Today's Message Index:
----------------------
1. 03:16 AM - Questions reg. BRS and Subaru (Chris Weber)
2. 05:54 AM - Re: Matt maybe you can help me out (ac6qj@earthlink.net)
3. 07:35 AM - Roadway Notification Charges (James J. Cullen, Ph.D.)
4. 07:42 AM - New Builder Website (Matthew Mucker)
5. 10:59 AM - New To List (Clifton J. Bardwell)
6. 11:25 AM - Re: New To List (Carlos Sa)
7. 12:29 PM - Re: Stabilizer Ribs & Spar Connection (Ed Kramer)
8. 01:53 PM - Re: New To List (Jim and Lucy)
9. 02:28 PM - Re: Questions reg. BRS and Subaru (Peter Dunning)
10. 03:14 PM - Re: New To List (Matthew Mucker)
11. 03:58 PM - Re: New To List (Larry C. McFarland)
12. 04:25 PM - Re: Roadway Notification Charges (David Tellet)
13. 05:37 PM - Corvair on 701 (reineros)
14. 06:58 PM - Re: Corvair on 701 (ZSMITH3rd@aol.com)
15. 07:08 PM - Re: Questions reg. BRS and Subaru (Wayne McIntosh)
16. 07:44 PM - Re: Corvair on 701 (Edward T. Jeffko)
17. 09:14 PM - Re: New To List (Clifton J. Bardwell)
Message 1
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| Subject: | Questions reg. BRS and Subaru |
--> Zenith-List message posted by: "Chris Weber" <chrisoz@gmx.net>
Hello Listers,
scratchbuilding my second Zodiac I now reach the stage where I will start on
the engine mount, the fuselage is on its wheels and the tailfeathers mostly
done.
A friend has rebuilt an EA81 with dual carbs, hotter cams and Amex-reduction
for me. I plan to weld up a bed mount ala 912, but to do this I have to know
the distance of the engine from the firewall and approx. how high it is of
the floor of the plane. If one of you Stratus-drivers has got his (or her)
cowling of one of these days, could you just measure the distance between
the rear end of the left- or righthand cylinder head and the firewall, and
the distance of that spot on the firewall to the bottom of same? It would be
very much appreciated.
Have any of you guys put the radiator between the engine and firewall, and
if yes, how?
An other tricky one: have just bought a BRS 5 1050 Balistic System. It goes
where the fuse tank would normaly be, any ideas as to where to fix the
bridles to the airframe?
The front ones obviously go to the upper engine mounts, but what about the
rear points?
At the moment I toy with the idea of hooking the bridles up to stainless
steel cables and connect these to the rear spar inside of the fairings.
Any reasons why not?
I have managed to sell my firstborn, 601 UL 912 'Small and Humble', with 52
hours on the clock, for a price that I don't want to convert to US$ as the
Australian Peso is to pathetic at the moment. It still sits in my hangar but
soon it will be gone, and that is a very weird feeling.
Guess I have to speed up number two a bit, otherwise the withdrawal symptoms
get to severe. First flight should be early March, we'll see.
Happy landings,
Chris
601 UL 912 "Small and Humble"
601 HD Sub, X minus 3 month (???)
Message 2
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| Subject: | Matt maybe you can help me out |
--> Zenith-List message posted by: ac6qj@earthlink.net
If you're going to fabricate PCBs then it might be interesting to see
how many people on the list might be interested. A bulk order might
reduce cost...
DO NOT ARCHIVE
>--> Zenith-List message posted by: "Eric Tauch" <erictauch@attbi.com>
>
>Hi Bill,
>
>Check the following links:
>
>http://www.adapters.com/catalog/BGA_solutions.pdf
>
>www.adapter-tech.com
>
>http://www.emulation.com
>
>http://www.arieselec.com
>
>Depending on your debug system, and the number of pins on the package, you
>may need
>an adapter that is mounted to a small PCB to break-out the pins to something
>you can
>easily get onto. The smaller BGA packages are on 0.8mm spacing up to about
>1.27mm.
>These adapters are not cheap, and typically run in the hundreds of dollars
>(maybe not
>so much for a low pin count package).
