Today's Message Index:
----------------------
1. 03:55 AM - Re: Torque tube (Paul Mulwitz)
2. 06:31 AM - Re: Torque tube (Bill Pagan)
3. 07:03 AM - Re: vw in 601 hds (Jimbo)
4. 07:36 AM - Re: Torque tube (LarryMcFarland)
5. 08:32 AM - Re: Grounding Of Fuel Senders (Dave VanLanen)
6. 09:37 AM - Re: Do you know what a throttle bellcrank IS? (Clive Richards)
7. 09:45 AM - Re: vw in 601 hds (Roger & Lina Hill)
8. 09:57 AM - Cost savings (Bill Naumuk)
9. 10:10 AM - Re: Torque tube (vayuwings)
10. 10:18 AM - Re: Digital Level Final (leinad)
11. 10:22 AM - Re: Cost savings (George Swinford)
12. 10:28 AM - Re: Re: Torque tube (Roger & Lina Hill)
13. 10:29 AM - Re: Do you know what a throttle bellcrank IS? (Bill Naumuk)
14. 10:52 AM - Re: Cost savings (Bill Naumuk)
15. 10:53 AM - Re: Re: Digital Level Final (Bill Naumuk)
16. 11:15 AM - Re: A5 rivets, Z angles for sale (azkells)
17. 11:27 AM - Re: Re: Digital Level Final (jaybannist@cs.com)
18. 02:01 PM - Radio tray (Bill Naumuk)
19. 05:23 PM - Re: Torque tube (vayuwings)
20. 07:53 PM - Re: Re: Torque tube (Roger & Lina Hill)
21. 08:08 PM - Re: Cost savings (leinad)
22. 08:20 PM - Re: Re: Cost savings (Carlos Sa)
Message 1
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Hi Dave,
Perhaps you will get better response from ZAC if you call on the
telephone. If you do that during normal business hours you will
usually get tech support within a couple of minutes.
I don't remember ever actually measuring the angle of the rear tab on
the tube, but I think mine has the tab aligned with the stick when it
is mounted. It seems to me you do indeed have a flawed part.
Paul
XL getting close
At 11:13 PM 12/12/2008, you wrote:
>Hello - I'm new to the list and am building a 601XL... I've given
>the topic search my best effort and didn't see anything over the
>many pages about my subject, so I'll try and describe it and see if
>anyone could share an opinion.
>I'm done with the tail and wings and am at a point to test install
>the torque tube and the Y stick in the fuse for measurement. With
>the tube resting in the rear bearing behind the seat back, and
>resting in the front bearing at the center spar, I slid the Y stick
>over the tube and temporarily installed a bolt in the pre-drilled
>hole for it in the tube. Now attached to the tube, when I center the
>Y stick over the ac centerline marked on the top of the center spar,
>the rear flange of the tube that will attach to the aileron cables
>is a good 10-15 degrees off pointing to the left (pilot side).
> I haven't heard from ZAC from my emails a few weeks now, so I
> thought I would run it by any interested builder. After one would
> tighten the cables to the rear flange, I'm just not sure if that
> would work or not. I think the pre-drilled hole was drilled
> incorrectly in the tube...
>Thanks -
>Dave
Message 2
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Hey Dave,
-
Yea, sounds like a flawed part.- Mine lines up perfectly (i didn't use a
digital level to check it just eyeballed it) vertical with the Y-Stick.
Bill Pagan
EAA Tech Counselor #4395
--- On Sat, 12/13/08, vayuwings <vayuwings@cox.net> wrote:
From: vayuwings <vayuwings@cox.net>
Subject: Zenith-List: Torque tube
<vayuwings@cox.net>
Hello - I'm new to the list and am building a 601XL... I've given
the topic search my best effort and didn't see anything over the many pages
about my subject, so I'll try and describe it and see if anyone could share
an opinion.
I'm done with the tail and wings and am at a point to test install the
torque tube and the Y stick in the fuse for measurement. With the tube rest
ing
in the rear bearing behind the seat back, and resting in the front bearing
at
the center spar, I slid the Y stick over the tube and temporarily installed
a
bolt in the pre-drilled hole for it in the tube. Now attached to the tube,
when
I center the Y stick over the ac centerline marked on the top of the center
spar, the rear flange of the tube that will attach to the aileron cables is
a
good 10-15 degrees off pointing to the left (pilot side).
