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nuckollsr(at)cox.net
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 Posted: Sat Mar 03, 2007 2:48 pm Post subject: What is insane? Was: Backup Electric Vacuum Pump |
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At 04:21 PM 3/3/2007 -0600, you wrote:
| Quote: | Old Bob ...
Wouldn't you opt for a vacuum horizon, even one that has the leans when
the EFIS locks up on final to an instrument runway? This has happened
while vectored to a runway not selected in the EFIS. It ended happily to
another pilot who resorted to backup instruments. Any instrument or piece
of hardware that will get your wings near level, even a leaning vacuum
driven horizon, is better than none at all . Bottom line is EFIS requires
back up stuff to level the wings and stay out of the weeds ... autopilot,
vac horizon, t&b, altimeter and airspeed. Betting on EFIS alone is
something not even Boeing does.
Jerry ...
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The least expensive, lightest, most useful and simplest
backup for any panel presentation of attitude
is the GPS aided wing leveler. If one is concerned
for reducing risks for failure of some piece of panel
equipment degrading the day's flight into an unhappy
event, the most risk free reversion mode is to let
a/p take over.
Bob . . .
----------------------------------------
( IF one aspires to be "world class", )
( what ever you do must be exercised )
( EVERY day . . . )
( R. L. Nuckolls III )
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BobsV35B(at)aol.com
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| Posted: Sat Mar 03, 2007 3:04 pm Post subject: What is insane? Was: Backup Electric Vacuum Pump |
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Good Evening Bob,
I do agree that having a wing leveler is a great idea.
I even like the way Mooney hooked it up so that we had to press on a button any time we wanted to hand fly the airplane, but I do not believe you will find ANY wing leveler that can be installed as cheaply as can a venturi powered vacuum T&B.
An electrically powered T&B is even cheaper if you do not count the cost of having an electrical system to power it.
Happy Skies,
Old Bob
AKA
Bob Siegfried
Ancient Aviator
Stearman N3977A
Brookeridge Air Park LL22
Downers Grove, IL 60516
630 985-8503
In a message dated 3/3/2007 4:50:04 P.M. Central Standard Time, nuckollsr(at)cox.net writes:
| Quote: | The least expensive, lightest, most useful and simplest
backup for any panel presentation of attitude
is the GPS aided wing leveler. If one is concerned
for reducing risks for failure of some piece of panel
equipment degrading the day's flight into an unhappy
event, the most risk free reversion mode is to let
a/p take over.
Bob . . .
|
AOL now offers free email to everyone. Find out more about what's free from AOL at AOL.com.
[quote][b]
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