>
>I would be interested in what you are working on, as I want a wing leveler
>on my
>601XL, but decided I would go with the TRU TRAC system ($$). I am an EE,
>and design
>and fabricate PCB for a living on a contract basis, so I can help you out
>with that
>part of it. Nowadays, the fabrication and assembly of PCB is dirt cheap due
>to
>fabrication overseas (Im sorry to say, as this is not good for our American
>economy),
>if productization or assembly of a few protos is desired.
>
>Send me the product link, as I would be interested in looking at it.
>
>Eric Tauch
>erictauch@attbi.com
>
>-----Original Message-----
>From: owner-zenith-list-server@matronics.com
>[mailto:owner-zenith-list-server@matronics.com]On Behalf Of Bill Morelli
>To: zenith-list@matronics.com
>Subject: Zenith-List: Matt maybe you can help me out
>
>
>--> Zenith-List message posted by: Bill Morelli <billvt@together.net>
>
> Matt,
>
>I've been a long time user and contributor to the Zenith List you maintain
>and really appreciated what it has done for my building and post building
>support.
>
>I have an electrical question maybe you could help me with or steer me in
>the right direction if you don't mind.
>
>I am working on a wing leveler for my Zodiac and am will be using a MEMS
>chip (solid state gyro). The chip only comes in a BALL GRID ARRAY package.
>What I need is a source for a prototype board that will accept BGA type
>devices so I can then plug that into my breadboard for debugging purposes.
>
>Do you know of such a source? If not, do you have any engineer type
>acquaintances that may be able to help?
>
>Regards,
>Bill
>
--
Best regards, Ray Montagne
Cupertino, CA
Zenith CH601-XL
Builder #4939
Message 3
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| Subject: | Roadway Notification Charges |
--> Zenith-List message posted by: "James J. Cullen, Ph.D." <flyingcrownranch@lvcm.com>
Hi Group:
I was somewhat concerned about the rather exhorbitant notification charge
that one of our members had incurred from Roadway -- especially in light of
the fact that I have a 601 XL tail section kit en route. So, I called the
local Roadway Terminal to find out what gives. The dispatcher that I talked
to seemed a bit miffed that I would try to avoid this charge and kept
putting me on hold while she talked to other customers. However, I finally
got the following information out of her.
If you're being scheduled for home delivery, they're going to charge you the
notificaton fee because, in her words, they have to handle your package
twice -- once to offload it and once to reload it on the local truck. (I
thought that this was what th local delivery fee was for!) Anyway, Roadway
seems to feel that it is OK for them to charge you an additional $30+ to
call you and schedule the delivery.
They will also levy this charge against you if you are picking up the
package at the terminal and they call you to notify you of your package's
arrival.
I asked her if there was any way that I could avoid the fee. She wasn't
happy I asked this question. However, the drill goes like this. Once the
package is enroute, call the local Roadway terminal where you are going to
pick it up and find out what the actual scheduled delivery date is. Be
advised that the delivery date that you get from Roadway's internet
notification system is just their "standard delivery date" -- not the actual
delivery date. Apparently, the internet notification system advises you of
a delivery date based on standard routes and transit times but does not
track the package well enough to nail the date down accurately -- despite
the fact that the internet system tracks and notifies you depot-by-depot as
the package moves. Go figure.. My package is scheduled to arrive on 12/11
but I keep getting 12/12 off their internet system. This makes Roadway look
good -- they delivered ahead of "schedule." It also gives them an extra day
to contact you and levy their notification charge.
Once the local Roadway office gives you the real delivery date, call them
after 7AM local time on the morning of the delivery to schedule your pick-up
time. This will allow them to set your crate on their dock where you can
easily get at it at the appointed time. If you do this, they can't levy the
notification charge.
This seems like a Roadway scam to me. Considering that ZAC is a sizeable
shipper with Roadway, I would hope that they might be willing to use their
influence to help their customer avoid these unnecessary charges.
Tailwinds,
Jim
Message 4
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| Subject: | New Builder Website |
--> Zenith-List message posted by: "Matthew Mucker" <matthew@mucker.net>
Well, now that I've got the homebuider's directory up, I might as well
announce that I have a new website up to chronicle a scratchbuilt CH640.
The URL is a very original www.matthewmucker.com.
