Today's Message Index:
----------------------
1. 04:52 AM - Re: 801 Fuel Tanks (Tom)
2. 05:34 AM - Re: 701 Cruise performance (was FWF kit for Jabiru) (MacDonald Doug)
3. 06:20 AM - Re: Tensioning Cable (nick@aoaircrafters.com)
4. 06:57 AM - Re: Re: 801 Fuel Tanks (Dave Ruddiman)
5. 07:12 AM - Re: 801 Fuel Tanks (Kenny Aron)
6. 07:23 AM - Re: Re: 801 Fuel Tanks (Bill Cardell)
7. 07:23 AM - Re: Tensioning Cable (Robert Taylor)
8. 07:36 AM - Re: Tensioning Cable (LarryMcFarland)
9. 07:41 AM - Re: Tensioning Cable (LarryMcFarland)
10. 10:04 AM - Re: Tensioning Cable (Matt & Jo)
11. 10:13 AM - Re: vortex generators (Leo Gates)
12. 12:14 PM - Re: vortex generators (George Swinford)
13. 12:31 PM - Door 7E-9 (Elwood140@aol.com)
14. 01:14 PM - Extra AS5 rivet in the 601 XL tail kit? (Todd Osborne)
15. 03:35 PM - Re: Extra AS5 rivet in the 601 XL tail kit? ()
16. 03:51 PM - Flap Hinge - A Question for the Scratchbuilders Out There (Doug Moellering)
17. 04:12 PM - Re: Extra AS5 rivet in the 601 XL tail kit? (Craig Payne)
18. 05:15 PM - Re: Door 7E-9 (Mark Sherman)
19. 06:01 PM - Re: Door 7E-9 (Geoff Heap)
20. 06:28 PM - Re: vortex generators (Gary Gower)
21. 06:29 PM - 601 Main Gear ()
22. 06:35 PM - Re: Flap Hinge - A Question for the Scratchbuilders Out There (Tim & Diane Shankland)
23. 06:40 PM - Re: Leak test for fuel tanks. (Gary Gower)
24. 07:32 PM - Re: Re: FWF kit for JabiruFWF kit for Jabiru (nyterminat@aol.com)
25. 07:40 PM - Re: Door 7E-9 (Robin Bellach)
26. 08:25 PM - Re: Leak test for fuel tanks. (Dave Ruddiman)
27. 10:17 PM - Re: 701 Cruise performance (was FWF kit for Jabiru) (jetboy)
Message 1
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| Subject: | Re: 801 Fuel Tanks |
--> Zenith-List message posted by: "Tom" <tomp@cogeco.ca>
One more note on this is the type of fuel system you are using, for my injection
system I don't need a return line and that may make a difference as to the type
of gas cap you use. Find out from the manufacturer what system they would
recommend. I'm running a IO-360 with a Precision Ex fuel injection which doesn't
use a return line.
--------
Tom CH801
http://tompizza.webhop.net
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=65937#65937
Message 2
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| Subject: | Re: 701 Cruise performance (was FWF kit for Jabiru) |
--> Zenith-List message posted by: MacDonald Doug <dougsnash@yahoo.com>
I cannot coment on the cruise performance of the 701
with expirience only with what I've been told. That
being said...
The VNE of the CH-701 is 115 MPH. With some basic
cleanup (ie strut fairings)and a 100 HP Rotax, the 701
will do the advertised 105MPH. The problem is, the
plane will reach 115 VNE if you aren't paying close
attention to the airspeed and let the nose down a
little. I don't know what power setting the 912s is
running at to deliver those numbers though.
This information came from a very good friend of mine
that did the initial flight tests in a scratch built
100hp 701 for another builder. He has no reason to
inflate the numbers.
Take my statements for what they are worth(not much).
Doug MacDonald
CH-701 scratch builder
NW Ontario, Canada
Working on seat back and baggage floor
do not archive
__________________________________________________
Message 3
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| Subject: | Tensioning Cable |
--> Zenith-List message posted by: nick@aoaircrafters.com
Is this really practical?
