Today's Message Index:
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0. 12:12 AM - Contributions Down By 17%... (Matt Dralle)
1. 06:06 AM - Fuel Pressure Sender Failure (Ralph E. Capen)
2. 07:12 AM - Re: Test Flight Video - Part 2 - Landing... (richard seiders)
3. 07:20 PM - Re: Test Flight Video - Part 2 - Landing... (Matt Dralle)
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Subject: | Contributions Down By 17%... |
Dear Listers,
As of today, Contributions to the Matronics List Fund Raiser are lagging behind
last year at this time by roughly 17%. I have a Fund Raiser each year simply
to cover my operating costs for the Lists. I *do not* accept any advertising
income to support the Lists and rely solely on the Contributions of members to
keep the expenses paid.
I run all of my own servers and they are housed here locally, and the Internet
connection is a commercial-grade, T1 connection with public address space. I
also maintain a full backup system that does nightly backups of all List-related
data so that in the event of a server crash or worse, all of the Lists and
the many years of List archive data could be restored onto a new server in a matter
of hours.
All of this costs a fair amount of money, not to mention a significant amount of
my personal time. I have a Fund Raiser each year to cover these costs and I
ask that members that feel they receive a benefit from my investments make a
modest Contribution each year to support the continued operation and upgrade of
these services.
If you enjoy the Lists, please make a Contribution today. I also offer some incentive
gifts for larger Contribution levels. At the Contribution Web Wite, you
can use a credit card, Paypal, or personal check to show your support for the
continuation of these services:
http://www.matronics.com/contribution
Or, drop a personal check in the mail to:
Matt Dralle / Matronics
581 Jeannie Way
Livermore CA 94550
USA
Thank you for your support!
Matt Dralle
Matronics Email List Administrator
Message 1
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Subject: | Fuel Pressure Sender Failure |
Thought I would share this.
Yesterday morning, I launched from Laurel, DE (N06) destined for Campbell Field,
VA (9VG).
Pre-flight, start-up, and run-up were all normal...as were take-off and climbout
to 2500' during the southbound turn...including turning off the boost-pump.
After levelling off, throttling back, setting the prop and mixture, I got a 'check
fuel pressure' warning from my Advanced Flight Systems AF3400EM engine monitor.
Quick scan showed I was still flowing 12 GPH throught the flow meter and
the engine purred along just fine - with the pressure at zero PSI! That didn't
make sense, so I fired up the boost-pump - now the pressure is fluctuating
between 6 and 7 PSI - everything else is fine...but I've already started the
turn back for HomePlate. During the remainder of the trip back I checked various
throttle, prop, mixture, fuel-tank selection and boost-pump settings to see
what changes things. The only change inducing event is the boost-pump which
presents as fluctuating 6-7 PSI while on.
Landing and rollout are uneventful as was taxi back and shutdown.
Post-flight examination and testing showed proper fuel pressure (approx 32 PSI)
with boost pump running and purge valve selected on the ground with engine not
running. There was no fuel leakage at any of the fuel system components. Wire
wiggling sohwed the single fuel pressure sender wire was intact and tightly
captive on the stud - however the stud assembly wiggled a bit within the sender
body. Comparing this to the oil pressure sender mounted right next to it
told me something wasn't right. The pressure sender is mounted on Vans manifold
on the upper part of the firewall. The manifold is mounted with a spacer to
allow the combination oil-pressure light / Hobbs meter activator to clear the
firewall. There is a little curve in the wire to allow for movement.
I have already contacted Advanced Flight Systems for their input on obtaining a
replacement sender. My questions to the list members are: Has anyone else experienced
this failure mode? Is it possible that my spacer contributed to vibration-induced
stress?
Any input would be appreciated,
Ralph
Message 2
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Subject: | Re: Test Flight Video - Part 2 - Landing... |
Matt, what kind of a recorder are you using to capture the audio?
Thanks for feedback.
Dick Seiders
On Sun, Nov 21, 2010 at 3:23 PM, Matt Dralle <dralle@matronics.com> wrote:
>
> This Part II of my RV-8 Test Flight documents slow flight testing and
> landing configuration testing, a couple more circuits around the airport,
> landing, taxi back, and returning to the hangar.
>
> Note that on the taxi back, the windsock is almost a direct crosswind at
> about 10 knots as I recall. Makes me even more proud of that first landing,
> and the fact that I put it right down on the numbers!
>
> Be sure to check out Part I of this video which documents the startup, taxi
> out, take off, and first circuit around the field.
>
> This Video is in full 1080p HDTV, so be sure to select a viewing resolution
> that works with your computer and is higher than the standard 360p default.
> At least the 760p mode, for example. And don't forget to try full-screen
> mode for the most impact!
>
> http://www.youtube.com/user/MattsRV8#p/u/1/2b4C8fb-XAc
>
> Enjoy,
>
> Matt
>
> -
> 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: 124+ Hours TTSN - The Fun Never Stops...
>
Message 3
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Subject: | Re: Test Flight Video - Part 2 - Landing... |
The video in the cockpit and on the ground was shot with Sony HDR-CX550v HD camcorders ( www.sonystyle.com/product/en/hdrcx550v ). The audio was captured with the camcorder using its Audio Line Level input plugged into the "rear passenger 1 headphone output" (not the co-pilot output which is connected to the RV-8's rear passenger headphones) from the PS Engineering 3000 intercom though a homemade impedance matching circuit. The PS3000 mixes the Comm/Intercom/Music nicely and Music audio pull-down during Comm/Intercom is being done by a combination of the PS3000 and the auto-gain control on the camcorder. I installed a 1/8" stereo jack in the backseat area on the right side (see attached pictures). If I were going to do it again I would definitely go with a pair of RCA-style line-level bulkhead jacks instead of the 1/8" stereo jack. I've had some trouble with the right-channel cutting in and out because of the jack/vibration. RCA's would hold much tighter.
-
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: 124+ Hours TTSN - The Fun Never Stops...
At 07:09 AM 11/22/2010 Monday, you wrote:
>Matt, what kind of a recorder are you using to capture the audio?
>Thanks for feedback.
>Dick Seiders
>
>On Sun, Nov 21, 2010 at 3:23 PM, Matt Dralle <<mailto:dralle@matronics.com>dralle@matronics.com> wrote:
>
>This Part II of my RV-8 Test Flight documents slow flight testing and landing
configuration testing, a couple more circuits around the airport, landing, taxi
back, and returning to the hangar.
>
>Note that on the taxi back, the windsock is almost a direct crosswind at about
10 knots as I recall. Makes me even more proud of that first landing, and the
fact that I put it right down on the numbers!
>
>Be sure to check out Part I of this video which documents the startup, taxi out,
take off, and first circuit around the field.
>
>This Video is in full 1080p HDTV, so be sure to select a viewing resolution that
works with your computer and is higher than the standard 360p default. At
least the 760p mode, for example. And don't forget to try full-screen mode for
the most impact!
>
> <http://www.youtube.com/user/MattsRV8#p/u/1/2b4C8fb-XAc>http://www.youtube.com/user/MattsRV8#p/u/1/2b4C8fb-XAc
>
>Enjoy,
>
>Matt
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