I haven't heard from ZAC from my emails a few weeks now, so I thought I
would run it by any interested builder. After one would tighten the cables
to
the rear flange, I'm just not sure if that would work or not. I think the
pre-drilled hole was drilled incorrectly in the tube...
Thanks -
Dave
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=219178#219178
=0A=0A=0A
Message 3
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I think you may have read the 701 weight limit not the 601, which has even
been powered by the Lycoming O-235 with Zenith's blessing.
My first candidate for a kit plane was the Sonex with VW power. Once I chos
e he 601 airframe (originally 601HD) I realized the VW was not enough engin
e, particularly here in the West with high terrain.
Jim Lobue
601XL/Corvair
--- On Fri, 12/12/08, Roger & Lina Hill <hills@sunflower.com> wrote:
From: Roger & Lina Hill <hills@sunflower.com>
Subject: RE: Zenith-List: vw in 601 hds
-
Corvair, YIKES,,,,
-
I thought my VW was heavy. The corvair is
WAY over 200 lbs.-
Don=A2t ya folks read the max weight
spec on the 601s?
Ya don=A2t want your engine falling
off with your firewall, do ya?
-
Roger
-
-
-
From:
owner-zenith-list-server@matronics.com
[mailto:owner-zenith-list-server@matronics.com] On Behalf Of Bill
Naumuk
Sent: Friday, December 12, 2008
9:04 PM
Subject: Re: Zenith-List: vw in
601 hds
-
Ralph-
--- For very little more outlay than a VW,
you get 100hp from a Corvair conversion.
--- --- ---
--- --- --- ---
--- --- --- ---
--- --- --- ---
--- --- --- ---
--- Bill
--- --- ---
--- --- --- ---
--- --- --- do not archive
----- Original Message -----
From: Roger & Lina
Hill
Sent: Friday, December
12, 2008 7:20 PM
Subject: RE: Zenith-List:
vw in 601 hds
-
-
Anyone flying with a VW?- Ya,
that=A2s me, but I have the HDS.-
You don=A2t use the 914 with a
redrive, here is why.
-
The VW is already too heavy for the 601
You can=A2t get the waste heat out of
the engine if it
produces over 80 Hp, the air cooled heads
don=A2t have enough fin area.
The prop would be too long for the wheel
clearance on a redrive.
914 parts cost more than 2180 VW
You don=A2t need the extra power, 75
HP will do fine in an HD
-
Hope this helps
-
Roger
-
-
-
From:
owner-zenith-list-server@matronics.com
[mailto:owner-zenith-list-server@matronics.com] On Behalf Of Bill
Flick
Sent: Friday, December 12, 2008
2:10 PM
Subject: Zenith-List: vw in 601
hds
-
is anyone flying a 601 hd - hds with vw power?- i am thinking of
useing a porsche 914 2.0 eng with a redrive and would like to hear any comm
ents
or tips.- thanks- ralph
- - -http://www.matronics.com/Navigator?Zenith-Listhttp://forums.mat
ronics.com
Incentive Free Terrific s> -http://www.matronics.com/contribution http:/
/www.matronics.com/contribution
Message 4
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Hi Dave,
I'd suggest you talk with Zenith, Nick or Roger and put that problem to
them. They are very good about taking care of issues which relate to
their production.
Larry McFarland 601HDS at www.macsmachine.com
do not archive
vayuwings wrote:
>
> Hello - I'm new to the list and am building a 601XL... I've given the topic
search my best effort and didn't see anything over the many pages about my subject,
so I'll try and describe it and see if anyone could share an opinion.
> I'm done with the tail and wings and am at a point to test install the torque
tube and the Y stick in the fuse for measurement. With the tube resting in the
rear bearing behind the seat back, and resting in the front bearing at the center
spar, I slid the Y stick over the tube and temporarily installed a bolt
in the pre-drilled hole for it in the tube. Now attached to the tube, when I center
the Y stick over the ac centerline marked on the top of the center spar,
the rear flange of the tube that will attach to the aileron cables is a good
10-15 degrees off pointing to the left (pilot side).
