Today's Message Index:
----------------------
1. 05:58 AM - Re: RV9-List Digest: 4 Msgs - 03/21/03 (Matthew Brandes)
2. 07:37 AM - Free castering nose wheel (Gozewijn Vlasblom)
3. 08:02 AM - Re: Free castering nose wheel (Larry Perryman)
4. 11:48 AM - Wing Jig Question (Ken Moak)
5. 01:59 PM - [ Bob Paulo ] : New Email List Photo Share Available! (Email List Photo Shares)
6. 04:53 PM - Re: estra hole (JOHN KERR)
7. 06:12 PM - Re: Wing Jig Question (Larry Perryman)
8. 06:28 PM - ground handling and nosewheel (Welch, Ivo)
9. 06:34 PM - Re: Wing Jig Question (DThomas773@aol.com)
10. 06:46 PM - Re: Wing Jig Question (Larry Perryman)
Message 1
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| Subject: | RE: RV9-List Digest: 4 Msgs - 03/21/03 |
--> RV9-List message posted by: Matthew Brandes <mbrandes@irr.com>
Ed,
Can you give us a short primer on propellers for those of us not quite in
the know yet. (You may have an FAQ already typed up.)
I was flipping through my "Bingelis on Engines" book last night and he
described pitch as "... the distance in inches that a propeller section will
advance in one revolution. Both blade angle and pitch are measured at the
airfoil section located at 75% of the blade radius, but apparently not
always in the same manner."
Given this (and his example) the pitch of a blade is determined by it's
diameter. How does one re-pitch a blade? Are you really just changing the
angle of the blade?
Matthew
RV-9A
.. and a long way from choosing a prop.
-----Original Message-----
From: RV9-List Digest Server
Subject: RV9-List Digest: 4 Msgs - 03/21/03
______ Message 2______________________
Time: 08:22:32 AM PST US
From: "Ed Zercher" <ez@sensenich.com>
Subject: RE: RV9-List: RV9A Prop Pitch
--> RV9-List message posted by: "Ed Zercher" <ez@sensenich.com>
Ivo and all,
Since Ivo made the statement, "I think I can only order 79 or 81 from
Vans,"
and I hear it all the time, I thought I would get the word out that you
can
order whichever pitch best suits your aircraft's needs. In Ivo's case,
if
you would like to start out sitting on the fence, you may order an 80
pitch.
The 70CM series can be ordered anywhere from a 73 to an 84.
Ed
Message 2
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| Subject: | Free castering nose wheel |
--> RV9-List message posted by: "Gozewijn Vlasblom" <vlasblom@ripnet.com>
There was a report about nose wheel shimmering after landing.
This is a problem that I am familiar with.
I presently fly a Grumman Tiger. This plane is very comparible to an RV,
particularly on the ground.
The nose wheel of a tiger is limited in the movement along the vertical axis
by means of friction washers. I tighten the bolt on the vertical axel until
I need 20 lbs of traction on the nose wheel axel to make it move. For this I
use a fisherman's scale! Very unsophisticated but very easy and effective.
Hope this will elp.
Goz Vlasblom 90171
Message 3
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| Subject: | Re: Free castering nose wheel |
--> RV9-List message posted by: "Larry Perryman" <larry-perryman@txucom.net>
This is the same procedure described for the RV also.
It works.
Regards
Larry Perryman
----- Original Message -----
From: "Gozewijn Vlasblom" <vlasblom@ripnet.com>
Subject: RV9-List: Free castering nose wheel
> --> RV9-List message posted by: "Gozewijn Vlasblom" <vlasblom@ripnet.com>
>
> There was a report about nose wheel shimmering after landing.
> This is a problem that I am familiar with.
> I presently fly a Grumman Tiger. This plane is very comparible to an RV,
> particularly on the ground.
> The nose wheel of a tiger is limited in the movement along the vertical
axis
> by means of friction washers. I tighten the bolt on the vertical axel
until
> I need 20 lbs of traction on the nose wheel axel to make it move. For this
I
> use a fisherman's scale! Very unsophisticated but very easy and effective.
> Hope this will elp.
> Goz Vlasblom 90171
>
>
Message 4
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| Subject: | Wing Jig Question |
--> RV9-List message posted by: Ken Moak <ken_moak@yahoo.com>
Thanks to everyone that helped me with the empennage.
A Technical Counselor (Jim) came out last week and the
first milestone has happened. No rework, so I closed
things up. Thanks to all the advise, either direct or
in the archives.
Now I'm starting the Wing and have a couple of
questions.
1. About how heavy is a wing?
2. About how far off the uprights do you place the
spar? I am making it movable much like Todd Houg
shows on his WEB site. I have a cross member running
between my uprights and need to determine how much
space I need to get between the wing and the cross
member.
3. About how high off the floor did you put the spar?
I know this would depend on the person, but a general
idea would be nice
4. I would like to hang both wings at once, any
comments?
Any advice would be appreciated.
Ken
90608
Building the wing jig
http://platinum.yahoo.com
Message 5
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| Subject: | [ Bob Paulo ] : New Email List Photo Share Available! |
--> RV9-List message posted by: Email List Photo Shares <pictures@matronics.com>
A new Email List Photo Share is available:
Poster: Bob Paulo <Bobpaulo@aol.com>
Subject: RV Project For Sale
http://www.matronics.com/photoshare/Bobpaulo@aol.com.03.23.2003/index.html
o Main Photo Share Index
http://www.matronics.com/photoshare
o Submitting a Photo Share
If you wish to submit a Photo Share of your own, please include the
following information along with your email message and files:
1) Email List or Lists that they are related to:
2) Your Full Name:
3) Your Email Address:
4) One line Subject description:
5) Multi-line, multi-paragraph description of topic:
6) One-line Description of each photo or file:
Email the information above and your files and photos to:
pictures@matronics.com
Message 6
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--> RV9-List message posted by: JOHN KERR <kerrjohna@comcast.net>
thanks, pardon the senior moment.....
