Today's Message Index:
----------------------
1. 04:52 AM - Re: steel to aluminum tube comparison (jarheadpilot82)
2. 06:40 AM - Re: Re: Volkswagen Engine (Steven Dortch)
3. 07:07 AM - Re: Volkswagen Engine (Steven Dortch)
4. 07:16 AM - Bingelis books $20 off! (Jack)
5. 08:02 AM - Re: Volkswagen Engine (papadave)
6. 10:41 AM - Re: steel to aluminum tube comparison (taildrags)
7. 10:58 AM - Re: steel to aluminum tube comparison (jarheadpilot82)
8. 12:30 PM - A65 Rose Bowl cut outs (Gerry Holland)
9. 01:29 PM - Re: Re: Carollton Ga. Gang (g. doe)
10. 02:02 PM - Re: A65 Rose Bowl cut outs (Gardiner Mason)
11. 03:04 PM - ham radio Freqs ()
12. 03:57 PM - Re: ham radio Freqs (jim hyde)
13. 03:59 PM - Re: ham radio Freqs (jim hyde)
14. 04:33 PM - Re: Carollton Ga. Gang (nightmare)
15. 05:37 PM - Re: A65 Rose Bowl cut outs (taildrags)
16. 05:42 PM - Re: Re: Carollton Ga. Gang (Steven Dortch)
17. 05:44 PM - Eyebrow cowlings (Steven Dortch)
18. 06:01 PM - Re: A65 Rose Bowl cut outs (Don Emch)
19. 07:15 PM - Re: Carollton Ga. Gang (nightmare)
20. 07:20 PM - Re: Carollton Ga. Gang (nightmare)
21. 08:22 PM - Re: Eyebrow cowlings (taildrags)
22. 09:53 PM - Re: Scouting for a new home (taildrags)
23. 09:56 PM - Re: Carollton Ga. Gang (tools)
24. 10:02 PM - Re: Re: Scouting for a new home (Ray Krause)
Message 1
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| Subject: | Re: steel to aluminum tube comparison |
Oscar,
Does any of this help?
--------
Semper Fi,
Terry Hand
Athens, GA
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| Subject: | Re: Volkswagen Engine |
Aviken, Have you looked at any jeep modifications to the Go-devil engine?
Surely someone hopped that engine up. There might even be some fairly low
tech improvements.
On Sat, Feb 15, 2014 at 5:11 PM, aviken <aviken@windstream.net> wrote:
>
> Hi Dave. Welcome to the site. I am relatively new myself, I only started
> building in early Nov. last year. I too have ideas of using a
> non-traditional pietenpol engine, I am in the process of ground testing a
> jeep 134 go-devil engine to see if it will spin a prop up sufficiently.
> It may not have enough guts to do the job, and if it doesn't I will go
> with something else.
> I hope you enjoy your build as much as I have so far. Get to cutting and
> glueing you will have a great time.
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p=418762#418762
>
>
Message 3
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| Subject: | Re: Volkswagen Engine |
To echo what you have heard and restate it. The VW makes its Horsepower at
higher RPM. That works for something like a speedy little Sonex type plane.
But for the slower Pietenpol, it prefers a slower revving higher torque
engine swinging a longer prop. To get the VW to do this you have to get an
RPM reduction drive.
Much like a old fashioned jeep made a lot of torque down low to get out of
mud at slowspeed. VS a roadrace motorcycle.
I have been told that some of the Corvair engines make 140 HP but really
only have about 100 HP useable at the right speeds for the prop. But I may
be wrong on that.
Blue Skies,
Steve D
On Sat, Feb 15, 2014 at 9:10 AM, papadave <dave@djhill.net> wrote:
>
> I'm new. Just got my plans from Andrew Pietenpol and a mechanic friend of
> mine says he has several VW engines and he'd let me have one pretty cheap
> and I'm wondering what are the major considerations for choosing an engine?
> I haven't read the plans or manual yet and I have all of Tony Bengalis's
> books coming from EAA (which I promise to read cover to cover). Do you
> think VW is a viable option or a wild goose chase? Would appreciate input
> from the group.
>
> --------
> Dave
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p=418736#418736
>
>
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| Subject: | Bingelis books $20 off! |
http://www.shopeaa.com/bingelissetof4.aspx
Sent from my iPad
Jack Textor
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| Subject: | Re: Volkswagen Engine |
Thanks everybody for insight on the VW engine. I was just checking for my mechanic
friend who has some VW engines he wants to get rid of.