> I haven't heard from ZAC from my emails a few weeks now, so I thought I would
run it by any interested builder. After one would tighten the cables to the
rear flange, I'm just not sure if that would work or not. I think the pre-drilled
hole was drilled incorrectly in the tube...
> Thanks -
> Dave
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p=219178#219178
>
>
>
Message 5
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| Subject: | Re: Grounding Of Fuel Senders |
I agree with Gig's statement that the tank must be bonded to the airframe to
prevent static electrical discharge during fueling. However I disagree with
the statement that the sender is electrically isolated from the tank itself.
This is not a guarantee, because the sender mounting screws are screwed
directly into a metal backing plate, which is in metal-to-metal contact with
the back side (inside) of the fuel tank. The only way the sender might be
isolated is if you get "lucky" and all five of the mounting screws do not
touch the sides of the mounting holes in the sender.
Regards,
Dave
Time: 06:16:52 AM PST US
Subject: Zenith-List: Re: Grounding Of Fuel Senders
From: "Gig Giacona" <wrgiacona@gmail.com>
hills(at)sunflower.com wrote:
> Wouldn't you want to ground the tank to the airframe, in order to
discharge
> any static that might try to build up and cause a spark when you open the
> filler cap to refill?
>
> Roger
>
>
>
>
> --
Of course. There is even a tab on the tank for a ground wire attachment. The
ground
for the fuel sender is separate because it is electrically isolated from
the tank itself.
As for running the ground for the sender back to the central ground in the
aircraft.
I followed the plans and grounded all the electrical items in the wing
(Lights
and fuel sender) in the wing. I was looking a a Cessna that the local A&P
had apart for annual and it lights were grounded in the wing as well.
--------
Message 6
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| Subject: | Re: Do you know what a throttle bellcrank IS? |
Bill
I believe the drawing you show is the arrangement for a
Rotax with dual bing carbs & dual throttle.
If you wish to use this arrangement then far as I can see you can weld
the bell crank uprights at any position you wish on the drive shaft
provided it clears equipment on your particular engine arrangement the
height of the bell crank uprights may require adjusting to give the
correct travel to what ever you drive the carb with.
We used a single throttle & Idle cut-off sold by aircraft spruce similar
to those fitted to C152s to directly operate the carb. they are a belden
type cable with solid cores the throttle knob A800 has a friction lock &
idle cut off A790 has a lock release knob & vernier control
In the Rotax arangement the carbs are opened by a spring pulling on the
belden cables from the bell crank, there is no idle cutoff but a choke
is fitted.
Clive
G CBDG 601HD 0-200 275Hrs
do not archive
----- Original Message -----
From: Bill Naumuk
To: zenith list
Sent: Thursday, December 11, 2008 11:56 PM
Subject: Zenith-List: Do you know what a throttle bellcrank IS?
All-
99.99% of the listers who responded to my posts have no idea what
I've been talking about. Attached is the section from my HDS manual- THE
BIG ROD ASSEMBLY THAT GOES OVER THE HORIZONTAL FIREWALL BRACE! WHERE DO
YOU POSITION THE UPRIGHTS TO ACCOMMODATE AN MA3-SPA?? The cable for an
MA3 comes from the right side of the centerline looking at the firewall
from the front. That's why I'm thinking I can just swap this drawing end
for end.
Sorry for the use of caps- I'm not mad, just frustrated.
Thanks.
do not archive
Bill Naumuk
Townville, Pa.
HDS 601MG/Corvair 95%
Message 7
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Jim;
Ok, ya caught me, I was just trying to stir the pot. !!!!!
Yes, I agree that the corvair is not to heavy for the 601 from a structural
standpoint. I would note that with my VW installation,
the usable load is reduced to about 520 lbs, but some might say that is
still fine for a 2 place plane.
Roger
_____
From: owner-zenith-list-server@matronics.com
[mailto:owner-zenith-list-server@matronics.com] On Behalf Of Jimbo
Sent: Saturday, December 13, 2008 9:03 AM
Subject: RE: Zenith-List: vw in 601 hds
I think you may have read the 701 weight limit not the 601, which has even
been powered by the Lycoming O-235 with Zenith's blessing.
