Today's Message Index:
----------------------
1. 05:13 AM - Re: Garmin GTX-327 pricing (Doug Gray)
2. 06:38 AM - Re: Garmin GTX-327 pricing (Tom & Cathy Ervin)
3. 07:01 AM - Re: Re: Paint vs decals (scott bilinski)
4. 07:13 AM - Re: MIL-PRF-83282 Brake (Hydraulic) Fluid (sportav8r@aol.com)
5. 07:30 AM - Re: MIL-PRF-83282 Brake (Hydraulic) Fluid (Bruce Gray)
6. 07:37 AM - Re: MIL-PRF-83282 Brake (Hydraulic) Fluid (Bob J)
7. 07:55 AM - Re: MIL-PRF-83282 Brake (Hydraulic) Fluid (Kelly McMullen)
8. 08:22 AM - Re: MIL-PRF-83282 Brake (Hydraulic) Fluid (Bruce Gray)
9. 08:57 AM - Re: MIL-PRF-83282 Brake (Hydraulic) Fluid (Ed Anderson)
10. 09:06 AM - Re: MIL-PRF-83282 Brake (Hydraulic) Fluid (Ed Anderson)
11. 09:17 AM - Re: MIL-PRF-83282 Brake (Hydraulic) Fluid (Mickey Coggins)
12. 09:20 AM - Re: MIL-PRF-83282 Brake (Hydraulic) Fluid (RV Builder (Michael Sausen))
13. 10:09 AM - Re: MIL-PRF-83282 Brake (Hydraulic) Fluid DOT-5? (Jim Jewell)
14. 10:20 AM - Re: MIL-PRF-83282 Brake (Hydraulic) Fluid (sportav8r@aol.com)
15. 02:44 PM - Re: Garmin GTX-327 pricing (Doug Gray)
16. 03:46 PM - Aerobatic weight calculation. No Fuel? (Stewart, Michael (ISS Atlanta))
17. 03:49 PM - Re: MIL-PRF-83282 Brake (Hydraulic) Fluid (linn walters)
18. 04:17 PM - Re: Paint vs decals (David Wentzell)
19. 05:18 PM - WX-900 Antenna (Richard Reynolds)
20. 05:45 PM - Re: MIL-PRF-83282 Brake (Hydraulic) Fluid (Bruce Gray)
21. 05:45 PM - Re: MIL-PRF-83282 Brake (Hydraulic) Fluid (Ed Anderson)
22. 05:51 PM - Re: WX-900 Antenna (Bruce Gray)
23. 06:40 PM - Fw: The night before Christmas Aviation Style (Mauri Morin)
24. 06:40 PM - Re: Aerobatic weight calculation. No Fuel? (Skylor Piper)
25. 07:01 PM - Re: Aerobatic weight calculation. No Fuel? (Kyle Boatright)
26. 07:23 PM - Re: Aerobatic weight calculation. No Fuel? (Mannan J. Thomason)
27. 08:44 PM - Re: MIL-PRF-83282 Brake (Hydraulic) Fluid (Vanremog@aol.com)
28. 09:51 PM - Re: Aerobatic weight calculation. No Fuel? (Skylor Piper)
Message 1
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| Subject: | Re: Garmin GTX-327 pricing |
--> RV-List message posted by: Doug Gray <dgra1233@bigpond.net.au>
$1550 from Vans is the cheapest I have found.
Doug
RV Builder (Michael Sausen) wrote:
> --> RV-List message posted by: "RV Builder (Michael Sausen)" <rvbuilder@sausen.net>
>
> Anyone know offhand what you can get a Garmin GTX-327 transponder for new or
used? I have a chance to pick up a used for $1100 that is yellow tagged but I
believe you can get a brand new one of about $1300.
>
> Michael Sausen
> -10 #352 Mid Fuse Bulkheads
> do not archive
>
>
>
>
>
>
>
Message 2
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| Subject: | Re: Garmin GTX-327 pricing |
--> RV-List message posted by: "Tom & Cathy Ervin" <tcervin@valkyrie.net>
Stark Avionics is always the best price available.
Tom in
Ohio
----- Original Message -----
From: "Doug Gray" <dgra1233@bigpond.net.au>
Subject: Re: RV-List: Garmin GTX-327 pricing
> --> RV-List message posted by: Doug Gray <dgra1233@bigpond.net.au>
>
> $1550 from Vans is the cheapest I have found.
> Doug
>
> RV Builder (Michael Sausen) wrote:
>> --> RV-List message posted by: "RV Builder (Michael Sausen)"
>> <rvbuilder@sausen.net>
>>
>> Anyone know offhand what you can get a Garmin GTX-327 transponder for new
>> or used? I have a chance to pick up a used for $1100 that is yellow
>> tagged but I believe you can get a brand new one of about $1300.
>>
>> Michael Sausen
>> -10 #352 Mid Fuse Bulkheads
>> do not archive
>>
>>
>>
>>
>>
>>
>>
>
>
>
Message 3
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| Subject: | Re: Paint vs decals |
--> RV-List message posted by: scott bilinski <rv8a2001@yahoo.com>
I have a "test" piece of vinyl graphic material near the tank filler and have spilled
fuel on it at least a half dozen times. Its still going strong 1.5 years
later. I was very surprised that the fuel seemed to have no effect on the adhesive.
Dave Nellis <truflite@yahoo.com> wrote:
--> RV-List message posted by: Dave Nellis
For what its worth, having been a radio control
modeler for many years, I have used this little
procedure for decals. After applying a decal or
decals (most of which there glue is dissolved by
fuel/oil), take a fine hair paint brush about 1/16"
and use a clear coat of the paint system you are
using, and paint the clear all the way around the
decal. This will seal the decal preventing a frayed
edge and shrinkage.
YMMV
Dave
--- linn walters wrote:
> --> RV-List message posted by: linn walters
>
>
> Kosta Lewis wrote:
>
> >--> RV-List message posted by: "Kosta Lewis"
>
> >
> >
> >
> >
> >>What I have found in my research is the stick-on
> ones are fine but you
> >>
> >>
> >will
> >
> >
> >>feel a sharp edge. After looking at RVs around I
> have decided that I
> >>
> >>
> >will >pay the extra to have everything painted on.
> I really don't like
> >the hard >sharp edges on vinyl decals.
> >
> >You will have a sharp edge with paint also as most
> trim is going to have
> >to be masked off unless it is hand painted, like
> the old pinstripes. The
> >edge may not be has high as vinyl but still there.