-Matt
Message 5
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--> Zenith-List message posted by: "Clifton J. Bardwell" <clif@duck.org>
Hi all,
As the subject says, I'm new to the list (actually I've been lurking for
a couple of months). I got interested in plane kits with the first
episode of "A Plane Is Born" and have been doing research on which kit
I'd like to build.
One of the first kits I found, and one of the two I'm definitely leaning
toward, is the Zenith Zodiac CH640. (The other is the Kitfox Series 7).
I tend to favour the CH640 because I like the possibility of 4 seat and
the 150 mph cruise.
I had been planning on building from the kit, but recent postings by
Matthew Mucker almost has me convinced to try and build from scratch. I
do have a few questions, though.
1. One of the things that cause me to think about building from scratch
is the ability to build my own bending brake. But that is for creating
straight bends. How would one go about bending a rib as shown here
(third image down):
http://www.zenair.com/kit.html
2. For any parts I can't/don't want to fabricate, can I buy these parts
individually from Zenith/ third party?
3. Not necessarily based on the 640, but how much can I really save if I
build from scratch rather than from kit?
4. Can one person build a kit? If not, how much is a helper required?
5. The specs shows a height of 7' 4". If I build this in my garage
which has a 7' door, will I be able to move it in and out by just
tilting the tail down?
6. How does the panel compare to the CH801? Larger? Smaller? (Having
to do with panel layout software which lists CH801 but not CH640)
Thanks for your indulgence.
Clif
Pre-builder
Message 6
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--> Zenith-List message posted by: Carlos Sa <carlosfsa@yahoo.com>
Hi, Clif
As a scratch builded, I think I can manage to answer a couple of your questions...
> 1. One of the things that cause me to think about building from scratch
> is the ability to build my own bending brake. But that is for creating
> straight bends. How would one go about bending a rib as shown here
> (third image down):
> http://www.zenair.com/kit.html
(a) You don't need to own a bending brake, just need a few hours alone with one
:o)
After looking around for months, I found one next to the airport I fly from (Bush
Caddy operates there).
Look around for machine shops that might have one, and rent it if necessary.
You could have a small one built (4 feet) for small stuff. There are free plans
on
the web - search the archives, I posted a link a few weeks ago.
(b) ribs are easily built, see pictures here:
http://members.tripod.com/zodiacbuilder/pictures.htm
> 2. For any parts I can't/don't want to fabricate, can I buy these parts
> individually from Zenith/ third party?
Yes, you can.
> 3. Not necessarily based on the 640, but how much can I really save if I
> build from scratch rather than from kit?
Many people will say that if you are building to save money, you are doing the
wrong
thing (as there are many decent, used A/C around for a reasonable price).
On the other hand, if I had acquired the parts I bent at Bush Caddy, it would have
cost me more than US$1,000. I spent about US$100 on materials, a lot of my time
and
a couple of boxes of donuts for the guys at Bush Caddy...
Of course, it takes oodles of time to do anything. As you get more experienced,
it
takes less oodles... :o)
> 4. Can one person build a kit? If not, how much is a helper required?
I did not get there yet, but occasionally you'll need an extra pair of hands to
help
with bigger parts.
Whatever you choose, have fun with it.
Carlos
CH601 HD, plans
Montreal, Canada
Post your free ad now! http://personals.yahoo.ca
Message 7
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| Subject: | Re: Stabilizer Ribs & Spar Connection |
--> Zenith-List message posted by: "Ed Kramer" <edkramer@prodigy.net>
----- Original Message -----
From: "W.R. "Gig" Giacona" <wr.giacona@cox-internet.com>
Subject: Zenith-List: Stabilizer Ribs & Spar Connection
> --> Zenith-List message posted by: "W.R. \"Gig\" Giacona"
<wr.giacona@cox-internet.com>
>
> The plans say the Stabilizer ribs are attached with 2 A4s but you are
> going through skin, doublers & rib. That seems a little thick for an A4.
Gig,
I can't address your actual problem on the stabilizer, but the grip range
for an A4 rivet is from 0-6mm and an A5 is from 0-8mm. Hope that helps.
Ed Kramer
West Seneca, NY
CH 701
edkramer@prodigy.net
Message 8
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--> Zenith-List message posted by: Jim and Lucy <jpollard@mnsi.net>
Hi Clif
Welcome to the Zenair list!!
