Today's Message Index:
----------------------
1. 04:24 AM - Re: Please, oh PLEASE trim your messages (Bluecavu@aol.com)
2. 05:18 AM - Re: Please, oh PLEASE trim your messages (Chuck Jensen)
3. 05:20 AM - Re: Slow build switch to QB (Dwight Frye)
4. 05:51 AM - Re: Auto Pilot choices (Charles Rowbotham)
5. 06:18 AM - Re: Battery Box (Gary Zilik)
6. 06:29 AM - Re: Aircraft Insurance: USAA (JT Helms)
7. 07:19 AM - Re: Wheel pant brackets cracking? (SportAV8R@aol.com)
8. 07:22 AM - Tail Wheel wear (Wheeler North)
9. 07:40 AM - Trio (Wheeler North)
10. 07:45 AM - Re: Wheel pant brackets cracking? (Bill VonDane)
11. 09:27 AM - -8 rear weldment dimensions... (Bill VonDane)
12. 12:22 PM - Re: Wheel pant brackets cracking? (Hopperdhh@aol.com)
13. 12:47 PM - Re: Wheel pant brackets cracking? (SportAV8R@aol.com)
14. 02:30 PM - Re: Wheel pant brackets cracking? (Stein Bruch)
15. 02:58 PM - Re: Oil Cooler Location ()
16. 03:40 PM - Re: Oil Cooler Location (Dan Checkoway)
17. 04:30 PM - Re: Wheel pant brackets cracking? (Tom & Cathy Ervin)
18. 04:47 PM - Re: Wheel pant brackets cracking? (Hopperdhh@aol.com)
19. 08:01 PM - Re: Wheel pant brackets cracking? (Stein Bruch)
Message 1
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| Subject: | Re: Please, oh PLEASE trim your messages |
--> RV-List message posted by: Bluecavu@aol.com
>
> >> Forcing??? Seems like he was asking people to just follow the usage
>> guidelines. And if Matt is running the list, where is the Democracy?
>> Have
>> we had a vote I missed?
>>
>> do not archive
>>
>
I've always wondered whether or not some of these long paste-it posters have
actually read the usage guidelines... like where Matt says: Please do not
quote the entire post when replying to a post if at all possible.
I just don't think so.
Message 2
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| Subject: | Please, oh PLEASE trim your messages |
--> RV-List message posted by: Chuck Jensen <cjensen@dts9000.com>
Bert,
True, it is a democracy--at least we try out best, but a democracy does not
exempt us from being curteous, thoughtful and cooperative of simple rules
that benefit all. Snipping, clipping and Do Not Archive seems to fall into
this favorable puralistic behavior that Andrew was encouraging.
Chuck
-----Original Message-----
From: owner-rv-list-server@matronics.com
[mailto:owner-rv-list-server@matronics.com]On Behalf Of
bertrv6@highstream.net
Subject: Re: RV-List: Please, oh PLEASE trim your messages
--> RV-List message posted by: bertrv6@highstream.net
Quoting Andrew Douglas <adouglas@optonline.net>:
> --> RV-List message posted by: Andrew Douglas <adouglas@optonline.net>
>
> <rant>
> Okay, I know that "list police" messages are totally OT and can be
annoying,
> but what I got this morning is just ridiculous. Message 1 in last night's
> digest was SO LONG from not being trimmed that I just had to find out how
> bad it was. I copied and pasted that one message into Word and came up
with
> the following:
>
> Pages: 16 (!) Note: this is at 12-point type
> Words: 2,534
> Characters (no spaces): 11,396
> Characters (with spaces): 14,590
>
> SIXTEEN PAGES of text for ONE email?
>
> Here's the kicker: The actual message sitting on top of all of this
quoted,
> re-quoted and re-re-quoted text was....
>
> 72 words long.
>
> And did not have a "do not archive" in it.
>
> With all due respect, this is way over the top. Please edit your replies.
> </rant>
>
> We now return you to your RV discussion, which is already in progress.
>
> PS: If you choose to reply to this, please DON'T QUOTE IT and DON'T
ARCHIVE
> IT.
