KR> (no subject)

[Paul & Karen Smith]

Hi Pete,

Rule of thumb is never put noisy wiring (motors, transmitters, ignition)
with sensitive wiring (intercom, data, low voltage stuff etc). 

Comms and Transponder are very noisy when they transmit and will interfere
with the position signals of the trim system and may even interfere with the
operation. On a similar note elevator trim motor wiring (and flap motors,
fuel pumps etc) tend to be a bit noisy so don't run them with your intercom
wiring.

If you have to run them together shield the elevator trim wiring (they
usually aren't) and run a high quality coax.
RG58 is only OK for Coms and only over shorter distance. RG400 is better and
should be used for transponders or longer comms runs, RG223 is better still.

The best option is to run comms along one side and trim along the other.

Another note, those self adhesive pads are prone to fall off in time
(especially in the Ausie sun). If you must use them, prepare the bond area
as you would for any other bonding job ... Clean and abrade the area for
maximum mechanical bond.  

I intend to make little stirrups (bonded in line with the loom) that I can
use the zip-ties to mount the loom. To remove the loom simply snip the ties
and replace. The stirrups can be easily made by wetting out 2 or 3 layers of
BID and then laying this over a drinking straw leaving an inch or so either
side flat on a plastic sheet. Once set I cut them into 1/4" strips that,
from the side, look like the Omega symbol with elongated sides.

Paul Smith
Brisbane, AUSTRALIA
pk.sm...@bigpond.net.au
http://kr2spacemodulator.blogspot.com/


-Original Message-

I'm presently installing wiring in the aft portion of the fuselage,
specifically the trim actuator control wiring to the Ray Allen unit in the
elevator and the com coax to the copper foil dipole that will be on the
vertical stabilizer.   
My question is can I run them together in the same mounting clamps without
having an RF interference issue do to close proximity or should they be
separated? 

KR> trim servo shielding

[Pete Klapp]

Mark

Thanks for the info

Pete 
> From: n5...@hiwaay.net
> To: kr...@mylist.net
> Subject: Re: KR> trim servo shielding
> Date: Sat, 30 Jan 2010 16:36:42 -0600
> 
> Pete Klapp wrote:
> 
> > I'm presently installing wiring in the aft portion of the fuselage, 
> > specifically the trim actuator control wiring > 
> I would run them on opposite sides. When I transmit some of my trim 
> display's LED indicators light, and sometimes my EIS alarm goes off, and 
> mine are ALREADY on opposite sides of the plane! I guess I need to shield 
> some stuff, but I'm used to it now.
> 
> Mark Langford
> N56ML "at" hiwaay.net
> website at http://www.N56ML.com
> 
> 
> 
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> please see other KRnet info at http://www.krnet.org/info.html

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KR> Latest intake manifold experiment

[John C Edwards]

Yes icing,or condensation can and will manifest itself downstream in the 
intake manifold.  The  "T" in the intake manifold of updraft/sidedraft 
manifolds creates a high pressure area where the air/fuel mixture 
accelerates and bends as it goes around the corner and up into the two 
intake runners up to the heads like on a VW or Corvair. At that point, 
the temperature drops, and condensation or icing occurs depending on how 
close to the exhaust is the the intake manifold and what the undercowl 
temperature is at that point. Pull the lower cowling off your aircraft 
if you dont believe me on hot summer day and look at the area just aft 
of the carb where it enters the "T" of your intake manifold and you will 
see the condensation form on the outside at the very least.

On 1/30/2010 2:34 PM, samantha toner wrote:
> Icing occurs on the throttle flag due to the depression of air as it exists  
> the venturi.It wont manifest itself downstream in the manifold as the 
> pressure has equilised
> --- On Sat, 30/1/10, Dan Heath  wrote:
>
>
> From: Dan Heath
> Subject: RE: KR>  Latest intake manifold experiment
> To: "'KRnet'"
> Date: Saturday, 30 January, 2010, 12:00
>
>
> A concern that I have about that is icing.  I think that with all those very
> small wires, it would be easy for it to ice over.
>
> See N64KR at http://KRBuilder.org - Then click on the pics 
> See you at the 2010 - KR Gathering in Richmond, Ky - I39
> There is a time for building and a time for FLYING and the time for Flying
> has begun.
> Daniel R. Heath - Lexington, SC
>
> -Original Message-
>
>
> In my younger days we used to put aluminum window screening sandwiched
> between 2 carburetor spacers to help atomize fuel.
>
>
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> to UNsubscribe from KRnet, send a message to krnet-le...@mylist.net
> please see other KRnet info at http://www.krnet.org/info.html
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> to UNsubscribe from KRnet, send a message to krnet-le...@mylist.net
> please see other KRnet info at http://www.krnet.org/info.html
>
>
>

KR> trim servo shielding

[Mark Langford]

Pete Klapp wrote:

> I'm presently installing wiring in the aft portion of the fuselage, 
> specifically the trim actuator control wiring to the Ray Allen unit in the 
> elevator and the com coax to the copper foil dipole that will be on the 
> vertical stabilizer.  My plan is to run it along the fuselage side using 
> nylon clamps. My question is can I run them together in the same mounting 
> clamps without having an RF interference issue do to close proximity or 
> should they be separated? If separation is required, how far apart? Thanks 
> in advance for any info you can provide<

I would run them on opposite sides.  When I transmit some of my trim 
display's LED indicators light, and sometimes my EIS alarm goes off, and 
mine are ALREADY on opposite sides of the plane!  I guess I need to shield 
some stuff, but I'm used to it now.

