 |
Matronics Email Lists
Web Forum Interface to the Matronics Email Lists
|
| View previous topic :: View next topic |
| Author |
Message |
carlossa52(at)gmail.com
Guest
|
 Posted: Fri Sep 25, 2009 6:42 pm Post subject: centre wing measurement check (601-HD(S) ) |
 |
|
Hello, all
I am ready to drill the "rear bearing assembly" 6V12-2 to the "rear bearing channel" 6V12-6, but I suspect something is not right:
To have the torque tube 6V13-3 perfectly horizontal, the overlap between 6V12-2 and 6V12-6 needs to be 25 mm, while the plans show 19 mm.
In addition to that, the channel 6V13-4 is too short to be installed diagonally, as per plans. It fits perfectly if assembled the way Jeff Small ( http://mthobby.pcperfect.com/ch601/ch601prjjs.htm ) and Michel Therrien ( http://mthobby.pcperfect.com/ch601/chcontrols3.htm ) did. I'll probably use the same approach, but that's beside the point - it bothers me that things are looking so out of whack.
So far I have managed to assemble everything with little deviation from plans (1 or 2 mm in large assemblies); this is the first real "disagreement" between plans and reality (or at least my version of reality).
Could someone measure and post the following:
Distance between the bottom of the torque tube's horn (the part that attaches to the aileron cables) and the bottom skin, i.e., the clearance between that part and the skin. It should be in the 20 mm range; I have ~17 mm.
Overlap between 6V12-2 and 6V12-6 - the plans say 19 mm, I have 25 mm.
Distance between 6V12-6 and 6V12-5 (this would be the length of the U channel 6V13-4 if it were installed parallel to the fuselage axis). I have 385 mm.
I know this can be a pain to measure, but it would reassure me and allow me to do some work this weekend (or not...).
Thanks much, and have a good weekend.
Carlos
Ch601-HD, plans - one puzzle at a time
Montreal, Canada
[quote][b]
| | - The Matronics Zenith-List Email Forum - | | | Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:
http://www.matronics.com/Navigator?Zenith-List |
|
|
|
| Back to top |
|
 |
larry(at)macsmachine.com
Guest
|
| Posted: Sat Sep 26, 2009 6:54 am Post subject: centre wing measurement check (601-HD(S) ) |
|
|
Hi Carlos,
The diagonal channel made per drawing was too short on mine too, so I
made another that did fit. The crank arm would resolve its clearance
if you reduce the overlap to 19mm. This drawing is not the best example
from Zenith, but logic says that a centered rear bearing hole and
a crank arm having the necessary clearance is the target. If you modify
this in minor ways to get there, you've got the right idea. There won't
be any binding or misalignment that fouls things here or at the other
end of the pivot tube. I do like the example done by Therrien though.
Note the spacer at the front of the channel to get radius clearance for
the crank arm. Sometimes just a little bit of variation is required.
http://www.macsmachine.com/images/controllinkages/full/controltubeSm.gif
Best regards,
Larry McFarland 601HDS at www.macsmachine.com
Carlos Sa wrote:
| Quote: | Hello, all
I am ready to drill the "rear bearing assembly" 6V12-2 to the "rear
bearing channel" 6V12-6, but I suspect something is not right:
To have the torque tube 6V13-3 perfectly horizontal, the overlap
between 6V12-2 and 6V12-6 needs to be 25 mm, while the plans show 19 mm.
In addition to that, the channel 6V13-4 is too short to be installed
diagonally, as per plans. It fits perfectly if assembled the way Jeff
Small ( http://mthobby.pcperfect.com/ch601/ch601prjjs.htm ) and Michel
Therrien ( http://mthobby.pcperfect.com/ch601/chcontrols3.htm ) did.
I'll probably use the same approach, but that's beside the point - it
bothers me that things are looking so out of whack.
So far I have managed to assemble everything with little deviation
from plans (1 or 2 mm in large assemblies); this is the first real
"disagreement" between plans and reality (or at least my version of
reality).
Could someone measure and post the following:
Distance between the bottom of the torque tube's horn (the part that
attaches to the aileron cables) and the bottom skin, i.e., the
clearance between that part and the skin. It should be in the 20 mm
range; I have ~17 mm.
Overlap between 6V12-2 and 6V12-6 - the plans say 19 mm, I have 25 mm.
Distance between 6V12-6 and 6V12-5 (this would be the length of the U
channel 6V13-4 if it were installed parallel to the fuselage axis). I
have 385 mm.
I know this can be a pain to measure, but it would reassure me and
allow me to do some work this weekend (or not...).
Thanks much, and have a good weekend.
Carlos
Ch601-HD, plans - one puzzle at a time
Montreal, Canada
*
*
|
| | - The Matronics Zenith-List Email Forum - | | | Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:
http://www.matronics.com/Navigator?Zenith-List |
|
|
|
| Back to top |
|
|
carlossa52(at)gmail.com
Guest
|
| Posted: Sat Sep 26, 2009 7:16 am Post subject: centre wing measurement check (601-HD(S) ) |
|
|
Good morning, Larry
Except for the measurement discrepancy I described, I have all the parts in their proper position and clear of interference.
The spar is perpendicular to the torque tube, and it turns smoothly. The crank arm clears the bottom skin by some 17 mm.