My first candidate for a kit plane was the Sonex with VW power. Once I chose
he 601 airframe (originally 601HD) I realized the VW was not enough engine,
particularly here in the West with high terrain.
Jim Lobue
601XL/Corvair
--- On Fri, 12/12/08, Roger & Lina Hill <hills@sunflower.com> wrote:
From: Roger & Lina Hill <hills@sunflower.com>
Subject: RE: Zenith-List: vw in 601 hds
Corvair, YIKES,,,,
I thought my VW was heavy. The corvair is WAY over 200 lbs.
Don?t ya folks read the max weight spec on the 601s?
Ya don?t want your engine falling off with your firewall, do ya?
Roger
_____
From: owner-zenith-list-server@matronics.com
[mailto:owner-zenith-list-server@matronics.com] On Behalf Of Bill Naumuk
Sent: Friday, December 12, 2008 9:04 PM
Subject: Re: Zenith-List: vw in 601 hds
Ralph-
For very little more outlay than a VW, you get 100hp from a Corvair
conversion.
Bill
do not archive
----- Original Message -----
From: <mailto:hills@sunflower.com> Roger & Lina Hill
Sent: Friday, December 12, 2008 7:20 PM
Subject: RE: Zenith-List: vw in 601 hds
Anyone flying with a VW? Ya, that?s me, but I have the HDS.
You don?t use the 914 with a redrive, here is why.
The VW is already too heavy for the 601
You can?t get the waste heat out of the engine if it
produces over 80 Hp, the air cooled heads don?t have enough fin area.
The prop would be too long for the wheel clearance on a redrive.
914 parts cost more than 2180 VW
You don?t need the extra power, 75 HP will do fine in an HD
Hope this helps
Roger
_____
From: owner-zenith-list-server@matronics.com
[mailto:owner-zenith-list-server@matronics.com] On Behalf Of Bill Flick
Sent: Friday, December 12, 2008 2:10 PM
Subject: Zenith-List: vw in 601 hds
is anyone flying a 601 hd - hds with vw power? i am thinking of useing a
porsche 914 2.0 eng with a redrive and would like to hear any comments or
tips. thanks ralph
http://www.matronics.com/Navigator?Zenith-List
http://forums.matronics.com
Incentive Free Terrific s>
http://www.matronics.com/contribution
<http://www.matronics.com/contribution>
http://www.matronics.com/contributionhttp://www.matroni="nofollow"
target="_blank"
href="http://forums.matronics.com">http:/=======================
http://www.matronics.com/contribution
http://www.matronics.com/Navigator?Zenith-List
Message 8
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All-
Regardless of your viewpoint on the digital level, the list came
through again.
Many moons ago I posted the question of how to level to plus/minus 1
degree. The unanimous list response was with a digital level. No
dissention at that time from anyone else.
OK, so I'm in the market for a digital level. I thought I had it
made with an improperly described HF tool and was back to square one and
ask where to find the best deal. Responses came back in the $40-$50
price range. NOW there are postings to the effect "You don't need no
farging digital level".
At the last minute Gary posts that Sears has them on sale for $25.
The local Sears catalog store is across the street from where we shop
for groceries so I stopped in. Yup, they had one. I just saved $15
thanks to the list and can now install the D-100 confident that I'm
meeting Dynon specifications. If I'm real careful opening the package, I
can level my D-100 and then give it away as a Christmas present next
year!
If we didn't collectively embrace new technology, we'd be posting by
smoke signal and still trying to get a steam powered aircraft in the
air. Has anyone ever succeeded using a steam powerplant?
do not archive
Bill Naumuk
Townville, Pa.
HDS 601MG/Corvair 95%
Message 9
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Thanks guys for your responses.... I'll call on Monday to see if I can get hold
of Roger or Caleb, etc. I've got one or two day responses from ZAC on my emails
always before - maybe they're just busy at the moment or I didn't explain the
problem correctly, ..... email is just so convenient and I use it constantly,
hope I can remember how to use, what's it again, a Telephone?.....