I'm not exactly Mr. Goodwrench and the Continental C-85 sounds more in line with
my objectives:
- fits in with the Pietenpol plans
- common engine that I can get help with
- can use 100LL AVGAS that is available at every airport that sells fuel.
- like, Jeff, I want to be able to fly with two people on hot summer days.
Thanks everybody!
--------
Dave
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=418793#418793
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| Subject: | Re: steel to aluminum tube comparison |
Terry; yes, those tables are of some use but I would have to calculate the section
moduli and all of that, to get a good cross-reference of an aluminum tube
that is equivalent to steel. Rainy day activity ;o) Thanks.
--------
Oscar Zuniga
Medford, OR
Air Camper NX41CC "Scout"
A75 power
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=418799#418799
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| Subject: | Re: steel to aluminum tube comparison |
I was a section leader when I flew in the Marine Corps but I know nothing about
section moduli.
Let us know what you find out. I would be curious to know how aluminum tubing compares
with 1018 steel. FWIW, those screenshots came from onlinemetals.com
--------
Semper Fi,
Terry Hand
Athens, GA
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=418800#418800
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| Subject: | A65 Rose Bowl cut outs |
Gentlemen Hi.
I have just had made new aluminium front cowling 'rose bowl'.
The lower half was manufactured with no cut outs or holes.
Do I need to cut out the one or two holes I've observed on other aircraft such
as J3's or can I just leave as complete?
The A65 install has so much air passing through the engine compartment it hardly
seems necessary.
Thanks
Gerry
Message 9
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| Subject: | Re: Carollton Ga. Gang |
Try to find Nathan Rounds, may be on this list, has had a nice Piet for a l
ong time and does excellent work, down by Lebanon, GA, not far from you, ga
ry-=0A=0A=0A=0AOn Saturday, February 15, 2014 9:55 PM, Larry Williams <ln
Williams" <lnawms@yahoo.com>=0A=0ABe careful who you look to for ideas. The
group you are referring to did NOT build Pietenpol Air Campers. Their airc
raft are so highly modified and changed from the original that referring to
them as Pietenpol's is stretching credibility pretty far. =0ALook at other
projects and incorporate changes that make sense to you but always keep li
ghtness and simplicity at the top of your list. Don't get led down the path
of modernizing or beefing-up which is a recipe for a heavy airplane that i
s sure to disappoint.=0A=0A--------=0AL.V.Williams=0AXCG, XCMR, ATP=0AUSHPA
, EAA, AMA, EPP=0A=0A=0A=0A=0ARead this topic online here:=0A=0Ahttp://foru
===============
Message 10
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| Subject: | Re: A65 Rose Bowl cut outs |
Post a picture Gerry. I am about to try one myself. Gardiner
Sent from my iPad
On Feb 16, 2014, at 3:29 PM, Gerry Holland <gholland@content-stream.co.uk> wrote:
>
> Gentlemen Hi.
> I have just had made new aluminium front cowling 'rose bowl'.
> The lower half was manufactured with no cut outs or holes.
> Do I need to cut out the one or two holes I've observed on other aircraft such
as J3's or can I just leave as complete?
> The A65 install has so much air passing through the engine compartment it hardly
seems necessary.
> Thanks
> Gerry
>
>
>
>
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Are there any Ham freqs where piet-s hang out, time,freq???
tnx w8zrz
Message 12
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| Subject: | Re: ham radio Freqs |
On Sunday, February 16, 2014 5:10 PM, "don.h@wcoil.com" <don.h@wcoil.com> wrote:
Are there any Ham freqs where piet-s hang out, time,freq???
tnx w8zrz
Message 13
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| Subject: | Re: ham radio Freqs |
only ham I know is me k5dhe 3870 and 3922- cont traders net and texas tra
ders net=0A=0Ajim=0A=0A=0A=0AOn , jim hyde <jnl96@yahoo.com> wrote:=0A =0A
=0A=0A=0AOn Sunday, February 16, 2014 5:10 PM, "don.h@wcoil.com" <don.h@wco
il.com> wrote:=0A =0AAre there any Ham freqs where piet-s hang out, time,f
=======================
Message 14
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| Subject: | Re: Carollton Ga. Gang |
Bill; im building a steel tuber in south florida and also gave Barry and his buddies
a visit. They have been modified a bit but still well worth a visit. Not
many steel tube piets out there, the piet tube plans are lacking lots of valuable
info and I think you would be crazy to not try and visit them. Its very obvious
what is stock and what is not. Im sure your intelligent enough to decide
on your own how or if you want to modify your plane.