> It can actually be a
> >higher edge as the paint can "pool" along a mask
> line, especially at the
> >bottom of a stripe. And the paint edge won't be as
> visibly sharp either
> >as some paint will leak under the tape. I know of
> one builder who masked
> >off where he was painting trim when he put on the
> main color so there
> >wouldn't be an edge. That took some doing. A little
> >obsessive-compulsive, perhaps. I don't think anyone
> will notice the edge
> >of the vinyl and if they do and don't like it, have
> them go look at
> >someone else's airplane. No one has ever mentioned
> my vinyl edges. I
> >have had people get close and ask if they are
> vinyl, not being able to
> >tell the difference, even close up.
> >
> One way to 'soften' the painted edge is to pull the
> tape after a couple
> of hours. Pull the tape back over itself to get a
> clean edge. The
> paint will still flow a little ..... or you waited
> too long. :-P
>
> A lot of factory aircraft have vinyl graphics .....
> but all vinyl
> graphics will shrink over time ..... and the glue
> creates a little
> 'halo' effect .... for no extra charge!
> Linn
> do not archive
>
>
>
> Click on
> about
> provided
> www.buildersbooks.com,
> Admin.
> _->
> browse
> Subscriptions page,
> FAQ,
>
>
>
>
>
>
Scott Bilinski
RV-8a
cell 858-395-5094
Message 4
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| Subject: | Re: MIL-PRF-83282 Brake (Hydraulic) Fluid |
--> RV-List message posted by: sportav8r@aol.com
Thanks for the heads-up, Gary. Now for the newbie-type question: are the original
seals in our Van's-supplied brake systems Buna-n, Viton, or "something less"?
I'd like to switch to nonflamable fluid, but first I want to know what might need
replacing.
-Stormy
-----Original Message-----
From: Vanremog@aol.com
Subject: Re: RV-List: MIL-PRF-83282 Brake (Hydraulic) Fluid
--> RV-List message posted by: Vanremog@aol.com
Listers-
For those of you who wish to upgrade from the flammable MIL-H-5606 hydraulic
brake fluid to the more flame resistant MIL-PRF-83282, be advised that you
can buy a 1 gallon can from ACI at a price of $18.00 plus shipping. It is
compatible with all Buna-n (Nitrile) and Viton (Fluorocarbon) seals and the old
5606 fluid can be drained and the system refilled with 83282 without
extensive flushing. Minimum Flash Point for 83282 is 401 deg F vs 275 deg F
for
5606. The MIL-Spec and the QPL can be had at:
_http://assist2.daps.dla.mil/quicksearch/_
(http://assist2.daps.dla.mil/quicksearch/)
Royal Royco 782 meets the spec and can be ordered from:
_http://commerce.acilubes.com/SearchResult.aspx?CategoryID=7_
(http://commerce.acilubes.com/SearchResult.aspx?CategoryID=7)
GV (RV-6A N1GV O-360-A1A, C/S, Flying 771hrs, Silicon Valley, CA)
Message 5
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| Subject: | MIL-PRF-83282 Brake (Hydraulic) Fluid |
--> RV-List message posted by: "Bruce Gray" <Bruce@glasair.org>
Hey, they're BOTH flamable. One just needs a hotter flame to get started.
5606 has been around for decades, it's in most GA airplanes we fly. I
haven't seen a rash of brake fires. Why the concern?
Bruce
www.glasair.org
DO NOT ARCHIVE
-----Original Message-----
From: owner-rv-list-server@matronics.com
[mailto:owner-rv-list-server@matronics.com] On Behalf Of sportav8r@aol.com
Subject: Re: RV-List: MIL-PRF-83282 Brake (Hydraulic) Fluid
--> RV-List message posted by: sportav8r@aol.com
Thanks for the heads-up, Gary. Now for the newbie-type question: are the
original seals in our Van's-supplied brake systems Buna-n, Viton, or
"something less"?
I'd like to switch to nonflamable fluid, but first I want to know what might
need replacing.
-Stormy
-----Original Message-----
From: Vanremog@aol.com
Subject: Re: RV-List: MIL-PRF-83282 Brake (Hydraulic) Fluid
--> RV-List message posted by: Vanremog@aol.com
Listers-
For those of you who wish to upgrade from the flammable MIL-H-5606
hydraulic
brake fluid to the more flame resistant MIL-PRF-83282, be advised that you
can buy a 1 gallon can from ACI at a price of $18.00 plus shipping. It is
compatible with all Buna-n (Nitrile) and Viton (Fluorocarbon) seals and the
old
5606 fluid can be drained and the system refilled with 83282 without
extensive flushing. Minimum Flash Point for 83282 is 401 deg F vs 275 deg
F
for
5606. The MIL-Spec and the QPL can be had at:
_http://assist2.daps.dla.mil/quicksearch/_
(http://assist2.daps.dla.mil/quicksearch/)
Royal Royco 782 meets the spec and can be ordered from:
_http://commerce.acilubes.com/SearchResult.aspx?CategoryID=7_
(http://commerce.acilubes.com/SearchResult.aspx?CategoryID=7)
GV (RV-6A N1GV O-360-A1A, C/S, Flying 771hrs, Silicon Valley, CA)
Message 6
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| Subject: | Re: MIL-PRF-83282 Brake (Hydraulic) Fluid |
--> RV-List message posted by: Bob J <rocketbob@gmail.com>
If you go to your nearest Wal-Mart, buy a quart of Mobil 1 Synthetic
Automatic Transmission Fluid. The specs (I checked) are nearly the same as
the Aeroshell MIL-PRF-83282 non-flammable 5606 replacement, which has a
higher flash-point than does the 5606. I wonder how many brakes have caught
on fire from using 5606.
Has worked great in mine and a couple other RV's in my area for years. The
last time I checked a quart that would probably fill up the brake systems of
five RV's was $3-something.
Regards,
Bob Japundza
RV-6 flying F1 under const.
Message 7
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| Subject: | MIL-PRF-83282 Brake (Hydraulic) Fluid |
--> RV-List message posted by: "Kelly McMullen" <kellym@aviating.com>
I know of one fire with conventional brake fluid, in a Cherokee with the
hand brake, where pilot taxiied from one runway end to the other with a
wind switch, without releasing the brake, apparently set for runup.
Destroyed wheel pants and did enough damage to underside of wings to
require a panel or two replaced. In that aircraft, they were very lucky it
didn't get to the fuel tanks or lines.
KM
A&P
Do Not Archive
Bruce Gray said:
> --> RV-List message posted by: "Bruce Gray" <Bruce@glasair.org>
>
> Hey, they're BOTH flamable. One just needs a hotter flame to get started.
> 5606 has been around for decades, it's in most GA airplanes we fly. I
> haven't seen a rash of brake fires. Why the concern?
