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Old September 26th 08, 03:43 AM posted to 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 :


"Stealth Pilot" wrote in message
...
| On Mon, 22 Sep 2008 14:10:50 GMT, Robert Moore
| wrote:
|
| Stealth Pilot wrote
| Sideslips are a very useful tool because they allow you to
| substantially increase the drag, which makes you descent like a
| plumbers toolbag, but doesnt change the forward speed. so you have
| no increased risk of stalling as you wash off the height.
|
| What you have described is the "forward slip". Although control
| usage is the same in both, a "side slip" is used to correct for a
| crosswind, and a "forward slip" is used to descend more rapidly on
| final without having the airspeed increase. If one is not landing, I
| suppose that it would just be a "slip".
|
| Airliners normally do not use either because of the increased
| discomfort caused the passengers....both being uncoordinated flight.
|
| Amine wrote:
| PS: I have read about many cases of jetliners that had to make
| emergency descents at abnormally high speeds, but the AC143 seems
| the only one to have used the sideslip.
|
| AC 143 was constrained by "touchdown speed" runway length. An
| "emergency descent" has no such constraint and therefore is able to
| use the aircraft's maximum certificated speed for the descent...far
| in excess of what would be possible in an approach/landing
| situation.
|
| In an engine failure situation, keep it as high as possible for as
| long as possible to insure that the field can be reached, and then
| slip as much as required to lose the excess altitude without gaining
| airspeed.
|
| Bob Moore
| Flight Instructor ASE-IA
| ATP B-707 B-727
| PanAm (retired)
|
| in my country the manouver I describe is always called a side slip.
|
| side slips are used as I indicate to dirty up the aircraft
| aerodynamically.
| they can be used to counter a crosswind but the crabbed approach is
| preferred because it doesnt change the approach profile.
|
| it is a side slip.
|
| youalls mileage may vary :-)
|
| Stealth Pilot

Yeah, but you're a dumb ass.




Nope


Bertie