Today's Message Index:
----------------------
1. 02:29 AM - Re:looking for a prop ()
2. 04:21 AM - Re: looking for a prop (Thomas Lukasczyk)
3. 05:20 AM - Re: Re:looking for a prop (Steve Eberhart)
4. 05:21 AM - Humble Apology to Roby Knox (Bob Snedaker)
5. 05:38 AM - Humble Apology to Robby Knox (Bob Snedaker)
6. 05:56 AM - Re: Flying without gear leg fairings (Tim Bryan)
7. 06:11 AM - Re: Re:looking for a prop (Bob)
8. 06:23 AM - Re: Flying without gear leg fairings (Tom & Cathy Ervin)
9. 06:27 AM - Re: Re:looking for a prop (Bob Collins)
10. 07:34 AM - Oil Threads on Prop Bolt? (Matt Jurotich)
11. 07:52 AM - Re: Re:looking for a prop (Konrad L. Werner)
12. 08:03 AM - Re: looking for a prop (Tracy Crook)
13. 09:39 AM - Re: looking for a prop (Ron Lee)
14. 09:35 PM - Exhaust Gasket Installation Question (Dwight Frye)
Message 1
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| Subject: | Re:looking for a prop |
>From: "Eric Whiteside" <erwhites@bellsouth.net>
>Subject: RV-List: looking for a prop
By far the TOP fixed pitch prop choice is the Sensenich.
There is no faster better performing fixed pitch prop on the marked BAR NONE,
and that has been proven by Van.
You could pop for a new BA hartzell for $5,500 and that is the way to go if you
want to stay constant speed.
---------------------------------
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Check outnew cars at Yahoo! Autos.
Message 2
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| Subject: | Re: looking for a prop |
Hi Eric
Take a look at the MT-170_R185-3E. It is a fixed pitch wooden prop with stainless
steel protected leading edges. It is also covered by fiberglass.
I think it is perfectly pitched for a RV-4 powered by an O-320 (160hp). I am reading
exactly 2700rpm at full throttle and top speed.
http://www.rv-4.de/
Thomas, rv-4 0-320
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Message 3
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| Subject: | Re:looking for a prop |
gmcjetpilot@yahoo.com wrote:
> >From: "Eric Whiteside" <erwhites@bellsouth.net>
> >Subject: RV-List: looking for a prop
> By far the TOP fixed pitch prop choice is the Sensenich.
>
> There is no faster better performing fixed pitch prop on the marked
> BAR NONE, and that has been proven by Van.
>
> You could pop for a new BA hartzell for $5,500 and that is the way to
> go if you want to stay constant speed.
Dive for the foxholes, I can already hear all of the Catto owners
pounding on their keyboards. Stay tuned. I have a 3 blade catto on
order for my RV-7A project, but, it will not be flying until early next
year. As soon as it arrives, my hangar mate is going to mount it on his
RV-7 for comparison testing against his fixed pitch Sensenich. Just
wait for the documented scientific experiment. I know there will be
some replies that comment on how prop efficiency goes down as the number
of blades increase; the testing will give us the answers.
Steve Eberhart
RV-7A - On it's gear and O-360-A1A mounted
do not archive
Message 4
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| Subject: | Humble Apology to Roby Knox |
Roby,
Very sorry to drag your good name thru the public mud. Thank you for your payment
on 5/3/07.
It seems that later life is causing me to go off half cocked from time to time,
which always results in becoming red faced.
If I can be of help to you with any of those projects let me know, I will do my
best, quietly!
Again, my humblest apologies, and thanks for your business.
--
Sincerely,
Bob Snedaker
Fairings-Etc
PO Box 5488
Goodyear, AZ 85338
623 203 9795
Message 5
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| Subject: | Humble Apology to Robby Knox |
Robby,
Very sorry to drag your good name thru the public mud, and thank you for the payment
on 5/3/07.
It seems that later life is causing me to go off half cocked from time to time,
which always results in becoming red faced.
If I can be of help to you with any of those projects let me know, I will do my
best, quietly!
Again, my humblest apologies, and thanks for your business.
--
Sincerely,
Bob Snedaker
Fairings-Etc
PO Box 5488
Goodyear, AZ 85338
623 203 9795
Message 6
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| Subject: | Flying without gear leg fairings |
Exactly what I wanted to hear. Thanks Dale.
I was just wanted to make sure they would be stable without the leg fairing
and in particular the lower fairing. I will put leg fairings on, but want
to keep the airplane flying as I get each step done.
Thanks again to all answers
Do Not Archive
Tim
> -----Original Message-----
> From: owner-rv-list-server@matronics.com [mailto:owner-rv-list-
> server@matronics.com] On Behalf Of densing@carolina.rr.com
> Sent: Thursday, May 03, 2007 8:30 PM
> To: rv-list@matronics.com
> Subject: Re: RV-List: Flying without gear leg fairings
>
> Tim,
> I flew my 6A for several hours with just the wheel pants. No leg
> fairings and no lower intersection fairings.