>
> Andrew Douglas
> Do not archive
>
> Andrew: all you have to do is go to the next as I do. You do not have
to
read anythinbg you do not like right?
This is a democracy, let's keep it that way.
People waste so much time, forcing their opinion on some one else,
they could use their time in a much productive way.
Bert
DO NOT ARCHIVE
>
>
Message 3
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| Subject: | Re: Slow build switch to QB |
--> RV-List message posted by: Dwight Frye <dwight@openweave.org>
Scott,
I did exactly the same thing (though, not because of a move) and what I was
told to send back was all the stuff for the center section which came wrapped
in a plastic bundle. If you kept your center section wrapped as shipped, you
are in good shape. Still, I'd get Van's on the phone and make sure that is
what they still want as I ordered mine well over a year ago and the drill may
have changed.
-- Dwight
do not archive
On Mon Dec 13 22:49:36 2004, tx_jayhawk@excite.com wrote :
>
>--> RV-List message posted by: "" <tx_jayhawk@excite.com>
>
>
>All,
>
>I could not get ahold of Vans today (kept getting that damn voicemail), but I
thought others might be able to help.
>
>Due to a job change and move from Austin to Kansas City, I have no clear picture
on when I will again have a garage/workspace to resume building. Wings are
completely done, and fuselage is scheduled to be delivered 12/27. I have now
decided that I may "cheat" and go ahead and order the QB fuse (since I likely
won't be building for 6 months anyway). I know I need to send the center section
back...can anyone tell me exactly which parts need to go back and how best
to send them? I know the two gold center pieces...what about the smaller anodized
tabs or fuselage angle?
>
>Thanks,
>Scott
>www.scottsrv7a.com
>
>
>Join Excite! - http://www.excite.com
>The most personalized portal on the Web!
>
>
Message 4
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| Subject: | Auto Pilot choices |
--> RV-List message posted by: "Charles Rowbotham" <crowbotham@hotmail.com>
Charlie,
We started out with the TruTrak wing leveler and then added the Alt hold.
Been very happy with the units, from both performance and support
prespectives, for over 150 hrs.
Chuck & Dave Rowbotham
RV-8A
>From: "Charles Heathco" <cheathco@comcast.net>
>Reply-To: rv-list@matronics.com
>To: <rv-list@matronics.com>
>Subject: RV-List: Auto Pilot choices
Message 5
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--> RV-List message posted by: Gary Zilik <zilik@excelgeo.com>
Buy the PC680MJ and your halfway there. The MJ stands for Metal Jacket
and this jacket is what Van's uses for the battery box. The PC680MJ
battery is supplied with the metal jacket and is glued into the box with
RTV and can be removed easily using a chip chaser to to cut battery
loose. A couple of added pieces of angle and you have a battery box
ready to mount on the firewall.
Or take a look at this http://www.odysseybatteries.com/pc680hd.htm
Gary
Pete Howell wrote:
> --> RV-List message posted by: "Pete Howell" <pete.howell@gecko-group.com>
>
> Has anyone designed a home brew battery box for the PC680 or similar sized
> batteries for the -9A or -7A that they would be willing to share? I thought
> I would look into it before I went with Van's kit.
>
> Thanks,
>
> Pete
>
>
>
>
>
>
>
Message 6
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| Subject: | Re: Aircraft Insurance: USAA |
--> RV-List message posted by: "JT Helms" <jhelms@nationair.com>
USAIG has not been competitive on homebuilts in the past. With all the
changes (Phoenix pulling back) leaving us with fewer competitors, apparently
USAIG's formerly non-competitive prices are now competitive. I never would
have thought that they'd compete on coverages like that for homebuilts.
It's never been a forte of theirs. That's great. I've got a query in to my
USAIG underwriter to get the low-down on what types of things they
will/won't do. (i.e. some companies want to only write builders risk
coverage if the person building it has the experience they're looking for to
cover it when flying.)
As for the ballpark you got for AIG coverage, that is pretty easy for them
to say now. I gave realistic figures for what I've seen for coverage for
the type of pilot I was queried about from my experience with over 1200 RVs
insured. I did not include an AOPA discount in any of my previous
indications as not all are members. That would be a nice surprise for those
who are. AIG does a 5% discount for AOPA members on any type of plane.
