Today's Message Index:
----------------------
1. 06:07 AM - AN Rivet sizes (Ashcraft, Keith - AES)
2. 07:49 AM - Re: CanZac floats (Avidmagnum)
3. 09:45 AM - Inspection Plates (txpilot)
4. 09:46 AM - Propeller and Spinner Balance (George Race)
5. 02:49 PM - Re: =?ISO-8859-1?Q?R=E9p?=. : throttle change (ronlee)
6. 03:19 PM - =?iso-8859-1?Q?Re:__R=E9p._:_Zenith701801-List:_throttl?= =?iso-8859-1?Q?e_change? (Craig Payne)
7. 04:17 PM - Pulled Rivet Removal Help Sought (rbjjr)
8. 07:17 PM - =?iso-8859-1?Q?Re=3A_Zenith701801-List=3A_R=E9p=2E_=3A_Zenith701801-List?= =?iso-8859-1?Q?=3A_throttle_change? (Gary Gower)
9. 07:22 PM - Re: Pulled Rivet Removal Help Sought (NYTerminat@aol.com)
10. 08:50 PM - Re: Inspection Plates (jf3sb)
11. 08:50 PM - 701 Hard Landing (Damien and Kathy)
Message 1
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All, (both lists)
Articles involved for rivets sizes
Standard Practices for Aluminum - AN470-d-l == diameter - length
Example:
Standard Practices for Aluminum -- AN470-4-4 == 4/32" (1/8") dia by 4/
16" (1/4") length
Standard Practices for Aluminum -- AN470-4-6 == 4/32" (1/8") dia by 6/
16" (3/8") length
Construction Standards by Zenith Aircraft Company Draft Edition (01/16/07)
== page 27 of 42 CS#402 is stated as AD???-l-d ( length - diameter =
= the opposite of the Standard
701 plans = page 7F9 (cabin side), their documentation is AN470-4-4; AN47
0-4-5; AN470-4-6 I am assuming it follows the standard, and are meaning 1/8
" rivets with different lengths.
Can some 701 builders look at their cabin sides and see if all the rivets a
re 1/8" (to the best of their ability, since the rivets are already driven)
Also, should somebody point this out to Zenith?
Guess I should also try to find a newer version on their website.
Thanks all,
Keith
CH701 -- scratch
N 38.9940
W 105.1305
Alt. 9,100'
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Message 2
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| Subject: | Re: CanZac floats |
I'm sorry you had so much trouble getting your floats. Float flying is one of my greatest Joys! I have about 200 hours on my Czech 1200-4 amphibs on my 701 and over 50 hours on my Rans S-7 on czech 1150-4 Amphibs. They work well and are well built....my friend Jim has over 600 hours on his set. I bought them from Skyshops in Florida. http://www.skyshops.org/ Danny imports them from the Czech Republic. He holds all deposits here and has always done well by me. The Last time (Oshkosh) I talked to him he was still importing floats. I've also seen two sets on barnstormers earlier this year ...you may want to keep your eyes open there. Don't give up..water flying is a blast!
Tom Schulke Stol 701SP 912s on czech amphibs
PS... I do not know Mark at all but I'm sure he is just as upset with his float
production progress. No floats....no $. Just my 2 cents
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p 5697#205697
Message 3
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| Subject: | Inspection Plates |
Where is everyone installing their inspection plates for the wings? I called ZAC
and they referred me to the Construction Standards on the website, which basically
tells me nothing.
I'm thinking an inspection plate should be installed between the third and fourth
rib to inspect the strut attachment points and another installed near the tip
(maybe on top?) to inspect/repair the nav/strobe lights. Where is everyone
else putting theirs (if any)?
Thanks,
Dan Ginty
N787DG
90% complete for a long,long time
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p 5737#205737
Message 4
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| Subject: | Propeller and Spinner Balance |
I am using a Jabiur 2200A in my Zenith CH701. I have been bothered by the
fact that my prop spinner mounting plate was about 30 thousands out of
round. Also the fact that when I installed the 6 nut plates to mount the
spinner to the mounting plate I am sure that they were not anywhere close to
being in a balanced configuration either.
I could see the spinner, at low speed, running slightly out of round.
Knowing that his was probably causing some unbalance on the front crankshaft
bearing, I played and played with the mounting plate and spinner trying to
get it so it at least looked balanced when it ran. After several attempts I
was still not able to get it where I wanted it to be. At various RPM
settings I could actually feel the vibration that I though was probably the
out of balance spinner.
Boy, have I ever found a solution, at least one that suits my situation. I
did a bunch of research on mercury ring balancing and found that there is
indeed a company that builds a prop mounted balancing system that uses a
metal tube partially filled with mercury to off set any out of balance
situation, within reason. It is the Propeller Balance Master, 6-hole prop,
black anodized. SKU: N5190 $69.50 from The WagArrow Group.
It fit perfectly on the front of my prop, against the crush plate. It is
about 7 inches in diameter so it easily fits inside the composite spinner.
After about a minute run-up at 2000 RPM I noticed an immediate reduction in
the vibration at various speeds that I was getting prior to the
installation. Don't know if it will work this good for anyone else, but for
the price I think it is well worth trying if you suspect any vibration from
the prop and spinner assembly.
Incidentally, they call for it to be mounted at the rear of the propeller.
I have a wood Sensenich prop which has the larger diameter inserts that go
into the back of the prop so the 1/4 mounting bolts are only extended out
the front of the prop where the crush plate mounts. My bolt mounting
centers is exactly 100mm so the balance plate fit perfectly.