> Dale Ensing
>
> ----- Original Message -----
> From: Tim Bryan <n616tb@btsapps.com>
> Date: Thursday, May 3, 2007 3:46 pm
> Subject: RV-List: Flying without gear leg fairings
> To: rv-list@matronics.com
>
> >
> > Hi all,
> >
> > I have been flying my RV-6 without wheel pants or leg fairings
> > since October
> > when it first took to the air. I had my wheel pants fitted but not
> > the leg
> > fairings. I am wondering if anyone sees a reason why I can't fly
> > with the
> > wheel pants on, and the leg fairings off. At least till I find
> > another day
> > I can spend working on it to fit the leg fairings. Too much flying
> > to do
> > and not enough days to work on it.
> >
> > Tim
> >
> >
> >
> >
> >
Message 7
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| Subject: | Re:looking for a prop |
>By far the TOP fixed pitch prop choice is the Sensenich.
>
>There is no faster better performing fixed pitch prop on the marked
>BAR NONE, and that has been proven by Van.
>
And how do we know this?
Where I can I find the raw data or the source information?
How about a list of all the props used in the comparison evaluation?
Was standard off the self props used, or did the tester test all
variations of a prop from all manufacturers?
Did the tester test custom built props?
Was the exact same pilot, plane, altitude, weather used to evaluate
all the different props?
Was all the testing on the same day?
If not, what errors were induced by different days?
Did all the fuel used come from the same fuel batch?
What sort of instrumentation was used to evaluate the prop?
What were the props evaluated for? Speed, efficiency, climb,
smoothness, vibration, weight etc?
What testing methodology was used?
Who did the data analysis?
How confident was the tester in the final result based upon the data analysis?
Bob
RV6 "Wicked Witch of the West"
Message 8
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| Subject: | Re: Flying without gear leg fairings |
Tim, I flew last season with just the wheel pants on my RV6-A.....No
problems.
Tom in Ohio
----- Original Message -----
From: "Tim Bryan" <n616tb@btsapps.com>
Sent: Friday, May 04, 2007 8:55 AM
Subject: RE: RV-List: Flying without gear leg fairings
>
> Exactly what I wanted to hear. Thanks Dale.
>
> I was just wanted to make sure they would be stable without the leg
> fairing
> and in particular the lower fairing. I will put leg fairings on, but want
> to keep the airplane flying as I get each step done.
> Thanks again to all answers
> Do Not Archive
> Tim
>
>> -----Original Message-----
>> From: owner-rv-list-server@matronics.com [mailto:owner-rv-list-
>> server@matronics.com] On Behalf Of densing@carolina.rr.com
>> Sent: Thursday, May 03, 2007 8:30 PM
>> To: rv-list@matronics.com
>> Subject: Re: RV-List: Flying without gear leg fairings
>>
>> Tim,
>> I flew my 6A for several hours with just the wheel pants. No leg
>> fairings and no lower intersection fairings.
>> Dale Ensing
>>
>> ----- Original Message -----
>> From: Tim Bryan <n616tb@btsapps.com>
>> Date: Thursday, May 3, 2007 3:46 pm
>> Subject: RV-List: Flying without gear leg fairings
>> To: rv-list@matronics.com
>>
>> >
>> > Hi all,
>> >
>> > I have been flying my RV-6 without wheel pants or leg fairings
>> > since October
>> > when it first took to the air. I had my wheel pants fitted but not
>> > the leg
>> > fairings. I am wondering if anyone sees a reason why I can't fly
>> > with the
>> > wheel pants on, and the leg fairings off. At least till I find
>> > another day
>> > I can spend working on it to fit the leg fairings. Too much flying
>> > to do
>> > and not enough days to work on it.
>> >
>> > Tim
>> >
>> >
>> >
>> >
>> >
>
>
>
Message 9
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| Subject: | Re:looking for a prop |
Information that may be of interest to folks in this discussion about props.
Using the handy, dandy Rvator index,
( http://rvhotline.expercraft.com/articles/2006/rvator_index.html ), I found
two articles that folks may want
To read.
2003 Issue 5, page 3 "The best damn prop west of the Pecos: How much of a
difference is there really?" (Van)
2004 Issue 1 page 4 "More on Props" (Van)
2002 Issue 5, page 14 "Behind the Scenes: There's more to matching engines
and props than you might think" (Ken Scott, I presume)
I don't know if all the answers people are seeking are in these articles --
probably not. But they might provide some points of reference.
You know, in that last issue, there was a good article on the canopy frame
that I'd forgotten all about until I used the index and searched on a lark.