>
> Bruce
> www.glasair.org
DO NOT ARCHIVE
Message 8
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| Subject: | MIL-PRF-83282 Brake (Hydraulic) Fluid |
--> RV-List message posted by: "Bruce Gray" <Bruce@glasair.org>
OK, but if the brake disk is red hot an a line ruptures/melts, I'm sure that
the temp will exceed the flash point of that new fluid also.
Bruce
www.glasair.org
-----Original Message-----
From: owner-rv-list-server@matronics.com
[mailto:owner-rv-list-server@matronics.com] On Behalf Of Kelly McMullen
Subject: RE: RV-List: MIL-PRF-83282 Brake (Hydraulic) Fluid
--> RV-List message posted by: "Kelly McMullen" <kellym@aviating.com>
I know of one fire with conventional brake fluid, in a Cherokee with the
hand brake, where pilot taxiied from one runway end to the other with a
wind switch, without releasing the brake, apparently set for runup.
Destroyed wheel pants and did enough damage to underside of wings to
require a panel or two replaced. In that aircraft, they were very lucky it
didn't get to the fuel tanks or lines.
KM
A&P
Do Not Archive
Bruce Gray said:
> --> RV-List message posted by: "Bruce Gray" <Bruce@glasair.org>
>
> Hey, they're BOTH flamable. One just needs a hotter flame to get started.
> 5606 has been around for decades, it's in most GA airplanes we fly. I
> haven't seen a rash of brake fires. Why the concern?
>
> Bruce
> www.glasair.org
DO NOT ARCHIVE
Message 9
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| Subject: | Re: MIL-PRF-83282 Brake (Hydraulic) Fluid |
--> RV-List message posted by: "Ed Anderson" <eanderson@carolina.rr.com>
Hi Bruce,
Having experienced one of those "rare" brake fires (and they are not as rare as
you may think) in June of this year, I can personally tell you why the concern.
All it takes is for one of those aluminum brake lines to fracture and spray brake
fluid that has a flash point of approx 240F and to ignite and you will know
why the concern {:>) It does not really take a "hotter" flame, but it takes
sufficient heat energy to raise the temperature of the fluid 450F + to its
ignition point (generally a few degrees higher than the "Flash" point) before
ignition will possibly occur (you will still need an ignition source to ignite
the "fumes"). With the 5606 the fluid only has to reach around 240+F for this
state.
Fortunately thanks to a quick acting nephew with the fuel pump fire extinguisher,
the damage was limited to the wheel pant, tire, brakes(pads and seals) and
some minor scorching of the under-wing paint. But, certainly had a sinking
spell for a moment thinking of 5 years of work going up in flames
Its true, both fluids are flammable, but the 83282 has a flash point of 450F vs
240F for the 5606. The reason the new 83282 was developed was because the military
(who also used the 5606) found the fire risk too great (particularly in
their environment). While switching won't necessarily stop a brake fire, it
will certainly reduce the probability of ignition.
Been there - don't want'a go there again - have switched to SS braided brake lines
and the 83282.
The cost for just switching fluid is very nominal ($18 for a gallon or get with
friends and share the cost) and completely compatible with current seals (and
even the old 5606). Me, I would just change over when annual time rolled around
(if I hadn't already done it).
Yes, you may fly the rest of you days and not have a brake fire - but, if you do
- you'll wonder whether switching fluids would have changed things.
FWIW
Ed Anderson
RV-6A N494BW
Matthews, NC
eanderson@carolina.rr.com
> Hey, they're BOTH flamable. One just needs a hotter flame to get started.
> 5606 has been around for decades, it's in most GA airplanes we fly. I
> haven't seen a rash of brake fires. Why the concern?
>
> Bruce
> www.glasair.org
>
> DO NOT ARCHIVE
>
> -----Original Message-----
> From: owner-rv-list-server@matronics.com
> [mailto:owner-rv-list-server@matronics.com] On Behalf Of sportav8r@aol.com
> To: rv-list@matronics.com
> Subject: Re: RV-List: MIL-PRF-83282 Brake (Hydraulic) Fluid
>
>
> --> RV-List message posted by: sportav8r@aol.com
>
> Thanks for the heads-up, Gary. Now for the newbie-type question: are the
> original seals in our Van's-supplied brake systems Buna-n, Viton, or
> "something less"?
>
> I'd like to switch to nonflamable fluid, but first I want to know what might
> need replacing.
>
> -Stormy
>
> -----Original Message-----
> From: Vanremog@aol.com
> To: rv-list@matronics.com
> Subject: Re: RV-List: MIL-PRF-83282 Brake (Hydraulic) Fluid
>
>
> --> RV-List message posted by: Vanremog@aol.com
>
> Listers-
>
> For those of you who wish to upgrade from the flammable MIL-H-5606
> hydraulic
> brake fluid to the more flame resistant MIL-PRF-83282, be advised that you
> can buy a 1 gallon can from ACI at a price of $18.00 plus shipping. It is
> compatible with all Buna-n (Nitrile) and Viton (Fluorocarbon) seals and the
> old
>
> 5606 fluid can be drained and the system refilled with 83282 without
> extensive flushing. Minimum Flash Point for 83282 is 401 deg F vs 275 deg
> F
> for
> 5606. The MIL-Spec and the QPL can be had at:
>
>
> _http://assist2.daps.dla.mil/quicksearch/_
> (http://assist2.daps.dla.mil/quicksearch/)
>
>
> Royal Royco 782 meets the spec and can be ordered from:
>
> _http://commerce.acilubes.com/SearchResult.aspx?CategoryID7_
> (http://commerce.acilubes.com/SearchResult.aspx?CategoryID7)
>
>
> GV (RV-6A N1GV O-360-A1A, C/S, Flying 771hrs, Silicon Valley, CA)
>
>
Message 10
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| Subject: | Re: MIL-PRF-83282 Brake (Hydraulic) Fluid |
--> RV-List message posted by: "Ed Anderson" <eanderson@carolina.rr.com>
No necessarily, Bruce.
Two conditions have to be met. There must be sufficient heat energy to
raise the temperature of the fluid to its flash point (approx 450F for the
83232) AND you will then need an ignition source to ignite the fumes.
Certainly you can establish hypothetical scenarios to prove a case of - it
would - or would not have ignited. But, the military did not switch to the
83232 (after decades of using 5606) without some fairly extensive testing to
show the reduction in probably of a fire. Sure, a red hot brake could
probably do the job - but, what if its not quite red hot - just very hot?
what if just 260F hot?
In any case, no one is speaking of outlawing 5606 and everyone is certainly
free to do what best meets there risk profile. But, I can tell you once
experiencing a brake fire, I was strongly induced to reduce the probably of
it happing again. I even considered replacing seals to something compatible
with some of the non-flammable brake fluids - but convinced myself there was
still enough uncertainty about their long term effects on aluminum at this
point - not to go there. Besides, I believe that in a few years the 83232
will become the standard - why not?