----- Original Message -----
From: John Oliveira <oliveira@frontiernet.net>
Subject: Re: RV9-List: estra hole
> --> RV9-List message posted by: "John Oliveira"
> <oliveira@frontiernet.net>
> The hole for the tie downs
>
> John Oliveira - 90054
> Fuselage arrives this week - Wings and Tail done
> ----- Original Message -----
> From: "JOHN KERR" <kerrjohna@comcast.net>
> To: <rv9-list@matronics.com>
> Subject: RV9-List: estra hole
>
>
> > --> RV9-List message posted by: JOHN KERR <kerrjohna@comcast.net>
> >
> >
> > there is an extra hole in the bottom of the leaing edge skin,
> about
> > where the pitot will go but it misses the spar flange. what is
> its
> > purpost?
> >
> >
> >
> >
> >
> >
> >
>
>
> _-
>
======================================================================_-
= - The RV9-List Email Forum -
> _-
>
======================================================================_-
= !! NEWish !!
> _-
>
======================================================================_-
= List Related Information
> _-
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>
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>
Message 7
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| Subject: | Re: Wing Jig Question |
--> RV9-List message posted by: "Larry Perryman" <larry-perryman@txucom.net>
Ken,
For my RV-9A:
1. Two people can easily handle a wing. They are a bit bulky for one. Weight
maybe 100 lbs.
2. I put mine about the middle of my chest. Measure one rib. That is about
how far it will hang down.
3. My bottom spar was about 20 inches off the floor. Just enough to get a
screw jack on a milk crate under the spar.
4. No. You will need to get to both sides of the wing so do them one at a
time.
The wing skins are one place where two people is almost a necessity.
I went to the local aviation store (Home Depot) and got some 1.5 x 1.5
aluminum angle and made the cross braces . I then got some felt strips with
adhesive backing and put on top to cushion the spar. A hardware bolt through
one of the end holes in the spar helps hold it in place while riveting. You
may have to get creative on the wing tip end since one rib goes right at the
end.
Once you get one skin on, you can take the wing and put it on a table to do
the other skins. It helps being able to work at one height.
Hope my ramblings help. Keep building. It is worth it in the end.
Regards
Larry Perryman
N194DL
----- Original Message -----
From: "Ken Moak" <ken_moak@yahoo.com>
Subject: RV9-List: Wing Jig Question
> --> RV9-List message posted by: Ken Moak <ken_moak@yahoo.com>
>
> Thanks to everyone that helped me with the empennage.
> A Technical Counselor (Jim) came out last week and the
> first milestone has happened. No rework, so I closed
> things up. Thanks to all the advise, either direct or
> in the archives.
>
> Now I'm starting the Wing and have a couple of
> questions.
>
> 1. About how heavy is a wing?
>
> 2. About how far off the uprights do you place the
> spar? I am making it movable much like Todd Houg
> shows on his WEB site. I have a cross member running
> between my uprights and need to determine how much
> space I need to get between the wing and the cross
> member.
>
> 3. About how high off the floor did you put the spar?
> I know this would depend on the person, but a general
> idea would be nice
>
> 4. I would like to hang both wings at once, any
> comments?
>
> Any advice would be appreciated.
>
> Ken
> 90608
> Building the wing jig
>
> http://platinum.yahoo.com
>
>
Message 8
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| Subject: | ground handling and nosewheel |
--> RV9-List message posted by: "Welch, Ivo" <ivo.welch@yale.edu>
Thanks, Leland. I will definitely check into panel design and nosewheel nut
breakout force. I think I will try the XCOM rather than the ICOM, though.
They
are not as strong a radio as the SL40, but the weaker radios will suffice
for my
purpose. (Emergency, low power.) The SL40 is still quite a bit bigger.
I will check with David on avionics purchases, too. My big problem is not
finding someone to sell me avionics cheap, but someone to install a
panel/avionics cheap *and* good. I have one recommendation on a shop
already,
but I would love another one. I am not the builder, so I am not even
allowed to
install if I wanted it. I need a good licensed avionics mechanic. Know
someone?
But you have piqued even more curiosity: is there a specific tradeoff
between
high-speed ground handling and turning radius? that is, can I do something
to
improve left-right stability on landing and takeoff, if I rarely need to
turn in
small circles?
regards,
/iaw
Message 9
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| Subject: | Re: Wing Jig Question |
--> RV9-List message posted by: DThomas773@aol.com
Hi,
I agree with everything Larry says except the weight of the wing. 100
pounds? I think my completed wing with control surfaces, wing tips and all
lighting would be less than 60 pounds.
Dennis Thomas
tail dragger tip up
fuselage
Message 10
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| Subject: | Re: Wing Jig Question |
--> RV9-List message posted by: "Larry Perryman" <larry-perryman@txucom.net>
Dennis,
You could be right. It has been almost a year since I built my wings and the
memory falters after a while. My point was that it is not the weight as much
as the bulk of the wings that make them a two person job to move around.
Regards
Larry Perryman
----- Original Message -----
From: <DThomas773@aol.com>
Subject: Re: RV9-List: Wing Jig Question
> --> RV9-List message posted by: DThomas773@aol.com
>
> Hi,
> I agree with everything Larry says except the weight of the wing. 100
> pounds? I think my completed wing with control surfaces, wing tips and
all
> lighting would be less than 60 pounds.
>
> Dennis Thomas
> tail dragger tip up
> fuselage
>
>
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