Today's Message Index:
----------------------
1. 12:51 PM - Re: 701 plans vs kit (roy vickski)
2. 01:57 PM - Re: vw twin powered zenith (Grant Corriveau)
3. 01:57 PM - Re: vw twin powered zenith (Grant Corriveau)
4. 02:03 PM - Accuracy of Wing specifications (paulrod36)
5. 04:06 PM - Re: Accuracy of Wing specifications (wizard-24@juno.com)
6. 05:55 PM - CH 701 Roof Installation (Jeff Reuschle)
Message 1
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| Subject: | Re: 701 plans vs kit |
--> Zenith-List message posted by: roy vickski <rvickski@yahoo.com>
I am plan building.
I have alloted 5 years for the project.
the plans are well enough done, one must be able to
read prints and pay attention to details.
Plans building is costeffective if one has the tools
or access to them, (8'brake 16ga capacity, 10' shear )
. I have a 4'box & pan 16Ga with radius dies and a 30"
18ga shear and access to the above. anything less and
it can be a frustrating struggle. You will need hand
tools also, figure about a grand. Oh yeah drill press
and band saw and disc/belt sander is a given .ZAC has
partial material list for plansbuilders at its site,
get quote on sheetgoods from local metal supplier.
ZAC has a price list for individual replacement parts
and components as well.
The learning curve is steep at first, the skills can
be learned, it helps to be mechanically minded and
detail oriented, and where I live, having a heated
garage.
Roy Szarafinski
Tail feathers done, front fuse ready, rear fuse going
together, the rest mostly blanked out and some of that
formed. Been at it since July 02, about 20hrs per
week.
--- g t <wauwis2002@yahoo.com> wrote:
> --> Zenith-List message posted by: g t
> <wauwis2002@yahoo.com>
>
> I have been researching this idea for years.
> I am getting ready to take the plunge, or at least
> get my feet wet.
Message 2
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| Subject: | Re: vw twin powered zenith |
--> Zenith-List message posted by: Grant Corriveau <grantC@ca.inter.net>
> One question though? What did he do to get the proper balance. Or did the
> weight of the two engines forward of the center of gravity make up for the
> weight of one up front.
>
>
> John W. Tarabocchia
> (407) 709-7255
The engines are closer to the c of g in this location, so the forward moment
could be equivalent of one engine on the firewall. As always, the final
placement of the battery, etc, would have to be calculated to keep the
proper envelope.
I wonder what he's doing for fuel? There seems to be an original fuselage
tank, but is that enough? I suspect not and that there must also be some
wing tanks... that's a great thing about the Zodiac - room for fuel tanks
all over the place - the fuselage, the wing-locker tanks, the leading edge
tanks... And the nose dome on the previous firewall would provide an
alternate location for baggage...
do not archive
--
Grant Corriveau
Montreal
Zodiac 601hds/CAM100
C-GHTF
Message 3
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| Subject: | Re: vw twin powered zenith |
--> Zenith-List message posted by: Grant Corriveau <grantC@ca.inter.net>
on 03/02/11 18:39, HINDE,FRANK (HP-Corvallis,ex1) at frank.hinde@hp.com
wrote:
> Can you imagine trying to fly the thing on 50hp (less at altitude) with a
> large measure of assymetric thrust?
>
> Think I would prefer the glider method!
When I was working as a flight instructor, I made sure that my students for
the multi-engine licence realized that by taking on a second engine they
were DOUBLING their chances for an engine failure!
And furthermore, the aircraft characteristics on one engine could be
downright deadly if not properly handled. The statistics I had at the time
revealed that after an engine failure, the survival rate in a SINGLE engine
aircraft was higher than that in a twin. Why? I suppose because the single
engine pilot usually pulled off an acceptable landing (i.e. walked away),
whereas the twin pilot stood a very good chance of losing control while
flying on one engine...?
fwiw - maybe a 4 engine Zodiac? Yes! that's what I need ;-)
do not archive,
--
Grant Corriveau
Montreal
Zodiac 601hds/CAM100
C-GHTF
Message 4
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| Subject: | Accuracy of Wing specifications |
--> Zenith-List message posted by: "paulrod36" <paulrod36@msn.com>
I'm finally around to doing the wings, and started the left wing, but I'm puzzled-----
On P.6-W-8, it says (as I understand it) that with the main spar at 77.5
degrees, the rear end of rear rib 1 should be 92.5mm up from the table surface.
This here now don't compute nohow, as, with the rib flange flat against
the spar, the rear end is 80mm up from the surface. For those who've already done
their XL wings, I pose the following:
1. Should I bend the rib flange against the spar until I get the required distance?
Or should I shim the lower part of the flange? Should I just continue, taking
it on faith that when all the flanges are flush to the spar, the end result
will be a wing true enough to fly?
2. How does anybody get 92.5 mm on a shaky piece of aluminum in the first place?
And, if we're going for that sort of accuracy, what should the temperature of
the aluminum be, when measured? :-) Since everything else has fit right on
after I figured out which side should be up,, I'm tepmted to just press on, but
I'd feel more confident with a little input here.
Thanks, Paul Rodriguez
601XL-Corvaired
Message 5
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| Subject: | Re: Accuracy of Wing specifications |
--> Zenith-List message posted by: wizard-24@juno.com
> Should I just continue, taking it on faith that when all the flanges
> are flush to the spar, the end result will be a wing true enough to
> fly?
That's what I did. After fumbling with the shims and trying to get the
EXACT distance just right, when I adjusted one, the others didn't work
out right -- and vice versa. I finally got as close as I could and went
with it, I guess trusting that the ribs supplied by ZAC were made
correctly. And when I skinned the wing, everything looked right. I guess
I'll find out first hand one day.
> 2. How does anybody get 92.5 mm on a shaky piece of aluminum in the
> first place?
In my opinion, you can't. And ZAC even says the same thing, when they
remind us we're not building fighter planes. There are tolerances on this
stuff....in fact, someone on the list wrote a while back that ZAC put a
601 together without measuring anything, and it flew great. I hope that's
true. :)
Mike Fortunato
601XL
Message 6
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| Subject: | CH 701 Roof Installation |
--> Zenith-List message posted by: "Jeff Reuschle" <jreuschle@mindspring.com>
Does anyone out there know the trick to installing the polycarbonate roof on a
701?
I have increased the bowed up area about 3/4 inch because I needed more headroom.
I can't seem to be able to pull it down to the tubing and fselage without having
"extra" sheet at the end. I've tried a couple of methods without success.
Maybe one of you has had this problem & conquered it?
Thanks for you help
Jeff Reuschle
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