Here is a link to the Balance Master Web Site:
http://www.balancemasters.com/ultralights/index.html
<blocked::http://www.balancemasters.com/ultralights/index.html>
Here is a link to the WagArrow Web Site:
http://store.leadingedgeairfoils.com/product_info.php?products_id=12546
<blocked::http://store.leadingedgeairfoils.com/product_info.php?products_id
12546>
George - CH701
N73EX - FLYING
Message 5
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| Subject: | Re: =?ISO-8859-1?Q?R=E9p?=. : Zenith701801-List: throttle |
change
I had the same problem with a friction throttle. It would keep increasing RPM if
I wasn't careful. I almost had a mishap while warming up one day. The RPM's
were increasing and I didn't realize it. If you try to set the friction so it
doesn't creep it will be hard to fine adjust the RPM's. I went to the Vernier
throttle control and it works very well. There is no creep, a couple of twists
to increase or decrease the RPM's or depress the button to push or pull for larger
adjustments. A much, much safer arrangement in my opinion.
I love my 701,
Ron Lee
Tucson, AZ
--------
Ron Lee
Tucson, Arizona
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p 5802#205802
Message 6
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| Subject: | -1?Q?RE:_Zenith701801-List:_R=E9p._:_Zenith701801-List:_throttl?= |
=?iso-8859-1?Q?e_change?
Can you use a vernier throttle in a two throttle system or would the lock
prevent the other throttle from moving? This would be in setup where the
copilot's throttle is just the rod with the T handle.
-- Craig
-----Original Message-----
From: owner-zenith701801-list-server@matronics.com
[mailto:owner-zenith701801-list-server@matronics.com] On Behalf Of ronlee
Sent: Tuesday, September 23, 2008 3:48 PM
Subject: Re: Zenith701801-List: Rp. : Zenith701801-List: throttle change
I had the same problem with a friction throttle. It would keep increasing
RPM if I wasn't careful. I almost had a mishap while warming up one day. The
RPM's were increasing and I didn't realize it. If you try to set the
friction so it doesn't creep it will be hard to fine adjust the RPM's. I
went to the Vernier throttle control and it works very well. There is no
creep, a couple of twists to increase or decrease the RPM's or depress the
button to push or pull for larger adjustments. A much, much safer
arrangement in my opinion.
I love my 701,
Ron Lee
Tucson, AZ
--------
Ron Lee
Tucson, Arizona
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p 5802#205802
Message 7
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| Subject: | Pulled Rivet Removal Help Sought |
I may have a need to remove some rivets (20-30) and was wondering if anyone can
offer advice on how to do so without screwing up the finished structure.
Thanks in advance!
Burke Johnson
CH701
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p 5822#205822
Message 8
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| Subject: | =?iso-8859-1?Q?Re=3A_Zenith701801-List=3A_R=E9p=2E_=3A_Zenith701801-List?= |
=?iso-8859-1?Q?=3A_throttle_change?
I am using the ZAC friction throttle control,- we adjusted by trial and e
rror in the first few hours of flight, got it set in a confortable friction
set,- just little over the pull of the carburator.
-
Has been set since, no further adjustement in 208 hrs...
-
Keep it simple,- only add simplicity and lightness to your airplane...
-
Saludos
Gary Gower.
Do not archive.
--- On Tue, 9/23/08, ronlee <rlee468@comcast.net> wrote:
From: ronlee <rlee468@comcast.net>
Subject: Re: Zenith701801-List: R=E9p. : Zenith701801-List: throttle change
<rlee468@comcast.net>
I had the same problem with a friction throttle. It would keep increasing R
PM
if I wasn't careful. I almost had a mishap while warming up one day. The
RPM's were increasing and I didn't realize it. If you try to set the
friction so it doesn't creep it will be hard to fine adjust the RPM's. I
went to the Vernier throttle control and it works very well. There is no cr
eep,
a couple of twists to increase or decrease the RPM's or depress the button
to push or pull for larger adjustments. A much, much safer arrangement in m
y
opinion.
I love my 701,
Ron Lee
Tucson, AZ
--------
Ron Lee
Tucson, Arizona
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p 5802#205802
=0A=0A=0A
Message 9
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| Subject: | Re: Pulled Rivet Removal Help Sought |
Burke,
Take a punch and drive out the stems of the pulled rivets. Then drill off
the head of the rivet, you should be able to push the rest of the rivet out of
the hole. It goes easy, try it on a practice piece first.
Bob Spudis
N701ZX/ CH701/912S
In a message dated 9/23/2008 7:17:48 P.M. Eastern Daylight Time,
burkeandsusan@verizon.net writes:
I may have a need to remove some rivets (20-30) and was wondering if anyone
can offer advice on how to do so without screwing up the finished structure.
Thanks in advance!
Burke Johnson
CH701
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Message 10
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| Subject: | Re: Inspection Plates |
I went with small (100mm dia) inspection plates for the strut attach points as
you described, plus larger ones just big enough to pull the strobe power supplies
through in each wingtip. Also small inspection plates beneath each fuel tank
outlet to check for leaks/deterioration and maybe pull the screens out if
need be. I'm not flying yet, but it still makes sense to me.
John Flavin
Olathe KS
Panel, engine, etc to go...
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p 5877#205877
Attachments:
http://forums.matronics.com//files/leftwing2005_0927001_327.jpg
Message 11
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| Subject: | 701 Hard Landing |
I want to thank everyone for their helpful comments and advice regarding
how to evaluate a 701 after a hard landing. As someone pointed out, this
collective knowledge is why we belong to this group.
Regards,
Damien
DO NOT ARCHIVE
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