Today's Message Index:
----------------------
1. 04:34 AM - Re: MicroAir antenna (Bob Miller)
2. 06:43 AM - Re: Cable ties (Use PVC instead) (Don Mountain)
3. 07:16 AM - Re: 701 structural difference (Chris Lewis)
4. 07:45 AM - Re: Unstable Tach (Hinde, Frank George (Corvallis))
5. 08:09 AM - Re: Cable ties (Inside the Wingtip) (N5SL)
6. 08:22 AM - Re: Sport pilot..One last time (Hinde, Frank George (Corvallis))
7. 10:26 AM - Re: Cable ties (Inside the Wingtip) (Don Mountain)
8. 10:51 AM - Re: Cable ties (Inside the Wingtip) (Edward Moody II)
9. 10:59 AM - Motor (Bob Unternaehrer)
10. 11:26 AM - Re: Motor (Dan Ribb)
11. 11:53 AM - 601HDS is now for sale (Hinde, Frank George (Corvallis))
12. 12:19 PM - Re: Motor (LarryMcFarland)
13. 12:34 PM - Re: Cable ties (Inside the Wingtip) (N5SL)
14. 01:00 PM - Re: Motor (0-290 Engine) (N5SL)
15. 01:24 PM - Re: Motor (0-290 Engine) (Hinde, Frank George (Corvallis))
16. 01:52 PM - Re: Motor (0-290 Engine) (N5SL)
17. 02:30 PM - Re: MicroAir antenna (Gary Gower)
18. 02:30 PM - Re: MicroAir antenna (Gary Gower)
19. 03:10 PM - Re: Motor (0-290 Engine) (Bob Unternaehrer)
20. 03:22 PM - Re: Re: Aileron stiffness and force - XL (Bill+Rose)
21. 03:45 PM - Re: Re: Aileron stiffness and force - XL (john H)
22. 05:23 PM - Re: Motor (0-290 Engine) (James Ferris)
23. 05:24 PM - Re: Re: Aileron stiffness and force - XL (George Swinford)
24. 06:04 PM - Axle drilling guide (Gdascomb@aol.com)
25. 06:28 PM - Forming Stabilizer Skin for XL (Ron Lendon)
26. 06:38 PM - Crimp or Fluting Question (LHusky@aol.com)
27. 06:46 PM - Crimp or Fluting Question (LHusky@aol.com)
28. 06:52 PM - Re: Unstable Tach (Tim & Diane Shankland)
29. 09:12 PM - Re: Aileron stiffness and force - XL (David X)
30. 09:12 PM - Re: Crimp or Fluting Question (Ron Lendon)
Message 1
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| Subject: | Re: MicroAir antenna |
--> Zenith-List message posted by: "Bob Miller" <tutuzulu@gmail.com>
Bryan,
I think this explains the discrepancy. My antenna is a solid piece of
stainless, no outer shell. So I'll insulate this from the airframe,
and ground the coax shield to the groundplane (i.e., the metal skin).
It was the least expensive antenna ACS offered, so we'll see how well
it does. It is similar to the "roll your own" that Aeroelectric
recommends.
Thanks,
Bob
On 3/19/06, Bryan Martin <bryanmmartin@comcast.net> wrote:
> --> Zenith-List message posted by: Bryan Martin <bryanmmartin@comcast.net>
>
> A quarter wave whip antenna needs a good ground plane to operate
> effectively. The shield conductor on a quarter wave whip antenna must be
> grounded at both ends, on the antenna end it must be grounded to a good
> ground plane. Most manufactured antennas have a metal base that the outer
> shell of the antenna connector is attatched to. In order to ensure that the
> shield is grounded, this metal base must be grounded. The actual radiating
> element inside the antenna assembly is connected to the center conductor of
> the antenna cable and isolated from the shell. The radiating element must
> not be grounded.
>
> --
> Bryan Martin
> N61BM, CH 601 XL, Stratus Subaru.
> do not archive.
>
>
> > --> Zenith-List message posted by: "Bob Miller" <tutuzulu@gmail.com>
> >
> > My quarter-wave antenna has delrin bushings to insulate the antenna
> > from the airframe, and Aeroelectric Connection states the antenna
> > should be insulated from the airframe.
> >
> > Yet, the manual for my MicroAir 760 radio says "For metal skin
> > aircraft....ensure that the antenna base and the coax shield are
> > firmly grounded to the skin of the aircraft. Ensure that any
> > anti-corrosion product, which may be used to seal the exterior
> > surface, does not isolate the antenna base from the airframe."
> >
> > Wouldn't this be the same as grounding the shield wire to the antenna?
> >
> > How have y'all done it?
> >
> > See you at Sun'nFun.
