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larry(at)macsmachine.com
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 Posted: Mon May 29, 2006 11:17 am Post subject: Zodiac 601 HDS and Corvair engine |
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Jerome,
You have to see that hunk of aluminum to appreciate weight. It
simplifies gear installation, but
adds a lot of weight at the expense of strength to the structure. I
might add, several have done
the conversion, but even more weight is added doing it and you'd never
be able to comply with
Sport Pilot performance with all that extra. I think that the thinner
wing on the XL provides a
little gain in speed, but save the forward tilt canopy, the loss is
carrying capacity and ruggedness.
You should build the XL if you want that gear and speed. It is the
latest model in the Zenith
lineup.
Larry McFarland - 601HDS at www.macsmachine.com
jsimons2 wrote:
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Hi guys,
Thanks for the advice about the 2 DVD set from homebuildhelp.com.
However......................................it should be here tomorrow. Hehe, I ordered it last week. Figured it would be of use to study before I got in over my head.
To Ron Butterfield,
Nice to know someone lives that close to me. I see in the phone book you live on Cornwallis Ct.. We will deffinately have to share ideas once I start building. I'm still in the prep stages right now, you know, gathering tools, getting workshop ready, still have to purchase plans, ect.. I'm not too far away. I live on Carolina Rd. close to Five Points store.
Does anyone know how much can be "stolen" from the XL and used on the HDS. I know the canopy can be. What about the gear? The spring gear, I would think, would be lighter and stronger than the traditional HD/HDS gear. Any ideas?
Jerome
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=37175#37175
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jsimons2
Joined: 26 May 2006
Posts: 19
Location: Burlington, NC
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btucke73(at)yahoo.com
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| Posted: Mon May 29, 2006 7:01 pm Post subject: Zodiac 601 HDS and Corvair engine |
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Jerome,
As usual, Larry Mac is correct. The aluminum
spring gear is much heavier than the HDS bungee gear.
The XL gear comes in at 43 lbs. I built a slightly
smaller spring gear for my HDS that came in at under
28 lbs, but even that is heavier than the bungee gear
by a decent margin. It did, however, simplify the
installation, give me more prop clearance, eliminates
the future need for replacing bungees, and looks
better (Opinion). The difference between the Subaru
and the Corvair would just about absorb the weight
difference. I posted a few days ago about other
modifications I extracted directly from the XL plans.
R/
Brandon
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jeffrey_davidson(at)earth
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| Posted: Mon May 29, 2006 7:19 pm Post subject: Zodiac 601 HDS and Corvair engine |
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Does anyone know how much can be "stolen" from the XL and used on the HDS. I
know the canopy can be. What about the gear? The spring gear, I would think,
would be lighter and stronger than the traditional HD/HDS gear. Any ideas?
Jerome
I built my firewall on the 601 HD using the heavier XL parts for the shelf,
center channel gussets, horizontal U channel on the back, etc. I have the
XL canopy too which means that my instrument panel is shaped like the XL
panel. It is a little less wide than the original HD/HDS panel.
Jeff Davidson
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naumuk(at)alltel.net
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| Posted: Tue May 30, 2006 3:14 pm Post subject: Zodiac 601 HDS and Corvair engine |
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Jerome-
No HDS builder will dispute this. Once again, a trade off. How much time
and money is it going to take to scratchbuild a spring gear vs bungee? I
don't think raw stock that thick is going to come cheap!
Bill
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randy(at)shadycreekoutlaw
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| Posted: Tue May 30, 2006 5:37 pm Post subject: Zodiac 601 HDS and Corvair engine |
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I bought a 12' X 8" X 3/4" piece from Yarde Metals about 2 months ago for
less than $200 to build my XL gear...
Randy
http://www.n344rb.com
Do Not Archive
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btucke73(at)yahoo.com
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| Posted: Wed May 31, 2006 6:06 pm Post subject: Zodiac 601 HDS and Corvair engine |
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Snip:
Jerome-
No HDS builder will dispute this. Once again, a
trade off. How much time
and money is it going to take to scratchbuild a spring
gear vs bungee? I
don't think raw stock that thick is going to come
cheap!
Bill,
I bought a 10' length for less than $100, and
built the gear in less than 4 hours. The mounts took
a couple of hours as well, and required a milling
machine. I used a slightly thicker piece of aluminum
than the 701 uses. If you have the gear legs that
came with your kit, then go with the bungee gear. If
you are scratch building, and are interested in the
spring gear, e-mail me off list for more information.
R/
Brandon
Spinner installed today
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naumuk(at)alltel.net
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| Posted: Thu Jun 01, 2006 11:21 am Post subject: Zodiac 601 HDS and Corvair engine |
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Brandon-
Thanks, for the offer, but too late now. Center wing had maybe 2 days
work to do when I had to stop to build the garanger. My basement floor is
covered with 601 parts and assemblies- you can barely pick out a path to
walk.
Project work is on hold, garanger construction is priority 1. If I don't
get the plane out of the basement soon, I'll be a victim of SIDS. (Spouse
induced death syndrome).
Bill
do not archive
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