Ed A
--> RV-List message posted by: "Bruce Gray" <Bruce@glasair.org>
>
> OK, but if the brake disk is red hot an a line ruptures/melts, I'm sure
> that
> the temp will exceed the flash point of that new fluid also.
>
> Bruce
> www.glasair.org
>
>
> -----Original Message-----
> From: owner-rv-list-server@matronics.com
> [mailto:owner-rv-list-server@matronics.com] On Behalf Of Kelly McMullen
> To: rv-list@matronics.com
> Subject: RE: RV-List: MIL-PRF-83282 Brake (Hydraulic) Fluid
>
>
> --> RV-List message posted by: "Kelly McMullen" <kellym@aviating.com>
>
> I know of one fire with conventional brake fluid, in a Cherokee with the
> hand brake, where pilot taxiied from one runway end to the other with a
> wind switch, without releasing the brake, apparently set for runup.
> Destroyed wheel pants and did enough damage to underside of wings to
> require a panel or two replaced. In that aircraft, they were very lucky it
> didn't get to the fuel tanks or lines.
> KM
> A&P
> Do Not Archive
>
> Bruce Gray said:
>> --> RV-List message posted by: "Bruce Gray" <Bruce@glasair.org>
>>
>> Hey, they're BOTH flamable. One just needs a hotter flame to get started.
>> 5606 has been around for decades, it's in most GA airplanes we fly. I
>> haven't seen a rash of brake fires. Why the concern?
>>
>> Bruce
>> www.glasair.org
>
> DO NOT ARCHIVE
>
>
>
Message 11
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| Subject: | Re: MIL-PRF-83282 Brake (Hydraulic) Fluid |
--> RV-List message posted by: Mickey Coggins <mick-matronics@rv8.ch>
The seals in the master cylinders are buna-n, according
to Matco, the manufacturer of mine (RV8). They also
recommended Mobil1 synthetic ATF over 5606. That's
what I'll be using, unless something else amazing
comes along in the next couple of weeks!
Mickey
Bruce Gray wrote:
> --> RV-List message posted by: "Bruce Gray" <Bruce@glasair.org>
>
> Hey, they're BOTH flamable. One just needs a hotter flame to get started.
> 5606 has been around for decades, it's in most GA airplanes we fly. I
> haven't seen a rash of brake fires. Why the concern?
>
> Bruce
> www.glasair.org
>
> DO NOT ARCHIVE
>
> -----Original Message-----
> From: owner-rv-list-server@matronics.com
> [mailto:owner-rv-list-server@matronics.com] On Behalf Of sportav8r@aol.com
> To: rv-list@matronics.com
> Subject: Re: RV-List: MIL-PRF-83282 Brake (Hydraulic) Fluid
>
>
> --> RV-List message posted by: sportav8r@aol.com
>
> Thanks for the heads-up, Gary. Now for the newbie-type question: are the
> original seals in our Van's-supplied brake systems Buna-n, Viton, or
> "something less"?
>
> I'd like to switch to nonflamable fluid, but first I want to know what might
> need replacing.
>
> -Stormy
>
> -----Original Message-----
> From: Vanremog@aol.com
> To: rv-list@matronics.com
> Subject: Re: RV-List: MIL-PRF-83282 Brake (Hydraulic) Fluid
>
>
> --> RV-List message posted by: Vanremog@aol.com
>
> Listers-
>
> For those of you who wish to upgrade from the flammable MIL-H-5606
> hydraulic
> brake fluid to the more flame resistant MIL-PRF-83282, be advised that you
> can buy a 1 gallon can from ACI at a price of $18.00 plus shipping. It is
> compatible with all Buna-n (Nitrile) and Viton (Fluorocarbon) seals and the
> old
>
> 5606 fluid can be drained and the system refilled with 83282 without
> extensive flushing. Minimum Flash Point for 83282 is 401 deg F vs 275 deg
> F
> for
> 5606. The MIL-Spec and the QPL can be had at:
>
>
> _http://assist2.daps.dla.mil/quicksearch/_
> (http://assist2.daps.dla.mil/quicksearch/)
>
>
> Royal Royco 782 meets the spec and can be ordered from:
>
> _http://commerce.acilubes.com/SearchResult.aspx?CategoryID=7_
> (http://commerce.acilubes.com/SearchResult.aspx?CategoryID=7)
>
>
> GV (RV-6A N1GV O-360-A1A, C/S, Flying 771hrs, Silicon Valley, CA)
>
--
Mickey Coggins
http://www.rv8.ch/
#82007 finishing
do not archive
Message 12
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| Subject: | MIL-PRF-83282 Brake (Hydraulic) Fluid |
--> RV-List message posted by: "RV Builder (Michael Sausen)" <rvbuilder@sausen.net>
Very possible, but why not decrease the risk by using something with a higher
flashpoint? I probably wouldn't go to the trouble of replacing an already full
system (even though you should every couple of years anyway) but no reason
not to use it if putting in new.
Michael Sausen
-10 #352 Mid fuse bulkheads
-----Original Message-----
From: owner-rv-list-server@matronics.com [mailto:owner-rv-list-server@matronics.com] On Behalf Of Bruce Gray
Subject: RE: RV-List: MIL-PRF-83282 Brake (Hydraulic) Fluid
--> RV-List message posted by: "Bruce Gray" <Bruce@glasair.org>
OK, but if the brake disk is red hot an a line ruptures/melts, I'm sure that the
temp will exceed the flash point of that new fluid also.
Bruce
www.glasair.org
-----Original Message-----
From: owner-rv-list-server@matronics.com
[mailto:owner-rv-list-server@matronics.com] On Behalf Of Kelly McMullen
Subject: RE: RV-List: MIL-PRF-83282 Brake (Hydraulic) Fluid
--> RV-List message posted by: "Kelly McMullen" <kellym@aviating.com>
I know of one fire with conventional brake fluid, in a Cherokee with the hand brake,
where pilot taxiied from one runway end to the other with a wind switch,
without releasing the brake, apparently set for runup.
Destroyed wheel pants and did enough damage to underside of wings to require a
panel or two replaced. In that aircraft, they were very lucky it didn't get to
the fuel tanks or lines.
KM
A&P
Do Not Archive
Bruce Gray said:
> --> RV-List message posted by: "Bruce Gray" <Bruce@glasair.org>
>
> Hey, they're BOTH flamable. One just needs a hotter flame to get started.
> 5606 has been around for decades, it's in most GA airplanes we fly. I
> haven't seen a rash of brake fires. Why the concern?
