Today's Message Index:
----------------------
1. 03:46 AM - Re: Re: Electrical Layout (Jack)
2. 04:49 AM - Re: Steel Parts Again (helspersew@aol.com)
3. 05:11 AM - Re: Steel Parts Again (Bill Church)
4. 05:22 AM - Re: Continental A75 Piets (pineymb)
5. 05:34 AM - Re: Continental A75 Piets (Gerry Holland)
6. 05:46 AM - Continental A75 Piets (kmordecai001@comcast.net)
7. 06:51 AM - Re: Re: Steel Parts Again (Michael Perez)
8. 11:19 AM - Re: Cross wind component (TriScout)
9. 11:55 AM - Re: Re: Cross wind component (Gerry Holland)
10. 12:11 PM - Re: Re: Cross wind component (Robert Gow)
11. 02:19 PM - Re: Cross wind component (TriScout)
Message 1
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Subject: | Re: Electrical Layout |
Yes I do have a tig, Miller Diversion 165 I believe. I do some of the
non-structural stuff. I use it to tack the important stuff for Jerry Grogan
who does the important stuff.
Jack Textor
Des Moines, IA
-----Original Message-----
From: owner-pietenpol-list-server@matronics.com
[mailto:owner-pietenpol-list-server@matronics.com] On Behalf Of dgaldrich
Sent: Sunday, January 20, 2013 11:56 AM
Subject: Pietenpol-List: Re: Electrical Layout
This is a plug for a fellow Matronics guru, Bob Nuckols, who runs the
Aerolectric forum. His book is almost the Tony Bingelis version of
electrics and has exemplars of many different schemes for aircraft wiring,
from VFR super simple to multi supply, multi battery full efis electron
burners.
Do not archive
Dave
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Message 2
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Subject: | Re: Steel Parts Again |
Harv,
If you were to ask any of the Piet builders that have gone from start to fi
nish, I am sure they all would say that one of the best things about the wh
ole experience was the learning process of every phase. My recommendation t
o you, would be to stretch and challenge yourself to make those horns per p
lans. I had little idea of how I was going to make those myself when I was
first contemplating. But boy was I ever proud of those things when I finish
ed.
Dan Helsper (flames shooting out :O)
Puryear, TN
-----Original Message-----
From: Harvey Plummer <plummerharvey@yahoo.com>
Sent: Sun, Jan 20, 2013 2:15 pm
Subject: Pietenpol-List: Steel Parts Again
.com>
Instead of using 1025 or 4130 steel, has anyone used aluminum? For example,
instead of welding .030" thick parts to make aileron horns, could one use .
090"
or .125" thick aluminum, no welding?
Thanks for the input.
--------
Harv, 485PB
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Message 3
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Subject: | Re: Steel Parts Again |
Don't let the streamlined control horns scare you. They are actually pretty easy
to fabricate. Thin sheet metal is not difficult to shape, and once the horns
are welded, they become incredibly stiff. To make the horns out of flat aluminum,
the thickness would likely need to be 3/16" or 1/4" to result in a comparable
rigidity. And then, you would need to add bolted connections for the flanges
and bracing. For sure, the aluminum horns would be heavier than the steel,
per-the-plans horns.
If the thing that is making you hesitate is the need to weld .030" steel, practice
on a bunch of scrap until you feel confident, or just get a more experienced
welder to do that welding for you.
Like Dan said, once you have them made, and someone asks where you got them, you
can state with pride that you made them yourself.
Bill C.
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Subject: | Re: Continental A75 Piets |
My Piet runs an A-75 and the current prop has been on this engine for about 15
years. Had it redone last spring and is an excellent combination for this engine.
Contact me offline and I will send you the numbers when I get a chance to go to
the airport.
--------
Adrian M
Winnipeg, MB
Canada
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Subject: | Re: Continental A75 Piets |
Fred Hi.
I had a Corben Junior, a similar size and weight to a Pietenpol at UAW of 650 pounds,
Gross 950.
The A75-8 had a 72" X 46" wooden Prop and performed OK. Cruise at 85mph at 2200
rpm.
I never got the 2600 maximum RPM for 75hp regardless of the pitch I tried. Could
well have been a 'tired' engine.
That engine is being completely overhauled and I'm going to chance using a Flottorp
72 X 50 that came with another project.
It may well be I have to defer back to 72 X 46 but worth a try.