> >
> > --
> > Bob Miller
> > 601HD N722Z
> > Charlottesville, Virginia
> >
> >
>
>
--
Bob Miller
601HD N722Z
Charlottesville, Virginia
Message 2
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| Subject: | Re: Cable ties (Use PVC instead) |
--> Zenith-List message posted by: Don Mountain <mountain4don@yahoo.com>
Hello Scott,
The PVC makes your wing look very clean inside. Not much extra stuff like I seem
to have. Where I am having trouble tying the wires down is after they pass
up the wing through the main ribs in grommets, they make a turn and go through
a lightening hole in the main spar extention, just like you will have to do
after they come out of the end of your PVC. I have the flasher unit mounted on
the back side of the main spar like the instructions from ZAC have it. And
if I ever had to remove the wingtip marker lights, I can take out the headlight,
reach in through the headlight hole and unplug the wires from the flasher light
and running light, and remove the socket from the end of the wing. So I
was looking for a removal method of strapping down the wires through the lightening
hole.
Any chance of coming over sometime and looking at your plane. You are much farther
along than I am. And I need all the help I can get on the stuff not included
in ZAC's instructions.
Don
N5SL <nfivesl@yahoo.com> wrote:
Not sure what you mean by a main rib. My XL wings go
all the way to the fuselage and the PVC passes through
all of the ribs. This photo may show it better:
http://www.cooknwithgas.com/3_1_04_SomePlumbing.JPG
You can also see from this picture that I have
grommets installed for the trim wire. I haven't
installed the trim wire yet so I'm not dead set on
this yet.
For the passage through the center spar under the
yoke, I use split loom and use a cable clamps to hold
it in place.
---------------------------------
Brings words and photos together (easily) with
Message 3
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| Subject: | Re: 701 structural difference |
--> Zenith-List message posted by: "Chris Lewis" <christopherlewis@earthlink.net>
There are several differences, all marked with "SP" on the part number. Check
your plans and look for improvements throughout.
cl
--------
701 Scratch Builder
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=22838#22838
Message 4
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--> Zenith-List message posted by: "Hinde, Frank George (Corvallis)" <frank.hinde@hp.com>
Check to see how much side play you have on the distributor shaft and if
it might be coming into contact with the pick up...Or indeed could be
getting too far away. There should be very little side play (None!) but
the reality is a lot of them do. I'm thinking you could be hittng a
resonance frequency that pulls the shaft to one side.
Have you swapped the coils just for fun?...If you have a leaky low
tension side then this could in effect be grounding out the chip...It
would would be a quick test in any case if only to discount the theory.
Frank
-----Original Message-----
From: owner-zenith-list-server@matronics.com
[mailto:owner-zenith-list-server@matronics.com] On Behalf Of Tim & Diane
Shankland
Sent: Saturday, March 18, 2006 7:27 PM
Subject: Re: Zenith-List: Unstable Tach
--> Zenith-List message posted by: Tim & Diane Shankland
--> <tshank@core.com>
Frank,
Yes, I'm running a Stratus, so far the standard ignition starts and
runs. As I mentioned in a previous post my current working theory is a
vibration in the centrifugal advance. I do notice what seemed to be a
slight roughness that occurs with the tach instability. I'm going to put
the prop back on and run the engine up to a higher RPM to see if the
roughness is just in the mid range. If my theory is correct it will end
when the centrifugal advance hits it's high end stop.
Tim
Message 5
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| Subject: | Re: Cable ties (Inside the Wingtip) |
--> Zenith-List message posted by: N5SL <nfivesl@yahoo.com>
Don:
I follow you now. We are talking about the outboard
end of the wing or the "spar tip," 6W5-1.
For the small wires, I just drilled a hole and
installed a rubber grommet. The strobe wire is run
through the lightening hole like your wires. I
installed some rubber automotive trim that is used for
seams in car interiors. I got it from JC whitney and
it works well for anywhere you don't want wires to
come in contact with sharp edges. Here's a picture I
took while wiring up the lights in my right wing.
After the picture was taken I used a longer piece to
go all the way around the hole.
http://www.cooknwithgas.com/10_2005_Inside_Tip.JPG
Here's what it looks like all closed up with a green
LED light shining:
http://www.cooknwithgas.com/10_12_05_Wingtip.JPG
You can also see in the above photo an inspection
plate so I wouldn't have to go in through the light
holes to get to the strobes. I installed lights in
both wings for effective wig-wag lighting. I got the
wig-wag switch from periheliondesign.com.
You are welcome to come by anytime.
Scott Laughlin
Engine Installed.
> --> Zenith-List message posted by: Don Mountain
> Hello Scott,
>
> Where I am having trouble tying the wires down is
after they pass up the wing through the main ribs in
grommets, they make a turn and go through a lightening
hole in the main spar extention, just like you will
have to do after they come out of the end of your PVC.
So I was looking for a removal method of strapping
down the wires through the lightening hole.
Message 6
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| Subject: | Sport pilot..One last time |
--> Zenith-List message posted by: "Hinde, Frank George (Corvallis)" <frank.hinde@hp.com>
Loaded the 601 HDS up to close to Gross..went flying and as far as I
can tell it stalls at under 50mph...both on the Asi and on the GPS..>So
as far as I am concerned it is being advertised as "sport pilot
friendly".