You are doing the right thing monitoring the lists. This is a great
way to find out what you want to build.
I believe that the 640 is a kit only. The plans may be more geared
towards assembly of the factory kit. At least thats the way it was
a couple years ago.
1 The ribs are usually made by sandwiching the aluminum between
2 pieces of plywood that is cut to the proper shape. The aluminum
extends beyond the plywood and the aluminum is taped around
the plywood forms with a small hammer.
2 You can purchase any single parts you need from Zenair as long
as you own a serial number for the aircraft the parts are for.
3 You could save about half the cost by plans building in exchange
of about 4 or 5 times the building time. This depends how much
experience you have of course and the amount of machinery you have in
your shop.
4 I have put the engine and wings on by myself but it is nice to have a
helper
for these operations. There are times like this that 2 people make the
operation
easier but it is not necessary.
5 Just take the rudder off to get it out your garage door or tip it down
on the
tail.
6 I drew the instrument panel using a cad program called deltacad. It is easy
to use and you can get a rough idea how to fit everything. It is not
a big
concern until you are much farther along with your project. Not sure how
the 2 planes panels compare but I expect they are close to the same size.
Jim Pollard
Merlin Ont
ch601hds
ea81
At 01:57 PM 12/9/2002 -0500, you wrote:
>--> Zenith-List message posted by: "Clifton J. Bardwell" <clif@duck.org>
>
>Hi all,
>
>As the subject says, I'm new to the list (actually I've been lurking for
>a couple of months). I got interested in plane kits with the first
>episode of "A Plane Is Born" and have been doing research on which kit
>I'd like to build.
>
>One of the first kits I found, and one of the two I'm definitely leaning
>toward, is the Zenith Zodiac CH640. (The other is the Kitfox Series 7).
>I tend to favour the CH640 because I like the possibility of 4 seat and
>the 150 mph cruise.
>
>I had been planning on building from the kit, but recent postings by
>Matthew Mucker almost has me convinced to try and build from scratch. I
>do have a few questions, though.
>
>1. One of the things that cause me to think about building from scratch
>is the ability to build my own bending brake. But that is for creating
>straight bends. How would one go about bending a rib as shown here
>(third image down):
> http://www.zenair.com/kit.html
>
>2. For any parts I can't/don't want to fabricate, can I buy these parts
>individually from Zenith/ third party?
>
>3. Not necessarily based on the 640, but how much can I really save if I
>build from scratch rather than from kit?
>
>4. Can one person build a kit? If not, how much is a helper required?
>
>5. The specs shows a height of 7' 4". If I build this in my garage
>which has a 7' door, will I be able to move it in and out by just
>tilting the tail down?
>
>6. How does the panel compare to the CH801? Larger? Smaller? (Having
>to do with panel layout software which lists CH801 but not CH640)
>
>Thanks for your indulgence.
>
>Clif
>Pre-builder
>
>
>_-
Message 9
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| Subject: | Re: Questions reg. BRS and Subaru |
--> Zenith-List message posted by: "Peter Dunning" <peterd@metec.co.nz>
Hi Chris
Your posting re BRS raised my eyebrows and probably
that of others....
1. Your CH601HD is 1200lbs, so I am not sure why
you selected the BRS 1050 instead of the 1200.
Did you buy it earlier for the 601UL you just sold ?
2. Bridle fixtures: In front there are two attachment
points either side - lower firewall
and in front of the rudder pedals.
At the rear it is just behind the
rear zee, (but in front of the step
fixing points) and connected to the
lower longerons.
NB. BRS reinforcement angles are
used to distribute the shock
loadings on deployment at all
attachment points.
3. Location of chute. If I understand your posting, the
chute is located under the glare shield in front of the
instrument panel ? Not so with my BRS...it goes
on the rear parcel shelf in the cockpit.
4. Stainless steel cables. BRS supply all synthetic cables
as part of the kit for the 601. S/S wouldnt do much for
weight considerations.
I would strongly recommend you contact BRS who
can advise on installation. They have been very
helpful to me.
Soft landings
Peter Dunning
CH601HD/912S/BRS1200
DO NOT ARCHIVE
>An other tricky one: have just bought a BRS 5 1050 Balistic System. It goes
>where the fuse tank would normaly be, any ideas as to where to fix the
>bridles to the airframe?
