Today's Message Index:
----------------------
1. 05:43 AM - Re: First Flight (Cy Galley)
2. 06:31 AM - Engine Performance (charles.long@gm.com)
3. 10:15 AM - Re: San Diego Builders (wizard-24@juno.com)
4. 12:17 PM - TIG welding... (Jari Kaija)
5. 02:06 PM - Gull wing doors (caspainhower@aep.com)
6. 07:55 PM - Re: High Density Altitude performance (Bruce Bockius)
Message 1
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| Subject: | Re: First Flight |
--> Zenith-List message posted by: "Cy Galley" <cgalley@qcbc.org>
Size and pitch should be stamped in the hub area.
Cy Galley
Editor, EAA Safety Programs
cgalley@qcbc.org or experimenter@eaa.org
----- Original Message -----
From: "Ed" <orion@silcom.com>
Subject: Re: Zenith-List: First Flight
> --> Zenith-List message posted by: "Ed" <orion@silcom.com>
>
> Re the discussion on engine power/weight and props etc. A few details of
my
> 601hds with the 0-235.
> Prop is a wooden Sensenich, two bladed 66" dia and if I remember correctly
> has a pitch of 56... (can't find the paperwork) This was the prop
suggested
> to me by Sensenich when I enquired about prices for a wooden prop. The guy
> there knew the Zenith and recommended a 68" x 56 pitch but because of
ground
> clearance (which turned out not to be an issue) I ordered a 66".
> Aircraft checked on scales when completed at 700lbs empty weight.
> Takeoff rpm (static) is around 2300 which increases to 2500 on the roll
and
> I currently climb at 80kts and 1000/1100ft/min (full fuel and single
> occupant...around 1010lb) With two up ROC is slightly reduced to around
> 800/900ft/min. This is all at sea level.
> Cruise speed at 4500ft by gps (in various directions) averaged out at
105kts
> with 2300rpm set.
> I am hesitant to be definitive about these figures as the engine was
bought
> second hand and compression on one cylinder was only 40/80 and the others
> around 68/80 and I have no history on the engine as far as hours etc go.
I
> have just changed the low cylinder (for another second hand one!)this
> afternoon and am curious to see what, if any, difference it makes....(it
> does run smoother.)
> Maybe the above will be of some help to anyone thinking about using a
> lycoming...I'm pretty happy with it.
>
> Ed 601hds/lyc...56hrs (Ink still wet on my license)
>
>
Message 2
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| Subject: | Engine Performance |
05/23/2003 09:30:53 AM
--> Zenith-List message posted by: charles.long@gm.com
I have a pretty accurate aerodyanamic simulation for the HDS. It is
set up already for the 912 and 912s. If you can feed me torque or
horsepower curves for the other engines, I can add them to the database.
Then you can simply pick various engines and look at performance at
specific weights and altitudes. Simulation will calculate climb
performance as well as cruise speed, best glide speed, glide ratio, etc.
Also could use better prop performance curves if anyone has some. These
are hard to come by.
Chuck Long
Fluid Dyanamics Engr.
Time: 08:19:29 AM PST US
From: "Mark A. Wood" <Mark.Wood@uvm.edu>
Subject: Re: Zenith-List: High Density Altitude performance
--> Zenith-List message posted by: "Mark A. Wood" <Mark.Wood@uvm.edu>
I will really be ticked if my 601HD with an O-200 does not perform
well.(Should be off the ground early summer and I am really looking
forward to that) Some time ago someone started to put together a
chart to compare different engines on different 601 set ups. Did that
ever get done. I know something like that is hard with so many
different variables
engine; 912 vs 914 vs Subaru vs Corvair vs O-200 vs O-235 vs Honda
wing; HD vs HDS vs XL:
landing gear; tricycle vs tailwheel
which prop and angle of prop?
How do you measure speed, air pressure(bad without a static tube) GPS
with a triangular course (good)
I had been looking at using a Subaru or Corvair. If it turns out I
have a dog and it could have been better with a less expensive
engine, I will not be happy. It would be great if we had enough info
to get a good comparison. For me even more than the speed will be the
climb performance. As I said above I think someone started to put
together a chart. What happened to it? Anyone know? Do we need to
pick that idea up again?
Mark Wood
Message 3
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| Subject: | Re: San Diego Builders |
--> Zenith-List message posted by: wizard-24@juno.com
My project is at Rialto Airport, which is about 100 miles from San Diego.
If you strike out finding anyone closer, you're welcome to view mine.
Mike Fortunato
601XL
Do not archive
On Thu, 22 May 2003 15:33:45 -0700 (PDT) Brandon Tucker
<btucke73@yahoo.com> writes:
> --> Zenith-List message posted by: Brandon Tucker
> <btucke73@yahoo.com>
>
> Greetings List,
>
> I just got back from the gulf, so I missed the last few months
> of posts. I just recieved word that I will be transferring to San
> Diego this summer, and I am looking for builders in the area. I
> know one of the computer guys on the list put together a search
> engine a few months ago, but I don't have the site anymore.
>
> Anyone building anywhere in California between San Diego and
> Paso Robles that can give me a looksie during the first two weeks of
> June? I am coming home on vacation and want to see one up close. I
> am tired of looking at the plans and dreaming! I hope to order the
> tail feathers as soon as I close on a house.
>
> Brandon Tucker
> Plans rotting in the closet
>
>
> ---------------------------------
>
>
>
>
>
>
>
>
>
The best thing to hit the internet in years - Juno SpeedBand!
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Message 4
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--> Zenith-List message posted by: "Jari Kaija" <jari.kaija@pp.inet.fi>
Just bought used TIG welding machine:
http://www.jarikaija.com/pub/kemppi_tu20.jpg
I would be more than happy, if you have any tricks, resources and
advices about TIG-welding... and ofcourse, FOR FREE!
"first_time_welding_side.jpg": http://www.jarikaija.com/pub/eka_kerta_hitsipuoli.jpg
"first_time_back_side_of_welding": http://www.jarikaija.com/pub/eka_kerta_hitsin_takapuoli.jpg
I know, it will take a long time to learn "perfect" welder, but... day by day...
-Jari
www.jarikaija.com
www.project-ch701.net
(Spammers! All spam messages will be deleted automatically
from server, so, save your miserable time...)
Message 5
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05/23/2003 04:12:05 PM
--> Zenith-List message posted by: caspainhower@aep.com
I've seen a couple of 601's with gull wing doors. I like the looks and
the idea, wonder if anyone has any information on what's involved or a
website with more info.
Craig S.
601 XL
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Message 6
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| Subject: | Re: High Density Altitude performance |
--> Zenith-List message posted by: "Bruce Bockius" <bruce@whiteantelopesoftware.com>
Hi Bill,
At 00V I'm off runway 15 by A2 with only me onboard, and by A3 with
full fuel & a passenger at any density altitude. That's with a 601HD
with 100hp Stratus engine. And for the record I get about a 300fpm
climb rate at 14000AML with only me onboard.
-Bruce/601HD/Stratus/TDO/363hrs
*****************************
Bruce Bockius
Black Forest, CO, USA
bruce@WhiteAntelopeSoftware.com
http://www.WhiteAntelopeSoftware.com/zodiac
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