>
> Bruce
> www.glasair.org
DO NOT ARCHIVE
Message 13
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| Subject: | Re: MIL-PRF-83282 Brake (Hydraulic) Fluid DOT-5? |
--> RV-List message posted by: "Jim Jewell" <jjewell@telus.net>
While on the subject of brake fluid;
Does anybody out there have any experience with DOT-5 synthetic brake fluid?
Pros and Cons?
Jim in Kelowna
----- Original Message -----
From: "Ed Anderson" <eanderson@carolina.rr.com>
Subject: Re: RV-List: MIL-PRF-83282 Brake (Hydraulic) Fluid
> --> RV-List message posted by: "Ed Anderson" <eanderson@carolina.rr.com>
>
> Hi Bruce,
>
> Having experienced one of those "rare" brake fires (and they are not as
> rare as you may think) in June of this year, I can personally tell you why
> the concern.
>
Message 14
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|
| Subject: | Re: MIL-PRF-83282 Brake (Hydraulic) Fluid |
--> RV-List message posted by: sportav8r@aol.com
Okay, so we're good to go with Mobil 1 synthetic ATF in original-seal Matco brakes/master/slave
cylinders as supplied by Van's circa 1997, correct?
If so, I'm on my way to Wal-Mart ;-)
Might as well go for it while I'm tearing into things; I've got scheduled "winter-doldrums
RV downtime" coming up, and brake lining replacement is on the agenda
(along with cowl repair, P-mag reprogramming, altitude hold installation...
the Reddy heater, some ice-cold wrenches and I are going to be close pals for
a few miserable weeks.
-Stormy
-----Original Message-----
From: Mickey Coggins <mick-matronics@rv8.ch>
Subject: Re: RV-List: MIL-PRF-83282 Brake (Hydraulic) Fluid
--> RV-List message posted by: Mickey Coggins <mick-matronics@rv8.ch>
The seals in the master cylinders are buna-n, according
to Matco, the manufacturer of mine (RV8). They also
recommended Mobil1 synthetic ATF over 5606. That's
what I'll be using, unless something else amazing
comes along in the next couple of weeks!
Mickey
Bruce Gray wrote:
> --> RV-List message posted by: "Bruce Gray" <Bruce@glasair.org>
>
> Hey, they're BOTH flamable. One just needs a hotter flame to get started.
> 5606 has been around for decades, it's in most GA airplanes we fly. I
> haven't seen a rash of brake fires. Why the concern?
>
> Bruce
> www.glasair.org
>
> DO NOT ARCHIVE
>
> -----Original Message-----
> From: owner-rv-list-server@matronics.com
> [mailto:owner-rv-list-server@matronics.com] On Behalf Of sportav8r@aol.com
> To: rv-list@matronics.com
> Subject: Re: RV-List: MIL-PRF-83282 Brake (Hydraulic) Fluid
>
>
> --> RV-List message posted by: sportav8r@aol.com
>
> Thanks for the heads-up, Gary. Now for the newbie-type question: are the
> original seals in our Van's-supplied brake systems Buna-n, Viton, or
> "something less"?
>
> I'd like to switch to nonflamable fluid, but first I want to know what might
> need replacing.
>
> -Stormy
>
> -----Original Message-----
> From: Vanremog@aol.com
> To: rv-list@matronics.com
> Subject: Re: RV-List: MIL-PRF-83282 Brake (Hydraulic) Fluid
>
>
> --> RV-List message posted by: Vanremog@aol.com
>
> Listers-
>
> For those of you who wish to upgrade from the flammable MIL-H-5606
> hydraulic
> brake fluid to the more flame resistant MIL-PRF-83282, be advised that you
> can buy a 1 gallon can from ACI at a price of $18.00 plus shipping. It is
> compatible with all Buna-n (Nitrile) and Viton (Fluorocarbon) seals and the
> old
>
> 5606 fluid can be drained and the system refilled with 83282 without
> extensive flushing. Minimum Flash Point for 83282 is 401 deg F vs 275 deg
> F
> for
> 5606. The MIL-Spec and the QPL can be had at:
>
>
> _http://assist2.daps.dla.mil/quicksearch/_
> (http://assist2.daps.dla.mil/quicksearch/)
>
>
> Royal Royco 782 meets the spec and can be ordered from:
>
> _http://commerce.acilubes.com/SearchResult.aspx?CategoryID=7_
> (http://commerce.acilubes.com/SearchResult.aspx?CategoryID=7)
>
>
> GV (RV-6A N1GV O-360-A1A, C/S, Flying 771hrs, Silicon Valley, CA)
>
--
Mickey Coggins
http://www.rv8.ch/
#82007 finishing
do not archive
Message 15
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|
| Subject: | Re: Garmin GTX-327 pricing |
--> RV-List message posted by: Doug Gray <dgra1233@bigpond.net.au>
From Stark: Gtx-327 $1420 + $70 pre-wire. Add $17 shipping.
I'm not sure if the pre-wire is optional.
Tom & Cathy Ervin wrote:
> --> RV-List message posted by: "Tom & Cathy Ervin" <tcervin@valkyrie.net>
>
> Stark Avionics is always the best price available.
> Tom in
> Ohio
> ----- Original Message -----
> From: "Doug Gray" <dgra1233@bigpond.net.au>
> To: <rv-list@matronics.com>
> Subject: Re: RV-List: Garmin GTX-327 pricing
>
>
>
>>--> RV-List message posted by: Doug Gray <dgra1233@bigpond.net.au>
>>
>>$1550 from Vans is the cheapest I have found.
>>Doug
>>
>>RV Builder (Michael Sausen) wrote:
>>
>>>--> RV-List message posted by: "RV Builder (Michael Sausen)"
>>><rvbuilder@sausen.net>
>>>
>>>Anyone know offhand what you can get a Garmin GTX-327 transponder for new
>>>or used? I have a chance to pick up a used for $1100 that is yellow
>>>tagged but I believe you can get a brand new one of about $1300.
>>>
>>>Michael Sausen
>>>-10 #352 Mid Fuse Bulkheads
>>>do not archive
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>
>>
>>
>
>
>
>
>
>
>
Message 16
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| Subject: | Aerobatic weight calculation. No Fuel? |
--> RV-List message posted by: "Stewart, Michael (ISS Atlanta)" <mstewart@iss.net>
I stole this post, from Randy Lervold, and thought it was worth putting
here. Im dumbfounded by this piece of information. Thought you all might
like to read it.