>The front ones obviously go to the upper engine mounts, but what about the
>rear points?
>At the moment I toy with the idea of hooking the bridles up to stainless
>steel cables and connect these to the rear spar inside of the fairings.
>Any reasons why not?
Message 10
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--> Zenith-List message posted by: "Matthew Mucker" <matthew@mucker.net>
Clifton,
>
> I had been planning on building from the kit, but recent postings by
> Matthew Mucker almost has me convinced to try and build from scratch. I
> do have a few questions, though.
Don't let my postings persuade you that I am necessarily sane or competent.
I haven't yet started my building but I do sincerely believe that building
the 640 from scratch is do-able. Of course, I haven't seen the plans yet so
I'm not one to talk. However, Mathieu knows I'm planning on building from
scratch and hasn't attempted to dissuade me. (Mathieu is Chris Hientz' son
and supervises operations at AMD, where the 640 kit is produced.)
>
> 1. One of the things that cause me to think about building from scratch
> is the ability to build my own bending brake. But that is for creating
> straight bends. How would one go about bending a rib as shown here
> (third image down):
> http://www.zenair.com/kit.html
See this page from my old website when I was planning on building a CH601:
http://www.mucker.net/zodiac/logs/making_wing_ribs_13.htm
>
> 2. For any parts I can't/don't want to fabricate, can I buy these parts
> individually from Zenith/ third party?
Yes. You can buy from Zenith. I'm certainly planning on buying the canopy
from them.
>
> 3. Not necessarily based on the 640, but how much can I really save if I
> build from scratch rather than from kit?
Good question. I initially got turned on to scratchbuilding as a way to
save money, but now want to do it just to do it.
>
> 4. Can one person build a kit? If not, how much is a helper required?
Most builders on the list seems to indicate it's mainly a one-person job.
>
> 5. The specs shows a height of 7' 4". If I build this in my garage
> which has a 7' door, will I be able to move it in and out by just
> tilting the tail down?
7'4? What? I stood by the thing and swear it wasn't that tall. You can
probably get it out of the garage easily by not putting the rudder on till
you get it to the airport.
>
> 6. How does the panel compare to the CH801? Larger? Smaller? (Having
> to do with panel layout software which lists CH801 but not CH640)
The firewall is the same as the 801, that's been confirmed by Zenith. I
can't say about the IP, tho.
-Matt
Message 11
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--> Zenith-List message posted by: "Larry C. McFarland" <larrymc@qconline.com>
Clifton,
Welcome to the list! The process of scratch building
would especially depend on what your experience in making things
draws from. If you're and engineer or a serious tinkerer, you'll do well.
If you have no tools or background in this, it could be more difficult.
The kit is definitely the fastest, and it may indeed be the least expensive,
considering the time you'd spend making the tooling for everything sheet
metal.
The 640 is a kit-only from my understanding, but you'd be able to make parts
from the plans if something got messed up if plans are as complete as the
ones
provided for the HD and HDS. Much harder to do with an RV.
You could spend over 15K for a kit or 4K for raw materials and the engine
and avionics
will add another 10K or more to your project. A large part of the
difference will be
spent on tooling and jigging just to go scratch. This will be reduced by
another
3K in tools and plywood. That leaves you a savings of maybe 8 or 9k after
spending
the next 5 years building.
Nothing wrong with any of that if it's what you'd rather be doing more than
anything else.
One person can easily get by with very little help if you think way ahead.
The rudder can be removed rather easily for the transition to the airport if
necessary.
A bend brake can be made or borrowed, but it's definitely much easier when
it's sitting
there just looking at you for any part large or small. The time I saved
making my own
brake more than saved and equivalent amount of time that might have been
spent traveling
back and forth to the sheet metal shop.
In any case, I wish you well and hope you can make a decision
that satisfies.
If you need further assist, please visit my website and journal.
Larry C. McFarland - 601hds @ http://www.macsmachine.com
>
> 1. One of the things that cause me to think about building from scratch
> is the ability to build my own bending brake. But that is for creating
> straight bends. How would one go about bending a rib as shown here
> (third image down):
> http://www.zenair.com/kit.html
>
> 2. For any parts I can't/don't want to fabricate, can I buy these parts
> individually from Zenith/ third party?
