Today's Message Index:
----------------------
1. 02:22 AM - 701 Fuel line question (Mike Hoffman)
2. 07:04 AM - Re: Zenith Family Problems? (Tommy Walker)
3. 09:14 AM - Re: Zenith Family Problems? (Dan Wilde)
4. 09:37 AM - Re: 701 Fuel line question (Dan Wilde)
5. 10:29 AM - Re: 701 Fuel line question (fritz)
6. 02:32 PM - Chat Room Reminder For "Digesters" (George Race)
7. 04:43 PM - Re: test (Gary Gower)
8. 05:06 PM - Re: test (raymondj)
9. 10:28 PM - Re: Zenith Family Problems? (Gary Gower)
10. 10:35 PM - Re: Zenith Family Problems? (Gary Gower)
Message 1
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| Subject: | 701 Fuel line question |
I am installing my new 912uls Rotax (100 hp) and am looking for a little advice
on the proper fitting to use to transition through the firewall. Do you know
if the fitting in the supplied motor fuel line is metric or US? I am not using
a gas collator at the firewall.
Thanks
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=240052#240052
Message 2
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| Subject: | Re: Zenith Family Problems? |
I think the entire rigging of the Flaperon system in the 701 makes it
resistant to flutter, provided the operator insures the linkage is secure.
Steel rods tend to not lose their tension :-) .
Also, the slow speed and drag should mitigate against flutter, again
provided the various components are secure.
However, I'm not an aeronautical engineer, though I've spent many nights in
the HI Express chain.
Tommy Walker
Building 701 #2 and have eyes on a 750.
Definitely Do Not Archive
The term mayday used for signaling for help (after SOS), comes from the
French word m'aidez, which is pronounced "may day" and means "Help Me."
Message 3
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| Subject: | Re: Zenith Family Problems? |
Yesterday I had my 701 at 102 mph and hit light turbulence at which
point I slowed down. There was no shaking or flutter of anything. It was
solid as a rock.
Dan Wilde
N948DW
Tommy Walker wrote:
>
> I think the entire rigging of the Flaperon system in the 701 makes it
> resistant to flutter, provided the operator insures the linkage is
> secure. Steel rods tend to not lose their tension J .
>
> Also, the slow speed and drag should mitigate against flutter, again
> provided the various components are secure.
>
> However, Im not an aeronautical engineer, though Ive spent many
> nights in the HI Express chain.
>
> Tommy Walker
>
> Building 701 #2 and have eyes on a 750.
>
Message 4
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| Subject: | Re: 701 Fuel line question |
Mike: My rubber fuel line just goes thru the firewall without a
fitting. A rubber grommet protects the line from chaffing.
Dan Wilde
N948DW
Mike Hoffman wrote:
>
> I am installing my new 912uls Rotax (100 hp) and am looking for a little advice
on the proper fitting to use to transition through the firewall. Do you know
if the fitting in the supplied motor fuel line is metric or US? I am not using
a gas collator at the firewall.
>
> Thanks
>
>
>
Message 5
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| Subject: | Re: 701 Fuel line question |
very dangerous setup
----- Original Message -----
From: "Dan Wilde" <dwilde@clearwire.net>
Sent: Sunday, April 19, 2009 12:36 PM
Subject: Re: Zenith701801-List: 701 Fuel line question
>
> Mike: My rubber fuel line just goes thru the firewall without a fitting.
> A rubber grommet protects the line from chaffing.
>
> Dan Wilde
> N948DW
>
> Mike Hoffman wrote:
>> <mhoffman9@tampabay.rr.com>
>>
>> I am installing my new 912uls Rotax (100 hp) and am looking for a little
>> advice on the proper fitting to use to transition through the firewall.
>> Do you know if the fitting in the supplied motor fuel line is metric or
>> US? I am not using a gas collator at the firewall.
>>
>> Thanks
>>
>>
>>
>>
>>
>
>
>
Message 6
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| Subject: | Chat Room Reminder For "Digesters" |
Live Chat Room every Monday evening around 8:00 EDT
www.mykitairplane.com <blocked::blocked::http://www.mykitairplane.com/>
Click on the Chat Room link on the page.
George
Do Not Archive
Message 7
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This week end we decided to replace the pieces of tyre from the main gear s
upport. we made a piece of nylamid betwen the fuselage and the main gear,
=C2- we then flew it and works great.
=C2-
We did this:=C2- We installed the formed nylon piece (made with the Bridg
eport) betwen the fuselage support and the gear, then we installed a (new)
piece of tyre in the lower side, to avoid rigidity.
Works great.
=C2-
Saludos
Gary Gower.
Flying from Chapala,=C2-Mexico
701 912S=C2-=C2- 238 hrs.
Still building 601 XL=C2- 3300 Jab.
=C2-
--- On Fri, 4/17/09, Bob Collins <bobcollins42@gmail.com> wrote:
From: Bob Collins <bobcollins42@gmail.com>
Subject: Re: Zenith701801-List: test
<bobcollins42@gmail.com>
That's because everyone is on the Zenith-List, reacting to the NTSB
report on the 601XL. There have been more than a hundred messages in
last several days!
Bob Collins
Sunnyvale CA USA
Bob Percival wrote:
>
> I=99ve not seen any messages since Tuesday =93 so =93 t
esting.
>
> Bob Percival
>
> 701/Vair
>
> *
>
>
> *
=0A=0A=0A
Message 8
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Gary,
Could you post pictures or drawings of the parts and the installation?