Have really enjoyed the last 3 weeks or so pouring over the 90+ pages of this list
for any hints, clues, etc. to make my building better - Larry you have an
excellent web page, nice work and plane - I'm still agonizing over engine choices
keeping under 10K, but other than that I'm going to use many suggestions like
the slider plate for steering rods, the homemade tensiometer, etc. that I
found on this list.
Thanks again,
Dave
N371EK reserved
601XL kit
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=219231#219231
Message 10
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| Subject: | Re: Digital Level Final |
Here's how I measure an angle with a bubble level. I shim the level on one end
until it's level. I divide the thickness of the shim by the length of the level
and take the arc sine. On your home computer that's inverse sine. Example:
1/32 shim divided by 48" = 6.67e-4. Take the inverse sine = .038 degrees
Or I can go the other way. I can say what shim = 1 degree. So I take the sine
of 1 x length of the level.
Example: (lets use a short level this time)
Sine of 1 = .01745 x 4" long level = .069.
So if I can level my 4" long bubble level with less than a .069 shim I'm under
1 degree out of level.
Anyway I'm using the Dynon too, and I AM confident that the compass is within 1/10th
of a degree of level using the above method.
In a way you're right though because my calculator IS digital and I'm using it
when I measure angles.
Dan
naumuk(at)alltel.net wrote:
> Dan-
> I have 6 bubble levels, from a line level to 4'. I agree a bubble level
> is just as accurate as a digital, but how do you accurately READ a 1 degree
> deviation? I can't, and despite how confident you sound, I bet you can't
> either.
>
> Bill
> do not archive
> ---
--------
Scratch building XL with Corvair Engine
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=219233#219233
Message 11
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| Subject: | Re: Cost savings |
Yes, Bill, it's been done. Besler put a steam engine in a Travelaire
biplane and made a short flight (or flights), I think just to prove it
could be done. Besler's interest was in the engine, rather than in
steam-powered flight as such.
George Swinford
do not archive
----- Original Message -----
From: Bill Naumuk
To: zenith list
Sent: Saturday, December 13, 2008 9:57 AM
Subject: Zenith-List: Cost savings
All-
Regardless of your viewpoint on the digital level, the list came
through again.
Many moons ago I posted the question of how to level to plus/minus
1 degree. The unanimous list response was with a digital level. No
dissention at that time from anyone else.
OK, so I'm in the market for a digital level. I thought I had it
made with an improperly described HF tool and was back to square one and
ask where to find the best deal. Responses came back in the $40-$50
price range. NOW there are postings to the effect "You don't need no
farging digital level".
At the last minute Gary posts that Sears has them on sale for $25.
The local Sears catalog store is across the street from where we shop
for groceries so I stopped in. Yup, they had one. I just saved $15
thanks to the list and can now install the D-100 confident that I'm
meeting Dynon specifications. If I'm real careful opening the package, I
can level my D-100 and then give it away as a Christmas present next
year!
If we didn't collectively embrace new technology, we'd be posting
by smoke signal and still trying to get a steam powered aircraft in the
air. Has anyone ever succeeded using a steam powerplant?
do not archive
Bill Naumuk
Townville, Pa.
HDS 601MG/Corvair 95%
Message 12
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Dave;
For cheap (ish) engines, think about used or rebuilt. Be sure to follow ebay
auctions and check barnstormers regularly, sometime guys are parting out
there planes too and you can get a good deal.
I have seen some real steals on Subaru with FWF and Contental C-85 and
O-200s (with all accessories) over the last year, I know they are out there
and winter is the best time to buy, or to make an offer. Hey, if they don't
hang up, you offered too much money to start with !!!!!
Roger
-----Original Message-----
From: owner-zenith-list-server@matronics.com
[mailto:owner-zenith-list-server@matronics.com] On Behalf Of vayuwings
Sent: Saturday, December 13, 2008 12:10 PM
Subject: Zenith-List: Re: Torque tube
Thanks guys for your responses.... I'll call on Monday to see if I can get
hold of Roger or Caleb, etc. I've got one or two day responses from ZAC on
my emails always before - maybe they're just busy at the moment or I didn't
explain the problem correctly, ..... email is just so convenient and I use
it constantly, hope I can remember how to use, what's it again, a
Telephone?.....