>
> 3. Not necessarily based on the 640, but how much can I really save if I
> build from scratch rather than from kit?
>
> 4. Can one person build a kit? If not, how much is a helper required?
>
> 5. The specs shows a height of 7' 4". If I build this in my garage
> which has a 7' door, will I be able to move it in and out by just
> tilting the tail down?
>
> 6. How does the panel compare to the CH801? Larger? Smaller? (Having
> to do with panel layout software which lists CH801 but not CH640)
>
> Thanks for your indulgence.
>
> Clif
> Pre-builder
>
>
Message 12
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| Subject: | Re: Roadway Notification Charges |
--> Zenith-List message posted by: "David Tellet" <telletdl@erols.com>
Watch out also for the after delivery charges. Both the wing kit and the
fuselage kit came on Roadway, I paid them for the delivery, and then a week
or so later Roadway sent me an additional bill for a "corrected" weight. I
paid since I couldn't really argue the point, but it was a bit annoying.
You might want to run past some truck scales and get a weight so they can't
play this card.
David Tellet 601HD working on center section.
----- Original Message -----
From: "James J. Cullen, Ph.D." <flyingcrownranch@lvcm.com>
Subject: Zenith-List: Roadway Notification Charges
> --> Zenith-List message posted by: "James J. Cullen, Ph.D."
<flyingcrownranch@lvcm.com>
>
> Hi Group:
>
> I was somewhat concerned about the rather exhorbitant notification charge
> that one of our members had incurred from Roadway -- especially in light
of ...
<snip>
Message 13
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--> Zenith-List message posted by: "reineros" <reineros@pacbell.net>
Has anyone used a corvair on a 701? I apears it would be about 40 to 50 lbs. heaver
but my wallet would be much heaver than anything the factory seams to recomend
in 4 cycle.
Message 14
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| Subject: | Re: Corvair on 701 |
--> Zenith-List message posted by: ZSMITH3rd@aol.com
ZAC hac a sample Weight & Balance work sheet available on their web site.
Zed
701/R912
do not archive
Message 15
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| Subject: | Re: Questions reg. BRS and Subaru |
--> Zenith-List message posted by: "Wayne McIntosh" <mcintosh3017@insightbb.com>
Chris,
Get in touch with BRS, I am sure they have installed chutes in a 601
before.
Wayne McIntosh Lafayette IN
----- Original Message -----
From: "Chris Weber" <chrisoz@gmx.net>
Subject: Zenith-List: Questions reg. BRS and Subaru
> --> Zenith-List message posted by: "Chris Weber" <chrisoz@gmx.net>
>
> Hello Listers,
> scratchbuilding my second Zodiac I now reach the stage where I will start
on
> the engine mount, the fuselage is on its wheels and the tailfeathers
mostly
> done.
> A friend has rebuilt an EA81 with dual carbs, hotter cams and
Amex-reduction
> for me. I plan to weld up a bed mount ala 912, but to do this I have to
know
> the distance of the engine from the firewall and approx. how high it is of
> the floor of the plane. If one of you Stratus-drivers has got his (or her)
> cowling of one of these days, could you just measure the distance between
> the rear end of the left- or righthand cylinder head and the firewall, and
> the distance of that spot on the firewall to the bottom of same? It would
be
> very much appreciated.
> Have any of you guys put the radiator between the engine and firewall, and
> if yes, how?
>
> An other tricky one: have just bought a BRS 5 1050 Balistic System. It
goes
> where the fuse tank would normaly be, any ideas as to where to fix the
> bridles to the airframe?
> The front ones obviously go to the upper engine mounts, but what about the
> rear points?
> At the moment I toy with the idea of hooking the bridles up to stainless
> steel cables and connect these to the rear spar inside of the fairings.
> Any reasons why not?
>
> I have managed to sell my firstborn, 601 UL 912 'Small and Humble', with
52
> hours on the clock, for a price that I don't want to convert to US$ as the
> Australian Peso is to pathetic at the moment. It still sits in my hangar
but
> soon it will be gone, and that is a very weird feeling.
> Guess I have to speed up number two a bit, otherwise the withdrawal
symptoms
> get to severe. First flight should be early March, we'll see.