Raymond Julian
Kettle River, MN
"Hope for the best,
but prepare for the worst."
do not archive
----- Original Message -----
From: "Gary Gower" <ggower_99@yahoo.com>
Sent: Sunday, April 19, 2009 6:43 PM
Subject: Re: Zenith701801-List: test
This week end we decided to replace the pieces of tyre from the main gear
support. we made a piece of nylamid betwen the fuselage and the main gear,
we then flew it and works great.
We did this: We installed the formed nylon piece (made with the Bridgeport)
betwen the fuselage support and the gear, then we installed a (new) piece of
tyre in the lower side, to avoid rigidity.
Works great.
Saludos
Gary Gower.
Flying from Chapala, Mexico
701 912S 238 hrs.
Still building 601 XL 3300 Jab.
--- On Fri, 4/17/09, Bob Collins <bobcollins42@gmail.com> wrote:
From: Bob Collins <bobcollins42@gmail.com>
Subject: Re: Zenith701801-List: test
<bobcollins42@gmail.com>
That's because everyone is on the Zenith-List, reacting to the NTSB
report on the 601XL. There have been more than a hundred messages in
last several days!
Bob Collins
Sunnyvale CA USA
Bob Percival wrote:
>
> Ive not seen any messages since Tuesday so testing.
>
> Bob Percival
>
> 701/Vair
>
> *
>
>
> *
--------------------------------------------------------------------------------
Checked by AVG - www.avg.com
19:52:00
Message 9
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| Subject: | Zenith Family Problems? |
Dead stick landing technique is a must to practice in ALL airplanes. Here i
s part of our training,- once "learned" should be practiced.
-
Might save your life, if any doubt, just ask the Hudson River Pilots.
-
Get some glider training will do you no harm.
-
Saludos
Gary Gower
Flying from Chapala, Mexico
701 912S
2 cycle engined ultralights "survivor" :-) :-)
--- On Sun, 4/19/09, Bob Percival <bob@frontrange-pc.com> wrote:
From: Bob Percival <bob@frontrange-pc.com>
Subject: RE: Zenith701801-List: Zenith Family Problems?
<bob@frontrange-pc.com>
Bob,
I'm no expert, but a quick browse of the NTSB accident database over the
last 20 years returned 27 '701' accidents. As Craig said, only one
fatality and a quick read of the probable cause on that accident would
not lead you to suspect the design. I saw no mention of flutter or
vibration in any of the reports. However, it appears that dead stick
landing technique might be worth practicing.
Bob Percival
701/Vair
-----Original Message-----
From: owner-zenith701801-list-server@matronics.com
[mailto:owner-zenith701801-list-server@matronics.com] On Behalf Of Bob
Collins
Sent: Saturday, April 18, 2009 6:50 PM
Subject: Zenith701801-List: Zenith Family Problems?
<bobcollins42@gmail.com>
I have a question for you long-time STOL aficionados. Is there any
reason to worry about flutter of the flaperon on the Zenith STOL
designs?
I have been following the "discussion" about potential 601XL aileron
flutter problems on the Zenith-List. One point seems to come through is
that using a mass-balanced aileron is a relatively common practice in
modern designs to reduce/eliminate flutter and, apparently, the 601XL
depends on proper tension on the control cables to satisfy this need
(Zenith has stated this). My personal observation is that, if what I
just stated is true, using mass-balanced ailerons would be preferable
because they require less frequent inspection and oversight.
My current interest is in the CH750, which of course has no history
other than what may be extrapolated from the 701 and 801. I don't see
any evidence of mass-balancing on the STOL models. Now, in many ways the
STOL planes are different than the 600 series designs, but is there any
reason to worry about similar issues on the 750? My first pass
observation is that the STOL planes are slower, have heavier control
surfaces, and the flaperon linkage (probably) has more inherent mass.
These would all point to flutter being less likely a problem on the STOL
designs that on the 600 designs.
In addition to concern about any (potential) real design issues, there
is the effect this whole issue might have on the reputation of Zenith
and the Zenith designs. A strong selling point for the Zenith designs is
the sterling reputation of the chief designer. If there are valid
criticisms of his design choices, particularly in an area that affects
safety, this would affect the whole Zenith ecosystem.
I am interested in your thoughts. Also, for those of you going to
Sun'N'Fun, please report anything you learn that would be of help to us
in the Zenith STOL community.
Thank you,
Bob Collins
Sunnyvale CA USA
Checked by AVG - www.avg.com
04/18/09 09:55:00
=0A=0A=0A
Message 10
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| Subject: | Re: Zenith Family Problems? |
Hello Dan,
=C2-
Getting ready for the San Diego Red Bull Race?=C2- :-)=C2- :-)=C2- :-
)
=C2-
Saludos
Gary Gower
Do not archive.
--- On Sun, 4/19/09, Dan Wilde <dwilde@clearwire.net> wrote:
From: Dan Wilde <dwilde@clearwire.net>
Subject: Re: Zenith701801-List: Zenith Family Problems?
<dwilde@clearwire.net>
Yesterday I had my 701 at 102 mph and hit light turbulence at which point I
slowed down. There was no shaking or flutter of anything. It was solid as a
rock.
Dan Wilde
N948DW
Tommy Walker wrote:
>
> I think the entire rigging of the Flaperon system in the 701 makes it
resistant to flutter, provided the operator insures the linkage is secure.
Steel
rods tend to not lose their tension J .
>
> Also, the slow speed and drag should mitigate against flutter, again
provided the various components are secure.
>
> However, I=99m not an aeronautical engineer, though I=99ve sp
ent many
nights in the HI Express chain.
>
> Tommy Walker
>
> Building 701 #2 and have eyes on a 750.
>
=0A=0A=0A
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