Today's Message Index:
----------------------
1. 05:05 AM - 7075 instead for 6061 (Johann G.)
2. 05:51 AM - Re: 7075 instead for 6061 (Larry C. McFarland)
3. 07:35 AM - Re: 7075 instead for 6061 (Rick)
4. 08:07 AM - Re: 7075 instead for 6061 (Bryan Martin)
5. 08:47 AM - Re: 701 trim tab angle (Sam Cajun)
6. 09:36 AM - Don Walker's post on valve guides (George Swinford)
7. 10:21 AM - Re: Don Walker's post on valve guides (Don Walker)
8. 10:27 AM - Zenith list; 701 TRIM TAB SETTING (JERICKSON03E@aol.com)
9. 10:28 AM - Re: 7075 instead for 6061 (JGJ)
10. 03:38 PM - Re: 701 wing strut fairings? (Ed Kramer)
11. 07:18 PM - Prop clearance (Doug Mattson)
12. 08:02 PM - Fuel Pump - Aux Tanks... (Don Honabach)
13. 09:23 PM - Someone in Sacramento Ca. Area? (Gary Gower)
14. 10:14 PM - Re: Someone in Sacramento Ca. Area? (Steve Shuck)
Message 1
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| Subject: | 7075 instead for 6061 |
--> Zenith-List message posted by: "Johann G." <johann-g@talnet.is>
Hello list members.
I am finding out that a lot of parts have changed from my original kit, plus the
floor material 7-F-8-7 floor plate is missing from the kit, and am having problem
getting 6061 material to replace the outdated parts,
Is it acceptable to use the 7075-T6 material in place for the missing and changed
parts, with a good corrosion protection between different materials? This material
is assessable to me up here.
Thanks in advance,
Johann G.
Iceland.
Message 2
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| Subject: | Re: 7075 instead for 6061 |
--> Zenith-List message posted by: "Larry C. McFarland" <larrymc@qconline.com>
Subject: Zenith-List: 7075 instead for 6061
> --> Zenith-List message posted by: "Johann G." <johann-g@talnet.is>
>
> Hello list members.
>
> I am finding out that a lot of parts have changed from my original kit,
plus the floor material 7-F-8-7 floor plate is missing from the kit, and am
having problem getting 6061 material to replace the outdated parts,
> Is it acceptable to use the 7075-T6 material in place for the missing and
changed parts, with a good corrosion protection between different materials?
This material is assessable to me up here.
>
> Thanks in advance,
> Johann G.
> Iceland.
Johann,
I'd stay away from 7075 because it is compromised in weldability,
formability and corrosion
resistance. Its strength characteristics are higher, but at expense of
everything else. When it corrodes, it flakes
and pits from the contamination of handling. On commercial items forged and
sheet, we tried simple painting, conventional anodizing and none of it was a
satisfactory result when environmentally tested.
Larry C. McFarland - 601hds @ http://www.macsmachine.com
Message 3
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| Subject: | Re: 7075 instead for 6061 |
--> Zenith-List message posted by: Rick <rick.pitcher@verizon.net>
"Johann G." wrote:
>
> --> Zenith-List message posted by: "Johann G." <johann-g@talnet.is>
>
> Hello list members.
>
> I am finding out that a lot of parts have changed from my original kit, plus
the floor material 7-F-8-7 floor plate is missing from the kit, and am having
problem getting 6061 material to replace the outdated parts,
> Is it acceptable to use the 7075-T6 material in place for the missing and changed
parts, with a good corrosion protection between different materials? This
material is assessable to me up here.
>
> Thanks in advance,
> Johann G.
> Iceland.
7075 T-6 is darn near impossible to bend. It's usually shaped while in
the soft "O" condition then treated to T-6. It's a lot stronger
material, but far more brittle (prone to cracking when flexed). If
you're using it for flat, non-structural parts it MIGHT be OK, but I'd
say a phone call to ZAC would be in order before using it.
Give them a call or use the online support request at
http://www.zenithair.com/support.html before you try use any different
materials.
Rick
Message 4
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| Subject: | Re: 7075 instead for 6061 |
--> Zenith-List message posted by: Bryan Martin <bryanmmartin@comcast.net>
>
> "Johann G." wrote:
>>
>> --> Zenith-List message posted by: "Johann G." <johann-g@talnet.is>
>>
>> Hello list members.
>>
>> I am finding out that a lot of parts have changed from my original kit, plus
>> the floor material 7-F-8-7 floor plate is missing from the kit, and am having
>> problem getting 6061 material to replace the outdated parts,
>> Is it acceptable to use the 7075-T6 material in place for the missing and
>> changed parts, with a good corrosion protection between different materials?
>> This material is assessable to me up here.
>>
>> Thanks in advance,
>> Johann G.
>> Iceland.