(Reducing the overlap to 19 mm would put the torque tube in a position not perpendicular to the spar. It needs ~25mm overlap.)
Thanks for the feedback, I feel it is safe to proceed.
Regards
Carlos
2009/9/26 LarryMcFarland <larry(at)macsmachine.com (larry(at)macsmachine.com)>
[quote] --> Zenith-List message posted by: LarryMcFarland <larry(at)macsmachine.com (larry(at)macsmachine.com)>
Hi Carlos,
The diagonal channel made per drawing was too short on mine too, so I made another that did fit. The crank arm would resolve its clearance
if you reduce the overlap to 19mm. This drawing is not the best example from Zenith, but logic says that a centered rear bearing hole and
a crank arm having the necessary clearance is the target. If you modify this in minor ways to get there, you've got the right idea. There won't
be any binding or misalignment that fouls things here or at the other end of the pivot tube. I do like the example done by Therrien though.
Note the spacer at the front of the channel to get radius clearance for the crank arm. Sometimes just a little bit of variation is required.
http://www.macsmachine.com/images/controllinkages/full/controltubeSm.gif
Best regards,
Larry McFarland 601HDS at www.macsmachine.com
[b]
| | - The Matronics Zenith-List Email Forum - | | | Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:
http://www.matronics.com/Navigator?Zenith-List |
|
|
|
| Back to top |
|
|
naumuk(at)windstream.net
Guest
|
| Posted: Sat Sep 26, 2009 9:26 am Post subject: centre wing measurement check (601-HD(S) ) |
|
|
Carlos-
I just measured as best I could (It's getting tough to get back there)
and got pretty much the same measurements as you did originally. I also
remember the diagonal brace being too short and made it longer. Installation
was ala Jeff Small.
It seems we've all run across the same problem, and neither Larry's nor
Jeff's plane have shown any negative conseqences of their actions.
This isn't the last time you'll find anomolies in the HDS plans.
Bill
---
| | - The Matronics Zenith-List Email Forum - | | | Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:
http://www.matronics.com/Navigator?Zenith-List |
|
|
|
| Back to top |
|
|
carlossa52(at)gmail.com
Guest
|
| Posted: Sat Sep 26, 2009 10:21 am Post subject: centre wing measurement check (601-HD(S) ) |
|
|
Bill, thanks for checking and comments!
Might not be the last time I find anomalies in the plans, but I think it is the first for me.
Cheers
Carlos
do not archive
2009/9/26 Bill Naumuk <naumuk(at)windstream.net (naumuk(at)windstream.net)>
[quote] --> Zenith-List message posted by: "Bill Naumuk" <naumuk(at)windstream.net (naumuk(at)windstream.net)>
Carlos-
I just measured as best I could (It's getting tough to get back there) and got pretty much the same measurements as you did originally. I also remember the diagonal brace being too short and made it longer. Installation was ala Jeff Small.
It seems we've all run across the same problem, and neither Larry's nor Jeff's plane have shown any negative conseqences of their actions.
This isn't the last time you'll find anomolies in the HDS plans.
Bill
[b]
| | - The Matronics Zenith-List Email Forum - | | | Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:
http://www.matronics.com/Navigator?Zenith-List |
|
|
|
| Back to top |
|
|
naumuk(at)windstream.net
Guest
|
| Posted: Sat Sep 26, 2009 10:59 am Post subject: centre wing measurement check (601-HD(S) ) |
|
|
Carlos-
The main thing is, keep asking questions. Manana.
Bill
[quote] ---
| | - The Matronics Zenith-List Email Forum - | | | Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:
http://www.matronics.com/Navigator?Zenith-List |
|
|
|
| Back to top |
|
|
MHerder
Joined: 11 Feb 2008
Posts: 143
Location: Fort Worth TX
|
| Posted: Sun Sep 27, 2009 7:57 pm Post subject: Re: centre wing measurement check (601-HD(S) ) |
|
|
Carlos,
Regarding your torque tube question on the HD, I had the same problem. I used mock control cables (nylon string) to make sure that my support did not interfere with the cable locations. Also, regarding any other areas that I had "issues" where plan dimensions did not work off the top of my head... Aileron length (not exactly 2400 MM), bottom outboard wing skin dimensions at the very tip, and the rear center wing fairings (6 e 1-1 I believe). Any of the dimensions that they give you for the wing tips are kind of sketchy at best, I just fit my tips and marks what I needed to cut. Everything elese was pretty good. If I had to grade the plans I'd still give them a solid B+ or A- for overall accuracy wheras Id give the manual C+ or B- at best... It's very evident that once the XL came along, priorities shifted and enhancements and cleanup to HD or HDS plans fell all the way to the bottom, rightly so I guess.
Good luck, I can finally see the bottom of those big old boxes of rivets that came with my kit and I'm looking forward to being done with deburring!
| | - The Matronics Zenith-List Email Forum - | | | Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:
http://www.matronics.com/Navigator?Zenith-List |
|
_________________
Zodiac 601 HD
Jabiru 3300
Wood Sensinich 64x47
Finally Flying |
|
| Back to top |
|
|
|
|
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum
You cannot attach files in this forum
You can download files in this forum
|
Powered by phpBB © 2001, 2005 phpBB Group
|
Get Email Distribution Too!
FAQ
Search
Memberlist
Usergroups
Register
Profile
Log in to check your private messages
Log in
