Today's Message Index:
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1. 02:29 AM - Re: RV-6 Crash in PHX-Larry Olson (Jim Sears)
2. 02:44 AM - Re: RV-6 Crash in PHX-Larry Olson (Jim Sears)
3. 04:25 AM - Re: Electronics International gages (Hopperdhh@aol.com)
4. 05:21 AM - Re: Philosophy of the "Repairman" (Rick Galati)
5. 08:02 AM - Re: Prop: FP faster than CS? ()
6. 10:42 AM - Re: RV-6 Crash in PHX-Larry Olson (Cory Emberson)
Message 1
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| Subject: | Re: RV-6 Crash in PHX-Larry Olson |
----- Original Message -----
From: Paul Besing
To: rv-list@matronics.com
Sent: Friday, November 03, 2006 11:53 PM
Subject: RV-List: RV-6 Crash in PHX-Larry Olson
Well, it hasn't been mentioned on here yet, so I guess I'll be the one
to break the news. Our good friend Larry Olson, used to be on the list
for a number of years, has passed. It appears he hit some wires over a
lake near Phoenix.
To those of you who knew him, you know what a great guy he was, and
how much he will be missed. To those of you that didn't, well, you
missed out. I wish I had a nickel for everytime he lent a hand to
someone.
Godspeed, Larry.
Paul Besing
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Message 2
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| Subject: | Re: RV-6 Crash in PHX-Larry Olson |
Fellow listers. It's always sad to find out we've lost another lister;
but, it's especially sad when the lost one is one that we've talked with
often. I used to communicate with Larry often as he was building his
-6. As with others in the past, I lost touch with him. We've lost some
pretty good fellas during the years I've been on this list; and, each
one is like losing a member of the family. A moment of silence or
prayer for Larry and his family may be appropriate.
Jim Sears in KY
do not archive
----- Original Message -----
From: Paul Besing
To: rv-list@matronics.com
Sent: Friday, November 03, 2006 11:53 PM
Subject: RV-List: RV-6 Crash in PHX-Larry Olson
Well, it hasn't been mentioned on here yet, so I guess I'll be the one
to break the news. Our good friend Larry Olson, used to be on the list
for a number of years, has passed. It appears he hit some wires over a
lake near Phoenix.
To those of you who knew him, you know what a great guy he was, and
how much he will be missed. To those of you that didn't, well, you
missed out. I wish I had a nickel for everytime he lent a hand to
someone.
Godspeed, Larry.
Paul Besing
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Message 3
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| Subject: | Re: Electronics International gages |
Paul,
There IS a way to uniformly dim all the panel lights. Check this out. It
has 3 channels. Two of the channels can be adjusted to lower levels than the
master channel. You could add more if you needed to.
http://www.a-and-t-labs.com/K11_Dimmer/index.htm
If you think its too expensive, the schematic is posted on this web site.
And the article (also posted) was in Kit Planes several years ago. You can
change the design to suit yourself. The circuit board (that is sold separately
for $20) is of very high quality.
I bought the kit, but thought the heat sink was too heavy, so I substituted a
lighter one with just as much area. Obviously, I am very happy with this
dimmer.
Regards,
Dan Hopper
RV-7A
In a message dated 11/4/2006 12:24:49 AM Eastern Standard Time,
pbesing@yahoo.com writes:
I just wish there was a way to uniformly dim the entire panel.
Other than that, the instruments are great. And you REALLY can't beat their
customer service. First class.
Paul Besing
Paul Story <PStory@mn.rr.com> wrote:
Message 4
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| Subject: | Re: Philosophy of the "Repairman" |
--> RV-List message posted by: "Rick Galati" <rick6a@yahoo.com>
> To me this whole thing borders on philosophical more than anything else. It's
subjective. I mean...there are certain things we "choose" to take for granted,
and certain things we don't......So where do I draw the line?......I guess
my personal philosophy is...if I CAN check it and it's relatively easy to check,
why not check it...
Well said, Dan. We have to choose our battles and try to use common sense. Gann
had it right...Fate is the Hunter. Rest assured no matter how careful, something
can and will come out of left field someday, whether its driving a car,
flying a plane or walking down the street. Being complacent and being unlucky
are too entirely different things. The trick is to work at distancing the two.
The first you can do something about, the second is always left to fortune.
That's tough but that's life.
DO NOT ARCHIVE
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=72242#72242
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Message 5
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| Subject: | Re: Prop: FP faster than CS? |
Yes RPM means more HP, about 3-5 HP per 100 RPM. FP, turning faster makes more
HP, than a C/S governed to maintain a max RPM, usually 2,700 RPM. Of course this
works in the C/S props advantage on takeoff and climb, because you can (gear
down or go to low pitch) and turn more RPM's than a FP, which is stuck in high
gear, (high pitch).
Metal Fixed Pitch props like the Sensenich tend to be more efficient than wood
fixed pitch because of the airfoil thickness. That means they have potential
to also be faster. However the RENO racers are running 12" long prop extensions
and a light weight WOOD prop is safer for them, especially at the high RPMs
they run at. It is not that METAL props can't be safe, only that you have to
test every installation and RPM to assure it is safe. Wood is much more forgiving.
However it is not ideal for performance.
Vans Last PROP test compared C/S props and one Sensenich prop. (here is a photo
copy of results.)
http://img82.imageshack.us/my.php?image=prop200415me.jpg
The Sensenich actually was faster than all, but the new Hartzell BA prop. However
as was mentioned at the cost of higher RPM and of course fuel burn. The BA
was 208.9 mph and the Sensenich was estimated to be 207.9 at equal 2,500 RPM.
My est is the Sensenich throttled back to maintain 2,500 rpm would actually
be slower than 207.9 MPH because of, pumping loss, or induction drag or restriction
from a partially closed throttle. Never the less the Sensenich is a good
performer and value. That is another reason or advantage of C/S props, they're
more efficient, you can run WOT and adjust the RPM with out moving the throttle.
A fixed pitch prop is optimal at only one speed power setting. A constant speed
is more efficient at a wide range of air speeds and power settings. Its like
a car with one gear or one with 6 gears. EFFICIENCY means the power at the crank
shaft is turned into thrust. Props max efficiency run around 80% plus/minus.
Wood props tend to be thicker and not as efficient, turning engine HP into
thrust and thinner metal props. As mentioned metal is harder to design and test,
which is critical.
Prop weight HAS little to do with top speed. A light Prop does affect payload,
CG, yes! A lighter prop can help or hurt. A RV-7 like mine with a O360 needs the
nose weight to get full use of the baggage area.
Bottom LINE the FP is a compromise and efficient at ONE POINT, a C/S is more
efficient at a wide range of conditions but cost and weighs more. It is possible
a well designed FP metal prop can be almost as efficient or as efficient as
a C/S prop at one point, but the FP prop sacrifices performance in other flight
regimes. Also from Van's test the Sensenich Rocks. Wood props do have the advantage
of being smoother.
Cheers George RV-7, RV-4, B757
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Message 6
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| Subject: | Re: RV-6 Crash in PHX-Larry Olson |
Oh my God - I've known Larry online for years. I am so, so sorry to hear
this, my prayers go to his family and loved ones. He was indeed a Good
Guy, and he'll be missed terribly.
Godspeed.
Cory
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