Today's Message Index:
----------------------
1. 08:35 AM - Re: Lightspeed Ignition Module (Vincent Welch)
2. 01:51 PM - Check Valve For Static System Cabin Venting... (Matt Dralle)
3. 04:56 PM - Instrumentation Checkout - HDTV Video (Matt Dralle)
4. 07:48 PM - Re: Check Valve For Static System Cabin Venting... (Matt Dralle)
Message 1
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| Subject: | Lightspeed Ignition Module |
Roger=2C
Mine is also mounted on the hot side of the firewall with a shroud and blas
t tube. I have had no problems in the last five years. I believe that the
primary reason that Klaus wants a direct connection to the battery is to m
inimize voltage drop considerations during starting. There were some insta
nces of the starter pulling the voltage down at the buss to levels that cau
sed problems with reliable lightspeed operation.
Vince
From: roger@smartdrive.com
Subject: RV8-List: Lightspeed Ignition Module
Completing the firewall forward on a RV-8A O-360 4 cyl. I have one mag and
one Lightspeed Plasma III. I am locating the Ignition Module would like so
me feedback on experiences from others. My concern is ignition noise in ra
dios and interference with sensor wires. Mounting on the cold side of the
firewall is difficult due to space unless I mount the module right behind t
he panel causing potential interference. Has anyone experienced noise or
sensor interference problems and what did you do to solve them? Has anyone
mounted the module on the hot side of the firewall? How did you protect ag
ainst heat and moisture? Any problems with a hot side installation?
Also the instructions has the power go straight from the battery or battery
side of the master relay to a =93pull-able=94 circuit breaker and allows t
he unit to be turned on and off with a standard mag p-lead type connection.
=93all Plasma II Plus and Plasma III CDI systems can be operated with a sta
ndard aircraft key switch. A "P"-Lead (wired to the output connector) is p
rovided and should be connected to the key switch in the same way as the ma
gneto "P"-Lead. There is no current drain on your battery when power is su
pplied via the input connector and the key switch is in the off position.
A pull-able circuit breaker should still be installed in the positive power
wire.=94
Even though it states there is no power draw you still have a unprotected w
ire from the battery to the panel breaker that is hot 24/7 and unless you p
ull the breaker=2C the wire is hot all the way to the module even when park
ed. This just does not seem reasonable. I would like to know what others
have done.
Thanks=2C Roger Smart
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Message 2
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| Subject: | Check Valve For Static System Cabin Venting... |
Dear Listers,
Looking at the requirements for IFR certification of the RV-8, it looks like the
only thing I don't have is an "alternate static source". This seems like it
would be as simple as adding a "T" valve in the 1/4 neoprem static air tube that
goes along under the left hand canopy rail.
Does anyone have any suggestions on something I could just cut the tube and stick
in line with a little thumb screw to switch between the fuselage or cabin source?
I'm assuming this will meet the requirement?
Thanks!
PS - Attached are a couple of pictures from Taxi-testing and Magnetometer calibration
this weekend. Cool?
Matt Dralle
RV-8 #82880 N998RV
http://www.mattsrv8.com - Matt's RV-8 Construction Log
Status: Final Bits/Inspection/Test Flight
Message 3
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| Subject: | Instrumentation Checkout - HDTV Video |
Dear Listers,
Last week I ran the IO-390 on the RV-8 for about 12 minutes and went though and
checked all of the various systems and sensors. I talked though the each of
the things as I was checking them in an HD video I edited of the session.
Thought some might find it interesting...
http://www.youtube.com/MattsRV8?v=-byMWhyTwjA
.
Matt Dralle
RV-8 #82880 N998RV
http://www.mattsrv8.com - Matt's RV-8 Construction Log
Status: Final Bits/Inspection/Test Flight
Message 4
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| Subject: | Re: Check Valve For Static System Cabin Venting... |
At 03:53 PM 4/19/2010 Monday, you wrote:
>--> RV-List message posted by: Linn Walters <pitts_pilot@bellsouth.net>
>
>Matt, cut the tubing, insert a 'T' with a short stub of tubing. Put a plug in
the tube of a type that you can pull out easily if needed.
>Simple, light, and inexpensive.
>Linn
>Matt Dralle wrote:
>>Dear Listers,
>>
>>Looking at the requirements for IFR certification of the RV-8, it looks like
the only thing I don't have is an "alternate static source". This seems like
it would be as simple as adding a "T" valve in the 1/4 neoprem static air tube
that goes along under the left hand canopy rail.
>>
>>Does anyone have any suggestions on something I could just cut the tube and stick
in line with a little thumb screw to switch between the fuselage or cabin
source?
>>
>>I'm assuming this will meet the requirement?
>>
>>Thanks!
What a great idea, Linn! Thanks. Here's what I did tonight including a couple
of pictures...
I added a small "T" Nylon fitting in the 1/4" tube for static air just in front
of the instrument panel under the left cockpit rail. I cut a short piece of
1/4" tubing and filled it with black RTV and then put a piece of heat shrink tubing
over it to form a handle. The whole thing fits nicely under the cockpit
rail and from the pilot's position is just barely visible, yet can be accessed
easy. In the event that icing conditions occur, the fitting can be unscrewed
and the plug removed for cabin venting.
Matt Dralle
RV-8 #82880 N998RV
http://www.mattsrv8.com - Matt's RV-8 Construction Log
http://www.youtube.com/MattsRV8 - Matt's RV-8 HDTV YouTube Channel
Status: Final Bits/Inspection/Test Flight
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