Thanks for all your inputs..
Frank
I think you'll not be able to sell it as a Light Sport Aircraft,
having been registered as an Experimental, but you'll be able to sell it
to a person with the new Light Sport Aircraft pilot's license and they
can fly it same as any T-Craft or Cub because it does, in fact, stall at
50 or less.
I've found that my plane will stall at under 50 as well and am
considering dumping out from the Private to the drivers license medical.
I'm fine, but everything is an inevitablity these days.
Larry McFarland - 601HDS at www.macsmachine.com
do not archive
Message 7
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| Subject: | Re: Cable ties (Inside the Wingtip) |
--> Zenith-List message posted by: Don Mountain <mountain4don@yahoo.com>
Thanks again Scott,
Good idea about running the rubber strip around the hole. On another related topic
in this area, how did you tie up the loose wires to the headlights that are
required to pull the bulb out the front to unfasten for bulb replacements?
Right now I have a loop of wire that lays on the bottom skin when the bulbs are
put in place.
Don
N5SL <nfivesl@yahoo.com> wrote: --> Zenith-List message posted by: N5SL
Don:
I follow you now. We are talking about the outboard
end of the wing or the "spar tip," 6W5-1.
For the small wires, I just drilled a hole and
installed a rubber grommet. The strobe wire is run
through the lightening hole like your wires. I
installed some rubber automotive trim that is used for
seams in car interiors. I got it from JC whitney and
it works well for anywhere you don't want wires to
come in contact with sharp edges. Here's a picture I
took while wiring up the lights in my right wing.
After the picture was taken I used a longer piece to
go all the way around the hole.
http://www.cooknwithgas.com/10_2005_Inside_Tip.JPG
Here's what it looks like all closed up with a green
LED light shining:
http://www.cooknwithgas.com/10_12_05_Wingtip.JPG
You can also see in the above photo an inspection
plate so I wouldn't have to go in through the light
holes to get to the strobes. I installed lights in
both wings for effective wig-wag lighting. I got the
wig-wag switch from periheliondesign.com.
You are welcome to come by anytime.
Scott Laughlin
Engine Installed.
---------------------------------
Use Photomail to share photos without annoying attachments.
Message 8
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| Subject: | Re: Cable ties (Inside the Wingtip) |
--> Zenith-List message posted by: "Edward Moody II" <dredmoody@cox.net>
Before connecting the plugs atthe headlight fixture end, you can run the
wires through a piece of 1/4" fuel line to protect them from chafing.
Ed Moody II
Rayne LA
601XL working on tail
Message 9
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--> Zenith-List message posted by: "Bob Unternaehrer" <shilocom@mcmsys.com>
Does anyone have any knowledge of whether the Lycoming O-290 will work in the Zenair
601 XL. Have heard that they are not any heavier than the O-235, but that's
just rumor.
Blue Skies
Bob Unternaehrer
shilocom@mcmsys.com
Message 10
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--> Zenith-List message posted by: "Dan Ribb" <dan@danribb.com>
This is the best list I could find - look down the list a bit to the O-235
and O-290 entries.
http://www.wanttaja.com/avlinks/engines.htm#Engines3
- Dan
> Does anyone have any knowledge of whether the Lycoming O-290 will work in
> the Zenair 601 XL. Have heard that they are not any heavier than the
> O-235, but > that's just rumor.
> Blue Skies
> Bob Unternaehrer
> shilocom@mcmsys.com
Message 11
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| Subject: | 601HDS is now for sale |
--> Zenith-List message posted by: "Hinde, Frank George (Corvallis)" <frank.hinde@hp.com>
Hi all,
Just a note to say this sad day I placed my airplane on
www.barnstormers.com Listed as Sport pilot compliant. I will be sad to
see her go but I have moved onto finishing up my RV7a.
Let anyone you know who might like a well sorted 601.
Thanks
Frank
Message 12
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--> Zenith-List message posted by: LarryMcFarland <larry@macsmachine.com>
Bob,
I continue to watch the list of engines applied to the Zenith 601 series
increase in size with great interest.
I think you need to speak with Nick at Zenith on this one. The inside
upper firewall engine mounts that transition the
upper longerons to the firewall and top engine mount brackets are
probably the weakest link and most stressed parts
that keep the aircraft together. We've seen one 601 with a 912 engine,
some extreme corrosion, flown from a bad
concrete runway found these pieces failed. I wouldn't be comfortable
with that large an engine knowing the
actual size of the parts mentioned because it might very well hold up
static loaded, but applying the torque and horsepower
of an 0-290 over time on those parts could get someone killed. Please
check it out with Nick Heintz at Zenith 1-573-581-9000.
Respectfully,
Larry McFarland - 601HDS at www.macsmachine.com
Bob Unternaehrer wrote:
>--> Zenith-List message posted by: "Bob Unternaehrer" <shilocom@mcmsys.com>
>
>Does anyone have any knowledge of whether the Lycoming O-290 will work in the
Zenair 601 XL. Have heard that they are not any heavier than the O-235, but that's
just rumor.