Have really enjoyed the last 3 weeks or so pouring over the 90+ pages of
this list for any hints, clues, etc. to make my building better - Larry you
have an excellent web page, nice work and plane - I'm still agonizing over
engine choices keeping under 10K, but other than that I'm going to use many
suggestions like the slider plate for steering rods, the homemade
tensiometer, etc. that I found on this list.
Thanks again,
Dave
N371EK reserved
601XL kit
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=219231#219231
Message 13
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| Subject: | Re: Do you know what a throttle bellcrank IS? |
Clive-
Yes, it's for a Rotax. Since there's only a single carb, the
distance between the uprights can be less, and the MA3 favors the
opposite side of the centerline.
I never thought about the height, but that can be adjusted at the
last minute.
It would seem the throttle proper would need a minimum of cable for
my set up, if any at all. Also, a vernier would only be practical on the
pilot's side.
People might think I'm spending an inordinate amount of time getting
the best information I can for the cockpit layout, but I just, and I
mean JUST was able to clear my battery cable when reattaching the header
tank straps for fit. I also had my battery cable neatly tucked up under
the left upper longeron using cable ties and had to remove one. I didn't
have the access to get my panel on and off any more. I'm sure all the
flying listers will agree- a minor lapse in panel layout will result in
big trouble down the line.
Thanks.
Bill
----- Original Message -----
From: Clive Richards
To: zenith-list@matronics.com
Sent: Saturday, December 13, 2008 12:37 PM
Subject: Re: Zenith-List: Do you know what a throttle bellcrank IS?
Bill
I believe the drawing you show is the arrangement for a
Rotax with dual bing carbs & dual throttle.
If you wish to use this arrangement then far as I can see you can weld
the bell crank uprights at any position you wish on the drive shaft
provided it clears equipment on your particular engine arrangement the
height of the bell crank uprights may require adjusting to give the
correct travel to what ever you drive the carb with.
We used a single throttle & Idle cut-off sold by aircraft spruce
similar to those fitted to C152s to directly operate the carb. they are
a belden type cable with solid cores the throttle knob A800 has a
friction lock & idle cut off A790 has a lock release knob & vernier
control
In the Rotax arangement the carbs are opened by a spring pulling on
the belden cables from the bell crank, there is no idle cutoff but a
choke is fitted.
Clive
G CBDG 601HD 0-200 275Hrs
do not archive
----- Original Message -----
From: Bill Naumuk
To: zenith list
Sent: Thursday, December 11, 2008 11:56 PM
Subject: Zenith-List: Do you know what a throttle bellcrank IS?
All-
99.99% of the listers who responded to my posts have no idea
what I've been talking about. Attached is the section from my HDS
manual- THE BIG ROD ASSEMBLY THAT GOES OVER THE HORIZONTAL FIREWALL
BRACE! WHERE DO YOU POSITION THE UPRIGHTS TO ACCOMMODATE AN MA3-SPA??
The cable for an MA3 comes from the right side of the centerline looking
at the firewall from the front. That's why I'm thinking I can just swap
this drawing end for end.
Sorry for the use of caps- I'm not mad, just frustrated.
Thanks.
do not archive
Bill Naumuk
Townville, Pa.
HDS 601MG/Corvair 95%
Message 14
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| Subject: | Re: Cost savings |
George-
I figured it had, but I bet there wasn't much useful load!
Bill
----- Original Message -----
From: George Swinford
To: zenith-list@matronics.com
Sent: Saturday, December 13, 2008 1:22 PM
Subject: Re: Zenith-List: Cost savings
Yes, Bill, it's been done. Besler put a steam engine in a Travelaire
biplane and made a short flight (or flights), I think just to prove it
could be done. Besler's interest was in the engine, rather than in
steam-powered flight as such.
George Swinford
do not archive
----- Original Message -----
From: Bill Naumuk
To: zenith list
Sent: Saturday, December 13, 2008 9:57 AM
Subject: Zenith-List: Cost savings
All-
Regardless of your viewpoint on the digital level, the list came
through again.
Many moons ago I posted the question of how to level to
plus/minus 1 degree. The unanimous list response was with a digital
level. No dissention at that time from anyone else.
