Today's Message Index:
----------------------
1. 04:41 AM - Re: Re: airfoil coordinates? (David Downey)
2. 07:06 AM - Re: 701 Brake Lines (LarryMcFarland)
3. 08:27 AM - Wheel pants speed (Frank Derfler)
4. 09:09 AM - Re: Wheel pants speed (C Smith)
5. 01:18 PM - 701 unusable fuel (Chuck Deiterich)
6. 01:50 PM - Re:701 Brake Lines (ruruny@aol.com)
7. 02:59 PM - Re: 701 unusable fuel (jetboy)
8. 03:24 PM - Nylon Conduit Routing in Wing (dgardea(at)gmail.com)
9. 03:46 PM - Re: Nylon Conduit Routing in Wing (burbby)
10. 04:03 PM - Re: Nylon Conduit Routing in Wing (Edward Moody II)
11. 04:25 PM - Re: Wheel pants speed (Bryan Martin)
12. 06:55 PM - Re: airfoil coordinates? (Ron Lendon)
Message 1
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| Subject: | Re: airfoil coordinates? |
yes, I am XL#6406. I downloaded the plots for the form blocks and checked them
against the prints after adding in the spear components and material wall thicknesses
to the form block outlines.. As you know, the flaps are thicker than the
basic airfoil - and I want to lay out the basic airfoil (at the root only).
That would be a combination of the nose rib, rear ribs and aileron/flap. Do you
have the prints?
--------
Ron Lendon, Clinton Township, MI
Corvair Zodiac XL, ScrapBuilder ;-)
http://www.mykitlog.com/rlendon
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=120284#120284
Dave Downey
Harleysville (SE) PA
Zodiac 601XL/Corvair?
---------------------------------
Food fight? Enjoy some healthy debate
in the Yahoo! Answers Food & Drink Q&A.
Message 2
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| Subject: | Re: 701 Brake Lines |
Dan,
Look carefully at "bulkhead fittings" which are either straight,
45-degree or right angle. I'm sure
one of these will help you grab the sheet and get to the other side
without difficulty.
Larry McFarland 601HDS at www.macsmachine.com
txpilot wrote:
>
> I'm in the process of putting the brake lines in my 701. I have drilled a hole
in the cabin floor as noted on the bottom diagram page 7-F-9 and installed
a grommet. The problem is the bend required to make the brake line go under the
seat, through this hole, and around to the back side of the main landing gear
spring is quite a sharp bend. It seems like this sharp bend will eventually
stress out the brake line. (I have the 'old' style gear spring that attaches
onto forks).
>
> I'm thinking about installing two 90 degree elbows - one above and one below
the cabin floor, to make a 'Z' bend. Has anyone else tried this or has a better
suggestion how to handle this? If the 'Z' bend works, how can I secure the
elbows to the cabin floor?
>
> Thanks,
>
> Dan Ginty
>
>
>
Message 3
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| Subject: | Wheel pants speed |
The topic of an increase in speed from wheel pants has been analyzed down to
the microscopic level on discussion groups such as the Grumman Gang. With a
Grumman, which does not have a steerable nose wheel, the primary benefit of
fairings seems to be to keep the nose wheel straight. We 601 drivers don't
face that challenge.
Here are some some conclusions I've drawn over the years of reading about
and flying with and without wheel pants:
* I note from photo archives of the Reno Air
Races<http://www.airrace.org/indexJS.php>that if professional air
racers didn't have retractable gear they had
pants. I bet they tested and proved their worth.
* Not all wheel pants are created equal. For example, DMA claims their
pants <http://dmaspeedmods.airweb.net/landinggear.htm> (for Grummans) are
significantly better than any other design. That debate still rages, but
clearly what can be said of one set of pants might not fit into another set
of pants.
* They make the airplane look spiffy! I believe that eye-candy is their *
primary* benefit. In my mind, any discussion of pants on a 601 is primarily
about cool looks and the extra knots (or not) is the excuse.
* If you have a flat tire on landing, you can litter the runway with
expensive fiberglass. And, I had a flat tire on my 3rd landing in my 601.