>
>Blue Skies
>Bob Unternaehrer
>shilocom@mcmsys.com
>
>
>
>
>
>
>
>
>
Message 13
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| Subject: | Re: Cable ties (Inside the Wingtip) |
--> Zenith-List message posted by: N5SL <nfivesl@yahoo.com>
Don:
I did the same thing - tie-wrapped them together and
left some extra length. Ed's idea of using fuel hose
is a good one that I may try the next time I open up
the lights (thanks Ed!). I hope that is not for a
while since it's a real pain to get those screws in
just right. I used floating anchors on the second
wing, but the first one has the ZAC-specified fixed
anchor nuts.
Take care,
Scott Laughlin
--- Don Mountain <mountain4don@yahoo.com> wrote:
> Thanks again Scott,
>
> Good idea about running the rubber strip around the
> hole. On another related topic in this area, how
> did you tie up the loose wires to the headlights
> that are required to pull the bulb out the front to
> unfasten for bulb replacements?
Message 14
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| Subject: | Re: Motor (0-290 Engine) |
--> Zenith-List message posted by: N5SL <nfivesl@yahoo.com>
Here's what zenithair.com says on the 601XL engine
page:
"While all aircraft are designed within certain power
and engine weight guidelines, Chris Heintz did not
design the ZODIAC XL "around" a particular engine - to
maximize the customer's choice of installed
powerplant. Recommended power is 80 to 125
horsepower, up to 300 lbs. installed weight."
140 horsepower exceeds the recommended power.
Scott Laughlin
www.cooknwithgas.com
> Unternaehrer" <shilocom@mcmsys.com>
> >
> >Does anyone have any knowledge of whether the
> Lycoming O-290 will work in the Zenair 601 XL.
Message 15
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| Subject: | Motor (0-290 Engine) |
--> Zenith-List message posted by: "Hinde, Frank George (Corvallis)" <frank.hinde@hp.com>
I honestly think an XL with 140HP would be just fine...I mean there are
RV's flying around with over 300 and they are designed for 200HP max.
I was considering a 150HP conversion for the HDS for a while. Simply
means I will get off the ground in a hurry and cruise higher/faster.
The real question is the weight...if you think about it, the shock
loading on the engine mounts druing a hard landing is much more arduous
for the airframe than a bit of extra pull and torque reaction.
So how much does this beasty weigh?
Frank
Do not archive
-----Original Message-----
From: owner-zenith-list-server@matronics.com
[mailto:owner-zenith-list-server@matronics.com] On Behalf Of N5SL
Sent: Monday, March 20, 2006 12:58 PM
Subject: Re: Zenith-List: Motor (0-290 Engine)
--> Zenith-List message posted by: N5SL <nfivesl@yahoo.com>
Here's what zenithair.com says on the 601XL engine
page:
"While all aircraft are designed within certain power and engine weight
guidelines, Chris Heintz did not design the ZODIAC XL "around" a
particular engine - to maximize the customer's choice of installed
powerplant. Recommended power is 80 to 125 horsepower, up to 300 lbs.
installed weight."
140 horsepower exceeds the recommended power.
Scott Laughlin
www.cooknwithgas.com
> Unternaehrer" <shilocom@mcmsys.com>
> >
> >Does anyone have any knowledge of whether the
> Lycoming O-290 will work in the Zenair 601 XL.
Message 16
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| Subject: | Motor (0-290 Engine) |
--> Zenith-List message posted by: N5SL <nfivesl@yahoo.com>
263 lbs according to the website posted earlier.
--- "Hinde, Frank George (Corvallis)"
> So how much does this beasty weigh?
>
> Frank
Do Not Archive
Message 17
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| Subject: | Re: MicroAir antenna |
--> Zenith-List message posted by: Gary Gower <ggower_99@yahoo.com>
Bob,
That stainless steel antena comes with two pieces of insulate (cant remember
if solid plastic or some kind of ceramic) that insulates the antena from the
airframe, then also has a piece of metal that touches the airframe where you
conect the ground of the coaxial cable. I have one of this, but installed in
other ultralight several years ago, cant remeber exacty, but still working pefectly
for about 10 years, as a permanent antena for my handheld radio.
Saludos
Gary Gower.
Bob Miller <tutuzulu@gmail.com> wrote:
--> Zenith-List message posted by: "Bob Miller"
Bryan,
I think this explains the discrepancy. My antenna is a solid piece of
stainless, no outer shell. So I'll insulate this from the airframe,
and ground the coax shield to the groundplane (i.e., the metal skin).
It was the least expensive antenna ACS offered, so we'll see how well
it does. It is similar to the "roll your own" that Aeroelectric
recommends.