OK, so I'm in the market for a digital level. I thought I had it
made with an improperly described HF tool and was back to square one and
ask where to find the best deal. Responses came back in the $40-$50
price range. NOW there are postings to the effect "You don't need no
farging digital level".
At the last minute Gary posts that Sears has them on sale for
$25. The local Sears catalog store is across the street from where we
shop for groceries so I stopped in. Yup, they had one. I just saved $15
thanks to the list and can now install the D-100 confident that I'm
meeting Dynon specifications. If I'm real careful opening the package, I
can level my D-100 and then give it away as a Christmas present next
year!
If we didn't collectively embrace new technology, we'd be
posting by smoke signal and still trying to get a steam powered aircraft
in the air. Has anyone ever succeeded using a steam powerplant?
do not archive
Bill Naumuk
Townville, Pa.
HDS 601MG/Corvair 95%
href="http://www.matronics.com/contribution">http://www.matronics.com/c
href="http://www.matronics.com/Navigator?Zenith-List">http://www.matron
href="http://forums.matronics.com">http://forums.matronics.com
Message 15
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| Subject: | Re: Digital Level Final |
Bottom line is, you trigged it out, rather than had a display.
Bill
----- Original Message -----
From: "leinad" <leinad@hughes.net>
Sent: Saturday, December 13, 2008 1:17 PM
Subject: Zenith-List: Re: Digital Level Final
>
> Here's how I measure an angle with a bubble level. I shim the level on
> one end until it's level. I divide the thickness of the shim by the
> length of the level and take the arc sine. On your home computer that's
> inverse sine. Example: 1/32 shim divided by 48" = 6.67e-4. Take the
> inverse sine = .038 degrees
> Or I can go the other way. I can say what shim = 1 degree. So I take the
> sine of 1 x length of the level.
> Example: (lets use a short level this time)
> Sine of 1 = .01745 x 4" long level = .069.
> So if I can level my 4" long bubble level with less than a .069 shim I'm
> under 1 degree out of level.
> Anyway I'm using the Dynon too, and I AM confident that the compass is
> within 1/10th of a degree of level using the above method.
> In a way you're right though because my calculator IS digital and I'm
> using it when I measure angles.
> Dan
>
>
> naumuk(at)alltel.net wrote:
>> Dan-
>> I have 6 bubble levels, from a line level to 4'. I agree a bubble
>> level
>> is just as accurate as a digital, but how do you accurately READ a 1
>> degree
>> deviation? I can't, and despite how confident you sound, I bet you can't
>> either.
>>
>> Bill
>> do not archive
>> ---
>
>
> --------
> Scratch building XL with Corvair Engine
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p=219233#219233
>
>
>
Message 16
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| Subject: | Re: A5 rivets, Z angles for sale |
Andy,
I have recently started to view the Matronics website and see that you are a
601XL TD/ Corvair builder in Mesa, Az. I am building the same animal. My tail
feathers are done and I am well into the wings (kit built).
Engine is disassembled,cleaned, and will be put together this summer.
Would enjoy seeing your project and trading ideas.
Dan-PHX,AZ
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=219243#219243
Message 17
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| Subject: | Re: Digital Level Final |
I have used a 24" aluminum spirit level for years.? There is nothing difficult
or highly technical about using it.? You don't need ANYTHING electronic or digital.?
You just shim whatever you are trying to level 'til the bubble is centered
and swap ends of the level to check for accuracy.? If I were building an
astronomical telescope or somesuch, I might use different measuring devices, but
not for building a 130mph airplane. If the 24" level is too long for the piece
you are trying to level, a small torpedo spirit level will do just fine.
For setting angles, there are devices on the market (photo) that have a hanging
weight physically tied to a dial indicator that shows the angle.? Gravity is
not electronic nor digital and is very reliable.? Just make sure and verify the
accuracy of the pointer before using it.
Jay in Dallas
-----Original Message-----
From: leinad <leinad@hughes.net>
Sent: Sat, 13 Dec 2008 12:17 pm
Subject: Zenith-List: Re: Digital Level Final
Here's how I measure an angle with a bubble level. I shim the level on one end
until it's level. I divide the thickness of the shim by the length of the level
and take the arc sine. On your home computer that's inverse sine. Example:
1/32 shim divided by 48" = 6.67e-4. Take the inverse sine = .038 degrees
Or I can go the other way. I can say what shim = 1 degree. So I take the sine
of 1 x length of the level.