Mark Langford
N56ML "at" hiwaay.net
website at http://www.N56ML.com

KR> Latest intake manifold experiment

[samantha toner]

Icing occurs on the throttle flag due to the depression of air as it exists  
the venturi.It wont manifest itself downstream in the manifold as the pressure 
has equilised
--- On Sat, 30/1/10, Dan Heath  wrote:


From: Dan Heath 
Subject: RE: KR> Latest intake manifold experiment
To: "'KRnet'" 
List-Post: krnet@list.krnet.org
Date: Saturday, 30 January, 2010, 12:00


A concern that I have about that is icing.  I think that with all those very
small wires, it would be easy for it to ice over.

See N64KR at http://KRBuilder.org - Then click on the pics 
See you at the 2010 - KR Gathering in Richmond, Ky - I39
There is a time for building and a time for FLYING and the time for Flying
has begun.
Daniel R. Heath - Lexington, SC

-Original Message-


In my younger days we used to put aluminum window screening sandwiched
between 2 carburetor spacers to help atomize fuel. 


___
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KR> (no subject)

[Pete Klapp]

Netters


I need some advice.



I'm presently installing wiring in the aft portion of the fuselage, 
specifically the trim actuator control wiring to the Ray Allen unit in the 
elevator and the com coax to the copper foil dipole that will be on the 
vertical stabilizer.  My plan is to run it along the fuselage side using nylon 
clamps. My question is can I run them together in the same mounting clamps 
without having an RF interference issue do to close proximity or should they be 
separated? If separation is required, how far apart? Thanks in advance for any 
info you can provide.



Pete Klapp, building KR-2S N729PK,

Canton, Ohio

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KR> Latest intake manifold experiment

[Larry Knox]

I think you are right about that. la...@lebanair.com

-Original Message-
From: krnet-boun...@mylist.net [mailto:krnet-boun...@mylist.net] On Behalf
Of Dan Heath
Sent: Saturday, January 30, 2010 4:00 AM
To: 'KRnet'
Subject: RE: KR> Latest intake manifold experiment

A concern that I have about that is icing.  I think that with all those very
small wires, it would be easy for it to ice over.

See N64KR at http://KRBuilder.org - Then click on the pics 
See you at the 2010 - KR Gathering in Richmond, Ky - I39
There is a time for building and a time for FLYING and the time for Flying
has begun.
Daniel R. Heath - Lexington, SC

-Original Message-


In my younger days we used to put aluminum window screening sandwiched
between 2 carburetor spacers to help atomize fuel. 


___
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please see other KRnet info at http://www.krnet.org/info.html

KR> Latest intake manifold experiment

[Larry Knox]

We used to do this same trick with our old Chevy dump trucks so they had
enough power to get in and out of the silage pits to dump the silage. Don't
know how much power we gained on the old 6 cylinder engines but it was
enough to do the job. la...@lebanair.com 

-Original Message-
From: krnet-boun...@mylist.net [mailto:krnet-boun...@mylist.net] On Behalf
Of mbz...@comcast.net
Sent: Saturday, January 30, 2010 12:40 AM
To: kr...@mylist.net
Subject: Re: KR> Latest intake manifold experiment

In my younger days we used to put aluminum window screening sandwiched
between 2 carburetor spacers to help atomize fuel. Theory was that the
screen creates micro vortexes and helps with a more even air/fuel mixture
distribution to all cylinders. We didn't have a dino machine to test this
out, but my guess would be that we gained at least 5hp. 
This might be worth looking into for the uneven burn problems. 
___
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KR> Latest intake manifold experiment

[Dan Heath]

A concern that I have about that is icing.  I think that with all those very
small wires, it would be easy for it to ice over.

See N64KR at http://KRBuilder.org - Then click on the pics 
See you at the 2010 - KR Gathering in Richmond, Ky - I39
There is a time for building and a time for FLYING and the time for Flying
has begun.
Daniel R. Heath - Lexington, SC

-Original Message-


In my younger days we used to put aluminum window screening sandwiched
between 2 carburetor spacers to help atomize fuel. 

KR> Latest intake manifold experiment

[Tim]

We did the same, but sandwiched in between the screen's, was one of Mom's 
Kotex's and we then called it anAir Filter  :-)

CldLk-Tim


- Original Message - 
From: 
To: 
Sent: Saturday, January 30, 2010 1:40 AM
Subject: Re: KR> Latest intake manifold experiment


In my younger days we used to put aluminum window screening sandwiched 
between 2 carburetor spacers to help atomize fuel. Theory was that the 
screen creates micro vortexes and helps with a more even air/fuel mixture 
distribution to all cylinders. We didn't have a dino machine to test this 
out, but my guess would be that we gained at least 5hp.
This might be worth looking into for the uneven burn problems.
___
Search the KRnet Archives at http://www.maddyhome.com/krsrch/index.jsp
to UNsubscribe from KRnet, send a message to krnet-le...@mylist.net
please see other KRnet info at http://www.krnet.org/info.html 

KR> Latest intake manifold experiment

[mbz...@comcast.net]

In my younger days we used to put aluminum window screening sandwiched between 
2 carburetor spacers to help atomize fuel. Theory was that the screen creates 
micro vortexes and helps with a more even air/fuel mixture distribution to all 
cylinders. We didn't have a dino machine to test this out, but my guess would 
be that we gained at least 5hp. 
This might be worth looking into for the uneven burn problems.