Thanks,
Bob
On 3/19/06, Bryan Martin
wrote:
> --> Zenith-List message posted by: Bryan Martin
>
> A quarter wave whip antenna needs a good ground plane to operate
> effectively. The shield conductor on a quarter wave whip antenna must be
> grounded at both ends, on the antenna end it must be grounded to a good
> ground plane. Most manufactured antennas have a metal base that the outer
> shell of the antenna connector is attatched to. In order to ensure that the
> shield is grounded, this metal base must be grounded. The actual radiating
> element inside the antenna assembly is connected to the center conductor of
> the antenna cable and isolated from the shell. The radiating element must
> not be grounded.
>
> --
> Bryan Martin
> N61BM, CH 601 XL, Stratus Subaru.
> do not archive.
>
>
> > --> Zenith-List message posted by: "Bob Miller"
> >
> > My quarter-wave antenna has delrin bushings to insulate the antenna
> > from the airframe, and Aeroelectric Connection states the antenna
> > should be insulated from the airframe.
> >
> > Yet, the manual for my MicroAir 760 radio says "For metal skin
> > aircraft....ensure that the antenna base and the coax shield are
> > firmly grounded to the skin of the aircraft. Ensure that any
> > anti-corrosion product, which may be used to seal the exterior
> > surface, does not isolate the antenna base from the airframe."
> >
> > Wouldn't this be the same as grounding the shield wire to the antenna?
> >
> > How have y'all done it?
> >
> > See you at Sun'nFun.
> >
> > --
> > Bob Miller
> > 601HD N722Z
> > Charlottesville, Virginia
> >
> >
>
>
--
Bob Miller
601HD N722Z
Charlottesville, Virginia
---------------------------------
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Message 18
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| Subject: | Re: MicroAir antenna |
--> Zenith-List message posted by: Gary Gower <ggower_99@yahoo.com>
Bob,
That stainless steel antena comes with two pieces of insulate (cant remember
if solid plastic or some kind of ceramic) that insulates the antena from the
airframe, then also has a piece of metal that touches the airframe where you
conect the ground of the coaxial cable. I have one of this, but installed in
other ultralight several years ago, cant remeber exacty, but still working pefectly
for about 10 years, as a permanent antena for my handheld radio. Is not
expensive, but works great.
Saludos
Gary Gower.
Bob Miller <tutuzulu@gmail.com> wrote:
--> Zenith-List message posted by: "Bob Miller"
Bryan,
I think this explains the discrepancy. My antenna is a solid piece of
stainless, no outer shell. So I'll insulate this from the airframe,
and ground the coax shield to the groundplane (i.e., the metal skin).
It was the least expensive antenna ACS offered, so we'll see how well
it does. It is similar to the "roll your own" that Aeroelectric
recommends.
Thanks,
Bob
On 3/19/06, Bryan Martin
wrote:
> --> Zenith-List message posted by: Bryan Martin
>
> A quarter wave whip antenna needs a good ground plane to operate
> effectively. The shield conductor on a quarter wave whip antenna must be
> grounded at both ends, on the antenna end it must be grounded to a good
> ground plane. Most manufactured antennas have a metal base that the outer
> shell of the antenna connector is attatched to. In order to ensure that the
> shield is grounded, this metal base must be grounded. The actual radiating
> element inside the antenna assembly is connected to the center conductor of
> the antenna cable and isolated from the shell. The radiating element must
> not be grounded.
>
> --
> Bryan Martin
> N61BM, CH 601 XL, Stratus Subaru.
> do not archive.
>
>
> > --> Zenith-List message posted by: "Bob Miller"
> >
> > My quarter-wave antenna has delrin bushings to insulate the antenna
> > from the airframe, and Aeroelectric Connection states the antenna
> > should be insulated from the airframe.
> >
> > Yet, the manual for my MicroAir 760 radio says "For metal skin
> > aircraft....ensure that the antenna base and the coax shield are
> > firmly grounded to the skin of the aircraft. Ensure that any
> > anti-corrosion product, which may be used to seal the exterior
> > surface, does not isolate the antenna base from the airframe."
> >
> > Wouldn't this be the same as grounding the shield wire to the antenna?
> >
> > How have y'all done it?
> >
> > See you at Sun'nFun.
> >
> > --
> > Bob Miller
> > 601HD N722Z
> > Charlottesville, Virginia
---------------------------------
Message 19
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| Subject: | Re: Motor (0-290 Engine) |
--> Zenith-List message posted by: "Bob Unternaehrer" <shilocom@mcmsys.com>
Not really sure on the weight. It's still in pieces, but suspect is well
under 300, but wonder if the 300 lbs is firewall forward, including prop,
cowl etc. etc. I'm thinking it should be around 260 motor and accessories,
then add prop and cowl and motor mount. Bob U.
----- Original Message -----
From: "Hinde, Frank George (Corvallis)" <frank.hinde@hp.com>
Sent: Monday, March 20, 2006 3:23 PM
Subject: RE: Zenith-List: Motor (0-290 Engine)
> --> Zenith-List message posted by: "Hinde, Frank George (Corvallis)"
<frank.hinde@hp.com>
>
> I honestly think an XL with 140HP would be just fine...I mean there are
> RV's flying around with over 300 and they are designed for 200HP max.
