757 avionics

FriarTuck wrote in
:

some questions if anyone knows the answers...

is 757 fly by wire or fly by cable?


Neither


The FMCS has full flight and landing capability, is it a separate
control system?

It can autland but it's seperate from the flight controls. You can
disengage it anytime you like.
It fails passive, which means you can manually oer-ride any time you
want.


The FANS network, is it capable of directing "goto location/altitude"
and "set airspeed to K" type commands to the plane?


Doesn't have one


Is the yoke and throttle a completely separate control system from the
FMCS control system or are they common?


seperate

is the throttle control in cockpit only routed through FMCS ?

No


I read that the yoke was capable of exerting more power on the
surfaces than the FMCS could, essentially giving yoke priority, is
that correct? If so can you describe how that works?


The stick will give more authority because the autopiot flies the
airplane in a more limited way than a pilot would. When it intercepts an
altitude, it does so smoothly with a limited G. A pilot can manuever the
airplane as abruptly as he likes, but of course, most do so just as
smoothly as the autopilot does.
Sometimes the autopilot isn't quite so smooth. If it gets "surprised" by
a track interception, for instance, it will be a bit jerky in roll, or
if it gets surprised by a pitch intercept it wasn't expecting and the
autothrottle gets a bit out of step it will pitch a bit harshly. Ridig
as a passenger this sort of thing is often felt in the back and mistaken
for hand flying.


Bertie

On 3 Okt, 18:13, Bertie the Bunyip wrote:
FriarTuck wrote :

some questions if anyone knows the answers...

is 757 fly by wire or fly by cable?

Neither



The FMCS has full flight and landing capability, is it a separate
control system?

It can autland but it's seperate from the flight controls. You can
disengage it anytime you like.
It fails passive, which means you can manually oer-ride any time you
want.



The FANS network, is it capable of directing "goto location/altitude"
and "set airspeed to K" type commands to the plane?

Doesn't have one



Is the yoke and throttle a completely separate control system from the
FMCS control system or are they common?

seperate



is the throttle control in cockpit only routed through FMCS ?

No



I read that the yoke was capable of exerting more power on the
surfaces than the FMCS could, essentially giving yoke priority, is
that correct? *If so can you describe how that works?

The stick will give more authority because the autopiot flies the
airplane in a more limited way than a pilot would. When it intercepts an
altitude, it does so smoothly with a limited G. A pilot can manuever the
airplane as abruptly as he likes, but of course, most do so just as
smoothly as the autopilot does.
Sometimes the autopilot isn't quite so smooth. If it gets "surprised" by
a track interception, for instance, it will be a bit jerky in roll, or
if it gets surprised by a pitch intercept it wasn't expecting and the
autothrottle gets a bit out of step it will pitch a bit harshly. Ridig
as a passenger this sort of thing is often felt in the back and mistaken
for hand flying.

Bertie

Thankyou. Very informative.

At the risk of filling your forum with kookery - Speaking as someone
who seems to have experienced these things, do you think that, once
getting in the general area using the autopilot, Hani Hanjour (or even
Friar Tuck or myself - a low hours, head-up-arse PPL) could have
performed a 360 degree turn, pointed it at the Pentagon, and smacked
into it?

wrote in
:

On 3 Okt, 18:13, Bertie the Bunyip wrote:
FriarTuck wrote

s2:

some questions if anyone knows the answers...

is 757 fly by wire or fly by cable?

Neither



The FMCS has full flight and landing capability, is it a separate
control system?

It can autland but it's seperate from the flight controls. You can
disengage it anytime you like.
It fails passive, which means you can manually oer-ride any time you
want.



The FANS network, is it capable of directing "goto
location/altitude" and "set airspeed to K" type commands to the
plane?

Doesn't have one



Is the yoke and throttle a completely separate control system from
the FMCS control system or are they common?

seperate



is the throttle control in cockpit only routed through FMCS ?

No



I read that the yoke was capable of exerting more power on the
surfaces than the FMCS could, essentially giving yoke priority, is
that correct? *If so can you describe how that works?

