Today's Message Index:
----------------------
1. 01:46 AM - Re: Push/Pull tubes (New Design) (Pete54)
2. 01:57 AM - Re: Options for Already-Certified 601XL's (Pete54)
3. 12:14 PM - Re: Push/Pull tubes (New Design) (Thruster87)
4. 05:21 PM - Re: Re: Push/Pull tubes (New Design) (afterfxllc@aol.com)
5. 05:36 PM - Avionics (N117FA)
6. 08:50 PM - Agnos AR NTSB Pics are up (lwhitlow)
7. 09:24 PM - Re: Agnos AR NTSB Pics are up (Sabrina)
Message 1
| INDEX | Back to Main INDEX |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | Re: Push/Pull tubes (New Design) |
I'm curious how you intend to support the pushrods. They are pretty long and so
there is some potential for them buckling due to the length / slenderness ratio.
If they attach directly to the horn, the ends will be moving is an arc - and so
supporting the mid-part to stop buckling would be very difficult. Or is your
intention to use a high enough length / slenderness ratio that compression loading
is not a problem?
--------
Pete Morris
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=276544#276544
Message 2
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | Re: Options for Already-Certified 601XL's |
To be a legal microlight in the UK the maximum empty weight is 268kg, somewhat
short of numbers you are talking. The 472 figure also has to include a ballistic
chute which adds a bit of weight.
With full tanks an xl would be a single seater with the numbers you quote. Mine
weighs 304kg empty.
A UK microlight must be able to carry two 86kg people and an hours fuel - this
is what leads to the 268kg empty weight restriction.
--------
Pete Morris
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=276545#276545
Message 3
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | Re: Push/Pull tubes (New Design) |
Pete54 wrote:
> I'm curious how you intend to support the pushrods. They are pretty long and
so there is some potential for them buckling due to the length / slenderness
ratio.
>
> If they attach directly to the horn, the ends will be moving is an arc - and
so supporting the mid-part to stop buckling would be very difficult. Or is your
intention to use a high enough length / slenderness ratio that compression
loading is not a problem?
Using 1 1/4" OD x 0.058" wall thickness works well in mine and with no problems
due to buckling.I have also put edge protection around the lightening holes
on the ribs which would stop the rods from bending too much, so to make the
system more safe.I did have to re-do the bell crank throws using 4130 tangs to
get the correct movement travel Cheers T87
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=276617#276617
Message 4
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | Re: Push/Pull tubes (New Design) |
I have decided to use 1 1/4 .049 and it will need no support.... I am how
ever also going to try and add elevator push pull tubes but the jury is ou
t on the way I am going about it. The Bell crank is level but it doesn't
look like it in the pictures so the push pull tube is not moving up and
down at all. The throw is exactly the same as Zenith's Bell crank so the
geometry works also. I am going to back the brackets up with a .125 plate
with platenuts to remove the brackets and install a inspection plate to
inspect the new bell crank.
One problem I ran into is the elevator control at the stick will be in the
way but I plan on adding a push/pull rod that goes to a aft bell crank an
d attaches to the control tube and then either shorten the cables and re
attach them to the new bell crank or add the push pull tubes.
See how much fun you can have with a upgrade???????? I love this design st
uff....
Jeff
-----Original Message-----
From: Thruster87 <alania@optusnet.com.au>
Sent: Mon, Dec 7, 2009 3:12 pm
Subject: Zenith-List: Re: Push/Pull tubes (New Design)
ete54 wrote:
I'm curious how you intend to support the pushrods. They are pretty long
and
o there is some potential for them buckling due to the length / slendernes
s
atio.