>
If you bought a kit from zenith and parts have changed or become outdated,
check with Zenith, they may exchange or replace them. I've had pretty good
dealings with them whenever I've had problems.
--
Bryan Martin
N61BM, CH 601 XL, Stratus Subaru.
Airframe construction complete.
Working on instrument panel, electrical and interior.
do not archive.
Message 5
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| Subject: | Re: 701 trim tab angle |
--> Zenith-List message posted by: "Sam Cajun" <sam.caj@worldnet.att.net>
> there should be a little bend in both the top and bottom skins.
> Chuck D.
> N701TX - Jabiru 2200
>
Ideally, but....... difficult to pre-bend both ends and have bend
lines match-up after skin is wrapped around ribs.
Sam(701)
do not archive
Message 6
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| Subject: | Don Walker's post on valve guides |
--> Zenith-List message posted by: "George Swinford" <grs-pms@attbi.com>
Don:
Great information! Thanks for taking the time to post it.
George Swinford
Do not archive.
Message 7
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| Subject: | Re: Don Walker's post on valve guides |
--> Zenith-List message posted by: "Don Walker" <dwalk3dw@msn.com>
Subject: Guides: I just received this from Ron at Ramengines.com
Don
Thanks for the info and this sounds fine with me.
FYI- More info on Franks heads, we did find loose guides and one knurled but
I think the biggest problem is that they where installed at the stock
height. With the camshaft being reground to larger lifts (.250 is the
largest on a regrind, that's .388 at the valve) the bottom of the retainer
is hitting the top of the guide as the engine gains rpm. This will push the
guide threw the retaining ring and grip the valve at the radius of the
valve. Also we do not use seals with our guides because they are hand honed
to fit. Also, think about the angle the guide is in when mounted on the
engine, gravity says fall out not in.
Ron
----- Original Message -----
From: "George Swinford" <grs-pms@attbi.com>
Subject: Zenith-List: Don Walker's post on valve guides
> --> Zenith-List message posted by: "George Swinford" <grs-pms@attbi.com>
>
> Don:
>
> Great information! Thanks for taking the time to post it.
>
> George Swinford
>
> Do not archive.
>
>
Message 8
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| Subject: | Zenith list; 701 TRIM TAB SETTING |
--> Zenith-List message posted by: JERICKSON03E@aol.com
Hi List. Larry
I'm at the same stage and will use the airfoil neutral position as the
reference line.
That is, with both the horizontal stabilizer and elevator on the work table,
UPSIDE DOWN, the upper surfaces lay in the same plain. That seems to be a
neutral position for the combined airfoil. Stand off bars lift them up off of
the table, and support the elevator out over the side of the table.
The trim tab will be set to the same ~ neutral parallel plain, and the rod
adjusted for equal travel of the trim servo, to give trim tab it's up and
down required travel per the print. That will a starting position at least.
G Erickson
701 SP
do not archive
Message 9
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| Subject: | Re: 7075 instead for 6061 |
--> Zenith-List message posted by: "JGJ" <johann@gi.is>
Hello Bryan and list members.
Yes, that would be great if that was possible, but this kit was bought in
1988, and many drawings have been made since then. I would be happy to buy
all the parts that have changed since then, for the heavier engine
installment.
The cost to send it up here and the added 24,5% sales tax would make things
very expensive in the end.
The shipping companies charge you by the size and not the weights, because
it is more favorable for them.
If I can not get the parts, or use the 7075 material, I will end up by
ordering from Zenith. Until then, my project has halted.
I will ask Nick if I can use 7075 for the floor, and prime it with Zinc
primer.
Thanks to all the replied to my post.
Best wishes,
Johann G.
Iceland.
Zenith 701 kit.
Do not archive.
Message 10
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| Subject: | Re: 701 wing strut fairings? |
--> Zenith-List message posted by: "Ed Kramer" <edkramer@prodigy.net>
Bill,
Even though the 701 is a high drag design, strut fairings can reduce a lot
of drag. I'm planning on making alum strut fairings for my 701, although
that's a bit up the road. What I have in mind is making a jig out of wood
to form an airfoil shaped fairing to fit around the 4130 tubing. It then
gets riveted at the trailing edge of the fairing.
Ed Kramer
West Seneca, NY
CH 701: Rudder & left wing complete, just starting right wing.
edkramer@prodigy.net
----- Original Message -----
From: "Mileski William J CONT NPRI" <MileskiWJ@Npt.NUWC.Navy.Mil>
<1F1D28572ECAD211BC490008C75D71F5034E0112@NPRI54EXC18.NPT.NUWC.NAVY.MIL>
Subject: Zenith-List: 701 wing strut fairings?
> --> Zenith-List message posted by: Mileski William J CONT NPRI
<MileskiWJ@Npt.NUWC.Navy.Mil>
>
> Does anyone have any opinions on wing strut fairings on the 701.. talking
about formed alu sheet ones, intended to be riveted to the steel struts.
