767-400 question!!!
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767-400 question!!!
Hi mates, i have a question.
is the boeing 767-400 fly-by-wire or fly-by-cable?
afaik, the 767-200 and -300 series are fly-by-cable (hope it's correct!), but the -400 is a young airplane and has the nearly same cockpit (and some technologies) of the big 777...
Thanks to everyone...
A.
is the boeing 767-400 fly-by-wire or fly-by-cable?
afaik, the 767-200 and -300 series are fly-by-cable (hope it's correct!), but the -400 is a young airplane and has the nearly same cockpit (and some technologies) of the big 777...
Thanks to everyone...
A.
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The 777 is the only fly-by-wire Boeing currently in service.
The 767-400 and the 737NG series both utilize conventional flight controls despite post-dating the 777 design.
FVmo
The 767-400 and the 737NG series both utilize conventional flight controls despite post-dating the 777 design.
FVmo
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The Boeing 777 is a true fly-by-wire system in the sense that in normal operation the control inputs are relayed electronically to the flight control actuators.
In the unlikely event of a complete electrical system or multiple computer system failure, the 777 retains a mechanical backup connecting the pilots to select spoilers (#4 and # 11) and the stabilizer actuators VIA a direct cable link. The alternate pitch trim levers are used to move the stabilizer.
The triple 7's inclusion of a mechanical backup does differ from the Airbus fly-by-wire system - which is why most consider Airbus as having the true (and entirely electronic) fly-by-wire FCS. Look Ma - no cables !
EDIT: Referring to twin-aisle models here.
The 767 (all models) employs a traditional cable/hydraulic actuator FCS.
In the unlikely event of a complete electrical system or multiple computer system failure, the 777 retains a mechanical backup connecting the pilots to select spoilers (#4 and # 11) and the stabilizer actuators VIA a direct cable link. The alternate pitch trim levers are used to move the stabilizer.
The triple 7's inclusion of a mechanical backup does differ from the Airbus fly-by-wire system - which is why most consider Airbus as having the true (and entirely electronic) fly-by-wire FCS. Look Ma - no cables !
EDIT: Referring to twin-aisle models here.
The 767 (all models) employs a traditional cable/hydraulic actuator FCS.
Last edited by vapilot2004; 20th Jan 2006 at 18:43.
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Ah - yes, I see now - Pitch and Yaw have backup. Rudder pedals control that surface directly and stab trim will minimally control the pitch on the A320. 
OOPS - thank you for that.
Is this carried over into the twin aisle aircraft ? As I understood it, there is no mechanical reversion in the very unlikely event of complete FCS failure on the larger model Airbus.
OOPS - thank you for that.Is this carried over into the twin aisle aircraft ? As I understood it, there is no mechanical reversion in the very unlikely event of complete FCS failure on the larger model Airbus.
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Originally Posted by kenparry
For XPMorten:
The B757/767 spoilers are signalled mechanically - definitely not FBW
The B757/767 spoilers are signalled mechanically - definitely not FBW
I was trying to copy MM 27-61-00 in to here but won't work.
Trust me I changed a spoiler actuator on a B757 last month. Really easy, two hyd pipes and an electrical plug. No rigging involved.
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Originally Posted by XPMorten
Think the 757/767 has FBW spoilers only... .
XPM
XPM
Also the engine throttles on most B767 ( Not the oldest ones)
are FBW.
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The Flaps and slats are also FBW.
747-400 yes but not the light twin
Spoilers are definitely FBW and stab trim is electric too on later models
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[QUOTE=Bolty McBolt]I haven't seen fly by wire slat/flap sys on a 767.
747-400 yes but not the light twin
[/QUOTE
Sorry you are right. (Work on too many aircraft thinking of B744)
747-400 yes but not the light twin
[/QUOTE
Sorry you are right. (Work on too many aircraft thinking of B744)