JT
----- Original Message -----
From: "lucky" <luckymacy@comcast.net>
Subject: Re: RV-List: Aircraft Insurance: USAA
> --> RV-List message posted by: luckymacy@comcast.net (lucky)
>
> I called and talked to Shannon today at USAA.
>
> I got $50K builders insurance which includes anything up to starting the
engine. I'll haggle that or change it when the time comes but it does
include the move as long as I move it and not professionals, strangely
enough, and at the airport while hangaring it. I am paying $500. I think
$60K was $541. Liability was like another $250. Didn't seem worth it so I
didn't get it though it might be required when moved to the airport per
airport rules..
>
> There's a $200 deductable and it's through USAIG (NOT AIG).
>
> Then I threw out a hypothetical worst case number for full flight RV 8
tailwheel coverage thinking it can only get better from here: I forgot my
notes at work but I think that asked if I had 200 hours overall, 40 hours
tailwheel, and 5 hours dual in an RV with a CFI what would it would cost.
About $2000 through AIG (not USAIG) with the 5% AOPA discount was the
answer. That was for $1M each person liability, $70K to $80K Hull, and some
other stuff I can't remember. But it's better than the $2700 or whatever
figure I thought I read on this list.
>
> Lucky
> -------------- Original message --------------
>
> > --> RV-List message posted by: "JT Helms"
> >
> > USAA is a broker just like NationAir, Falcon, and anyone else whom you'd
> > talk to about aviation insurance (except AVEMCO the direct writer).
> >
> > JT (former Army officer and USAA member)
> > ----- Original Message -----
> > From: "lucky"
> > To: "RV-List" ; "RV yahoo"
> >
> > Subject: RV-List: Aircraft Insurance: USAA
> >
> >
> > > --> RV-List message posted by: luckymacy@comcast.net (lucky)
> > >
> > > Just an FYI for USAA insurance members (ie, qualified current &
> > ex-military members). I was on their web site this morning and saw they
do
> > provide Aviation service. Their minute blurb is copied below. They
probably
> > don't do the underwriting but it's at least worth looking into if you
> > haven't already. If their airplane insurance is anything like their car
> > insurance it probably can't be beat now that Phoenix is out. Since just
> > about every military officer is a usaa member, they surely have dealt
with a
> > LOT of pilots and pilot questions/demands. I'll call Monday myself and
let
> > you know what I find out.
> > >
> > > If anyone's already insured by them on the list, would you mind
sharing
> > what you know?
> > > Thanks,
> > > Lucky
> > >
> > > USA Toll-Free 1-800-343-1547
> > > Monday - Friday, 7:30 a.m. - 6 p.m. CT
> > >
> > >
> > > Aviation Insurance
> > >
> > >
> > > The Sky's the Limit
> > > >From coverages for hull damage and liability to medical payments, the
> > USAA General Agency can provide competitive quotes, personalized
attention,
> > and a highly trained staff of professionals. We understand your needs as
a
> > pilot. Contact Us.
> > >
> > > Before purchasing aviation insurance, it is important to look at some
of
> > the contract coverages that are not always so obvious. Besides comparing
> > hull and liability coverage and premium, these are some questions to ask
> > when you shop for coverage:
> > > Can other pilots fly my aircraft? If so, what are the requirements?
> > > How much expense reimbursement will the policy allow for other pilots
> > flying the aircraft?
> > > Does the policy provide coverage for the use of a non-owned aircraft?
> > > Does this company provide legal representation if I'm sued?
> > > What rating has A.M. Best assigned to this insurance company?
> > > Is there premises liability coverage for the hangar or tie-down space?
> > >
> > > Just an FYI for USAA insurance members (ie, qualified current
ex-military
> > members). I was on their web site this morning and saw they do
> > provideAviation service. Their minute blurb is copied below. They
probably
> > don't do the underwriting but it's at least worth looking into if you
> > haven't already. If their airplane insurance is anything like their car
> > insurance it probably can't be beat now that Phoenix is out. Since just
> > about every military officer is a usaa member, they surely have dealt
with a
> > LOT of pilots and pilot questions/demands. I'll call Monday myself and
let
> > you know what I find out.