=======
http://www.vansairforce.com/community/showthread.php?t=4595
There has been some confusion about Aerobatic gross weight on the RV-3
ever since the new B wings were introduced in 1998. I spoke with Van
himself twice this week on this issue, he in turn discussed with his
staff internally, and have now clarified it. Aerobatic gross weight for
the RV-3 (all models, all wings) is 1,050 lbs. (no confusion on this).
This figure however does NOT include fuel in WING tanks which is what
was not clear. Note that any fuel in a fuselage tank WOULD be included
in the Aerobatic gross.
Interestingly, he confirmed that this method applies to any RV model. As
an RV-8 builder/pilot I interpreted Van's W&B instructions to mean that
fuel WAS included in Aerobatic Category gross weight calculations as
well as Utility/Normal Category gross weight operation. In fact that is
erroneous -- as long as the fuel is in wing tanks it may be excluded
from the Aerobatic calculation and limit. Of course Van's points out
that weight has other deleterious effects on aerobatic handling and
encourages pilots to use good judgement when loading their aircraft for
aerobatics.
I have updated the summary of all RV-3 weight & balance data and issues
on my web site...
http://www.romeolima.com/RV3works
Informationally,
__________________
Randy Lervold
RV-3B, finish kit, www.rv-3.com
RV-8, 368 hrs, sold, www.rv-8.com
www.eaa105.org
=======
Mike Stewart
Message 17
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|
| Subject: | Re: MIL-PRF-83282 Brake (Hydraulic) Fluid |
--> RV-List message posted by: linn walters <lwalters2@cfl.rr.com>
Bruce Gray wrote:
>--> RV-List message posted by: "Bruce Gray" <Bruce@glasair.org>
>
>Hey, they're BOTH flamable. One just needs a hotter flame to get started.
>5606 has been around for decades, it's in most GA airplanes we fly. I
>haven't seen a rash of brake fires. Why the concern?
>
>Bruce
>www.glasair.org
>
Because you haven't been looking!!! Ever since folks started using the
plastic brake lines, there have been fires .... some that totaled the
airplane. I know of a Defiant, Long EZ, glasair, and am sure there are
others. The problem is more prevalent in plastic airplanes (OK, FG)
with glass gear legs. The problem starts with long taxi requirements
and a crosswind .... where you're riding one brake and carrying some
extra power ..... the heat keeps rising and when the plastic rake line
finally gets hot enough to rupture, the brake assembly is hot enough to
cause combustion. Problem is, most pilots aren't aware that they have a
problem because they can't see the brake area from the cockpit. I guess
after the brake failure, they keep trying to get wherever they're headed
as the fire gets bigger. Just a guess.
Linn
do not archive
--
Message 18
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|
| Subject: | Re: Paint vs decals |
--> RV-List message posted by: "David Wentzell" <DWentzell@wi.rr.com>
Just this week I applied a vinyl decal (which we screen printed on 3M
Premium grade vinyl) with their corporate logo to a Citation Jet (based on
our local field) that the company recently had repainted. On the original
new paint they also used a screen printed vinyl decal which they had in
place for 6 years. The jet flies daily all over the country, which equates
to quite a harsh environment on the exterior surfaces. Obviously,
significantly higher & faster than our birds! Vinyl was used by Cessna on
the new jet, the corporation decided to use vinyl again on the repainted
jet, because . . . it works!
Out of curiousity, I had to ask: "So, what is the price tag for a paint
job on an airplane like this?" - $50,000 was the reply!
David Wentzell
Racine, Wisconsin
RV6 233DW (45 hours & lovin it!)
Yup, used vinyl on mine, some screen printed, some computer
cut. I'm happy with the results and it gets a lot of compliments! I figure
as long as I'm careful to keep my speeds (and altitudes) below the Citation
Jets it ought to last an adequately long time!
Message 19
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|
AeroElectric AeroElectric <aeroelectric-list@matronics.com>
INNOCENT GLOBAL 0.4981 1.0000 0.0000
--> RV-List message posted by: Richard Reynolds <rvreynolds@macs.net>
My WX-900 antenna is not repairable. It failed after approximately
170 tach hours.
L-3 Communications Avionics Systems has not retuned it per my request
of Nov 9, 2005.
Question:
Has any one had good service experience with the WX-900 antenna?
Has any one had good service experience with L-3 Communications
Avionics Systems?
Richard Reynolds
Norfolk, VA
RV-6A
Message 20
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|
| Subject: | MIL-PRF-83282 Brake (Hydraulic) Fluid |
--> RV-List message posted by: "Bruce Gray" <Bruce@glasair.org>
Sounds like a brake line issue not a fluid issue.
Bruce
SS brake lines.
www.glasair.org
-----Original Message-----
From: owner-rv-list-server@matronics.com
[mailto:owner-rv-list-server@matronics.com] On Behalf Of linn walters
Subject: Re: RV-List: MIL-PRF-83282 Brake (Hydraulic) Fluid
--> RV-List message posted by: linn walters <lwalters2@cfl.rr.com>
Bruce Gray wrote:
>--> RV-List message posted by: "Bruce Gray" <Bruce@glasair.org>
>
>Hey, they're BOTH flamable. One just needs a hotter flame to get started.
>5606 has been around for decades, it's in most GA airplanes we fly. I
>haven't seen a rash of brake fires. Why the concern?
>
>Bruce
>www.glasair.org
>
Because you haven't been looking!!! Ever since folks started using the
plastic brake lines, there have been fires .... some that totaled the
airplane. I know of a Defiant, Long EZ, glasair, and am sure there are
others. The problem is more prevalent in plastic airplanes (OK, FG)
with glass gear legs. The problem starts with long taxi requirements
and a crosswind .... where you're riding one brake and carrying some
extra power ..... the heat keeps rising and when the plastic rake line
finally gets hot enough to rupture, the brake assembly is hot enough to
cause combustion. Problem is, most pilots aren't aware that they have a
problem because they can't see the brake area from the cockpit. I guess
after the brake failure, they keep trying to get wherever they're headed
as the fire gets bigger. Just a guess.
Linn
do not archive
--
Message 21
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|
| Subject: | Re: MIL-PRF-83282 Brake (Hydraulic) Fluid |
--> RV-List message posted by: "Ed Anderson" <eanderson@carolina.rr.com>
There was also a recent article (either in Sport Aviation or KitPlane)
about a gent who flew his RV-8 around the world (this year). He had a brake
fire in Thailand, fortunately did not seriously damage his plane.
Ed Anderson
----- Original Message -----
From: "linn walters" <lwalters2@cfl.rr.com>
Subject: Re: RV-List: MIL-PRF-83282 Brake (Hydraulic) Fluid
> --> RV-List message posted by: linn walters <lwalters2@cfl.rr.com>
>
> Bruce Gray wrote:
>
>>--> RV-List message posted by: "Bruce Gray" <Bruce@glasair.org>
>>
>>Hey, they're BOTH flamable. One just needs a hotter flame to get started.