~nick :)
> -------- Original Message --------
> Subject: RE: Zenith-List: Tensioning Cable
> From: "Craig Payne" <craig@craigandjean.com>
> Date: Wed, October 04, 2006 6:16 pm
> To: <zenith-list@matronics.com>
>
>
> The commercial tension gauges cost hundreds of dollars..As usual Larry McFarland
had a nice solution:
>
> www.macsmachine.com/images/tjh/cabletools/full/tension0.gif
> www.macsmachine.com/images/tjh/cabletools/full/tension3.gif
> www.macsmachine.com/images/tjh/cabletools/full/tension4.gif
> www.macsmachine.com/images/tjh/cabletools/full/tenscalbrate.gif
>
> -- Craig
>
>
>
>
Message 4
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| Subject: | Re: 801 Fuel Tanks |
--> Zenith-List message posted by: "Dave Ruddiman" <pacificpainting@comcast.net>
Tom,
I have, or will have, when it gets built, the same (more or less) engine. I
drove down to Ameritech and talked to the owner, salesman and girls in the
office. They build the XP I0 360 Xtreme engines. I did ask about the return
line for fuel engine since I had heard it was necessary for the Subaru
engine installations. As you said, it is not. It looks like that the stock
caps will be succifient.
Dave
----- Original Message -----
From: "Tom" <tomp@cogeco.ca>
Sent: Thursday, October 05, 2006 4:50 AM
Subject: Zenith-List: Re: 801 Fuel Tanks
> --> Zenith-List message posted by: "Tom" <tomp@cogeco.ca>
>
> One more note on this is the type of fuel system you are using, for my
> injection system I don't need a return line and that may make a difference
> as to the type of gas cap you use. Find out from the manufacturer what
> system they would recommend. I'm running a IO-360 with a Precision Ex fuel
> injection which doesn't use a return line.
>
> --------
> Tom CH801
> http://tompizza.webhop.net
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p=65937#65937
>
>
>
Message 5
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| Subject: | Re: 801 Fuel Tanks |
I'm also looking at a fuel-injected engine and found the following article
useful:
http://www.sdsefi.com/air50.htm
There's a fuel-system diagram a page or so down that includes a fuel return
line from the header tank to the main tanks, which I notice you didn't
mention in your setup. This may be optional given the volume of the header
tank, but think about it.
N801KA (reserved)
Working on wings.
--
\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/-\|/
--Kenny A.
http://websites.expercraft.com/kennya/
http://users3.ev1.net/%7Ekennyarn/
Message 6
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| Subject: | Re: 801 Fuel Tanks |
--> Zenith-List message posted by: "Bill Cardell" <Bill@flyinmiata.com>
Mfgs have gotten away from return lines on FI engines due to concerns
about vapor lock. The fuel picks up heat from the engine bay as it
travels through the loop and heats the fuel in the tank. The newer stuff
mounts the fuel pressure reg in the tank and runs at a constant higher
pressure, rather than having the fuel pressure reg acting as a
controlled bleed back to the tank, referenced to manifold pressure.
FWIW.
Do not archive
TurboDog's Dad
Bill Cardell
www.flyinmiata.com
1-800-FLY-MX5S
970-242-3800
Message 7
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| Subject: | Re: Tensioning Cable |
--> Zenith-List message posted by: "Robert Taylor" <flydad57@neo.rr.com>
Sure, it's practical! Especially if you want to tension your cables, but
don't want to spend the bucks for a "store bought" tension gauge. Larry is
a can-do kind of guy, and he's not afraid to put his mind to work and
fabricate something that will work for him. That can be part of the fun in
the "homebuilt" arena. Doesn't work for everyone. I'm glad he shares his
ideas with the rest of us.
Now, I would imagine that AOA has a PRO-fessional tension gauge. :)
Bob Taylor
Wadsworth, Ohio
----- Original Message -----
From: <nick@aoaircrafters.com>
Sent: Thursday, October 05, 2006 9:17 AM
Subject: RE: Zenith-List: Tensioning Cable
> --> Zenith-List message posted by: nick@aoaircrafters.com
>
> Is this really practical?
