![]() |
If this is your first visit, be sure to check out the FAQ by clicking the link above. You may have to register before you can post: click the register link above to proceed. To start viewing messages, select the forum that you want to visit from the selection below. |
|
|
Thread Tools | Display Modes |
#61
|
|||
|
|||
![]() "BUFDRVR" wrote in message ... No auto-rudder on the 757 when I retired from AA in 1993. I have no reason to doubt you, just wondering what the hell Boeings putting out in their literature. Does anyone with RB-211s have an auto rudder system? The 757 has an automatic YAW damper, as does the F-4, but the flight control changes you are describing are a 777 feature. You really need an integrated flight control computer to justify taking that much authority away from the operator. A FBW B-52 is cool with me, but it sounds a tad pricey. |
#62
|
|||
|
|||
![]()
"Tarver Engineering" wrote
"BUFDRVR" wrote No auto-rudder on the 757 when I retired from AA in 1993. I have no reason to doubt you, just wondering what the hell Boeings putting out in their literature. Does anyone with RB-211s have an auto rudder system? The 757 has an automatic YAW damper, as does the F-4, but the flight control changes you are describing are a 777 feature. You really need an integrated flight control computer to justify taking that much authority away from the operator. A FBW B-52 is cool with me, but it sounds a tad pricey. I'm pretty sure the KC-135R has an auto-rudder, and it's a FBC (fly-by-cable). Although I've only been a passenger in one out of Altus, and that was in 89 :-) |
#63
|
|||
|
|||
![]() "Gene Storey" wrote in message ... "Tarver Engineering" wrote "BUFDRVR" wrote No auto-rudder on the 757 when I retired from AA in 1993. I have no reason to doubt you, just wondering what the hell Boeings putting out in their literature. Does anyone with RB-211s have an auto rudder system? The 757 has an automatic YAW damper, as does the F-4, but the flight control changes you are describing are a 777 feature. You really need an integrated flight control computer to justify taking that much authority away from the operator. A FBW B-52 is cool with me, but it sounds a tad pricey. I'm pretty sure the KC-135R has an auto-rudder, and it's a FBC (fly-by-cable). That would be expected, but in newer airliners, the operator is not really supposed to even operate the rudder. That idea is of course only filtering down to pilots after the A-300 event at Rockaway. In the 135 the automatic YAW damper was much less agressive than for the 757. Although I've only been a passenger in one out of Altus, and that was in 89 :-) The 757 is also fly by cable. |
#64
|
|||
|
|||
![]()
"Tarver Engineering" wrote...
That would be expected, but in newer airliners, the operator is not really supposed to even operate the rudder. Hmmm... Not what Boeing and the FAA say when an engine quits... |
#65
|
|||
|
|||
![]()
In article ,
"Tarver Engineering" wrote: That would be expected, but in newer airliners, the operator is not really supposed to even operate the rudder. That idea is of course only filtering down to pilots after the A-300 event at Rockaway. Quite a few of them found out about it from the Discovery Channel (really!). I think they need better mailing lists. -- cirby at cfl.rr.com Remember: Objects in rearview mirror may be hallucinations. Slam on brakes accordingly. |
#66
|
|||
|
|||
![]() "John R Weiss" wrote in message news:PKsdb.603847$Ho3.118129@sccrnsc03... "Tarver Engineering" wrote... That would be expected, but in newer airliners, the operator is not really supposed to even operate the rudder. Hmmm... Not what Boeing and the FAA say when an engine quits... Engine failure would be about the only condition where the operators feet should be pushing those pedals. |
#67
|
|||
|
|||
![]()
"Tarver Engineering" wrote
Engine failure would be about the only condition where the operators feet should be pushing those pedals. The only time you shouldn't use the rudder, is when the autopilot is on. |
#68
|
|||
|
|||
![]() "Gene Storey" wrote in message ... "Tarver Engineering" wrote Engine failure would be about the only condition where the operators feet should be pushing those pedals. The only time you shouldn't use the rudder, is when the autopilot is on. Negatory. Modern airliner rudders are for the automatic YAW damper to operate. Human inputs are redundant and often dangerous. |
#69
|
|||
|
|||
![]()
B-58 Hustler History: http://members.cox.net/dschmidt1/
- "Tarver Engineering" wrote in message ... That would be expected, but in newer airliners, the operator is not really supposed to even operate the rudder. That idea is of course only filtering down to pilots after the A-300 event at Rockaway. Not so. The rudder is used to coordinate flight in modern airliners as in any airplane. It just doesn't take nearly as much with a properly functioning yaw damper. The pilot flying keeps his feet on the rudder pedals when hand-flying the aircraft. Rudder is used to deliberately un-coordinate the aircraft when taking off and landing with a crosswind. I know some airliners are landed in a crab with a crosswind but most call for wing low into the wind with opposite rudder for alignment. Even autoland uses opposite rudder to convert from a crab to a slip, usually at 150' AGL. The only change after the A-300 event is a re-evaluation of what is meant by being at or below max maneuvering speed. The old idea that being at or below that speed allows full control deflection with no restrictions is what is being questioned. |
#70
|
|||
|
|||
![]() "Darrell" wrote in message news:VXGdb.3195$La.2924@fed1read02... B-58 Hustler History: http://members.cox.net/dschmidt1/ - "Tarver Engineering" wrote in message ... That would be expected, but in newer airliners, the operator is not really supposed to even operate the rudder. That idea is of course only filtering down to pilots after the A-300 event at Rockaway. Not so. The rudder is used to coordinate flight in modern airliners as in any airplane. Sorry Darrel, but you are outdated. It just doesn't take nearly as much with a properly functioning yaw damper. Or any at all. The pilot flying keeps his feet on the rudder pedals when hand-flying the aircraft. An unsafe practice, for modern airliners. Rudder is used to deliberately un-coordinate the aircraft when taking off and landing with a crosswind. No, use of the rudder is explicity unsafe. I know some airliners are landed in a crab with a crosswind but most call for wing low into the wind with opposite rudder for alignment. Even autoland uses opposite rudder to convert from a crab to a slip, usually at 150' AGL. Nice for a DC-9. The only change after the A-300 event is a re-evaluation of what is meant by being at or below max maneuvering speed. The old idea that being at or below that speed allows full control deflection with no restrictions is what is being questioned. No, there is no question whatsover that the AA pilots were in violation of that flight rule. What came out of the A-300 acident was both large transport manufacturers saying pilots should not use the rudder under normal operations. |
Thread Tools | |
Display Modes | |
|
|