--------
Paul Donahue
Started 8-3-12
do not archive
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=418832#418832
Message 15
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| Subject: | Re: A65 Rose Bowl cut outs |
Gerry;
On most photos of J-3s that I've seen, there is a sort of horizontal slot just
below the hole for the prop hub and then a round hole below that, and then the
air filter. I have no idea what the horizontal slot is for but I believe the
hole below it leads into the heat muff for carb heat since I believe it has a
mesh screen in the opening. Neither of those openings should have anything to
do with cooling the engine or oil sump. However, the J-3 does not have a pressure
cowl so there is cooling air entering through the eyebrows, sweeping down
over the cylinders, the out the bottom of the cowling after going around the
oil sump and carb.
I think you can dispense with any additional cutouts. Test fly it and watch the
oil and cylinder head temps and then decide if you need any additional openings.
It's easier to cut new ones than to patch ones that you don't need.
--------
Oscar Zuniga
Medford, OR
Air Camper NX41CC "Scout"
A75 power
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=418834#418834
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| Subject: | Re: Carollton Ga. Gang |
Please provide some details on what the Carrolton group did. I remember
them making "BIG Piets."
Did they come out heavy? Poor flying? can't do short field landings?
Blue Skies
Steve D
On Sun, Feb 16, 2014 at 6:32 PM, nightmare <pauldonahuepilot@yahoo.com>wrote:
> pauldonahuepilot@yahoo.com>
>
> Bill; im building a steel tuber in south florida and also gave Barry and
> his buddies a visit. They have been modified a bit but still well worth a
> visit. Not many steel tube piets out there, the piet tube plans are lacking
> lots of valuable info and I think you would be crazy to not try and visit
> them. Its very obvious what is stock and what is not. Im sure your
> intelligent enough to decide on your own how or if you want to modify your
> plane.
>
> --------
> Paul Donahue
> Started 8-3-12
> do not archive
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p=418832#418832
>
>
Message 17
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| Subject: | Eyebrow cowlings |
Gentlemen and Oscar, How close does the cowling need to be to the back of
the cylenders to be effective? should they just almost rub?
Blue Skies,
STeve D
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| Subject: | Re: A65 Rose Bowl cut outs |
The idea there is to help cool the crankcase. I went ahead and put one in mine.
Kind of a horizontal oval. For all it takes to do it, it's probably a good
idea to go ahead and do it now.
Don Emch
NX899DE
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=418837#418837
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| Subject: | Re: Carollton Ga. Gang |
Best to get info from the source. But can give some info...
Corvair engines, steel tube fuselage is about 25.5 inches wide. The tail feathers
are steel. Elevators are connected via a common leading edge. Push pull rod
to one elevator. Only need one since interconnected. Horizontal stab is adjustable.
Not easily adjustable, but nice idea that enables adjustment After first
flights and notice excess elevator displacement. Wing and nose tank on all
of them. Barry did say they are a bit tail heavy and thinks wood tail feathers
are lighter. Think he may be right.
Even with changes, very nicely built aircraft. Plenty of helpful ideas and
inspiration for a steel tube builder. Grateful they took the time to show me their
Piets.
--------
Paul Donahue
Started 8-3-12
do not archive
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=418840#418840
Message 20
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| Subject: | Re: Carollton Ga. Gang |
Also. Pretty sure the "big piet" name comes from them building 5 or 6 piets at
one time (big piet build) and not that they are big piets.
--------
Paul Donahue
Started 8-3-12
do not archive
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=418841#418841
Message 21
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| Subject: | Re: Eyebrow cowlings |
Steve;
The aft parts of the cooling eyebrows (both the ones that I replaced and the new
ones) touch the back sides of the cooling fins on the heads and cylinders.
