The F-16 control stick?

On Sat, 20 Sep 2003 15:53:37 GMT, "Bill Silvey"
wrote:

"Christopher" wrote in message

Does it move when say when the pilot wants to climb, or does it have
pressure sensors on a rigid stick so the stick can inform the
computers the pilots hand is pressing on the front of the stick and he
wants the F-16 to climb?

Initially it was a force-sensing stick, but later they added some "play" to
it.


By *play* how many degrees can the pilot now move it?



Christopher
+++++++++++++++++++++++++
"Kites rise highest against
the wind - not with it."
Winston Churchill

Does it move when say when the pilot wants to climb, or does it have
pressure sensors on a rigid stick so the stick can inform the
computers the pilots hand is pressing on the front of the stick and he
wants the F-16 to climb?


Both. However, the purpose of the movement is only to provide artificial feel
or feedback to the pilot. I read in the flight manual (a while back) that the
stick moves either 1/4 inch or 1/8 inch longitudinally and laterally. I don't
know how many degrees of pitch and roll movement about the translation point
this equates to. For all intents and purposes, the stick is rigid. I think
that General Dynamics incorporated this feature into the second block of
F-16A/B aircraft.





Kurt Todoroff


Markets, not mandates and mob rule.
Consent, not compulsion.

Remove "DELETEME" from my address to reply

http://www.codeonemagazine.com/archi...ct_86/cockpit/

Explains it better than I can...

Ross "Roscoe" Dillon
USAF Flight Tester
(B-2, F-16, F-15, F-5, T-37, T-38, C-5, QF-106)



On 20 Sep 2003 18:54:19 GMT, ELETEME (Kurt R.
Todoroff) wrote:

Does it move when say when the pilot wants to climb, or does it have
pressure sensors on a rigid stick so the stick can inform the
computers the pilots hand is pressing on the front of the stick and he
wants the F-16 to climb?


Both. However, the purpose of the movement is only to provide artificial feel
or feedback to the pilot. I read in the flight manual (a while back) that the
stick moves either 1/4 inch or 1/8 inch longitudinally and laterally. I don't
know how many degrees of pitch and roll movement about the translation point
this equates to. For all intents and purposes, the stick is rigid. I think
that General Dynamics incorporated this feature into the second block of
F-16A/B aircraft.





Kurt Todoroff


Markets, not mandates and mob rule.
Consent, not compulsion.

Remove "DELETEME" from my address to reply

Thanks for the thoughtful post, Ross. Joe Bill's article was fascinating!

Earl
________________________

Jets Press Publishing
By Mechanics, for everyone -- about Jets
http://www.jjetspress.com




"Air Force Jayhawk" wrote in message
...
http://www.codeonemagazine.com/archi...ct_86/cockpit/

Explains it better than I can...

Ross "Roscoe" Dillon
USAF Flight Tester
(B-2, F-16, F-15, F-5, T-37, T-38, C-5, QF-106)



On 20 Sep 2003 18:54:19 GMT, ELETEME (Kurt R.
Todoroff) wrote:

Does it move when say when the pilot wants to climb, or does it have
pressure sensors on a rigid stick so the stick can inform the
computers the pilots hand is pressing on the front of the stick and
he
wants the F-16 to climb?


Both. However, the purpose of the movement is only to provide artificial
feel
or feedback to the pilot. I read in the flight manual (a while back)
that the
stick moves either 1/4 inch or 1/8 inch longitudinally and laterally. I
don't
know how many degrees of pitch and roll movement about the translation
point
this equates to. For all intents and purposes, the stick is rigid. I
think
that General Dynamics incorporated this feature into the second block of
F-16A/B aircraft.





Kurt Todoroff


Markets, not mandates and mob rule.
Consent, not compulsion.

Remove "DELETEME" from my address to reply

On Sun, 21 Sep 2003 04:59:59 GMT, "Earl Heron"
wrote:

Thanks for the thoughtful post, Ross. Joe Bill's article was fascinating!


Yes, it's very informative, thanks.








"Air Force Jayhawk" wrote in message
.. .
http://www.codeonemagazine.com/archi...ct_86/cockpit/

Explains it better than I can...

Ross "Roscoe" Dillon
USAF Flight Tester
(B-2, F-16, F-15, F-5, T-37, T-38, C-5, QF-106)



On 20 Sep 2003 18:54:19 GMT, ELETEME (Kurt R.
Todoroff) wrote:

Does it move when say when the pilot wants to climb, or does it have
pressure sensors on a rigid stick so the stick can inform the
computers the pilots hand is pressing on the front of the stick and
he
wants the F-16 to climb?