> > >
> > > If anyone's already insured by them on the list, would you mind
sharing
> > what you know?
> > > Thanks,
> > > Lucky
> > >
> > >
> > > USA
> > >
> > > Toll-Free
> > >
> > > 1-800-343-1547
> > > Monday - Friday, 7:30 a.m. - 6 p.m. CT
> > >
> > >
> > >
> > >
> > method=post>
> > >
> Aviation Insurance
>
> > >
> > > The Sky's the LimitFrom coverages for hull damage and liability to
medical
> > payments, the USAA General Agency can provide competitive quotes,
> > personalized attention, and a highly trained staff of professionals. We
> > understand your needs as a pilot. Contact Us.
> > >
> > > Before purchasing aviation insurance, it is important to look at some
of
> > the contract coverages that are not always so obvious. Besides comparing
> > hull and liability coverage and premium, these are some questions to ask
> > when you shop for coverage:
> > >
> > >
> > >
> > >
> > > Can other pilots fly my aircraft? If so, what are the requirements?
> > > How much expense reimbursement will the policy allow for other pilots
> > flying the aircraft?
> > > Does the policy provide coverage for the use of a non-owned aircraft?
> > > Does this company provide legal representation if I'm sued?
> > > What rating has A.M. Best assigned to this insurance company?
> > > Is there premises liability coverage for the hangar or tie-down space?
> > >
> > >
> >
> >
> >
> >
> >
> >
>
> I called and talked to Shannon today at USAA.
>
> I got $50K builders insurance which includes anything up to starting the
engine. I'll haggle that or change it when the time comes but it does
include the move as long as I move it and not professionals, strangely
enough, and at the airport whilehangaring it. I am paying $500. I think $60K
was $541. Liability was like another $250. Didn't seem worth it so I didn't
get it though it might be required when moved to the airport per airport
rules..
>
> There's a $200 deductable and it's through USAIG (NOT AIG).
>
> Then I threw out ahypothetical worst case number for full flight RV 8
tailwheel coverage thinking it can only get better from here: I forgot my
notes at work but I think that askedif I had 200 hours overall, 40 hours
tailwheel, and 5 hours dual in an RV with a CFIwhat would it would cost.
About $2000 through AIG (not USAIG) with the 5% AOPA discount was the
answer. That was for $1M each person liability, $70K to $80K Hull, and some
other stuff I can't remember. But it's better than the $2700 or whatever
figure I thought I read on this list.
>
> Lucky
> -------------- Original message --------------
>
> -- RV-List message posted by: "JT Helms" <JHELMS@NATIONAIR.COM>
>
> USAA is a broker just like NationAir, Falcon, and anyone else whom you'd
> talk to about aviation insurance (except AVEMCO the direct writer).
>
> JT (former Army officer and USAA member)
> ----- Original Message -----
> From: "lucky" <LUCKYMACY@COMCAST.NET>
> To: "RV-List" <RV-LIST@MATRONICS.COM>; "RV yahoo"
> <VANSAIRFORCE@YAHOOGROUPS.COM>
> Subject: RV-List: Aircraft Insurance: USAA
>
>
> -- RV-List message posted by: luckymacy@comcast.net (lucky)
>
> Just an FYI for USAA insurance members (ie, qualified current
> ex-military members). I was on their web site this morning and saw they
do
> provide Aviation service. The
> ir minute blurb is copied below. They probably
> don't do the underwriting but it's at least worth looking into if you
> haven't already. If their airplane insurance is anything like their car
> insurance it probably can't be beat now that Phoenix is out. Since just
> about every military officer is a usaa member, they surely have dealt
with a
> LOT of pilots and pilot questions/demands. I'll call Monday myself and
let
> you know what I find out.
>
> If anyone's already insured by them on the list, would you mind sharing
> what you know?