>
>
> ~nick :)
>
>
>> -------- Original Message --------
>> Subject: RE: Zenith-List: Tensioning Cable
>> From: "Craig Payne" <craig@craigandjean.com>
>> Date: Wed, October 04, 2006 6:16 pm
>> To: <zenith-list@matronics.com>
>>
>>
>> The commercial tension gauges cost hundreds of dollars..As usual Larry
>> McFarland had a nice solution:
>>
>> www.macsmachine.com/images/tjh/cabletools/full/tension0.gif
>> www.macsmachine.com/images/tjh/cabletools/full/tension3.gif
>> www.macsmachine.com/images/tjh/cabletools/full/tension4.gif
>> www.macsmachine.com/images/tjh/cabletools/full/tenscalbrate.gif
>>
>> -- Craig
>>
>>
>>
>>
>
>
>
Message 8
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| Subject: | Re: Tensioning Cable |
--> Zenith-List message posted by: LarryMcFarland <larry@macsmachine.com>
Matt,
The cable tension in most certified aircraft is considerably higher than
what is recommended for the 601series.
I used 20-25 lbs between belcranks on the ailerons and was careful not
to go higher than that.
You'd find that very acceptable for keeping things taut in flight
without damage or wearing out bearing
area on pivot bolts.
I see links posted to a tensioner I made from garage door hardware
pulleys, calibrated and can be used
with some reliability. Cost about $20.
Good luck,
Larry McFarland - 601HDS at www.macsmachine.com
Matt & Jo wrote:
> Question for the group. How did you determine and set the cable
> tension in the flight control cables?
>
> Cheers
>
> Matt
> www.zodiacxl.com <http://www.zodiacxl.com>
>
Message 9
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| Subject: | Re: Tensioning Cable |
--> Zenith-List message posted by: LarryMcFarland <larry@macsmachine.com>
Nick,
The linked cable tensioner is very practical because it is inexpensive
and not hard to make
using garage door cable pulleys with bearings. Do a variable weight
check and mark the
spring deflections and you're good to go. For the homebuilt market the
commercial
tensioner is a waste of money. For the 601 market, you're working at
20-25 lbs.
Larry McFarland - 601HDS at www.macsmachine.com
nick@aoaircrafters.com wrote:
>--> Zenith-List message posted by: nick@aoaircrafters.com
>
>Is this really practical?
>
>
>~nick :)
>
>
>
>
>>-------- Original Message --------
>>Subject: RE: Zenith-List: Tensioning Cable
>>From: "Craig Payne" <craig@craigandjean.com>
>>Date: Wed, October 04, 2006 6:16 pm
>>To: <zenith-list@matronics.com>
>>
>>
>>The commercial tension gauges cost hundreds of dollars..As usual Larry McFarland
had a nice solution:
>>
>>www.macsmachine.com/images/tjh/cabletools/full/tension0.gif
>>www.macsmachine.com/images/tjh/cabletools/full/tension3.gif
>>www.macsmachine.com/images/tjh/cabletools/full/tension4.gif
>>www.macsmachine.com/images/tjh/cabletools/full/tenscalbrate.gif
>>
>>-- Craig
>>
>>
>>
>
>
>
>
Message 10
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| Subject: | Re: Tensioning Cable |
--> Zenith-List message posted by: "Matt & Jo" <archermj@swbell.net>
Larry, Thanks a lot. That really seem like a reasonable approach
Cheers
Matt
www.zodiacxl.com
----- Original Message -----
From: "LarryMcFarland" <larry@macsmachine.com>
>
Message 11
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| Subject: | Re: vortex generators |
James,
Check the Matronics Archives: http://www.matronics.com/archives/
You will find over 70 messages on this subject.
Here is one I posted:
List,
I read Michael Mossman's article, Stall Reduction in the 601 HDS, in
Zenair News, issue #153, March/April 2006, with interest. I noted he
Had no before and after comparison figures, as he put on Vortex
Generators (VGs) prior to flying his plane. He also gave no TAS figures,
Only IAS.