Bob
-----Original Message-----
From: owner-rv-list-server@matronics.com
[mailto:owner-rv-list-server@matronics.com] On Behalf Of Bob
Sent: Friday, May 04, 2007 9:06 AM
Subject: Re: RV-List: Re:looking for a prop
>By far the TOP fixed pitch prop choice is the Sensenich.
>
>There is no faster better performing fixed pitch prop on the marked BAR
>NONE, and that has been proven by Van.
>
And how do we know this?
Where I can I find the raw data or the source information?
How about a list of all the props used in the comparison evaluation?
Was standard off the self props used, or did the tester test all variations
of a prop from all manufacturers?
Did the tester test custom built props?
Was the exact same pilot, plane, altitude, weather used to evaluate all the
different props?
Was all the testing on the same day?
If not, what errors were induced by different days?
Did all the fuel used come from the same fuel batch?
What sort of instrumentation was used to evaluate the prop?
What were the props evaluated for? Speed, efficiency, climb, smoothness,
vibration, weight etc?
What testing methodology was used?
Who did the data analysis?
How confident was the tester in the final result based upon the data
analysis?
Bob
RV6 "Wicked Witch of the West"
Message 10
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| Subject: | Oil Threads on Prop Bolt? |
About ready to put the prop on and have heard that one should oil
the threads on the prop bolts for an O 360 with wood prop. I can't
find documentation one way or the other. What did you do and why?
Thanks
Matthew M. Jurotich
e-mail mail to: <mjurotich@hst.nasa.gov>
phone : 301-286-5919
Message 11
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| Subject: | Re:looking for a prop |
Really, I would prefer a Catto Composite (2 or 3 blade) over that heavy
sucker any day! That would be "MY" best choice in a FP Prop!
But I do agree that the blended airfoil Hartzell is probably the best
constant speed choice. do not archive
----- Original Message -----
From: gmcjetpilot@yahoo.com
To: rv-list@matronics.com
Sent: Friday, May 04, 2007 3:28 AM
Subject: RV-List: Re:looking for a prop
>From: "Eric Whiteside" <erwhites@bellsouth.net>
>Subject: RV-List: looking for a prop
By far the TOP fixed pitch prop choice is the Sensenich.
There is no faster better performing fixed pitch prop on the marked
BAR NONE, and that has been proven by Van.
You could pop for a new BA hartzell for $5,500 and that is the way to
go if you want to stay constant speed.
Message 12
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| Subject: | Re: looking for a prop |
Music to my ears Ron. There is usually a speed penalty for going to 3
blades from 2. Catto must do a really fine job to give any increase at
all. Any RPM difference in this swap?
Tracy Crook (Catto 3 blade on 20B powered RV-8)
----- Original Message -----
From: Ron Lee<mailto:ronlee@pcisys.net>
To: rv-list@matronics.com<mailto:rv-list@matronics.com>
Sent: Thursday, May 03, 2007 2:17 PM
Subject: Re: RV-List: looking for a prop
I had an Aymar Demuth on my O-360 RV-6A. I converted to a three blade
Catto prop
and only picked up about 3 mph so either is an option.
Ron Lee
Message 13
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| Subject: | Re: looking for a prop |
Tracy, I got right at 2700 RPM at full throttle at 8000' DA with the
Aymar Demuth.
I have yet to check the RPM under similar conditions with the Catto
prop. If my
recollection is right the speed delta was at 11,500' DA since it was too
time consuming
to fly southeast to get to lower altitude.
Ron Lee
----- Original Message -----
From: Tracy Crook
To: rv-list@matronics.com
Sent: Friday, May 04, 2007 9:01 AM
Subject: Re: RV-List: looking for a prop
Music to my ears Ron. There is usually a speed penalty for going to
3 blades from 2. Catto must do a really fine job to give any increase
at all. Any RPM difference in this swap?
Tracy Crook (Catto 3 blade on 20B powered RV-8)
----- Original Message -----
From: Ron Lee
To: rv-list@matronics.com
Sent: Thursday, May 03, 2007 2:17 PM
Subject: Re: RV-List: looking for a prop
I had an Aymar Demuth on my O-360 RV-6A. I converted to a three
blade Catto prop
and only picked up about 3 mph so either is an option.
Ron Lee
Message 14
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| Subject: | Exhaust Gasket Installation Question |
So ... again, I'm helping a friend install new exhausts on his RV-4,
and I have (yet another) question. The exhaust system came with a full
set of slow-blow gaskets. My understanding (potentially incorrect) was
that these were installed dry (i.e. without any sealant, goop, or goo).
Furthermore, no mention of sealant was made in the installation notes
from Vetterman.
However, upon pulling off the old badly rusted exhaust pipes it seemed
that the old gaskets .. which clearly were identical to what we were about
to install .. had some rubbery goo used on them.
To goo, or not to goo. That is the question. Are we supposed to use some
sealant? If so, what? Enquiring minds want to know. Thanks!
-- Dwight
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