Example: (lets use a short level this time)
Sine of 1 = .01745 x 4" long level = .069.
So if I can level my 4" long bubble level with less than a .069 shim I'm under
1
degree out of level.
Anyway I'm using the Dynon too, and I AM confident that the compass is within
1/10th of a degree of level using the above method.
In a way you're right though because my calculator IS digital and I'm using it
when I measure angles.
Dan
naumuk(at)alltel.net wrote:
> Dan-
> I have 6 bubble levels, from a line level to 4'. I agree a bubble level
> is just as accurate as a digital, but how do you accurately READ a 1 degree
> deviation? I can't, and despite how confident you sound, I bet you can't
> either.
>
> Bill
> do not archive
> ---
--------
Scratch building XL with Corvair Engine
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=219233#219233
________________________________________________________________________
Email message sent from CompuServe - visit us today at http://www.cs.com
Message 18
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All-
Someone recently sent me a picture of their step sided radio tray.
Sad to say, I lost it. Please resend. Thanks.
Bill Naumuk
Townville, Pa.
HDS 601MG/Corvair 95%
Message 19
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Thanks, Roger, I'll keep checking your suggestions...... really don't want to build
an engine myself (assuming I even could) so would love to find a screamin'
deal - well in aviation, I'll settle for a good deal....
Dave
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=219267#219267
Message 20
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Check barnstormers under piston engines, I saw a couple goodies just today.
Roger
-----Original Message-----
From: owner-zenith-list-server@matronics.com
[mailto:owner-zenith-list-server@matronics.com] On Behalf Of vayuwings
Sent: Saturday, December 13, 2008 7:23 PM
Subject: Zenith-List: Re: Torque tube
Thanks, Roger, I'll keep checking your suggestions...... really don't want
to build an engine myself (assuming I even could) so would love to find a
screamin' deal - well in aviation, I'll settle for a good deal....
Dave
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=219267#219267
Message 21
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| Subject: | Re: Cost savings |
OK, so I'm the one Ludite in the crowd, funny for a computer programmer, that works
for a hi-tech electronics company :)
Just a few thoughts in this vain. Most of us are trying to realize a piece of
1930's technology for our selves, ie a piston driven aluminum airplane. For the
most post, we'd be fine using the same tools that were being used back then.
I guess all I was saying is that a fancy digital or laser guided tool is not
always required, or even the best choice. I guess I spoke up because it was
almost sounding like the point being made was that a digital level is required
for the task of leveling the compass. I'd like those that don't have one to
know that it's not.
Can't wait to see all the scram jet zodiacs that you cutting edge guys are making!
:o)
Dan Dempsey
601xl/Corvair plans builder
--------
Scratch building XL with Corvair Engine
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=219277#219277
Message 22
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| Subject: | Re: Cost savings |
forgive me for sticking my nose into this conversation, but what I saw was a
good excuse to get a new toy.
I heard Santa went to Sears the other day... Is it Xmas yet?
Happy build to all and to all a good flight !
Carlos
CH601-HD, plans
tail feathers, one wing done, second wing before Xmas.
do not archive
2008/12/13 leinad <leinad@hughes.net>
>
> OK, so I'm the one Ludite in the crowd, funny for a computer programmer,
> that works for a hi-tech electronics company :)
> Just a few thoughts in this vain. Most of us are trying to realize a piece
> of 1930's technology for our selves, ie a piston driven aluminum airplane.
> For the most post, we'd be fine using the same tools that were being used
> back then. I guess all I was saying is that a fancy digital or laser guided
> tool is not always required, or even the best choice. I guess I spoke up
> because it was almost sounding like the point being made was that a digital
> level is required for the task of leveling the compass. I'd like those that
> don't have one to know that it's not.
> Can't wait to see all the scram jet zodiacs that you cutting edge guys are
> making! :o)
> Dan Dempsey
> 601xl/Corvair plans builder
>
> --------
> Scratch building XL with Corvair Engine
>
>
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