From: David Gillon <david.gillon@baesystems.com>
Subject: Re: Interresting thread in comp.lang.eiffel
Date: 2000/07/24
Date: 2000-07-24T00:00:00+00:00 [thread overview]
Message-ID: <397C2A05.D62F95A2@baesystems.com> (raw)
In-Reply-To: 397A5CB4.AF5F6B8A@earthlink.net
"Robert I. Eachus" wrote:
> > The gains changed abruptly when the aircraft transitioned from
> > takeoff-and-landing to up-and-away mode. This produced a sudden transient,
> > triggering the start of the PIO. The transition now occurs more gradually.
>
> That fixes the primary cause, but not the actual failure mode. Does
> the stick now
> have tactile feedback? Or has the rate limit on the stabilator been
> changed? (Yes,
> avoiding sudden non-pilot-induced control inputs is a very good thing.
> But tactile
> feedback, such as stick shakers for stall warnings have the great
> advantage of
> focusing the pilot on where the action is needed.
Tactile feedback from the stick isn't the problem here, it's the rate at
which the feedback loop functions. Even without the stick moving the
pilot is getting sensory feedback from his inner ear and visual cues.
However by the time he's responded the aircraft is already into the
wrong part of the cycle and his actions exacerbate the situation. You
need to change the control laws, not the pilot/aircraft interface.
--
David Gillon
next prev parent reply other threads:[~2000-07-24 0:00 UTC|newest]
Thread overview: 102+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <8ipvnj$inc$1@wanadoo.fr>
[not found] ` <8j67p8$afd$1@nnrp1.deja.com>
[not found] ` <slrn8leffq.ebq.gisle@spurv.ii.uib.no>
[not found] ` <395886DA.CCE008D2@deepthought.com.au>
[not found] ` <3958B07B.18A5BB8C@acm.com>
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[not found] ` <Rmt95.7825$7%3.595826@news.flash.net>
2000-07-13 0:00 ` Interresting thread in comp.lang.eiffel Joachim Durchholz
2000-07-13 0:00 ` Marin D. Condic
2000-07-14 0:00 ` Ken Garlington
2000-07-14 0:00 ` Marin D. Condic
2000-07-14 0:00 ` Ken Garlington
2000-07-14 0:00 ` Ken Garlington
2000-07-16 0:00 ` Joachim Durchholz
2000-07-16 0:00 ` Ken Garlington
2000-07-19 0:00 ` Joachim Durchholz
2000-07-19 0:00 ` Ken Garlington
[not found] ` <3963DEBF.79C40BF1@eiffel.com>
[not found] ` <2LS85.6100$7%3.493920@news.flash.net>
[not found] ` <8k5aru$1odtq$1@ID-9852.news.cis.dfn.de>
[not found] ` <Rnt95.7826$7%3.596208@news.flash.net>
[not found] ` <8k8pk2$20cab$1@ID-9852.news.cis.dfn.de>
[not found] ` <_dS95.9945$7%3.666180@news.flash.net>
2000-07-12 0:00 ` David K Allen
2000-07-12 0:00 ` Ken Garlington
2000-07-12 0:00 ` David K Allen
2000-07-12 0:00 ` David K Allen
2000-07-13 0:00 ` Howard W. LUDWIG
2000-07-13 0:00 ` Joachim Durchholz
2000-07-14 0:00 ` Ken Garlington
2000-07-14 0:00 ` Ken Garlington
2000-07-18 0:00 ` Veli-Pekka Nousiainen
2000-07-19 0:00 ` Ken Garlington
2000-07-19 0:00 ` Bob Allen
2000-07-12 0:00 ` David Gillon
2000-07-13 0:00 ` Joachim Durchholz
2000-07-13 0:00 ` David Gillon
2000-07-13 0:00 ` David K Allen
2000-07-13 0:00 ` Bob Allen
2000-07-13 0:00 ` Joachim Durchholz
2000-07-18 0:00 ` Veli-Pekka Nousiainen
2000-07-19 0:00 ` Joachim Durchholz
2000-07-14 0:00 ` Ken Garlington
2000-07-18 0:00 ` Veli-Pekka Nousiainen
2000-07-19 0:00 ` David Gillon
2000-07-12 0:00 ` Bob Allen
2000-07-12 0:00 ` Ken Garlington
2000-07-13 0:00 ` Bob Allen
2000-07-14 0:00 ` Ken Garlington
2000-07-14 0:00 ` carr_tom
2000-07-18 0:00 ` Veli-Pekka Nousiainen
2000-07-14 0:00 ` Marin D. Condic
[not found] ` <Rnt95.78 <L6vb5.16117$7%3.988701@news.flash.net>