>
> I was considering a 150HP conversion for the HDS for a while. Simply
> means I will get off the ground in a hurry and cruise higher/faster.
>
> The real question is the weight...if you think about it, the shock
> loading on the engine mounts druing a hard landing is much more arduous
> for the airframe than a bit of extra pull and torque reaction.
>
> So how much does this beasty weigh?
>
> Frank
>
> Do not archive
>
> -----Original Message-----
> From: owner-zenith-list-server@matronics.com
> [mailto:owner-zenith-list-server@matronics.com] On Behalf Of N5SL
> Sent: Monday, March 20, 2006 12:58 PM
> To: zenith-list@matronics.com
> Subject: Re: Zenith-List: Motor (0-290 Engine)
>
> --> Zenith-List message posted by: N5SL <nfivesl@yahoo.com>
>
> Here's what zenithair.com says on the 601XL engine
> page:
>
> "While all aircraft are designed within certain power and engine weight
> guidelines, Chris Heintz did not design the ZODIAC XL "around" a
> particular engine - to maximize the customer's choice of installed
> powerplant. Recommended power is 80 to 125 horsepower, up to 300 lbs.
> installed weight."
>
> 140 horsepower exceeds the recommended power.
>
> Scott Laughlin
> www.cooknwithgas.com
>
> > Unternaehrer" <shilocom@mcmsys.com>
> > >
> > >Does anyone have any knowledge of whether the
> > Lycoming O-290 will work in the Zenair 601 XL.
>
>
Message 20
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| Subject: | Re: Aileron stiffness and force - XL |
--> Zenith-List message posted by: "Bill+Rose" <naumuk@alltel.net>
----- Original Message -----
From: "David X" <dxj@comcast.net>
Sent: Sunday, March 19, 2006 10:27 PM
Subject: Zenith-List: Re: Aileron stiffness and force - XL
David-
The person who owned the first Zenith I'd ever seen up close- a gorgeous
HDS, commented on the same left turn tendency. He said that if he had to do
it all over again, he'd put as much accessory weight as he could in the
right side. Consequently, I put my landing light and aileron trim in the
right wing.
Before cutting metal, I contacted EAA to find out if there was any reg
against putting a landing light in the right wing. According to the EAA
Technical Counselor, you can put the landing light anywhere, but he said the
problem was probably aerodynamic and not weight related.
As light as the Zenith is, there's a possibility that weight really is a
factor, but three people noticing the same tendency is not conclusive.
Anyone else want to "Weigh in"?
Bill
> I also noticed a tendency for the aircraft to turn left excessively. I
> thought it was my ailerons or a heavy wing, but turns out that it's my fat
> ass. Try flying with left tank near empty, right tank near full. Maybe it
> won't help, but it's easy enough to try.
>
> --------
> Zodiac 601 XL - CZAW Built - Rotax 912S
> DO NOT ARCHIVE
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p=22764#22764
>
>
>
Message 21
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|
| Subject: | Re: Aileron stiffness and force - XL |
--> Zenith-List message posted by: "john H" <professor71@hotmail.com>
After 140hrs on my 601HD I just installed aileron trim. Before, when flying
solo, the plane wanted to roll to the left. When carrying a passenger it
flies pretty even. If you are in the building process I would definately go
with the aileron trim. Much easier to do now than later.
John
>From: "Bill+Rose" <naumuk@alltel.net>
>To: <zenith-list@matronics.com>
>Subject: Re: Zenith-List: Re: Aileron stiffness and force - XL
>Date: Mon, 20 Mar 2006 18:20:56 -0500
>
>--> Zenith-List message posted by: "Bill+Rose" <naumuk@alltel.net>
>
>
>----- Original Message -----
>From: "David X" <dxj@comcast.net>
>To: <zenith-list@matronics.com>
>Sent: Sunday, March 19, 2006 10:27 PM
>Subject: Zenith-List: Re: Aileron stiffness and force - XL
>David-
> The person who owned the first Zenith I'd ever seen up close- a
>gorgeous
>HDS, commented on the same left turn tendency. He said that if he had to do
>it all over again, he'd put as much accessory weight as he could in the
>right side. Consequently, I put my landing light and aileron trim in the
>right wing.
> Before cutting metal, I contacted EAA to find out if there was any reg
>against putting a landing light in the right wing. According to the EAA
>Technical Counselor, you can put the landing light anywhere, but he said
>the
>problem was probably aerodynamic and not weight related.
> As light as the Zenith is, there's a possibility that weight really is
>a
>factor, but three people noticing the same tendency is not conclusive.
> Anyone else want to "Weigh in"?
>
> Bill
-
Message 22
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| Subject: | Re: Motor (0-290 Engine) |
--> Zenith-List message posted by: James Ferris <mijniljj@yahoo.com>
i think it would be about 235 lb, an o320 is 243lb and
the 036 is 265 lb.