N601Z is unpainted so I figured she was an excellent candidate for some
Experimentation. N601Z, without VGs, flies much as Michael described
The flight performance of his plane, with VGs.
I washed N601Z and re-test flew her to verify lift-off, climb, cruise,
Low speed handling and stall. I made VGS from .025, as per Michael's
Article and glued them on.
Flight test report:
Lift-off - no change
Climb - no change
Cruise - no change
Low speed handling - no change
Stall speed - no change :-(
I sent the following to Zenith: "I need an informed suggestion. Do I
Start moving the VGs back and forward to see if I get any positive
Results or is this a waste of time?"
Nicolas Hines replied: "I have forwarded you e-mail to Chris..."
When I get a reply I will post it here.
Leo Gates
N601Z CH601HDS TDO
-------Original Message-------
From: James MacDonald
Subject: Zenith-List: vortex generators
Has anyone put vortex generators on you Zenair and how did it work
Message 12
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| Subject: | Re: vortex generators |
Leo:
What was the chordwise location of your VGs. Some old work I ran across
at Boeing suggests that they should be at about 5%c.
George
----- Original Message -----
From: Leo Gates
To: zenith-list@matronics.com
Sent: Thursday, October 05, 2006 10:09 AM
Subject: Re: Zenith-List: vortex generators
James,
Check the Matronics Archives: http://www.matronics.com/archives/
You will find over 70 messages on this subject.
Here is one I posted:
List,
I read Michael Mossman's article, Stall Reduction in the 601
HDS, in
Zenair News, issue #153, March/April 2006, with interest. I
noted he
Had no before and after comparison figures, as he put on Vortex
Generators (VGs) prior to flying his plane. He also gave no TAS
figures,
Only IAS.
N601Z is unpainted so I figured she was an excellent candidate
for some
Experimentation. N601Z, without VGs, flies much as Michael
described
The flight performance of his plane, with VGs.
I washed N601Z and re-test flew her to verify lift-off, climb,
cruise,
Low speed handling and stall. I made VGS from .025, as per
Michael's
Article and glued them on.
Flight test report:
Lift-off - no change
Climb - no change
Cruise - no change
Low speed handling - no change
Stall speed - no change :-(
I sent the following to Zenith: "I need an informed suggestion.
Do I
Start moving the VGs back and forward to see if I get any
positive
Results or is this a waste of time?"
Nicolas Hines replied: "I have forwarded you e-mail to Chris..."
When I get a reply I will post it here.
Leo Gates
N601Z CH601HDS TDO
-------Original Message-------
From: James MacDonald
Date: 10/03/06 16:30:08
To: zenith-list@matronics.com
Subject: Zenith-List: vortex generators
Has anyone put vortex generators on you Zenair and how did it
work
-------------------------------------------------------------------------
-----
10/4/2006
Message 13
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Hello List
May be a dumb question, but I found an aluminum part marked "7E-9 door" in
my kit and so far have not found any reference to it on drawings or in
illustrations. Can someone tell me what it's for?
Regards,
Larry Wood
do not archive
Message 14
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| Subject: | Extra AS5 rivet in the 601 XL tail kit? |
--> Zenith-List message posted by: Todd Osborne <todd@toddtown.com>
My tail kit came with 3 AS5 (steel) rivets, but I can only find 2
places where they are used, on the band that connects the upper and
lower elevator control horns. Where does the 3rd one go, or did
Zenith just include an extra in case you mess one up?
Todd Osborne
EMail: todd@toddtown.com
Web: www.toddtown.com
Yahoo Messenger: toddmosborne@yahoo.com
MSN Messenger: todd@toddtown.com
Skype: toddmosborne
Message 15
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| Subject: | Re: Extra AS5 rivet in the 601 XL tail kit? |
--> Zenith-List message posted by: <dredmoody@cox.net>
Probably just an extra in case of a mess up. I have finished the tail, the wings,
and am working on joining the front and rear of the fuselage and haven't had
to use another one yet. If something departs the airplane inflight someday,
I'll know that's where it was supposed to go.