> Thanks,
> Lucky
>
> USA Toll-Free 1-800-343-1547
> Monday - Friday, 7:30 a.m. - 6 p.m. CT
>
>
> Aviation Insurance
>
>
> The Sky's the Limit
> From coverages for hull damage and liability to medical payments, the
>
> USAA General Agency can provide competitive quotes, personalized
attention,
> and a highly trained staff of professionals. We understand your needs as
a
> pilot. Contact Us.
>
> Before purchasing aviation insurance, it is important to look at some of
> the contract coverages that are not always so obvious. Besides comparing
> hull and liability coverage and premium, these are some questions to ask
> when you shop for coverage:
> Can other pilots fly my aircraft? If so, what are the requirements?
> How much expense reimbursement will the policy allow for other pilots
> flying the aircraft?
> Does the policy provide coverage for the use of a non-owned aircraft?
> Does this company provide legal representation if I'm sued?
> What rating has A.M. Best assigned to this insurance company?
> Is there premises liability coverage for the hangar or
> tie-down space?
>
> Just an FYI for USAA insurance members (ie, qualified current
ex-military
> members). I was on their web site this morning and saw they do
> provideAviation service. Their minute blurb is copied below. They
probably
> don't do the underwriting but it's at least worth looking into if you
> haven't already. If their airplane insurance is anything like their car
> insurance it probably can't be beat now that Phoenix is out. Since just
> about every military officer is a usaa member, they surely have dealt
with a
> LOT of pilots and pilot questions/demands. I'll call Monday myself and
let
> you know what I find out.
>
> If anyone's already insured by them on the list, would you mind sharing
> what you know?
> Thanks,
> Lucky
>
>
> <NOBR>USA</NOBR>
>
> <NOBR>Toll-Free<
> /NOBR>
>
> 1-800-343-1547
> <NOBR>Monday - Friday, 7:30 a.m. - 6 p.m. CT</NOBR>
> <!-- prodwas9a,low_impact_01 -->
>
>
> <FORM id=pc_aviation name=pc_aviation action=/inet/gas_pc/StaticPages
> method=post
>
> <H1>Aviation Insurance</H1>
>
> The Sky's the LimitFrom coverages for hull damage and liability to
medical
> payments, the USAA General Agency can provide competitive quotes,
> personalized attention, and a highly trained staff of professionals. We
> understand your needs as a pilot. Contact Us.
>
> Before purchasing aviation insurance, it is important to look at some of
> the contract coverages that are not always so obvious. Besides comparing
> hull and liability coverage and premium, these are some questions to ask
> when you shop for coverage:
>
>
> <IMG height=1 alt="" src="https://ww4.usaa.com/media/g_blank.gif"
width=1>
>
> Can other pilots fly my aircraft? If so, what are the requirements?
> How much expense reimbursement will the policy allow for other pilots
> flying the aircraft?
> Does t
> he policy provide coverage for the use of a non-owned aircraft?
> Does this company provide legal representation if I'm sued?
> What rating has A.M. Best assigned to this insurance company?
> Is there premises liability coverage for the hangar or tie-down space?
>
>
> ch Engine: http://www.matronics.com/search
>
>
Message 7
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| Subject: | Re: Wheel pant brackets cracking? |
--> RV-List message posted by: SportAV8R@aol.com
Yep; replaced the nosewheel brackets on my 6A twice already... these parts take
a lot of punishment when you taxi through a pothole; the entire weight supported
by the wheel can be transferred to the pant and brackets if the pothole or
ditch is just the right size for the tire to drop into. Vibration loads on rough
strips don't help the aluminum last a long time either.
-BB
Message 8
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--> RV-List message posted by: Wheeler North <wnorth@sdccd.cc.ca.us>
Ah Ha,
I got you beat, I already measured mine.
New its 5.875" diameter; mine, at 800 hours, is at 4.812"D which means I
have worn off about 1/2".
I wonder what the increase on tail wheel wieght is because of this? Less
rubber but the CG is moved aft a tad due to the shift in attitude.
I do agree, it does get hung up in tie down potholes a lot more.
Hmmm, still don't know if its worn out yet?????