Bad tube or bad installation? One of the other. But, the fact is that
everything would have been a lot worse / expensive if I had pants on the
601
* Preflight is much harder. Checking the air / filling with air is much
more difficult.
* IF you are not the "mechanic", " certificate holder" etc (depending on the
class) and can't take off your own pants, then the annual is more expen$ive
by an hour or more.
* They add some weight. In a 601 it's almost *always* about weight more
than speed.
So, in my case I chose to go pantless. Yes, my 601 would look cooler with
pants, but the benefits overcome the gains.
Frank Derfler
--See my Blog at http://MostlyFlying.Blogspot.com
--My great gifts for guys at http://www.greatguybooks.com
--My information for pilots at http://www.flyinflorida.com
--My tips for boaters at http://www.keysboater.com
Message 4
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| Subject: | Wheel pants speed |
_____
From: owner-zenith-list-server@matronics.com
[mailto:owner-zenith-list-server@matronics.com] On Behalf Of Frank Derfler
Sent: Sunday, June 24, 2007 11:26 AM
Subject: Zenith-List: Wheel pants speed
* IF you are not the "mechanic", " certificate holder" etc (depending on the
class) and can't take off your own pants,
I imagine that quite a few other things get expensive as well if you can't
take off your own pants! <grin>
So, in my case I chose to go pantless. Yes, my 601 would look cooler with
pants, but the benefits overcome the gains.
Frank Derfler
But frank, isn't it a bit chilly in the winter? and in front of the
children?!?!
<chuckle> sorry, couldn't resist....
CS
do not archive
Message 5
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| Subject: | 701 unusable fuel |
My 701 ten gallon wing tanks (no header tank) actually hold 10.8 gallons
each.
When the nose is low or in a slip the tank fuel outlet can be uncovered
if the fuel is too low.
In general, what is the unusable quantity of fuel for the wing tanks in
a CH 701, particularly for landing?
Thanks,
Chuck D.
N701TX
Message 6
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| Subject: | Re:701 Brake Lines |
Dan,
I'm wondering why Zenith changed this without providing 90 deg elbows. If yo
u do this you could
just bend a small piece of .025 aluminum drill 2 holes for rivets to mount t
o floor and a larger hole
with the proper grommet to support the 90 deg elbow should work good. I did
a similar thing
with fuel lines and electrical wires to support them. I did my brake line th
e old way(out the side)=C2-but it leaves the line open to be caught by a f
oot getting into the airplane, probably why they changed it.
=C2-http://www.701builder.com/electrical10.htm=C2-this page shows how my
line takes a more gradual turn and does not intefere with the rudder cable
or anything else.
http://www.701builder.com/fuelsystem04.htm=C2-this page shows the bracket
to support the rubber fuel hose under the pilots seat. Scroll down a few pic
s.
http://www.701builder.com/07WingLines.htm=C2-this page shows the same thin
g supporting pitot, fue, and electrical lines. Theres no reason why a 90 deg
elbow could be mounted here and the line going straight down. You could mak
e one above and one below, with the line going thru the grommet.
I don't see the possibility of doing a gradual turn up and down=C2- withou
t intefering with the seat bottom
or somthing else.
hope this helps some.
Brian
Long Island, NY
I'm thinking about installing two 90 degree elbows - one above and one below
the
cabin floor, to make a 'Z' bend.=C2- Has anyone else tried this or has a b
etter
suggestion how to handle this?=C2- If the 'Z' bend works, how can I secure
the elbows
to the cabin floor?
Thanks,
Dan Ginty
________________________________________________________________________
AOL at AOL.com.