Ed Moody II
---- Todd Osborne <todd@toddtown.com> wrote:
>
> My tail kit came with 3 AS5 (steel) rivets, but I can only find 2
> places where they are used, on the band that connects the upper and
> lower elevator control horns. Where does the 3rd one go, or did
> Zenith just include an extra in case you mess one up?
>
> Todd Osborne
> EMail: todd@toddtown.com
> Web: www.toddtown.com
Message 16
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| Subject: | Flap Hinge - A Question for the Scratchbuilders Out There |
--> Zenith-List message posted by: "Doug Moellering" <dfmoeller@austin.rr.com>
I've mangled a flap and need to replace. Long story. Where do you
scratchbuilding types find the 7 ft piano hinges? All the online suppliers
only stock up to 6 ft. Clue me in, please!
Doug
Message 17
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| Subject: | Extra AS5 rivet in the 601 XL tail kit? |
--> Zenith-List message posted by: "Craig Payne" <craig@craigandjean.com>
Take the spare rivet with you when you fly. :-)
-- Craig
do not archive
-----Original Message-----
From: owner-zenith-list-server@matronics.com
[mailto:owner-zenith-list-server@matronics.com] On Behalf Of
dredmoody@cox.net
Sent: Thursday, October 05, 2006 3:07 PM
Subject: Re: Zenith-List: Extra AS5 rivet in the 601 XL tail kit?
--> Zenith-List message posted by: <dredmoody@cox.net>
Probably just an extra in case of a mess up. I have finished the tail, the
wings, and am working on joining the front and rear of the fuselage and
haven't had to use another one yet. If something departs the airplane
inflight someday, I'll know that's where it was supposed to go.
Ed Moody II
---- Todd Osborne <todd@toddtown.com> wrote:
>
> My tail kit came with 3 AS5 (steel) rivets, but I can only find 2
> places where they are used, on the band that connects the upper and
> lower elevator control horns. Where does the 3rd one go, or did Zenith
> just include an extra in case you mess one up?
>
> Todd Osborne
> EMail: todd@toddtown.com
> Web: www.toddtown.com
Message 18
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--> Zenith-List message posted by: Mark Sherman <msherman95632@yahoo.com>
Larry,
What does the part look like?
The 7E number would suggest that it is part of the
engine compartment. Maybe access door for the dip
stick?
Mark S.
701/912S
Painting
--- Elwood140@aol.com wrote:
> Hello List
>
> May be a dumb question, but I found an aluminum
> part marked "7E-9 door" in
> my kit and so far have not found any reference to it
> on drawings or in
> illustrations. Can someone tell me what it's for?
>
> Regards,
>
> Larry Wood
>
> do not archive
>
__________________________________________________
Message 19
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--> Zenith-List message posted by: "Geoff Heap" <stol10@comcast.net>
Larry
Give us some sizes on this part.........Geoff
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=66084#66084
Message 20
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| Subject: | Re: vortex generators |
Will make the 701 a helicopter :-)
The XL has a great airfoil... I dont think will make much noticeable diference,
maybe only when washing the wings,,, Pretty scars in the hands... :-)
James MacDonald <jmacdonald@lethbridge.ca> wrote: Has anyone put vortex
generators on you Zenair and how did it work
---------------------------------
Message 21
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--> Zenith-List message posted by: <planejim@bellsouth.net>
Listers,
This is primarily for those operating the OLD type bungee gear on HDs and
HDS'. Mine are 10 years old 531 hours with 730 landings. I have never
operated off of grass, well, some taxiing on grass.
I have been working on one of my R/H Main Gear on my 601HD. I removed the
gear to add some gussets at the strut to fork attach plate juncture since
some folks have had failure at that point. The plates on my main gear are
the small .125" thick ones with just four bolt holes attaching the fork.
