for rapid descent and they are
| | expected to demonstrate proficiency in them on the practical exam.
|
| How do you maintain alignment with the tow plane?
|
| When *descending*? )
|
| BTW, some glider pilots use short slips to take up slack from the tow
| rope, should there happen to occur some in turbulence. Most prefer the
| use of airbrakes, though.
|
|
| No, they don;t fjukkktard.
|
|
| They skid.
|
|
|
| Bertie

You're a dumb ass. I seriously doubt you have ever flown a sailplane.


I know you do.


Bertie
  #5  
Old September 23rd 08, 06:12 PM posted to rec.aviation.piloting
Vaughn Simon
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Posts: 735
Default Crab, slips, and crossed controls


"Stefan" wrote in message
...
BTW, some glider pilots use short slips to take up slack from the tow rope,
should there happen to occur some in turbulence. Most prefer the use of
airbrakes, though.


I never use the spoilers/airbrakes to take up slack, (though really slippery
sailplanes will sometimes start a tow while holding just a tad of spoiler).
That much control authority is simply not necessary. A glider tow is a very
delicate dance, it takes timing and (usually) tiny control inputs. Usually a
little climb will do the job to take up the slack. If you screwed up and got a
really bad slack rope, you push rudder a bit to yaw, which increases drag a bit
but perhaps more importantly puts your tow hook off center from the CG. Then,
when the inevitable 'snatch" happens, some of the excess energy goes into
pulling the nose around rather than suddenly accelerating the glider and causing
the rope to go slack yet again.

Vaughn



  #6  
Old September 23rd 08, 10:16 PM posted to rec.aviation.piloting
george
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Posts: 803
Default Crab, slips, and crossed controls

On Sep 24, 5:12*am, "Vaughn Simon"
wrote:

* *I never use the spoilers/airbrakes to take up slack, (though really slippery
sailplanes will sometimes start a tow while holding just a tad of spoiler).
That much control authority is simply not necessary. *A glider tow is a very
delicate dance, it takes timing and (usually) tiny control inputs. *Usually a
little climb will do the job to take up the slack. *If you screwed up and got a
really bad slack rope, you push rudder a bit to yaw, which increases drag a bit
but perhaps more importantly puts your tow hook off center from the CG. *Then,
when the inevitable 'snatch" happens, some of the excess energy goes into
pulling the nose around rather than suddenly accelerating the glider and causing
the rope to go slack yet again.

The bit where you see the towplane 'yoing' into the atmosphere and you
know that you're going to hit that same lift in a second or two with
the towplane now almost above you :-)
Makes life interesting

  #7  
Old September 23rd 08, 11:20 PM posted to rec.aviation.piloting
Kloudy via AviationKB.com
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Posts: 376
Default Crab, slips, and crossed controls

Vaughn Simon wrote:
you push rudder a bit to yaw, which increases drag a bit
but perhaps more importantly puts your tow hook off center from the CG.


unless ya have a CG hook like me.

Which doesn't mean the slip doesn't help even with a CG hook. I use either
method, except the climb method.
I don't like having that much more potential energy to have to relinquish on
the rope.

We all have our little dances on tow.

--
Message posted via http://www.aviationkb.com

  #8  
Old September 23rd 08, 11:35 PM posted to rec.aviation.piloting
Stefan
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Posts: 578
Default Crab, slips, and crossed controls

Vaughn Simon schrieb:

If you screwed up and got a really bad slack rope,


I'm not sure I'd call a slack rope while towing through a rotor a screw
up. As always, it all depends.
 




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