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03-01-2009, 07:47 PM
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Join Date: Apr 2008
Location: Indianapolis, IN
Posts: 1,069
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GRT and pitot?
May sound like a dumb question..., but here goes...with the GRT (sport) is a pitot required or not. I have been reading up on the AHRS info on there website and it sounds like with AHRS you do not need a pitot tube..true?
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Ryan Allen, CFII
RV7 N612RA, flying since july 2012
E-170/175
RV10 Tail Kit complete, Wings 90%, fuse on order
Acro Sport 2, building
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03-01-2009, 07:56 PM
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Join Date: Jan 2005
Location: Coshocton, Ohio
Posts: 315
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Quote:
Originally Posted by miyu1975
May sound like a dumb question..., but here goes...with the GRT (sport) is a pitot required or not. I have been reading up on the AHRS info on there website and it sounds like with AHRS you do not need a pitot tube..true?
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Nope! Need pitot and static.
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Dave Durakovich
CFIG, AGI, COMM SEL, VAF# 133
RV-4, N666PR, Finished (Well, at least flying)!
RV-6 - Adopted an orphan!
Detroit, MI
"If you think you can do a thing or think you can't do a thing, you're right."
Henry Ford
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03-01-2009, 08:09 PM
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Join Date: Jan 2005
Location: Charlotte, NC
Posts: 1,523
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Well.. it IS needed if you want it to show airspeed and altitude.. then pitot and static is needed  But if you're referring to attitude indicator stuff and AHRS and all that.. then no.. you do not need it for that.. it's using magnetometer to aid the attitude solution.
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Radomir
RV-7A sold
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03-02-2009, 10:00 AM
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Join Date: Oct 2007
Location: NY
Posts: 323
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But.......will the GRT **** out missing that info....
c r a p
Since when is **** a bad word...?
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03-02-2009, 10:51 AM
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Join Date: Feb 2006
Location: Baltimore, MD
Posts: 1,039
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Quote:
Originally Posted by Sticky1
But.......will the GRT **** out missing that info....
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Nope...GRT depends on the use of the magnetometer for an external reference to its AHRS. As far as I know, Dynon is the only EFIS which is dependent on the pitot/static system. |
03-02-2009, 12:20 PM
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Join Date: Oct 2007
Location: Salmon Arm, BC
Posts: 933
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Quote:
Originally Posted by bullojm1
As far as I know, Dynon is the only EFIS which is dependent on the pitot/static system.
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From what I have read the TruTrak EFIS would also have that dependency in that it uses vertical speed to maintain the horizon.
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Mark Olson
1987 RV-4 Sold
2003 Super Decathlon - Sold
F1 EVO Rocket, first flight May 31/14
First in line for the Sonex JSX-2T kit
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03-02-2009, 12:47 PM
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Join Date: Nov 2006
Location: Rockford, IL
Posts: 501
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Quote:
Originally Posted by miyu1975
May sound like a dumb question..., but here goes...with the GRT (sport) is a pitot required or not. I have been reading up on the AHRS info on there website and it sounds like with AHRS you do not need a pitot tube..true?
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Just to fully clarify this for those who might be reading this years from now, as they do their research: miyu1975 asked two different questions, and he was answered with one answer.
The answer to the first question is YES, a pitot tube IS required. And the answer to the second question is NO, it is NOT true that you do NOT need a pitot tube. I was mightily confused when I read the first few answers posted here.
Yeesh. Maybe it's just me..  Sorry.
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Buck Wyndham
Northern Illinois
RV-8 N18XL
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03-02-2009, 12:51 PM
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Join Date: Jan 2005
Location: Charlotte, NC
Posts: 1,523
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Buck, your summary is NOT correct.
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Radomir
RV-7A sold
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03-02-2009, 01:00 PM
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Join Date: Nov 2006
Location: Rockford, IL
Posts: 501
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What I'm trying to emphasize is that if you want a fully-functional GRT Sport EFIS, with airspeed and altitude (as most people do), then you need a pitot-static system.
Is that not correct?
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Buck Wyndham
Northern Illinois
RV-8 N18XL
Last edited by BuckWynd : 03-02-2009 at 01:52 PM.
Reason: spelling
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03-02-2009, 05:11 PM
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Join Date: Sep 2006
Location: Bozeman, Montana
Posts: 858
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Quote:
Originally Posted by BuckWynd
What I'm trying to emphasize is that if you want a fully-functional GRT Sport EFIS, with airspeed and altitude (as most people do), then you need a pitot-static system.
Is that not correct?
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That is correct.
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