Message 7
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| Subject: | Re: 701 unusable fuel |
Chuck,
Mine are the same measured at 42.5 litres aside = 10.86 US gal each. I have unported
the outlet when running off the tank in nose low and wing down attitudes
where the fuel level was lower than 1/4, so I am cautious about feeding off the
one side if the level is less than about 12 litres (3 gal) and switch to both
for landings. I have cruised on one tank down to 1/8 without problems. The
5 times the engine shutdown were all during manouvers with lots of wing down nose
down descent, and it recovered when the I levelled out, after a delay maybe
20 seconds. In some cases I switched tanks. Have not encountered this in normal
landing approaches, but nowadays I select both for landing with low levels
as an undershoot is not a satisfactory option. Suppose you could add a forward
outlet port and tee it lower down like some Cessnas, or make a larger gascolator
Zenair style as its like a little header tank ( I have the ACS type )
Ralph
--------
Ralph - CH701 / 2200a
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=120395#120395
Message 8
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| Subject: | Nylon Conduit Routing in Wing |
Working on wiring up my left wing (601XL) and I bought this nylon wire conduit
from the Van's site. I'd like to keep it out of the wing locker area if possible
and also clear of the two aft rear rib holes for the aileron cables. I'm thinking
of routing the conduit at the point recommended on 6-LLO-1, 480mm aft of
the spar and 40mm down from the top flange of the rear rib. See the pic attached.
My question is will this area support a hole large enough for my conduit
(about 7/8") without negatively impacting the structure of the rear rib. I may
call ZAC tomorrow to get their input, but I'm sure someone has been down this
path before. Thanks.
Dave Gardea
--------
Dave Gardea
601XL - Corvair
working on wings
http://home.comcast.net/~davegardea/
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=120399#120399
Attachments:
http://forums.matronics.com//files/p6240030_858.jpg
Message 9
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| Subject: | Re: Nylon Conduit Routing in Wing |
This is where I placed my conduit for electrical. Maybe this will help.
Thanks
Gary
Millsap, TX
---------------------------------
Now that's room service! Choose from over 150,000 hotels
in 45,000 destinations on Yahoo! Travel to find your fit.
Message 10
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| Subject: | Re: Nylon Conduit Routing in Wing |
Dave what I did was to suspend my conduit in the first set of lightening
holes aft of the spar. I made hangers out of 6061-T6 .016" and drilled
them out with a Unibit to accept the correct grommet for the OD of my
conduit. The hangers are rivetted to each rib along the way. I used
thinwall aluminum tubing fron AS for the conduit. The connectors at the
wingroot will enter the fuselage under the front seat support where the
spar bolt access plate lets me get to them. I think the photo is small
enough not upset anyone.
Dred
----- Original Message -----
From: dgardea(at)gmail.com
To: zenith-list@matronics.com
Sent: Sunday, June 24, 2007 5:24 PM
Subject: Zenith-List: Nylon Conduit Routing in Wing
<dgardea@gmail.com>
Working on wiring up my left wing (601XL) and I bought this nylon wire
conduit from the Van's site. I'd like to keep it out of the wing locker
area if possible and also clear of the two aft rear rib holes for the
aileron cables.
Message 11
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| Subject: | Re: Wheel pants speed |
On Jun 24, 2007, at 11:26 AM, Frank Derfler wrote:
>
> * IF you are not the "mechanic", " certificate holder" etc
> (depending on the class) and can't take off your own pants, then
> the annual is more expen$ive by an hour or more.
>
Even on certificated aircraft, the pilot-owner is allowed to remove
the wheel pants on his airplane. He is, in fact, allowed to remove
any non-structural items such as inspection panels, cowlings and
fairings in order to perform certain types of routine maintenance on
his airplane or prepare it for the annual inspection.
On Experimental Amateur Built or E-LSA aircraft, there is no
certification of any kind required to remove wheel pants from the
airplane or perform maintenance. Certification is only required to
perform the annual inspection.
--
Bryan Martin
N61BM, CH 601 XL,
RAM Subaru, Stratus redrive.
do not archive.
Message 12
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| Subject: | Re: airfoil coordinates? |
As I recall having layed out the forms, the rear rib line becomes a straight line
towards the rear. If you are using a cad system maybe try placing the radius
of the rear flap/aileron at the correct distance/orentation from the spar and
join it to the rear ribs using straight lines to that radius in 3D space.
I know nothing about designing airfoils so. . . FWIW
--------
Ron Lendon, Clinton Township, MI
Corvair Zodiac XL, ScrapBuilder ;-)
http://www.mykitlog.com/rlendon
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=120432#120432
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