Regards
Gerry
Message 6
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Subject: | Continental A75 Piets |
Fred,
I have an A75 on 520SF.=C2- It came to me=C2- with a Hegy 72 x 42, whic
h is about =C2-perfect for an A65.=C2- It will pull 2150- 2200 static a
nd about 2350 WOT level flight, and seems to be happiest cruising at 2150-2
200 & 70-75 mph, depending on ambient conditions .=C2-
A few years ago bought a prop from Clark at Performance Propellers in an ef
fort to get that last 10 hp out of the A75.=C2- He=C2- made this one
=C2-to be a climb prop=C2-for his A75 Cub.=C2- It's a 76 x 39ish (eve
ryone seems to measure pitch in a slightly different manner) , and will tur
n 2500 static and about the same during climb-out at 50 mph.=C2- It requi
res throttling back as you level off to avoid running thru the redline.=C2
- Cruises at 2500 and 70 mph indicated in cool weather,=C2-a bit less
=C2-when it's warm outside.=C2-
I guess the perfect A75 prop would be in between these two, about =C2-260
0 at WOT level flight, and cruising around 2300-2400 .
We're having some nice clear weather along this stretch of the =C2-panhan
dle this weekend.....getting in some flying along with the yard work :-)
Dave Mordecai
Panacea, FL
NX520SF=C2- A75
I dont know of any piets that have an A75 besides Oscar. =C2-I was wonder
ing what
prop we should install to pull our A75 so if anybody out there is running a
n A75
I would be curious to hear your input.
Thanks
--------
Fred Kim
Pittsburgh, Pa
Message 7
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Subject: | Re: Steel Parts Again |
The attached pictures show a prototype rudder horn I made out of aluminum.
I believe it was 1/8".- To keep the horn from rotating about the axis of
the two mounting bolts, I was going to glue in wood blocks on either side o
f the mounting tabs once the horn was bolted in place.
-
I decided it was not worth the risk of going down this road and-the horn
did weigh more than my finished thin steel one. My steel horns have a sligh
tly different airfoil shape, (easier to form)-than the plans show, are li
ght and strong.- It was worth the effort to make and weld the thin steel.
Michael Perez
Pietenpol HINT Videos
Karetaker Aero
www.karetakeraero.com
Message 8
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Subject: | Re: Cross wind component |
Wheel landings/paved rwys: 25kts max 90 deg x-wind... w/light taps on downwind
heel brake when she starts to weathervane...or..15kts max x-wind on paved rwys
(w/out the assistance of downwind brake). Otherwise, just landing on grass seems
easiest. More than 25kts x-wind, it's best to just hit the cafe.
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Subject: | Re: Cross wind component |
Some pretty impressive figures regarding crosswind limits in Pietenpol at 25 knots
at 90 degrees.
Just to put things out of prospective!
Depending on Manufacturers or Operator Procedures, the cross wind limits are around
30/35 knots on dry surface for Airline operations.
Wet can be 25/30 knots. That's a generic range for say 747-400 or Airbus 330/340.
15 knots steady, 10 knots gusting is more than enough for me in a Parasol aircraft
which in all probability is marginal on power at the best of times.
IMHO.
Gerry
Message 10
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Subject: | Re: Cross wind component |
When I was on game I used to land my Tcraft in fairly high crosswinds
(like >20). Would not try it now.
-----Original Message-----
From: owner-pietenpol-list-server@matronics.com
[mailto:owner-pietenpol-list-server@matronics.com] On Behalf Of Gerry
Holland
Sent: January 21, 2013 2:56 PM
Subject: Re: Pietenpol-List: Re: Cross wind component
--> <gholland@content-stream.co.uk>
Some pretty impressive figures regarding crosswind limits in Pietenpol at
25 knots at 90 degrees.
Just to put things out of prospective!
Depending on Manufacturers or Operator Procedures, the cross wind limits
are around 30/35 knots on dry surface for Airline operations.
Wet can be 25/30 knots. That's a generic range for say 747-400 or Airbus
330/340.
15 knots steady, 10 knots gusting is more than enough for me in a Parasol
aircraft which in all probability is marginal on power at the best of
times.
IMHO.
Gerry
Message 11
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Subject: | Re: Cross wind component |
oh yeah...I figure that's worse case scenario. If there is any hint of gust's,
forget it. Generally, if it's more than about a 10-12 knot x-wind, it ain't too
fun anymore on paved surface...cafe time for me.
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