>
> Happy landings,
>
> Chris
> 601 UL 912 "Small and Humble"
> 601 HD Sub, X minus 3 month (???)
>
>
Message 16
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| Subject: | Re: Corvair on 701 |
--> Zenith-List message posted by: "Edward T. Jeffko" <riovista@bossig.com>
I thought about a corvair in a 701 for my next project so I asked ZAC a HP
and weight question. They recommend a max of 100 HP and 200lbs. weight.
Anything heavier would require ballast in the tail. They indicated no
structural problems with the heavier engine, only W&B. You're going to lose
50 to 100 lbs. of useful load if you stay within gross weight, depending on
how you build the engine. WW dosen't recommend a 701 as a good airframe for
the vair. Didn't say why.
Ed
> From: "reineros" <reineros@pacbell.net>
> Reply-To: zenith-list@matronics.com
> Date: Mon, 9 Dec 2002 17:35:27 -0800
> To: <zenith-list@matronics.com>
> Subject: Zenith-List: Corvair on 701
>
> --> Zenith-List message posted by: "reineros" <reineros@pacbell.net>
>
> Has anyone used a corvair on a 701? I apears it would be about 40 to 50 lbs.
> heaver but my wallet would be much heaver than anything the factory seams to
> recomend in 4 cycle.
>
>
>
>
>
>
Message 17
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--> Zenith-List message posted by: "Clifton J. Bardwell" <clif@duck.org>
Well, based on all the posts, it's official. I'm going with the 640 as
a scratch built.
Thanks to all for your quick replies. I will try to address everyone's
comments in one post.
First of all, I'd like to share a bit more about myself and my plans.
Currently my main hobby is woodcraft (ala Norm Abram), so I am not a
stranger to building by plans by a long stretch :). I truly enjoy
building and have always wanted to fly so when I discovered "A Plane Is
Born" I figured, what the heck.
I am not currently a pilot, although that will come in time. My main
reason for wanting to build, is just to build with flying a close
second. My original decision with wanting to go with a kit was due to
what I saw as complexities in the metal working. I'm sure someone will
wonder, if I'm into wood working why not just build a wood plane. Well,
to tell you the truth, I'd much prefer the structural integrity of
metal. I know how weak wood can be, even if it appears strong.
At any rate...
---
Carlos Sa,
I would prefer to build my own bending brake.
I found a neat one which I believe I can build here:
http://www3.sympatico.ca/murray.j/tools.htm
I've already thought of some improvements for that design. If push
comes to shove, though, I do know of a fabricator in the area which I'm
sure can bend the long pieces.
Thanks ever so much for the link to the pictures of bending the curves.
That explains a lot and lead to my final decision.
I am not building to save money, although every little bit helps. The
reason I was leaning toward a kit is because of things like the rib,
which I thought required specialized machines.
---
Ed Ulrich,
Thanks for the comment about the address. It's no relation to Ducks
Unlimited, it's actually a family thing.
See my comment to Carlos above about the bending brake.
Carlos provided a great link which explains how to bend the ribs. It
seems very easy. When looking at the picture on the ZAC site, it looked
like it required specialized equipment.
Thanks for the offer for fabricating items I can't. I'll certainly keep
it in mind.
"Gazillions"? Is that a financial term? :) Based on your post, as
well as others, it sounds like it's definitely a money saver to scratch
build.
---
Jim Pollard,
According to the Zenith web site, the $495 drawings and manual is "All
you need to 'scratch-build' the ZODIAC CH 640". One hopes that this is
in fact the case.
The rib fabrication was explained very well in a link Carlos provided.
Thanks for the reasonable estimate of money savings. Time to build is
not an issue. I'd rather save money and build more. :)
---
Matthew Mucker,
It wasn't your posting specifically. It was more of your link to the
plans for the bending brake. :) Although I will probably build a
different design, your web site allowed me to know that it could be
done. The more I can do myself, and not have to outsource, the happier
I'll be.
The one piece that I was most interested in buying (as opposed to
building) was the canopy. I'm glad to know that I can indeed buy.
---
Larry C. McFarland,
As I've said elsewhere in this post, the time building is not an issue.
I enjoy building things. I was more worried about requiring specialized
tools that cost a lot with no (or little) resale value. If I can enough
save money by building from scratch, then I would prefer it over a kit.
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