W
do not archive
Message 9
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--> RV-List message posted by: Wheeler North <wnorth@sdccd.cc.ca.us>
Time: 06:56:48 AM PST US
From: "Charles Heathco" <cheathco@comcast.net>
Subject: RV-List: Auto Pilot choice
C,
suggest you check the archives, lots on both Trutrak and Trio.
I don't agree that customer support will tell you much because the two top
contenders both have great support.
Both are also developing really neat features, although I think I like some
of the display features of the trio better than the trutrak.
The Trio will display all the data stream that it is reading from the GPS,
so if you are in a different screen on your GPS, like changing your DRCT TO
you can leave it there until you actually hit the current way point then
push the last button to activate the new waypoint in the GPS. The Trio will
display the data while the GPS is not.
I don't know if the Trutrak does the turn anticipation like the Trio does,
but if your GPS has this in the data stream its an awesome feature. It
virtually eleminates the need for a procedure turn or vectors to the next
heading. The darned thing just turns early and pegs the next track line
within one tick everytime.
The one advantage the Trutrak has is an integrated two axis AP, but it is my
understanding that the Trio guys are hard at developing the altitude
solutions as well.
If I were to buy right now I would probably still go with the Trio because I
like the features it offers and I don't need anything other than the alt
hold for the other axis. That said, though, if you really want two axis with
vertical management capabilities go with the full boat of the Trutrak. If
you are not in a hurry though, I would wait a while and see what features
the Trio guys come up with on their newest developments.
W
Message 10
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|
| Subject: | Re: Wheel pant brackets cracking? |
--> RV-List message posted by: Bill VonDane <bill@vondane.com>
RV-6 builder Robby Attaway sells stainless steel brackets... I don't have
them, but have heard good things about them...
http://www.attawayair.com/rv6_products.htm
-Bill
----- Original Message -----
From: <SportAV8R@aol.com>
Subject: Re: RV-List: Wheel pant brackets cracking?
--> RV-List message posted by: SportAV8R@aol.com
Yep; replaced the nosewheel brackets on my 6A twice already... these parts
take a lot of punishment when you taxi through a pothole; the entire weight
supported by the wheel can be transferred to the pant and brackets if the
pothole or ditch is just the right size for the tire to drop into.
Vibration loads on rough strips don't help the aluminum last a long time
either.
-BB
Message 11
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|
| Subject: | -8 rear weldment dimensions... |
--> RV-List message posted by: Bill VonDane <bill@vondane.com>
Any -8 builders near their airplanes at the moment?
I was hoping top get some measurements of the weldment between the seats...
Contact me off list please...
-Bill
bill@vondane.com
Message 12
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| Subject: | Re: Wheel pant brackets cracking? |
--> RV-List message posted by: Hopperdhh@aol.com
I haven't had the brackets crack yet, but the bolts holding the brackets to
the axle (on the main gears) keep working loose. This happens within about 20
to 30 landings. I don't have the wood dampeners. Will they help this
problem? Also, there was a post a few weeks ago about balancing the fairings.
The
Grumman fairings have lead weights in the front of them. It seems like these 2
things might help. I can see where letting the bolts get loose would lead to
more problems. I fly out of a grass strip. Do others have this same
problem?
Dan Hopper
RV-7A
Message 13
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| Subject: | Re: Wheel pant brackets cracking? |
--> RV-List message posted by: SportAV8R@aol.com
I've had to tighten the main pant bracket bolts _really tight_ a few times to prevent
the work-loose problem (live on a grass strip here, and it is definitely
a vibration issue.)
-BB
Message 14
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| Subject: | Wheel pant brackets cracking? |
--> RV-List message posted by: "Stein Bruch" <stein@steinair.com>
Just an FYI, but make sure you don't install the wheel pant brackets with
Nyloc nuts. They will for sure come loose sooner or later just due to the
heat from braking. However, if you never use the breaks obviously it won't
be as big of a deal, but likewise flying of a bumpy short grass strip, mine
were also loose until I switched to nice high temp nuts (no nyloc's). Been
tight now for 200+hrs.
Cheers,
Stein.