Jim
--- Bob Unternaehrer <shilocom@mcmsys.com> wrote:
> --> Zenith-List message posted by: "Bob
> Unternaehrer" <shilocom@mcmsys.com>
>
> Not really sure on the weight. It's still in
> pieces, but suspect is well
> under 300, but wonder if the 300 lbs is firewall
> forward, including prop,
> cowl etc. etc. I'm thinking it should be around 260
> motor and accessories,
> then add prop and cowl and motor mount. Bob U.
>
> ----- Original Message -----
> From: "Hinde, Frank George (Corvallis)"
> <frank.hinde@hp.com>
> To: <zenith-list@matronics.com>
> Sent: Monday, March 20, 2006 3:23 PM
> Subject: RE: Zenith-List: Motor (0-290 Engine)
>
>
> > --> Zenith-List message posted by: "Hinde, Frank
> George (Corvallis)"
> <frank.hinde@hp.com>
> >
> > I honestly think an XL with 140HP would be just
> fine...I mean there are
> > RV's flying around with over 300 and they are
> designed for 200HP max.
> >
> > I was considering a 150HP conversion for the HDS
> for a while. Simply
> > means I will get off the ground in a hurry and
> cruise higher/faster.
> >
> > The real question is the weight...if you think
> about it, the shock
> > loading on the engine mounts druing a hard landing
> is much more arduous
> > for the airframe than a bit of extra pull and
> torque reaction.
> >
> > So how much does this beasty weigh?
> >
> > Frank
> >
> > Do not archive
> >
> > -----Original Message-----
> > From: owner-zenith-list-server@matronics.com
> > [mailto:owner-zenith-list-server@matronics.com] On
> Behalf Of N5SL
> > Sent: Monday, March 20, 2006 12:58 PM
> > To: zenith-list@matronics.com
> > Subject: Re: Zenith-List: Motor (0-290 Engine)
> >
> > --> Zenith-List message posted by: N5SL
> <nfivesl@yahoo.com>
> >
> > Here's what zenithair.com says on the 601XL engine
> > page:
> >
> > "While all aircraft are designed within certain
> power and engine weight
> > guidelines, Chris Heintz did not design the
> ZODIAC XL "around" a
> > particular engine - to maximize the customer's
> choice of installed
> > powerplant. Recommended power is 80 to 125
> horsepower, up to 300 lbs.
> > installed weight."
> >
> > 140 horsepower exceeds the recommended power.
> >
> > Scott Laughlin
> > www.cooknwithgas.com
> >
> > > Unternaehrer" <shilocom@mcmsys.com>
> > > >
> > > >Does anyone have any knowledge of whether the
> > > Lycoming O-290 will work in the Zenair 601 XL.
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
>
>
>
>
>
> browse
> Subscriptions page,
> FAQ,
> http://www.matronics.com/Navigator?Zenith-List
>
> Admin.
>
>
>
>
>
>
>
>
>
>
>
Message 23
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| Subject: | Re: Aileron stiffness and force - XL |
--> Zenith-List message posted by: "George Swinford" <grs-pms@comcast.net>
I notice a left turn tendency when flying solo in any of several flying club
Cessna 150s. These are well maintained airplanes, usually used for dual
instruction. I never noticed the left turn tendency with an instructor or
passenger. I wish the 150 had aileron trim.
George Swinford
Do not archive
----- Original Message -----
From: "Bill+Rose" <naumuk@alltel.net>
Sent: Monday, March 20, 2006 3:20 PM
Subject: Re: Zenith-List: Re: Aileron stiffness and force - XL
> --> Zenith-List message posted by: "Bill+Rose" <naumuk@alltel.net>
>
>
> ----- Original Message -----
> From: "David X" <dxj@comcast.net>
> To: <zenith-list@matronics.com>
> Sent: Sunday, March 19, 2006 10:27 PM
> Subject: Zenith-List: Re: Aileron stiffness and force - XL
> David-
> The person who owned the first Zenith I'd ever seen up close- a
gorgeous
> HDS, commented on the same left turn tendency. He said that if he had to
do
> it all over again, he'd put as much accessory weight as he could in the
> right side. Consequently, I put my landing light and aileron trim in the
> right wing.
> Before cutting metal, I contacted EAA to find out if there was any reg
> against putting a landing light in the right wing. According to the EAA
> Technical Counselor, you can put the landing light anywhere, but he said
the
> problem was probably aerodynamic and not weight related.
> As light as the Zenith is, there's a possibility that weight really is
a
> factor, but three people noticing the same tendency is not conclusive.
> Anyone else want to "Weigh in"?
>
> Bill
>
> > I also noticed a tendency for the aircraft to turn left excessively. I
> > thought it was my ailerons or a heavy wing, but turns out that it's my
fat
> > ass. Try flying with left tank near empty, right tank near full. Maybe
it
> > won't help, but it's easy enough to try.
