Today's Message Index:
----------------------
1. 04:42 AM - Dual static line runs? (tomhanaway)
2. 06:02 AM - Re: Dual static line runs? (Tim Olson)
3. 06:02 AM - Re: EIS Settings (Tim Olson)
4. 06:06 AM - Re: Dual static line runs? (Jesse Saint)
5. 06:29 AM - Re: Dual static line runs? (Tim Olson)
6. 06:55 AM - Re: Dual static line runs? (Rene Felker)
7. 06:58 AM - Re: Dual static line runs? (richard sipp)
8. 01:14 PM - Re: Dual static line runs? (jim@CombsFive.Com)
9. 02:35 PM - Re: Dual static line runs? (tomhanaway)
10. 06:32 PM - Re: Re: Dual static line runs? (jim@CombsFive.Com)
Message 1
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| Subject: | Dual static line runs? |
Trutrak suggests that a large # of demands on static line may cause lag in auto
pilot. Their suggestion is to run two static lines forward to panel IF this
occurs.
My current panel is two AFS 4500's, one AFS 3400, 2&1/4" backup altimeter and airspeed,
trutrak adi and vsvg2 autopilot , and 430w garmin stack for demands on
static line.
Has anyone actually found a need for a second static line (still using just the
original two static ports) or is one sufficient?
I'd like to avoid second line but if I'm going to run one, now's the time.
Thanks,
Tom H.
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=241293#241293
Message 2
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| Subject: | Re: Dual static line runs? |
I used that Tygon tubing for static and I've not seen any problems
even with at least 7 items tapped off of it. I'm not sure if tubing
size for other types of tubing would have an effect or not, but
I can only say that what I'm using seems to be fine. I'd give
it a try I guess before you worry about pulling more lines, because
unless you add 2 more static ports, I don't know that adding the
additional volume of another line would be a good thing.
Tim Olson - RV-10 N104CD - Flying
do not archive
tomhanaway wrote:
> <tomhanaway@comcast.net>
>
> Trutrak suggests that a large # of demands on static line may cause
> lag in auto pilot. Their suggestion is to run two static lines
> forward to panel IF this occurs.
>
> My current panel is two AFS 4500's, one AFS 3400, 2&1/4" backup
> altimeter and airspeed, trutrak adi and vsvg2 autopilot , and 430w
> garmin stack for demands on static line.
>
> Has anyone actually found a need for a second static line (still
> using just the original two static ports) or is one sufficient?
>
> I'd like to avoid second line but if I'm going to run one, now's the
> time.
>
> Thanks, Tom H.
>
>
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p=241293#241293
>
>
>
>
>
>
>
>
>
>
Message 3
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| Subject: | Re: EIS Settings |
I think this is what I'm using. My float cal has drifted just
a little over almost 500 hours though so I may re-work the
numbers some day.
2SF 44
2OFF 119
3SF 47
3OFF 127
I/D DIIDII
+/- +--+++
Tim Olson - RV-10 N104CD - Flying
do not archive
McGANN, Ron wrote:
> Hi guys,
>
> For those using GRTs EIS 6000 for displaying L/R fuel amount, could I
> trouble someone to pass on their AUXSF and AUXOFF settings so I can
> confirm my configuration??
>
> Thanks in advance
> Ron
> VH-XRM
> flying phase 1
>
> "Warning:
> The information contained in this email and any attached files is
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Message 4
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| Subject: | Re: Dual static line runs? |
I have not seen the need for 2 static lines. If you are worried about
it, you can put your Auto Pilot closest to the static port in your
routing, then your EFIS, then your backup instruments.
do not archive
Jesse Saint
Saint Aviation, Inc.
jesse@saintaviation.com
Cell: 352-427-0285
Fax: 815-377-3694
On Apr 26, 2009, at 7:37 AM, tomhanaway wrote:
>
> Trutrak suggests that a large # of demands on static line may cause
> lag in auto pilot. Their suggestion is to run two static lines
> forward to panel IF this occurs.
>
> My current panel is two AFS 4500's, one AFS 3400, 2&1/4" backup
> altimeter and airspeed, trutrak adi and vsvg2 autopilot , and 430w
> garmin stack for demands on static line.
>
> Has anyone actually found a need for a second static line (still
> using just the original two static ports) or is one sufficient?