On my old ones, there were little grooves worn into the aluminum of the eyebrows...
that's how close they were. The ram air that comes shooting in the front
needs to change from velocity pressure to static pressure to get it to go down
through the fins and around the cylinders and it will escape out the back through
any low-resistance openings it can find. Try to keep the baffles close
to the finned surfaces.
In the case of supersonic airplanes like the Piet, this effect is exaggerated and
cooling effects are especially important to control as the airplane approaches
Mach 1 and shock waves form ahead of the cooling eyebrows.
All kidding aside, down in hot Texas, you need to direct all the cooling air around
the finned surfaces and don't let it shoot past them at the rear of the engine.
--------
Oscar Zuniga
Medford, OR
Air Camper NX41CC "Scout"
A75 power
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=418844#418844
Message 22
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| Subject: | Re: Scouting for a new home |
Worked on the airplane a little more today, and it should only take one more long
work session before it's ready to add fuel and fire it up. Pulled all the
plugs, cleaned and gapped, installed the new cooling eyebrows, went over all the
hardware, clevises, safety wiring, and other security items and all are complete.
I just need to re-torque and safety the prop bolts, service the air filter,
pull the carb float bowl for inspection (airplane has sat for a year), install
the engine cowlings, and I think we're ready to go try propping it off.
Everything else on my list is cosmetic, so there are very few excuses left.
Jeff (Boatright)'s flying and landing video was a tremendous inspiration to get
me ready for flight again, and just hearing the pocketa-pocketa-pocketa idle
of the engine in the video was enough to make me want to hear mine do that again.
After I light off the engine I plan to make some long taxi runs to test the
ground handling with the new tailwheel, warm up the oil, drain and change it,
and then put the airplane away. The following day will be return to flight,
God willing, and the airplane will be in Phase 1 flight testing for 5 hours
in and around the Medford Class Delta airspace.
It's just a little over 90 days till the West Coast Piet Fly-In, so I've got to
get busy...
--------
Oscar Zuniga
Medford, OR
Air Camper NX41CC "Scout"
A75 power
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=418848#418848
Message 23
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| Subject: | Re: Carollton Ga. Gang |
Hey Bill,
I'm having a bunch of folks over next weekend up near Chatt TN (20 to 24 Feb).
Among them are a couple of guys who are building steel tube fuse Piets. You're
welcome to come up, stay a couple days or whatever. I'll be working on getting
my wood fuse Piet assembled (been down for repairs). We're planning on making
some control horns, so if you've made yours, we could use the help!
Bunch of other shop related stuff going on as well.
Maybe some of the Carrollton gang might head up too, all are welcome.
Ping me back channel if you're interested and need details!
Mike Danford, 423 580 1383
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=418849#418849
Message 24
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| Subject: | Re: Scouting for a new home |
Oscar,
Following your progress is really informative to me. I am looking forward to see
you and Scout at the West Coast FLYIN. Keep the good news coming.
Thanks,
Ray Krause
SkyScout abuilding...
Sent from my iPad
> On Feb 16, 2014, at 9:53 PM, "taildrags" <taildrags@hotmail.com> wrote:
>
>
> Worked on the airplane a little more today, and it should only take one more
long work session before it's ready to add fuel and fire it up. Pulled all the
plugs, cleaned and gapped, installed the new cooling eyebrows, went over all
the hardware, clevises, safety wiring, and other security items and all are complete.
I just need to re-torque and safety the prop bolts, service the air
filter, pull the carb float bowl for inspection (airplane has sat for a year),
install the engine cowlings, and I think we're ready to go try propping it off.
Everything else on my list is cosmetic, so there are very few excuses left.
>
> Jeff (Boatright)'s flying and landing video was a tremendous inspiration to get
me ready for flight again, and just hearing the pocketa-pocketa-pocketa idle
of the engine in the video was enough to make me want to hear mine do that again.
After I light off the engine I plan to make some long taxi runs to test
the ground handling with the new tailwheel, warm up the oil, drain and change
it, and then put the airplane away. The following day will be return to flight,
God willing, and the airplane will be in Phase 1 flight testing for 5 hours
in and around the Medford Class Delta airspace.
>
> It's just a little over 90 days till the West Coast Piet Fly-In, so I've got
to get busy...
>
> --------
> Oscar Zuniga
> Medford, OR
> Air Camper NX41CC "Scout"
> A75 power
>
>
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p=418848#418848
>
>
>
>
>
>
>
>
>
>
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