> >
> > --------
> > Zodiac 601 XL - CZAW Built - Rotax 912S
> > DO NOT ARCHIVE
> >
> >
> >
> >
> > Read this topic online here:
> >
> > http://forums.matronics.com/viewtopic.php?p=22764#22764
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
>
>
Message 24
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|
| Subject: | Axle drilling guide |
--> Zenith-List message posted by: Gdascomb@aol.com
Travis Kobush has axle drilling guides for both the 601 & 701 for sale on
his site. $15 plus shipping. Also a bungee installation tool. Look under
"aircraft tools".
_http://www.kobushweldingandmachining.com/_
(http://www.kobushweldingandmachining.com/)
Message 25
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|
| Subject: | Forming Stabilizer Skin for XL |
--> Zenith-List message posted by: "Ron Lendon" <rlendon@comcast.net>
Scratch Builders
Thanks for all the good dialog, it's like this list anticipates my next building
phase.
On 3/19/06 I formed the skin for the stabilizer single handed :). Well I actually
have two hands and used them both and my feet and head at times.
You can follow the sequence at this site:
--------
Ron Lendon, Clinton Township, MI
Corvair Zodiac XL, ScrapBuilder
Do Not Archive
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=23042#23042
Message 26
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| Subject: | Crimp or Fluting Question |
--> Zenith-List message posted by: LHusky@aol.com
Can somebody tell me what size the crimp on the ribs should be. I am
thinking about 1/2 inch or 3/16 inch. I am going to build a tool tommorow, so
this
information would give me an idea.
Thanks,
Larry
"Going to finish tail this week"
Message 27
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| Subject: | Crimp or Fluting Question |
--> Zenith-List message posted by: LHusky@aol.com
I am wondering what the width of the crimp should be on the ribs. I am
guessing about 1/2 inch or 3/16 in wide. I am building a tool tommorow for
crimping or fluting. I want to finish my tail this week, so this information
would
help a lot.
Thanks,
Larry
Message 28
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| Subject: | Re: Unstable Tach |
--> Zenith-List message posted by: Tim & Diane Shankland <tshank@core.com>
Frank,
I had previously checked the shaft for play and found none, and it
doesn't appear to be coming into contact with the pickup. I did put the
prop back on yesterday and ran up the engine. I have my filter on now so
the tach is steady at all speeds. Engine smooth at 4000 RPM's and up
maybe a little roughness between 3000 and 4000, hard to say. Ran up to
5400 RPM, going to have to add a little pitch in the prop, I still had
some throttle left. I looked into swapping coils, but I didn't want to
have to dig into that wiring at this point. I might if I get some other
things done.
Tim
Hinde, Frank George (Corvallis) wrote:
>--> Zenith-List message posted by: "Hinde, Frank George (Corvallis)" <frank.hinde@hp.com>
>
>Check to see how much side play you have on the distributor shaft and if
>it might be coming into contact with the pick up...Or indeed could be
>getting too far away. There should be very little side play (None!) but
>the reality is a lot of them do. I'm thinking you could be hittng a
>resonance frequency that pulls the shaft to one side.
>
>Have you swapped the coils just for fun?...If you have a leaky low
>tension side then this could in effect be grounding out the chip...It
>would would be a quick test in any case if only to discount the theory.
>
>Frank
>
>-----Original Message-----
>From: owner-zenith-list-server@matronics.com
>[mailto:owner-zenith-list-server@matronics.com] On Behalf Of Tim & Diane
>Shankland
>Sent: Saturday, March 18, 2006 7:27 PM
>To: zenith-list@matronics.com
>Subject: Re: Zenith-List: Unstable Tach
>
>--> Zenith-List message posted by: Tim & Diane Shankland
>--> <tshank@core.com>
>
>Frank,
>Yes, I'm running a Stratus, so far the standard ignition starts and
>runs. As I mentioned in a previous post my current working theory is a
>vibration in the centrifugal advance. I do notice what seemed to be a
>slight roughness that occurs with the tach instability. I'm going to put
>the prop back on and run the engine up to a higher RPM to see if the
>roughness is just in the mid range. If my theory is correct it will end
>when the centrifugal advance hits it's high end stop.
>
>Tim
>
>
>
>
>
>
>
>
>
Message 29
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| Subject: | Re: Aileron stiffness and force - XL |
--> Zenith-List message posted by: "David X" <dxj@comcast.net>
P.S. I have the aileron trim :) It's trimmed nearly full right when I solo. It
takes less trim adjustment eventually when I burn off left tank first.
--------
Zodiac 601 XL - CZAW Built - Rotax 912S
DO NOT ARCHIVE
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=23071#23071
Message 30
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| Subject: | Re: Crimp or Fluting Question |
--> Zenith-List message posted by: "Ron Lendon" <rlendon@comcast.net>
Just make the tool from the builders guide. It gives you very good control over
the depth of the crimp. You can watch the metal straighten out while you are
using it. It only takes about one hour to make using 3/8" dia rod.
--------
Ron Lendon, Clinton Township, MI
Corvair Zodiac XL, ScrapBuilder
Do Not Archive
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=23072#23072
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