Upon disassembly I was shocked to find the bungees in pretty bad shape. The
plate in top of the wing was still riding down tight, flush, like the
bungees were still tight. This was supposed to be an indication that the
bungees were still in good shape. I seem to remember someone saying that
everything is OK until you have a 5/8" gap. I noticed some fraying of the
outer covering at the bottom but it didn't look very bad. Where the bungees
bend over the crosstube ( the tube that slides up and down in the extrusions
inside the gear box ) the outer covering was completely gone and about 25%
of the rubber bands were broken, ( I think this is because the bungees make
a real tight bend there ) if you can believe it with the plate still tight
down on top of the wing.
I didn't find any cracks in the welds. I made four gussets, about 1 1/4"
high of .065 Chromoly ( the same thickness as the strut wall ) and welded
them at 90 degrees to the strut, with two at the forward flange and two at
the aft flange between the bolt holes. I had to slightly open up the top
cutouts of the wheel fairing when I reinstalled the gear to clear the
gussets.
I also added a nylon wear block at the bottom of the strut. The top was
still a snug fit ( even though I couldn't get much grease it there because
the plates was so tight down on the top of the wing ) and there was a few
tousanths wear at the bottom aluminun wear plate. Note that my gear did not
have the nylon wear plates when I built this plane. I had to add one to the
bottom of the nose gear a couple of hundred hours back. That is is the high
wear area. I do keep it well greased too.
The big surprise was when I put the weight of the airplane on the new
bungees. ( Note that I always believed that the original 1080 bungees were
too stiff ). With the new bungees ( 1080 purchased from A/C Spruce last
week ) there is now approx. a 3/16" gap under the plate on top of the wing
on the R/H side. I can grasp the right wing tip and actually make the plate
move up and down. Never could make it do that with the old bungees. Both the
old and new bungee packaging stated 1080, so I don't know what the
difference is.
I can't wait until I get the opportunity to do the left Main Gear so that I
have an airplane that actually taxiis on the bungees rather that one that is
stiff as a board.
So, if you have one of the older 601's you might keep an eye on the gear!
Jim Hoak 601HD - Rotax 912UL - 532 hours - 732 landings.
Message 22
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| Subject: | Re: Flap Hinge - A Question for the Scratchbuilders Out |
There
--> Zenith-List message posted by: Tim & Diane Shankland <tshank@core.com>
Doug,
I just used two pieces. I bought mine from AS.
Tim Shankland
Doug Moellering wrote:
> --> Zenith-List message posted by: "Doug Moellering"
> <dfmoeller@austin.rr.com>
>
> I've mangled a flap and need to replace. Long story. Where do you
> scratchbuilding types find the 7 ft piano hinges? All the online
> suppliers only stock up to 6 ft. Clue me in, please!
>
> Doug
>
>
Message 23
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| Subject: | Leak test for fuel tanks. |
The aluminum in the tanks is very thin for the bicycle pump... Is better to infalte
a condom, these are certified leak proof. Is what I use. If it deflates
overnight, then test it with soapy water.
Saludos
Gary Gower
Craig Payne <craig@craigandjean.com> wrote: Cut the stem and some rubber
around it from an inner tube. Then clamp it over the filler neck. Use a bicycle
pump to inflate BUT USE VERY LITTLE PRESSURE. You can easily bulge the tank.
You can try and monitor the pressure and see if it drops but the most sensitive
test is to squirt soapy water along all welds and look for bubbles.
-- Craig
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| Subject: | Re: FWF kit for JabiruFWF kit for Jabiru |
Bill,
I have the same setup as you with the Woodcomp prop, and I don't see that kind
of airspeed. What kind of empty weight do you have? My cruise speed set up still
has me a little nose high attitude and I think that this is what is slowing
me down. With a small amount of foward stick the speed shoots up quickly. What
pitch do you have the prop set at? I believe I have mine set at 13 degrees.