>>5606 has been around for decades, it's in most GA airplanes we fly. I
>>haven't seen a rash of brake fires. Why the concern?
>>
>>Bruce
>>www.glasair.org
>>
> Because you haven't been looking!!! Ever since folks started using the
> plastic brake lines, there have been fires .... some that totaled the
> airplane. I know of a Defiant, Long EZ, glasair, and am sure there are
> others. The problem is more prevalent in plastic airplanes (OK, FG)
> with glass gear legs. The problem starts with long taxi requirements
> and a crosswind .... where you're riding one brake and carrying some
> extra power ..... the heat keeps rising and when the plastic rake line
> finally gets hot enough to rupture, the brake assembly is hot enough to
> cause combustion. Problem is, most pilots aren't aware that they have a
> problem because they can't see the brake area from the cockpit. I guess
> after the brake failure, they keep trying to get wherever they're headed
> as the fire gets bigger. Just a guess.
> Linn
> do not archive
>
>
> --
>
>
>
Message 22
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|
--> RV-List message posted by: "Bruce Gray" <Bruce@glasair.org>
Send them a bill for your confiscated antenna. 75 percent of the cost of a
new one sounds fair.
Bruce
www.glasair.org
-----Original Message-----
From: owner-rv-list-server@matronics.com
[mailto:owner-rv-list-server@matronics.com] On Behalf Of Richard Reynolds
Subject: RV-List: WX-900 Antenna
--> RV-List message posted by: Richard Reynolds <rvreynolds@macs.net>
My WX-900 antenna is not repairable. It failed after approximately
170 tach hours.
L-3 Communications Avionics Systems has not retuned it per my request
of Nov 9, 2005.
Message 23
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|
"Ed Ethridge" <nshore@cyberport.net>, "Joe Roberts" <joerob7@msn.com>,
"Geanette Cebulski" <mpasecretary@blackfoot.net>
| Subject: | Fw: The night before Christmas Aviation Style |
--> RV-List message posted by: "Mauri Morin" <maurv8@bresnan.net>
Thank you, Cathy Jensen. Hope you don't mind that I share this with all our flying
friends.
And to all a very Merry Christmas and Happy New Year.
Mauri.
The Night Before Christmas - Aviation Style
'Twas the night before Christmas, and out on the ramp,
Not an airplane was stirring, not even a Champ.
The aircraft were fastened to tie downs with care,
In hopes that -- come morning -- they all would be there.
The fuel trucks were nestled, all snug in their spots,
With gusts from two-forty at 39 knots.
I slumped at the fuel desk, now finally caught up,
And settled down comfortably, resting my butt.
When the radio lit up with noise and with chatter,
I turned up the scanner to see what was the matter.
A voice clearly heard over static and snow,
Called for clearance to land at the airport below.
He barked his transmission so lively and quick,
I'd have sworn that the call sign he used was "St. Nick."
I ran to the panel to turn up the lights,
The better to welcome this magical flight.
He called his position, no room for denial,
"St. Nicholas One, turnin' left onto final."
And what to my wondering eyes should appear,
But a Rutan-built sleigh, with eight Rotax Reindeer!
With vectors to final, down the glideslope he came,
As he passed all fixes, he called them by name:
"Now Ringo! Now Tolga! Now Trini and Bacun!
On Comet! On Cupid!" What pills was he takin'?
While controllers were sittin', and scratchin' their heads,
They phoned to my office, and I heard it with dread,
The message they left was both urgent and dour:
"When Santa pulls in, have him please call the tower."
He landed like silk, with the sled runners sparking,
Then I heard, "Left at Charlie," and "Taxi to parking."
He slowed to a taxi, turned off of three-oh,
And stopped on the ramp with a "Ho, ho-ho-ho..."
He stepped out of the sleigh, but before he could talk,
I ran out to meet him with my best set of chocks.
His red helmet and goggles were covered with frost,
And his beard was all blackened from Reindeer exhaust.
His breath smelled like peppermint, gone slightly stale,
And he puffed on a pipe, but he didn't inhale.
His cheeks were all rosy and jiggled like jelly,
His boots were as black as a cropduster's belly.
He was chubby and plump, in his suit of bright red,
And he asked me to "fill it, with hundred low-lead."
He came dashing in from the snow-covered pump,
I knew he was anxious for drainin' the sump.
I spoke not a word, but went straight to my work,
And I filled up the sleigh, but I spilled like a jerk.
He came out of the restroom, and sighed in relief,
Then he picked up a phone for a Flight Service brief.
And I thought as he silently scribed in his log,
These reindeer could land in an eighth-mile fog.
He completed his pre-flight, from the front to the rear,
Then he put on his headset, and I heard him yell, "Clear!"
And laying a finger on his push-to-talk,
He called up the tower for clearance and squawk.
"Take taxiway Charlie, the southbound direction,
Turn right three-two-zero at pilot's discretion"
He sped down the runway, the best of the best,
"Your traffic's a Grumman, inbound from the west."
Then I heard him proclaim, as he climbed thru the night,
"Merry Christmas to all! I have traffic in sight."
Message 24
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|
| Subject: | Re: Aerobatic weight calculation. No Fuel? |
--> RV-List message posted by: Skylor Piper <skylor4@yahoo.com>
Very interesting information! I'm guessing that Van's
aerobatic gross weight limitations are based on spar
load calculations and the spar root & possibly carry
through structure load calculations. Weight carried
in the wings would not affect the loading of the spar
root and the carry through structure...in fact, weight
in the wings should offset some of the bending loads
due to wing lift.
This is great news, if it's true!
Skylor
RV-8 QB
Under Construction.
--- "Stewart, Michael (ISS Atlanta)"
<mstewart@iss.net> wrote:
> --> RV-List message posted by: "Stewart, Michael
> (ISS Atlanta)" <mstewart@iss.net>
>
> I stole this post, from Randy Lervold, and thought
> it was worth putting
> here. Im dumbfounded by this piece of information.
> Thought you all might
> like to read it.
> =======
>
http://www.vansairforce.com/community/showthread.php?t=4595
>
> There has been some confusion about Aerobatic gross
> weight on the RV-3
> ever since the new B wings were introduced in 1998.
> I spoke with Van
> himself twice this week on this issue, he in turn
> discussed with his
> staff internally, and have now clarified it.
> Aerobatic gross weight for
> the RV-3 (all models, all wings) is 1,050 lbs. (no
> confusion on this).
> This figure however does NOT include fuel in WING
> tanks which is what
> was not clear. Note that any fuel in a fuselage tank
> WOULD be included
> in the Aerobatic gross.