The stick will give more authority because the autopiot flies the
airplane in a more limited way than a pilot would. When it intercepts
an altitude, it does so smoothly with a limited G. A pilot can
manuever the airplane as abruptly as he likes, but of course, most do
so just as smoothly as the autopilot does.
Sometimes the autopilot isn't quite so smooth. If it gets "surprised"
by a track interception, for instance, it will be a bit jerky in
roll, or if it gets surprised by a pitch intercept it wasn't
expecting and the autothrottle gets a bit out of step it will pitch a
bit harshly. Ridig as a passenger this sort of thing is often felt in
the back and mistaken for hand flying.

Bertie

Thankyou. Very informative.

At the risk of filling your forum with kookery - Speaking as someone
who seems to have experienced these things, do you think that, once
getting in the general area using the autopilot, Hani Hanjour (or even
Friar Tuck or myself - a low hours, head-up-arse PPL) could have
performed a 360 degree turn, pointed it at the Pentagon, and smacked
into it?



Yep


Bertie

On Fri, 03 Oct 2008 16:13:16 +0000, Bertie the Bunyip wrote:

FriarTuck wrote in
:

some questions if anyone knows the answers...

is 757 fly by wire or fly by cable?


Neither


you contradict yourself again and say its fly by wire to parris_k... why
is that?


The FMCS has full flight and landing capability, is it a separate
control system?

It can autland but it's seperate from the flight controls. You can
disengage it anytime you like.
It fails passive, which means you can manually oer-ride any time you
want.


The FANS network, is it capable of directing "goto location/altitude"
and "set airspeed to K" type commands to the plane?


Doesn't have one


Is the yoke and throttle a completely separate control system from the
FMCS control system or are they common?


seperate


but you contradict yourself in another reply and say its shared, you say
the fmcs uses the same controls as yoke...

is the throttle control in cockpit only routed through FMCS ?

No


I read that the yoke was capable of exerting more power on the surfaces
than the FMCS could, essentially giving yoke priority, is that correct?
If so can you describe how that works?


The stick will give more authority because the autopiot flies the
airplane in a more limited way than a pilot would. When it intercepts an
altitude, it does so smoothly with a limited G. A pilot can manuever the
airplane as abruptly as he likes, but of course, most do so just as
smoothly as the autopilot does.

so if autopilot/fmcs could not be switched off then the pilot has no way
of over-riding the controls?

Sometimes the autopilot isn't quite so smooth. If it gets "surprised" by
a track interception, for instance, it will be a bit jerky in roll, or
if it gets surprised by a pitch intercept it wasn't expecting and the
autothrottle gets a bit out of step it will pitch a bit harshly. Ridig
as a passenger this sort of thing is often felt in the back and mistaken
for hand flying.


Bertie

FriarTuck wrote in :

On Fri, 03 Oct 2008 16:13:16 +0000, Bertie the Bunyip wrote:

FriarTuck wrote in
:

some questions if anyone knows the answers...

is 757 fly by wire or fly by cable?


Neither


you contradict yourself again and say its fly by wire to parris_k... why
is that?

Apparently it's because

A, you can't read

B. you're a conspirawhacko

C. all of the above.



Take your pick.


Bertie===

On 4 Okt, 01:52, FriarTuck wrote:
On Fri, 03 Oct 2008 16:13:16 +0000, Bertie the Bunyip wrote:
FriarTuck wrote in
:

some questions if anyone knows the answers...

is 757 fly by wire or fly by cable?

Neither

you contradict yourself again and say its fly by wire to parris_k...

No, he didn't. He said, over and over again, that it WASN'T fly by
wire. You're simply too stupid to understand what you are being told.
You ****ing braindead kook-sucker

"FriarTuck" wrote in message
...
some questions if anyone knows the answers...

is 757 fly by wire or fly by cable?



Your best bet is to talk directly to one of our experts on using flight
computers and autopilots:


--
Geoff
The Sea Hawk at Wow Way d0t Com
remove spaces and make the obvious substitutions to reply by mail
When immigration is outlawed, only outlaws will immigrate.

"Capt. Geoffrey Thorpe" The Sea Hawk @See My Sig.com wrote in
:

"FriarTuck" wrote in message
...
some questions if anyone knows the answers...

is 757 fly by wire or fly by cable?



Your best bet is to talk directly to one of our experts on using flight
computers and autopilots:



That's just mean.


Bertie