Bob Spudis
N701ZX
-----Original Message-----
From: mileski@sonalysts.com
Sent: Wed, 4 Oct 2006 9:44 PM
Subject: Zenith-List: Re: FWF kit for JabiruFWF kit for Jabiru
--> Zenith-List message posted by: "billmileski" <mileski@sonalysts.com>
Actually, believe it or not, I can obtain 110mph in level flight with a 912S and
a Woodcomp fixed pitch propeller. I don't think this is a safe regime in which
to operate, but what's nice, is an easy cruise of 80-85mph at 4800rpm or so. I
have heard that this propeller is the main reason, but I have no experience with
other setups, so who knows. Maybe I have "reflex" in my flaperon position
relative to others or something. And I haven't rigorously verified with a GPS
and triangular course, but have "loosely" verified using opposing courses
several times, so that I'm likely within 5mph of reality. Again, I did this just
during test phase and don't recommend operating there. And this is IAS at less
than 3500' msl.
Bill Mileski
>
> I concur, 90mph is about the best except when you push that stick forward.
>
> Bob Spudis
>
>
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=65902#65902
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Message 25
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--> Zenith-List message posted by: "Robin Bellach" <601zv@ritternet.com>
And what kit for what model?
Do not archive.
----- Original Message -----
From: "Mark Sherman" <msherman95632@yahoo.com>
Sent: Thursday, October 05, 2006 7:13 PM
Subject: Re: Zenith-List: Door 7E-9
> --> Zenith-List message posted by: Mark Sherman <msherman95632@yahoo.com>
>
> Larry,
>
> What does the part look like?
>
> The 7E number would suggest that it is part of the
> engine compartment. Maybe access door for the dip
> stick?
>
> Mark S.
> 701/912S
> Painting
>
> --- Elwood140@aol.com wrote:
>
>> Hello List
>>
>> May be a dumb question, but I found an aluminum
>> part marked "7E-9 door" in
>> my kit and so far have not found any reference to it
>> on drawings or in
>> illustrations. Can someone tell me what it's for?
>>
>> Regards,
>>
>> Larry Wood
>>
>> do not archive
>>
>
>
> __________________________________________________
>
>
>
>
Message 26
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| Subject: | Re: Leak test for fuel tanks. |
Since I have the fuel lines and fittings temporarily installed I just
put rubber gloves over the filler necks and blew into the lines by mouth
until the gloves were about the size of a large grapefruit. I let them
set for an hour or so. I checked all the fittings and sending units with
soapy water. The air leakage was around the rubber bands on the gloves
and the cut ends of the fuel lines. I do plan on doing one last test
before I rivet the skin on.
----- Original Message -----
From: Gary Gower
To: zenith-list@matronics.com
Sent: Thursday, October 05, 2006 6:39 PM
Subject: RE: Zenith-List: Leak test for fuel tanks.
The aluminum in the tanks is very thin for the bicycle pump... Is
better to infalte a condom, these are certified leak proof. Is what I
use. If it deflates overnight, then test it with soapy water.
Saludos
Gary Gower
Craig Payne <craig@craigandjean.com> wrote:
Cut the stem and some rubber around it from an inner tube. Then
clamp it over the filler neck. Use a bicycle pump to inflate BUT USE
VERY LITTLE PRESSURE. You can easily bulge the tank. You can try and
monitor the pressure and see if it drops but the most sensitive test is
to squirt soapy water along all welds and look for bubbles.
-- Craig
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| Subject: | Re: 701 Cruise performance (was FWF kit for Jabiru) |
--> Zenith-List message posted by: "jetboy" <sanson.r@xtra.co.nz>
VNE is 110 mph.
A point to note about the 701 indicated airspeed is going to be about 15% higher
than it should read. This is because the plans do not specify an external static
vent. Its a cheap and easy way to get good performance figures, and done
by many kitplanes. If someone comments that my 701 is slow, I can just reach down
and pull the static hose off and dial in another 10 knots. I tried this in
a Cessna 150 and its the same.
The new cowl and engine mounting is probably worthwhile - particularly for
the 912S which tends to shake the tail.
--------
Ralph - CH701 / 2200a
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http://forums.matronics.com/viewtopic.php?p=66133#66133
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