Both. However, the purpose of the movement is only to provide artificial
feel
or feedback to the pilot. I read in the flight manual (a while back)
that the
stick moves either 1/4 inch or 1/8 inch longitudinally and laterally. I
don't
know how many degrees of pitch and roll movement about the translation
point
this equates to. For all intents and purposes, the stick is rigid. I
think
that General Dynamics incorporated this feature into the second block of
F-16A/B aircraft.





Kurt Todoroff


Markets, not mandates and mob rule.
Consent, not compulsion.

Remove "DELETEME" from my address to reply




Christopher
+++++++++++++++++++++++++
"Kites rise highest against
the wind - not with it."
Winston Churchill

It is also interesting to note that the amount of force applied to, or
deflection of, the control stick does not translate into xx degrees of
control surface deflection. The stick inputs are seen as rate inputs,
not deflections, so when you want to roll faster you apply more force
to the stick and the control surfaces deflect whatever amount it takes
to achieve that rate. This is also the reason you don't have to tweak
the stick in the other direction to stop a roll or pitch rate. When
you release force on the stick, the control system senses a zero rate
input and the roll (or pitch) stops right then and there. Hope that
makes sense.

GregD

On 21 Sep 2003 11:23:49 -0700, (GregD) wrote:

It is also interesting to note that the amount of force applied to, or
deflection of, the control stick does not translate into xx degrees of
control surface deflection. The stick inputs are seen as rate inputs,
not deflections, so when you want to roll faster you apply more force
to the stick and the control surfaces deflect whatever amount it takes
to achieve that rate. This is also the reason you don't have to tweak
the stick in the other direction to stop a roll or pitch rate. When
you release force on the stick, the control system senses a zero rate
input and the roll (or pitch) stops right then and there. Hope that
makes sense.

Yes, very much. Thanks.



Christopher
+++++++++++++++++++++++++
"Kites rise highest against
the wind - not with it."
Winston Churchill

All are quite welcome

AFJ

On Sun, 21 Sep 2003 09:15:52 GMT, (Christopher)
wrote:

On Sun, 21 Sep 2003 04:59:59 GMT, "Earl Heron"
wrote:

Thanks for the thoughtful post, Ross. Joe Bill's article was fascinating!


Yes, it's very informative, thanks.



"Air Force Jayhawk" wrote in message
. ..
http://www.codeonemagazine.com/archi...ct_86/cockpit/

Explains it better than I can...

Ross "Roscoe" Dillon
USAF Flight Tester
(B-2, F-16, F-15, F-5, T-37, T-38, C-5, QF-106)



On 20 Sep 2003 18:54:19 GMT, ELETEME (Kurt R.
Todoroff) wrote:

Does it move when say when the pilot wants to climb, or does it have
pressure sensors on a rigid stick so the stick can inform the
computers the pilots hand is pressing on the front of the stick and
he
wants the F-16 to climb?


Both. However, the purpose of the movement is only to provide artificial
feel
or feedback to the pilot. I read in the flight manual (a while back)
that the
stick moves either 1/4 inch or 1/8 inch longitudinally and laterally. I
don't
know how many degrees of pitch and roll movement about the translation
point
this equates to. For all intents and purposes, the stick is rigid. I
think
that General Dynamics incorporated this feature into the second block of
F-16A/B aircraft.





Kurt Todoroff


Markets, not mandates and mob rule.
Consent, not compulsion.

Remove "DELETEME" from my address to reply




Christopher
+++++++++++++++++++++++++
"Kites rise highest against
the wind - not with it."
Winston Churchill

"Christopher" wrote in message
...
Initially it was a force-sensing stick, but later they added some "play"
to
it.


By *play* how many degrees can the pilot now move it?


Check out http://www.ultra-msi.com/mini.html, a supplier to the aerospace
industry of force-joyticks.

Si

On Sun, 21 Sep 2003 13:06:29 +0100, "Simon Robbins"
wrote:

"Christopher" wrote in message
...
Initially it was a force-sensing stick, but later they added some "play"
to
it.


By *play* how many degrees can the pilot now move it?


Check out http://www.ultra-msi.com/mini.html, a supplier to the aerospace
industry of force-joyticks.

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Christopher
+++++++++++++++++++++++++
"Kites rise highest against
the wind - not with it."
Winston Churchill