-----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: Wheel pant brackets cracking?
--> RV-List message posted by: SportAV8R@aol.com
I've had to tighten the main pant bracket bolts _really tight_ a few times
to prevent the work-loose problem (live on a grass strip here, and it is
definitely a vibration issue.)
-BB
Message 15
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DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws;
s=s1024; d=yahoo.com;
b=1bO7XPL/icUqsjf8GBXGH1xec0wfrhyMortCmI314/39gHRHphlb/srX/XU0hmfRHZbkMU7FiBbP0R0w6FAt++zFaxFFXAVt5KcUWSCoVJKLd4u2oGFHK0vjb3dsVeq5tvWcme4O3yATZj8/B/j1RV+aaUgVIaSux2HGRq2+w3E=
;
| Subject: | Re: Oil Cooler Location |
--> RV-List message posted by: <gmcjetpilot@yahoo.com>
My reference to band-aid and baffle reinforcement was not a put down. I dont think
an aerospace structural engineer could do better. I have seen many builders
design great looking supports for their OC, and no doubt it works good - lasts
a long time. My experience was not so good. Let me know in 200-400 hours what
you think.
Also I did not mean to imply pressure at the rear baffle is not available to do
cooling work, just that airflow in the cowl at the rear baffle may not be directed
ideally to go thru the OC just bolted up to the rear baffle (without some
help).
OCs mounted directly to the baffle work OK and get the job done, but there are
advantages to other methods. If it works it works. I feel better pressure recovery
and efficiency is available. Plus (possible) baffle cracking, oil cooler
cracking and reduced cylinder head cooling are (3) good reasons to consider NOT
bolting up directly to the baffle. Isolating the OC can be done with little
or no extra weight.
I have done both OC mounts and prefer to mount it off the engine mount and connect
it with a short flexible duct. Design of the duct-work needs to be done properly
to work well. When I moved my OC off the baffle. I went from a 9row to
a 7row OC. Oil temps stayed the same (190F) and climb #4 CHT was better by (20F),
about 380-390F.
Consider not mounting the cooler directly to the baffle or firewall, but to the
engine mount tubes. Use Adel clamps, or if you are a welder, add a few mounting
tabs. (3) mounting points are plenty. You don't have to make it Hell-for-Stout
like when mounting it on a shaking baffle. It also can be at any crazy angle
you want, within reason, to fit between the tubes. Less baffle reinforcement
offsets the duct-work weight. Maintenance was restricted to the L-Mag. However
it's easy to move the OC, w/ 3 bolts and a clamp. Oil line route allows cooler
to swung up and forward, out-of-way. How much Mag service is needed? Do you
have a L-Mag?
Baffles are crack prone anyway, even without the weight (oil cooler) hanging on
it. The back rear baffle is not real stiff or is totally un-supported. Adding
a diagonal brace to the engine case split line bolt & heaver gage sheet metal
will help no doubt, but the Lyc shakes like a wet dog. Nuff said.
Two people I know of had #4 valve problems (burnt, sticking), and their OC was
mounted adjacent on the baffle. I think taking air away from the head area, at
the most critical area, may not be ideal. I have no data, just empirical evidence.
With a short duct connection, the OC inlet on the baffle can be located
away from the cyl head, plus isolate it from vibration.
Maintenance on many items is vibration related. On my RV-7 I am trying to improve
on things repair on the RV-4, like baffles and Vans carb airbox, which needs
a brace on the forward part to help support and stop vibration movement. ( The
carb airbox tends to crack the plate where it bolts on the carb - vibration,
flat plate in bending, cutouts, stress concentrationCRACKS.)
[Note: interesting picture Dan sent on this thread. It shows a box (plenum) of
ample volume to act like a reservoir. I think OCs mounted direct to baffle would
have improved cooling with an offset volume or box. Only a Scientific Wild
Ass Guess (SWAG).]
From Dan:
http://images.rvproject.com/m20j/images/engine/firewall.jpg
This one shows the "duct" built into the baffles.
http://images.rvproject.com/m20j/images/engine/baffle.jpg (thats a big hole)
Anyway you mount it, it can work; Use a good quality oil cooler like SW and (CHT)
gage (not Westach/Westberg). Have fun .