>
> I'd like to avoid second line but if I'm going to run one, now's
> the time.
>
> Thanks,
> Tom H.
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p=241293#241293
>
>
Message 5
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| Subject: | Re: Dual static line runs? |
I'd keep the altimeter and air data instruments closest in all cases
if you find any issues. Knowing the correct altitude on an IMC
approach is more important than how quickly the autopilot reacts.
But, I doubt you'd have a problem.
Tim Olson - RV-10 N104CD - Flying
do not archive
Jesse Saint wrote:
>
> I have not seen the need for 2 static lines. If you are worried about
> it, you can put your Auto Pilot closest to the static port in your
> routing, then your EFIS, then your backup instruments.
>
> do not archive
>
> Jesse Saint
> Saint Aviation, Inc.
> jesse@saintaviation.com
> Cell: 352-427-0285
> Fax: 815-377-3694
>
> On Apr 26, 2009, at 7:37 AM, tomhanaway wrote:
>
>>
>> Trutrak suggests that a large # of demands on static line may cause
>> lag in auto pilot. Their suggestion is to run two static lines
>> forward to panel IF this occurs.
>>
>> My current panel is two AFS 4500's, one AFS 3400, 2&1/4" backup
>> altimeter and airspeed, trutrak adi and vsvg2 autopilot , and 430w
>> garmin stack for demands on static line.
>>
>> Has anyone actually found a need for a second static line (still using
>> just the original two static ports) or is one sufficient?
>>
>> I'd like to avoid second line but if I'm going to run one, now's the
>> time.
>>
>> Thanks,
>> Tom H.
>>
>>
>>
>>
>> Read this topic online here:
>>
>> http://forums.matronics.com/viewtopic.php?p=241293#241293
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>
>
>
>
>
Message 6
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| Subject: | Dual static line runs? |
I agree with Tim and Jesse and have not seen a need for it. I also agree
with Tim that I wonder if it even would do any good without another set of
ports.....the tubing ID is so much bigger than the static port opening. I
am not a fluid dynamics expert....but I did stay in a Condo in Park City
Last night. I have the following off of may static system....
Backup altimeter
Backup ADI
Backup AS indicator
Autopilot
Grand Rapids EFIS
Blue mountain EFIS
AOA
My autopilot works great....
Rene' Felker
RV-10 N423CF Flying
801-721-6080
-----Original Message-----
From: owner-rv10-list-server@matronics.com
[mailto:owner-rv10-list-server@matronics.com] On Behalf Of Tim Olson
Sent: Sunday, April 26, 2009 7:24 AM
Subject: Re: RV10-List: Dual static line runs?
I'd keep the altimeter and air data instruments closest in all cases
if you find any issues. Knowing the correct altitude on an IMC
approach is more important than how quickly the autopilot reacts.
But, I doubt you'd have a problem.
Tim Olson - RV-10 N104CD - Flying
do not archive
Jesse Saint wrote:
>
> I have not seen the need for 2 static lines. If you are worried about
> it, you can put your Auto Pilot closest to the static port in your
> routing, then your EFIS, then your backup instruments.
>
> do not archive
>
> Jesse Saint
> Saint Aviation, Inc.
> jesse@saintaviation.com
> Cell: 352-427-0285
> Fax: 815-377-3694
>
> On Apr 26, 2009, at 7:37 AM, tomhanaway wrote:
>
>>
>> Trutrak suggests that a large # of demands on static line may cause
>> lag in auto pilot. Their suggestion is to run two static lines
>> forward to panel IF this occurs.
>>
>> My current panel is two AFS 4500's, one AFS 3400, 2&1/4" backup
>> altimeter and airspeed, trutrak adi and vsvg2 autopilot , and 430w
>> garmin stack for demands on static line.
>>
>> Has anyone actually found a need for a second static line (still using
>> just the original two static ports) or is one sufficient?
>>
>> I'd like to avoid second line but if I'm going to run one, now's the
>> time.
>>
>> Thanks,
>> Tom H.
>>
>>
>>
>>
>> Read this topic online here:
>>
>> http://forums.matronics.com/viewtopic.php?p=241293#241293
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>
>
>
>
>
Message 7
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| Subject: | Re: Dual static line runs? |
I would have to agree wtih Tim and Jesse, I also have multiple taps and all
static related indications are
very close.