If they attach directly to the horn, the ends will be moving is an arc -
and
o supporting the mid-part to stop buckling would be very difficult. Or is
your
ntention to use a high enough length / slenderness ratio that compression
oading is not a problem?
sing 1 1/4" OD x 0.058" wall thickness works well in mine and with no
roblems due to buckling.I have also put edge protection around the lighten
ing
oles on the ribs which would stop the rods from bending too much, so to ma
ke
he system more safe.I did have to re-do the bell crank throws using 4130
tangs
o get the correct movement travel Cheers T87
ead this topic online here:
http://forums.matronics.com/viewtopic.php?p=276617#276617
========================
===========
-
-= -- Please Support Your Lists This Month --
-= (And Get Some AWESOME FREE Gifts!)
-
-= November is the Annual List Fund Raiser. Click on
-= the Contribution link below to find out more about
-= this year's Terrific Free Incentive Gifts provided
-= by:
-= * AeroElectric www.aeroelectric.com
-= * The Builder's Bookstore www.buildersbooks.com
-= * HomebuiltHELP www.homebuilthelp.com
-
-= List Contribution Web Site:
-
-= --> http://www.matronics.com/contribution
-
-= Thank you for your generous support!
-
-= -Matt Dralle, List Admin.
-
-========================
========================
===========
-= - The Zenith-List Email Forum -
-= Use the Matronics List Features Navigator to browse
-= the many List utilities such as List Un/Subscription,
-= Archive Search & Download, 7-Day Browse, Chat, FAQ,
-= Photoshare, and much much more:
-
-= --> http://www.matronics.com/Navigator?Zenith-List
-
-========================
========================
===========
-= - MATRONICS WEB FORUMS -
-= Same great content also available via the Web Forums!
-
-= --> http://forums.matronics.com
-
-========================
========================
===========
Message 5
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
Avionics
I have decided to part out the avionics in my AMD Zodiac CH 650 LSi. If anyone
is interested, please PM me for more information.
Aspen Avionics Pro PFD
Garmin GNS530W (WAAS)
Garmin SL30 Nav/Com - (Pending offer)
Garmin GTX 330 Mode S Transponder
Garmin GMA 340 Audio Panel - (Pending offer)
TruTrak DigiFlight II VSGV autopilot
Also selling complete Airframe with engine minus above listed Avionics. In need
of the spar mod. If interested, please PM me for information
Thank you,
Younis Forsyth
http://www.ForsythAviation.us
--------
www.ForsythAviation.us
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=276653#276653
Message 6
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | Agnos AR NTSB Pics are up |
Agnos AR NTSB Pics are up
I saw them posted over on the zenith.aero site here
http://www.zenith.aero/forum/topics/ntsb-photos-from-most-recent
My question after viewing them is still the same as it was after seeing the Yuba
City pictures
What failed first??
The pics show the compression buckling in the rear spar at RR7 ( the rib that mounts
the bell crank) and in other places inboard But the notes also indicate
that the cables, bell crank, aileron push rod and aileron bracket were ripped
out through the wing as the wing left the airframe and all remained attached
to the fuselage. Could some of the noted damage have come from this stuff getting
pulled through the wing?? I mean that bell crank is not gonna fit through
the holes in the ribs and if it comes out that way could it cause the bends
in the rear spar?? Pics of the interior of that wing would help.
The score marks on the flap are also interesting. Enough upward force was put
on the flap push it up past the stop so its upper leading edge made contact with
the rivet bottoms in the rear spar. Or did the wing rear spar move down, with
the flap held in place by the control arm thus causing the scars Again a
pic of the rear spar doubler / mounting hole and the rear spar attach bracket
would answer the question
I would really like to see the failure mode of the main spar to center spar and
the rear spar to rear attach
You would think in this day and age with digital cameras what they are, there would
be hundreds of pictures. I mean its only electrons
Larry Whitlow
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=276667#276667
Message 7
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | Re: Agnos AR NTSB Pics are up |
The score marks could easily have been made as the wing was in free fall and the
flap was flapping on the way down...
Are main spar root and center spar pictures available?
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=276671#276671
Other Matronics Email List Services
These Email List Services are sponsored solely by Matronics and through the generous Contributions of its members.
-- Please support this service by making your Contribution today! --
|