I'm a little concerned that the steel struts become hard to inspect with
these in place, or maybe all the rivet holes provide excessive opportunity
for moisture to invade the strut interior. Thoughts?
>
> Bill Mileski
> Middletown, RI
> 701 75%
>
>
> Bill Mileski
> Sonalysts, Incorporated
> 2 Corporate Place
> Middletown, Rhode Island 02842
> mileski@sonalysts.com
>
>
Message 11
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--> Zenith-List message posted by: "Doug Mattson" <dm10495@cedarnet.org>
How much clearance should I have between the prop and the front of the
cowling?
Doug Mattson 601XL
Message 12
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| Subject: | Fuel Pump - Aux Tanks... |
--> Zenith-List message posted by: "Don Honabach" <don@pcperfect.com>
Hey Guys,
I'm trying to work out the details for a 'keep it simple' installation
that will connect my wing tanks to my primary fuselage tank.
In short, I just want my two wing tanks to fill my primary header tank
which will be controlled by Left and Right Fuel Pump Switches. In order
to keep the fuel line runs simple my thought was to get 2 - Facet 40171
Solid State Fuel Pumps which have a built in check and foot valve so
that the fuel will not flow in either direction unless the pump is
turned on. Since these units won't permit fuel to flow in either
direction unless on, this would also eliminate my need to install a
manual fuel shutoff valve.
My main concern is that the lack of manual fuel shutoff valve might
raise some concerns during the inspection period since it seems like the
need for a shutdown valve is a major given. However, in this case, I
can't see why one would be needed and it would further simplify the
plumbing if one wasn't used on the aux to main fuel tank connections.
Thanks in advance for everyone's help.
Regards,
Don Honabach
Tempe, AZ - 601HDS
http://zodiac.pcperfect.com
Message 13
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| Subject: | Someone in Sacramento Ca. Area? |
--> Zenith-List message posted by: Gary Gower <ggower_99@yahoo.com>
Recieved This from another list... Someone in that area that could
check it out? I am sure we all like to know facts.
Saludos
Gary Gower
> From: <wecounselman3@yahoo.com>
> Date: Sun, 2 Mar 2003 09:46:47 -0800 (PST)
> Subject: Fatal Zenair Crash In Sacramento
>
> Sad news in the paper today. A Zenair Zenith or one
> of
> its clones has crashed in a field outside of
> Sacramento California killing the 50 yr old pilot
> and
> the 17 yr old boyfriend of the pilot's daughter. A
> farm worker found the wreckage scattered over a wide
> area. No explosion or flash was reported. From the
> photo it looks like a CH701 or 801 with a very long
> nose-possibly powered by an in-line engine. Reports
> say the plane was purchased in Canada. The pilot was
> a
> contracts attorney, former nurse and Viet Nam war
> vet.
> The passenger was a well-liked high school student
> who
> was on the varsity football and basketball team and
> wanted to be a pilot.
>
> Jake
>
> Also posted to homebuilt list.
>
http://taxes.yahoo.com/
Message 14
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| Subject: | Re: Someone in Sacramento Ca. Area? |
--> Zenith-List message posted by: "Steve Shuck" <stshuck@attbi.com>
Yes, the story is in the Sacramento Bee
http://www.sacbee.com/content/news/story/6203952p-7158660c.html
----- Original Message -----
From: "Gary Gower" <ggower_99@yahoo.com>
Subject: Zenith-List: Someone in Sacramento Ca. Area?
> --> Zenith-List message posted by: Gary Gower <ggower_99@yahoo.com>
>
> Recieved This from another list... Someone in that area that could
> check it out? I am sure we all like to know facts.
>
> Saludos
> Gary Gower
>
> > From: <wecounselman3@yahoo.com>
> > Date: Sun, 2 Mar 2003 09:46:47 -0800 (PST)
> > Subject: Fatal Zenair Crash In Sacramento
> >
> > Sad news in the paper today. A Zenair Zenith or one
> > of
> > its clones has crashed in a field outside of
> > Sacramento California killing the 50 yr old pilot
> > and
> > the 17 yr old boyfriend of the pilot's daughter. A
> > farm worker found the wreckage scattered over a wide
> > area. No explosion or flash was reported. From the
> > photo it looks like a CH701 or 801 with a very long
> > nose-possibly powered by an in-line engine. Reports
> > say the plane was purchased in Canada. The pilot was
> > a
> > contracts attorney, former nurse and Viet Nam war
> > vet.
> > The passenger was a well-liked high school student
> > who
> > was on the varsity football and basketball team and
> > wanted to be a pilot.
> >
> > Jake
> >
> > Also posted to homebuilt list.
> >
>
>
> http://taxes.yahoo.com/
>
>
>
>
>
>
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