Dick Sipp
N110DV 130 hours
Message 8
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| Subject: | Re: Dual static line runs? |
That is weird. Is this specified in the manuals?
There is no flow in either the static or the pitot system, only
pressure. Very low pressures to boot.
Is that
something someone told you on the phone?
really curious.
Jim C
"tomhanaway" <tomhanaway@comcast.net>
Trutrak
suggests that a large # of demands on static line may cause lag in
auto pilot. Their suggestion is to run two static lines forward to
panel
IF this occurs.
My current panel is two AFS 4500's,
one AFS 3400, 2&1/4" backup altimeter
and airspeed, trutrak
adi and vsvg2 autopilot , and 430w garmin stack for
demands on static
line.
Has anyone actually found a need for a second static line
(still using
just the original two static ports) or is one
sufficient?
I'd like to avoid second line but if I'm going to
run one, now's the
time.
Thanks,
Tom H.
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=241293#241293
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Message 9
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| Subject: | Re: Dual static line runs? |
Jim, actually in writing. Page 2 of the vsvg2 install manual (see below). Based
on everyone's comments, it sounds like the single line has sufficient volume.
I'm using the safeair 1 system.
Thanks to all. One more "mental demon" put to rest.
Tom
Pitot and Static Connections
All multi-servo TruTrak autopilots require connections to the pitot and static
lines. The preferred method of this connection
would be tee fittings near the aircrafts altimeter. The static line for the autopilot
requires due care in its construction, as
excessive lag or insufficient static orifices can cause the autopilot to oscillate
(hunt) in pitch. Although there is compensation
within the autopilot sufficient to handle moderate amounts of lag, the importance
of a good static port and line cannot be
overstated. In some cases problems can be caused by having a large number of devices
(including the autopilot) connected to a
single, insufficient, static port. In other cases, the static line itself is adequate
but there are one or more devices connected to the
same line, one of which has a large static reservoir. A simple remedy for this
problem if it occurs is a tee-fitting near the static
port, and a dedicated line to the autopilot only. Obviously, an insufficiently-large
orifice coupled with large static reservoirs
can aggravate the problems associated with lag.
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=241355#241355
Message 10
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| Subject: | Re: Dual static line runs? |
I am currently installing an VSGV DII and missed that statement. I
could see where a older mechanical instrument might have a set of
"Bellows" and that by itself could set up some pressure
fluctuations. The newer electronic EFIS units depend on mems based
pressure sensors and would not have any such devices.
I
have been focusing on the servo installation this weekend. The
connections to the control unit will happen this week.
Comment
for anyone currently running wiring. Run ALL the wires you ever
think you might need. Going back and adding them is NOT a fun
process.
Thanks Tom for the post.
Jim Combs
N312F Flying (Soon with autopilot!)
--> RV10-List message
posted by: "tomhanaway" <tomhanaway@comcast.net>
Jim, actually in writing. Page 2 of the vsvg2 install manual (see
below).
Based on everyone's comments, it sounds like the single line
has
sufficient volume. I'm using the safeair 1 system.
Thanks
to all. One more "mental demon" put to rest.
Tom
Pitot and Static Connections
All multi-servo TruTrak
autopilots require connections to the pitot and
static lines. The
preferred method of this connection
would be tee fittings near the
aircraft€™s altimeter. The static line for
the
autopilot requires due care in its construction, as
excessive lag or
insufficient static orifices can cause the autopilot to
oscillate
(hunt) in pitch. Although there is compensation
within the autopilot
sufficient to handle moderate amounts of lag, the
importance of a
good static port and line cannot be
overstated. In some cases
problems can be caused by having a large number
of devices (including
the autopilot) connected to a
single, insufficient, static port. In
other cases, the static line itself
is adequate but there are one or
more devices connected to the
same line, one of which has a large
static reservoir. A simple remedy for
this problem if it occurs is a
tee-fitting near the static
port, and a dedicated line to the
autopilot only. Obviously, an
insufficiently-large orifice coupled
with large static reservoirs
can aggravate the problems associated
with lag.
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=241355#241355
- The RV10-List Email Forum -
Features Navigator to browse
Un/Subscription,
Chat, FAQ,
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