Cheers
Message 16
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| Subject: | Re: Oil Cooler Location |
--> RV-List message posted by: "Dan Checkoway" <dan@rvproject.com>
> >From Dan:
>
> http://images.rvproject.com/m20j/images/engine/firewall.jpg
>
> This one shows the "duct" built into the baffles.
>
> http://images.rvproject.com/m20j/images/engine/baffle.jpg (thats a big
hole)
I forgot to mention...on that Mooney 201 with the firewall-mounted oil
cooler, I had consistently high oil temps in all ambient temps above 51F
(below 51F was never a problem, but that was the magic number). I often had
to open the cowl flaps in cruise during the summer. Usually just opened to
the "in trail" position, but occasionally opened further. It was a pain
(lost speed!). That oil loved to run hot. I'm not suggesting it had
anything to do with firewall versus baffle mouting, just wanted to throw
this data point out there. YMMV
Something else I've been saying I'm gonna do one of these days but still
haven't gotten around to is making heat shields for a few spots on the
exhaust where it comes close to the sump, and also where it comes close to
cylinder #1. I've been told and believe that the proximity of the exhaust
to the sump in these spots contributes to higher oil temps, especially in
the climb. I figure a little aluminum standoff shield between there can go
a long way. We'll see. Need to stop flying for a day or two in order to
work on the plane...fly...or work? Hm.... ;-) Hard to rationalize when
there's not a "problem" to solve per se.
)_( Dan
RV-7 N714D
http://www.rvproject.com
Message 17
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| Subject: | Re: Wheel pant brackets cracking? |
--> RV-List message posted by: "Tom & Cathy Ervin" <tcervin@valkyrie.net>
Dan, My bolts are safety wired per the plans.
Tom
in Ohio
----- Original Message -----
From: <Hopperdhh@aol.com>
Subject: Re: RV-List: Wheel pant brackets cracking?
> --> RV-List message posted by: Hopperdhh@aol.com
>
>
> I haven't had the brackets crack yet, but the bolts holding the brackets
> to
> the axle (on the main gears) keep working loose. This happens within
> about 20
> to 30 landings. I don't have the wood dampeners. Will they help this
> problem? Also, there was a post a few weeks ago about balancing the
> fairings. The
> Grumman fairings have lead weights in the front of them. It seems like
> these 2
> things might help. I can see where letting the bolts get loose would lead
> to
> more problems. I fly out of a grass strip. Do others have this same
> problem?
>
> Dan Hopper
> RV-7A
>
>
>
Message 18
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| Subject: | Re: Wheel pant brackets cracking? |
--> RV-List message posted by: Hopperdhh@aol.com
In a message dated 12/14/04 7:31:38 PM US Eastern Standard Time,
tcervin@valkyrie.net writes:
> Dan, My bolts are safety wired per the plans.
> Tom
> in Ohio
>
Tom,
The bolts that I am having trouble with are the 3 bolts that mount the inner
main fairing bracket to the brake mounting flange. My plans didn't show any
safety wire there. Have they changed? I thought about using castle nuts with
cotter keys.
Dan Hopper
RV-7A
Message 19
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| Subject: | Wheel pant brackets cracking? |
--> RV-List message posted by: "Stein Bruch" <stein@steinair.com>
I'll try this hint again.....Use the High Temp Self Locking Nuts....
They don't come loose, don't melt, and you don't have to fiddl with cotter
keys, etc..
Cheers,
Stein
Do Not Archive (already there)
-----Original Message-----
From: owner-rv-list-server@matronics.com
[mailto:owner-rv-list-server@matronics.com]On Behalf Of
Hopperdhh@aol.com
Subject: Re: RV-List: Wheel pant brackets cracking?
Tom,
The bolts that I am having trouble with are the 3 bolts that mount the inner
main fairing bracket to the brake mounting flange. My plans didn't show any
safety wire there. Have they changed? I thought about using castle nuts
with
cotter keys.
Dan Hopper
RV-7A
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