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JetPilot
Joined: 10 Jan 2006
Posts: 1246
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 Posted: Sun Jan 22, 2006 10:39 am Post subject: Re: Artificial Horizon |
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| Bruce(at)glasair.org wrote: | I really don't understand this rush to go out and bet your life on untested,
uncertified instrumentation.
Bruce
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The author of the origional thread has a very limited, narrow view of things. Just because something is "certified" does not make it better or safer. That kind of backwards thinking just hindres progress. There is obviously stuff out there that works, and stuff out there that does not. Its just a matter if having the skill and intelligence to chose good equipment. Having a sticker that says "certified" does not make something better, it just makes idiots feel better.
And yes, having a moving map IS safer than "certified" vacuum guages, as it increases situational awareness. There are many many dead people that have flown into terrain that would have lived had they had a moving map display. Failures of people are much more common than failures of moving map displays. For safety, I would take the best moving map display with terrain displayed over "certified" round dials and vacuum pumps any day.
I would take a good electronic Horizon over a "certified" vacuum pump horizon any day. Vacuum pumps are famous for failing, their antique design is very limited and they fail more much more often than pizo-electric gyros. Only a complete moron with the inability to adapt to anything new would say something is safer just because it is "certified".
Michael A. Bigelow
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_________________
"NO FEAR" - If you have no fear you did not go as fast as you could have !!!
Kolb MK-III Xtra, 912-S |
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low pass
Joined: 10 Jan 2006
Posts: 32
Location: Houston
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| Posted: Sun Jan 22, 2006 11:35 am Post subject: Re: Artificial Horizon |
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Certified!! Yea, that's why I fly an experimental. 205 mph on 160-hp, 7-8 gph, sport acro, light IFR, cross country, 30 minute local evening fun flights... and it's something I built, I maintain and cost me less than $45,000. Find something FAA certified that fits that bill!  You can't, because federal oversight of general aviation stifles creativity, inflates costs and slows progress.
Is that a certified plastic airplane you credit yourself with there, Bruce? 
Bryan Jones RV-8
Houston Texas
www.LoneStarSquadron.com
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nyman(at)bellsouth.net
Guest
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| Posted: Mon Jan 23, 2006 10:10 am Post subject: Artificial Horizon |
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I stand corrected. I had forgotten about the AHRS. You would think I would
remember, since I sent mine in to have that problem fixed. The failure
manifests itself during power-up so that you know you have a problem before
you ever leave the ground.
Steve
N174AS
MEM
do not archive
Time: 08:42:39 AM PST US
From: "Bruce Gray" <Bruce(at)glasair.org>
Subject: RE: Re: Artificial Horizon
No, they don't. The software is the same, the hardware is not. Take for
example the AHRS, the certified units use the Crossbow 500 series or better,
the non-certified units use the Crossbow 400 series. The 400 series has just
been flagged by a Crossbow SB as VFR use only. They found a few software
bugs they have to iron out. The 400 series AHRS are not certified.
FMI: http://www.xbow.com/Support/Support_pdf_files/Service_Letter_NAV425.pdf
Bruce
www.glasair.org
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