2000-07-14 0:00 ` Nick Williams
[not found] ` <396502D2.BD8A42E7@earthlink.net>
[not found] ` <RSsa5.11075$7%3.784507@news.flash.net>
[not found] ` <6aHa5.113$6E.23141@ptah.visi.com>
[not found] ` <396B4A68.458FA3BC@maths.unine.ch>
[not found] ` <u6hp4i16$GA.283@cpmsnbbsa07>
2000-07-11 0:00 ` Ken Garlington
2000-07-12 0:00 ` Peter Amey
2000-07-12 0:00 ` Peter Amey
2000-07-13 0:00 ` Joachim Durchholz
2000-07-12 0:00 ` Bob Allen
2000-07-12 0:00 ` Ken Garlington
2000-07-12 0:00 ` David Starner
2000-07-11 0:00 ` cropt
[not found] ` <39654639.B3760EF2@eiffel.com>
[not found] ` <i4k95.7512$7%3.571616@news.flash.net>
[not found] ` <oqog45g1j0.fsf@premise.demon.co.uk>
[not found] ` <85Fa5.11419$7%3.818927@news.flash.net>
2000-07-11 0:00 ` Aspects (Re: Interesting thread in comp.lang.eiffel) tom
2000-07-12 0:00 ` Steve Merrick
2000-07-12 0:00 ` Frank Mitchell
2000-07-14 0:00 ` Jubilation
2000-07-14 0:00 ` Frank Mitchell
2000-07-15 0:00 ` Jubilation
2000-07-12 0:00 ` Veli-Pekka Nousiainen
2000-07-12 0:00 ` tom
2000-07-12 0:00 ` Design by Contract (was " David Kristola
2000-07-12 0:00 ` Greg
2000-07-12 0:00 ` Matthew J Heaney
2000-07-13 0:00 ` Eirik Mangseth
2000-07-12 0:00 ` Howard W. LUDWIG
2000-07-12 0:00 ` Greg
2000-07-12 0:00 ` Eirik Mangseth
2000-07-13 0:00 ` Joachim Durchholz
2000-07-14 0:00 ` David Kristola
2000-07-14 0:00 ` Matthew J Heaney
2000-07-16 0:00 ` Joachim Durchholz
2000-07-17 0:00 ` David Kristola
2000-07-19 0:00 ` Joachim Durchholz
2000-07-25 0:00 ` Richard Riehle
2000-07-18 0:00 ` Interesting thread in comp.lang.eiffel Veli-Pekka Nousiainen
2000-07-19 0:00 ` Ken Garlington
[not found] ` <i4k95.7512$7%3.571616@n <397D8CC3.BB0C9001@ix.netcom.com>
2000-07-29 0:00 ` Writing better software was: Design by Contract (was Re: Interesting thread in comp.lang.eiffel) Kent Paul Dolan
2000-07-29 0:00 ` Ken Garlington
2000-07-31 0:00 ` Stefan Skoglund
2000-08-01 0:00 ` Ken Garlington
2000-08-01 0:00 ` Kent Paul Dolan
2000-08-01 0:00 ` Ken Garlington
2000-07-31 0:00 ` Simon Brady
2000-07-30 0:00 ` John Magness
2000-08-01 0:00 ` Simon Brady
2000-08-01 0:00 ` Simon Brady
2000-08-04 0:00 ` Robert I. Eachus
2000-08-04 0:00 ` Simon Brady
2000-08-01 0:00 ` Ken Garlington
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[not found] ` <3966D7B0.5D6475E4@earthlink.net>
[not found] ` <A5J95.9237$7%3.638838@news.flash.net>
2000-07-12 0:00 ` Interresting thread in comp.lang.eiffel Robert I. Eachus
2000-07-13 0:00 ` Ken Garlington
2000-07-23 0:00 ` Robert I. Eachus
2000-07-23 0:00 ` Ken Garlington
2000-07-24 0:00 ` swhalen
2000-07-24 0:00 ` David Gillon
2000-07-24 0:00 ` Ken Garlington
2000-07-24 0:00 ` David Gillon [this message]
[not found] ` <39688CA2.31B2A7EF@acm.com>
2000-07-13 0:00 ` Joachim Durchholz
2000-07-13 0:00 ` Marin D. Condic
[not found] ` <8k8p8m$1upjk$1@ID-9852.news.cis.dfn.de>
[not found] ` <0cS95.9944$7%3.667682@news.flash.net>
2000-07-13 0:00 ` Joachim Durchholz
2000-07-14 0:00 ` Ken Garlington
[not found] ` <39573CAB.BB90DF92@gecm.com>
[not found] ` <8j8ek0$24la$3@ID-9852.news.cis.dfn.de>
[not found] ` <3957ED3E.E64E7390@lmco.com>
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2000-07-13 0:00 ` Joachim Durchholz
2000-07-14 0:00 ` Ken Garlington
2000-07-16 0:00 ` Joachim Durchholz
2000-07-16 0:00 ` Ken Garlington
[not found] ` <8j7i54$j7d5@news.kvaerner.com>
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2000-07-18 0:00 ` Interesting " Veli-Pekka Nousiainen
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