Today's Message Index:
----------------------
1. 12:51 AM - Re: RV-List Digest: 1 Msgs - 10/28/08 (Martin & Chris)
2. 04:32 AM - Re: Question On Low-Pressure Brake Lines... (Dale Ensing)
3. 05:10 AM - Re: Question On Low-Pressure Brake Lines... (Charles Heathco)
4. 07:06 PM - 406 mhz vs 121.5 (Bruno)
Message 1
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Subject: | Re: RV-List Digest: 1 Msgs - 10/28/08 |
Matt,
In my experience, the reservoir feeds the master cylinder by gravity. I
don't think there is any suction from the m/c.
Cheers
Martin
>
>
>
> Dear Listers,
>
> I spent a lot of time staring at those plastic brake lines for the low pressure
> side and just didn't like a thing about them. Just imagine if one were to break
> and what a mess all the brake fluid all over the cockpit would be like.
>
> After some thought, I came up with the following system for the low pressure
feed.
> I used standard AN 1/4" fittings and aluminum tubing to bring the fluid from
> the reservoir to a tee fitting and then to bulkhead fittings that connect
> to standard Aeroquip hoses to the master calendars. Yeah, it was a little more
> weight, but the peace of mind is worth it.
>
> But here's my question. Notice that on the back side of the second bulkhead,
I
> kind of looped the tubing up and around the hole for the vent. This also positioned
> tee fitting nicely to feed the left and right sides. The top of that
> loop is maybe 4 to 5" higher than the top of the reservoir, though. Is the flow
> from the reservoir to the master cylinders suppose to be basically "gravity
> fed" or is the "pump" action from the master cylinders all that is necessary
> to keep the tube and master cylinders full?
>
> Matt Dralle
> RV-8 #82880 N844RV (res)
>
>
>
>
Message 2
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Subject: | Re: Question On Low-Pressure Brake Lines... |
Matt,
If a leak develops anywhere in the system that could draw air into the
lines, the air will migrate to the highest point in the system which is that
loop. The air would displace fluid in the loop and could allow fluid to leak
from the air vent on the top of the reservoir. May never happen but the
system should allow fluid to gravity feed from the reservoir to the
cylinders and any air bubbles to the reservoir..
Dale Ensing
----- Original Message -----
From: "Matt Dralle" <dralle@matronics.com>
Sent: Tuesday, October 28, 2008 9:48 PM
Subject: RV-List: Question On Low-Pressure Brake Lines...
>
> Dear Listers,
>
> I spent a lot of time staring at those plastic brake lines for the low
> pressure side and just didn't like a thing about them. Just imagine if
> one were to break and what a mess all the brake fluid all over the cockpit
> would be like.
>
> After some thought, I came up with the following system for the low
> pressure feed. I used standard AN 1/4" fittings and aluminum tubing to
> bring the fluid from the reservoir to a tee fitting and then to bulkhead
> fittings that connect to standard Aeroquip hoses to the master calendars.
> Yeah, it was a little more weight, but the peace of mind is worth it.
>
> But here's my question. Notice that on the back side of the second
> bulkhead, I kind of looped the tubing up and around the hole for the vent.
> This also positioned tee fitting nicely to feed the left and right sides.
> The top of that loop is maybe 4 to 5" higher than the top of the
> reservoir, though. Is the flow from the reservoir to the master cylinders
> suppose to be basically "gravity fed" or is the "pump" action from the
> master cylinders all that is necessary to keep the tube and master
> cylinders full?
>
> Matt Dralle
> RV-8 #82880 N844RV (res)
Message 3
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Subject: | Re: Question On Low-Pressure Brake Lines... |
I believe you need the reservour above the lines, but this looks like a
question for the Vans guys for sure. Also havent heard of the "plastic"
lines ever breaking. Chas
Message 4
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Subject: | 406 mhz vs 121.5 |
Hello Marty
My apologies if I mistaken you with someone else on the
list.
Your ''name'' appeared at the top of the post and that is probably where I
made a mistake
I will post a new post on the list to reflect this...
Again my apologies
Bruno
p.s: I'm glad you are considering the new 406 MHZ ''ELT'' by the way...:-)
-------------------------------------------------------------------------------------------------------------------------------------------
----- Original Message -----
From: "Emrath" <emrath@comcast.net>
Sent: Wednesday, October 29, 2008 9:49 PM
Subject: [!! SPAM] RV-List: 406 mhz vs 121.5
Dear Bruno,
I'm not sure what caused you to address me in this fashion, somehow
suggesting that I was against the 406MHZ change. I think you have me
confused with someone else on the RV list. Here's my last post to the
RV-List on this subject wherein I was asking the previous poster Kelly,
where one can obtain a $600 406MHZ ELT :
Kelly,
Can you name the company coming out with the $600 ELT, and when they expect
to have this in the marketplace? I'm needing one very soon for my almost
completed RV-6A.
This July I had an email exchange with Ameri-King's Victor Van, concerning
their development of a 406 mhz unit. He said they had a 406 model AK-451
selling for $849 ready to ship. Did anyone take notice of this product, it
was supposed to be displayed during Airventure at the Cessna Aircraft Booth
inside the Cessna Skycatcher.
Seem strange that I've not seen this yet on their web site and that Van's
had not yet added to their Catalog.
Marty
Time: 02:24:31 PM PST US
From: Bruno <rv4@videotron.ca>
Subject: RV-List: 406 mhz vs 121.5
Dear Emrath
''Only 15 years after ELTs
were mandated was satellites monitoring introduced. So you revert to the
status ELTs had before 1985. If you really believe that being rescued in
8-12 hours rather than 24 hours is going to make that big a difference,
feel free to spend the money.''
----------------------------------------
Well I'm old enough and I will spend the money regardless of
the fact that the Canadian MOT has made it compulsory as of Feb 2009.
As an ex-Air Force Search and Rescue crew for many years I've got to tell
you that 8-12 hours vs 24 hours will make a world of difference if you're
down in the bush with your family being injured or not.
The standard 121.5 ELTs are notoriously know for being subject to false
alarms ( Ask me how many times I had to get airborne in a hurry to chase
what turned out to be a false alarm) or trying to home on a beacon in the
mountains with the signal bouncing off the mountain's sides....
The 406 MHZ ELTs have 5 times the transmit power, can be co-located with GPS
and have a much better accuracy....
Gentlement, if you are able to afford an airplane, you sure as hell can
afford a much better device that will increase your chances of being rescue
by a factor too great to put a price tag on it...
If you don't care, ask your family what they think.....
Regards
Bruno Dionne
rv4@videotron.ca
C-GDBH RV-4
Marty
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