>
> Interestingly, he confirmed that this method applies
> to any RV model. As
> an RV-8 builder/pilot I interpreted Van's W&B
> instructions to mean that
> fuel WAS included in Aerobatic Category gross weight
> calculations as
> well as Utility/Normal Category gross weight
> operation. In fact that is
> erroneous -- as long as the fuel is in wing tanks it
> may be excluded
> from the Aerobatic calculation and limit. Of course
> Van's points out
> that weight has other deleterious effects on
> aerobatic handling and
> encourages pilots to use good judgement when loading
> their aircraft for
> aerobatics.
>
>
> I have updated the summary of all RV-3 weight &
> balance data and issues
> on my web site...
> http://www.romeolima.com/RV3works
> Informationally,
>
> __________________
> Randy Lervold
> RV-3B, finish kit, www.rv-3.com
> RV-8, 368 hrs, sold, www.rv-8.com
> www.eaa105.org
> =======
>
> Mike Stewart
>
>
>
> browse
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Message 25
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| Subject: | Re: Aerobatic weight calculation. No Fuel? |
--> RV-List message posted by: "Kyle Boatright" <kboatright1@comcast.net>
The interesting thing here is that Van's has published (Via the RVator) that
the weak point for the RV-4 and RV-6 wing is just outboard of the fuel tank.
I believe the same thing holds true for the RV-7 and RV-8 (isn't that where
the factory RV-8's wing failed?). Fuel in the wing tanks does result in
higher bending moments in the portion of the wing outboard of the tank, so
I'd have assumed that fuel should be considered when calculating aerobatic
weight.
I'm confused.
KB
Message 26
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| Subject: | Re: Aerobatic weight calculation. No Fuel? |
--> RV-List message posted by: "Mannan J. Thomason" <mannanj@alltel.net>
Just a guess, but if I were the designer, I don't think I would publish this
in too wide-spread fashion either. That + - 200lb fudge factor might keep
ham-fisted knuckleheads like myself from busting their a--. Might just
prevent a few lawsuits too!
Mannan Thomason
----- Original Message -----
From: "Skylor Piper" <skylor4@yahoo.com>
Subject: Re: RV-List: Aerobatic weight calculation. No Fuel?
> --> RV-List message posted by: Skylor Piper <skylor4@yahoo.com>
>
> Very interesting information! I'm guessing that Van's
> aerobatic gross weight limitations are based on spar
> load calculations and the spar root & possibly carry
> through structure load calculations. Weight carried
> in the wings would not affect the loading of the spar
> root and the carry through structure...in fact, weight
> in the wings should offset some of the bending loads
> due to wing lift.
>
> This is great news, if it's true!
>
> Skylor
> RV-8 QB
> Under Construction.
>
> --- "Stewart, Michael (ISS Atlanta)"
> <mstewart@iss.net> wrote:
>
>> --> RV-List message posted by: "Stewart, Michael
>> (ISS Atlanta)" <mstewart@iss.net>
>>
>> I stole this post, from Randy Lervold, and thought
>> it was worth putting
>> here. Im dumbfounded by this piece of information.
>> Thought you all might
>> like to read it.
>> =======
>>
> http://www.vansairforce.com/community/showthread.php?t=4595
>>
>> There has been some confusion about Aerobatic gross
>> weight on the RV-3
>> ever since the new B wings were introduced in 1998.
>> I spoke with Van
>> himself twice this week on this issue, he in turn
>> discussed with his
>> staff internally, and have now clarified it.
>> Aerobatic gross weight for
>> the RV-3 (all models, all wings) is 1,050 lbs. (no
>> confusion on this).
>> This figure however does NOT include fuel in WING
>> tanks which is what
>> was not clear. Note that any fuel in a fuselage tank
>> WOULD be included
>> in the Aerobatic gross.
>>
>> Interestingly, he confirmed that this method applies
>> to any RV model. As
>> an RV-8 builder/pilot I interpreted Van's W&B
>> instructions to mean that
>> fuel WAS included in Aerobatic Category gross weight
>> calculations as
>> well as Utility/Normal Category gross weight
>> operation. In fact that is
>> erroneous -- as long as the fuel is in wing tanks it
>> may be excluded
>> from the Aerobatic calculation and limit. Of course
>> Van's points out
>> that weight has other deleterious effects on
>> aerobatic handling and
>> encourages pilots to use good judgement when loading
>> their aircraft for
>> aerobatics.
>>
>>
Message 27
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| Subject: | Re: MIL-PRF-83282 Brake (Hydraulic) Fluid |
--> RV-List message posted by: Vanremog@aol.com
In a message dated 12/16/2005 7:16:04 A.M. Pacific Standard Time,
sportav8r@aol.com writes:
Thanks for the heads-up, Gary. Now for the newbie-type question: are the
original seals in our Van's-supplied brake systems Buna-n, Viton, or
"something less"?
===================================
The Clevelands are stock with Buna-n (Nitrile) seals.
As has already been said, the MIL-PRF-83282 fluid is available, higher temp
and fully compatible with systems/seals designed for MIL-H-5606 fluid. Read
the MIL-Spec and the history of the development of the newer fluid with the
Military. This is a no-brainer folks.
GV (RV-6A N1GV O-360-A1A, C/S, Flying 771hrs, Silicon Valley, CA)
Message 28
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| Subject: | Re: Aerobatic weight calculation. No Fuel? |
--> RV-List message posted by: Skylor Piper <skylor4@yahoo.com>
That's absolutely true! However, one would assume that
Van's load calculations are based on both full and
empty fuel tank cases to cover the full range of
loading possibilities...if that's the case, aerobatic
gross + full fuel tanks should not necessarily have
too much impact on the mid span spar loads.
I seem to recall that some speculation of N58RV's
failure centered around the possibility of over G AND
roll input. My memory is suspect, though.
Skylor
--- Kyle Boatright <kboatright1@comcast.net> wrote:
> --> RV-List message posted by: "Kyle Boatright"
> <kboatright1@comcast.net>
>
> The interesting thing here is that Van's has
> published (Via the RVator) that
> the weak point for the RV-4 and RV-6 wing is just
> outboard of the fuel tank.
> I believe the same thing holds true for the RV-7 and
> RV-8 (isn't that where
> the factory RV-8's wing failed?). Fuel in the wing
> tanks does result in
> higher bending moments in the portion of the wing
> outboard of the tank, so
> I'd have assumed that fuel should be considered when
> calculating aerobatic
> weight.
>
> I'm confused.
>
> KB
>
>
>
> browse
> Subscriptions page,
> FAQ,
>
> Admin.
>
>
>
>
>
>
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