Today's Message Index:
----------------------
1. 05:36 AM - looking for John Dilatush (Oscar Zuniga)
2. 05:50 AM - Re: Piet/GN-1 performance (Gene Beenenga)
3. 06:13 AM - Re: looking for John Dilatush (Greg Bacon)
4. 06:23 AM - Re: looking for John Dilatush (Carl Vought)
5. 09:18 AM - url for this list (Ken Chambers)
6. 09:39 AM - Re: model A engine costs (malcolm Zirges)
7. 10:07 AM - Re: url for this list (Matt Dralle)
8. 10:13 AM - Re: Piet/GN-1 performance (Steve Ruse)
9. 12:01 PM - Drag wires and flying wires (Barry Davis)
10. 12:04 PM - 35% piet kit available for sale AGAIN (Richard deCosta)
11. 12:48 PM - Re: 35% piet kit available for sale AGAIN (bike.mike)
12. 01:07 PM - Re: 35% piet kit available for sale AGAIN (Richard deCosta)
13. 01:40 PM - Re: Added tailwheel pics to my Yahoo (walt evans)
14. 02:39 PM - Re: model A engine costs (Rcaprd@aol.com)
15. 02:47 PM - Re: Added tailwheel pics to my Yahoo (Rcaprd@aol.com)
16. 03:28 PM - Re: Added tailwheel pics to my Yahoo (Phillips, Jack)
17. 07:05 PM - Re: looking for John Dilatush = large photo attachments!!!! (Kip and Beth Gardner)
18. 09:10 PM - Re: Added tailwheel pics to my Yahoo (Catdesign)
Message 1
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| Subject: | looking for John Dilatush |
--> Pietenpol-List message posted by: "Oscar Zuniga" <taildrags@hotmail.com>
Anybody know if John is still out there in Pietenpol land? He built the
turbo Subaru-powered Piet called "Mountain Piet" and I'm trying to get in
touch with him.
Thanks!
Oscar Zuniga
San Antonio, TX
mailto: taildrags@hotmail.com
website at http://www.flysquirrel.net
Message 2
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| Subject: | Re: Piet/GN-1 performance |
--> Pietenpol-List message posted by: Gene Beenenga <kgbunltd@earthlink.net>
Steve, thanks for your input, sounds good to me! Gene
-----Original Message-----
>From: Steve Ruse <steve@wotelectronics.com>
>Sent: Mar 17, 2006 10:27 AM
>To: pietenpol-list@matronics.com
>Subject: Re: Pietenpol-List: Piet/GN-1 performance
>
>--> Pietenpol-List message posted by: Steve Ruse <steve@wotelectronics.com>
>
>Gene,
>
>My GN-1 is based at a 2,100' grass strip, and even with two people I routinely
>get up in 1,000' or less, even with 18 gallons of fuel. This is with an A-75
>turning a 68"x42 prop near 2,400 RPM static. With just me on board and a
>slight headwind, I can get off in a few hundred feet.
>
>Here is a picture of the field showing obstructions.
>http://www.wotelectronics.com/O44.jpg
>On runway 35, I am always up before the "slight bump" indicated in the
>picture,
>even with two people. Elevation is 1,135'MSL.
>
>Hope this helps, let me know if I can provide any other information.
>
>Steve Ruse
>Norman, OK
>
>
>Quoting Gene Beenenga <kgbunltd@earthlink.net>:
>
>> --> Pietenpol-List message posted by: Gene Beenenga <kgbunltd@earthlink.net>
>>
>> attn Piet/GN-1 pilots:
>>
>> I need some input from those of you that have experience with the
>> GN-1 in particular, but more so, those of you that have flown off
>> short grass.
>>
>> What I need is a few examples verified of actual "roll out distance
>> on grass" to clear a 15' obsticle at take off. Even though may
>> particular situation has no obstacles at either end of this EW strip
>> but farm ground and a country road at one of the ends. The altitude
>> varies 2 feet from one end to the other and is at 680' MSL
>>
>> Here is the situation, i am trying to get dept. of aeronautics to
>> approve a 1330' grass strip for "restricted use for specified
>> aircraft (i.e. GN-1)", they want some "performance input" on this
>> scenerio. Other factor(s) include; stock Corvair turning 3100 RPM on
>> a 2 blade warp drive, 68" ground adjustable prop. The gear on my
>> GN-1 is basically a J4 with standard tires, and a 4" Scott tail.
>>
>> "Mean" Gene
>
>
>
>
>
>
>
Message 3
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| Subject: | Re: looking for John Dilatush |
--> Pietenpol-List message posted by: Greg Bacon <gbacon67@direcway.com>
Oscar,
I'll email John's number to your hotmail account.
Greg Bacon
Prairie Home, MO
gbacon67@direcway.com
----- Original Message -----
From: "Oscar Zuniga" <taildrags@hotmail.com>
Sent: Tuesday, March 21, 2006 7:33 AM
Subject: Pietenpol-List: looking for John Dilatush
> --> Pietenpol-List message posted by: "Oscar Zuniga"
> <taildrags@hotmail.com>
>
> Anybody know if John is still out there in Pietenpol land? He built the
> turbo Subaru-powered Piet called "Mountain Piet" and I'm trying to get in
> touch with him.
>
> Thanks!
>
> Oscar Zuniga
> San Antonio, TX
> mailto: taildrags@hotmail.com
> website at http://www.flysquirrel.net
>
>
> http://www.matronics.com/Navigator?Pietenpol-List
>
>
>
Message 4
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| Subject: | Re: looking for John Dilatush |
Oscar...Sorry I don't have much to offer, but as you probably already know,
the directory has him at 6780 County Road, Salida, CO 81201. I've attached a
couple of photos taken at Brodhead shortly before his accident. Carl Vought
----- Original Message -----
From: "Oscar Zuniga" <taildrags@hotmail.com>
Sent: Tuesday, March 21, 2006 7:33 AM
Subject: Pietenpol-List: looking for John Dilatush
> --> Pietenpol-List message posted by: "Oscar Zuniga"
> <taildrags@hotmail.com>
>
> Anybody know if John is still out there in Pietenpol land? He built the
> turbo Subaru-powered Piet called "Mountain Piet" and I'm trying to get in
> touch with him.
>
> Thanks!
>
> Oscar Zuniga
> San Antonio, TX
> mailto: taildrags@hotmail.com
> website at http://www.flysquirrel.net
>
>
> http://www.matronics.com/Navigator?Pietenpol-List
>
>
>
Message 5
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| Subject: | url for this list |
Hey Guys
Can I get the url for this list just one more time? I get only the digest
but I want to check the photos occasionally.
Ken in Austin, drawing out the instrument panel, slowly as usual.
Message 6
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| Subject: | Re: model A engine costs |
Hello. I am also planning on using an A in my Piet. I have the plane all framed
up and several engines to work with but no actual modifications to engines
yet. Please send me your A info if you have a chance.
Thanks, Mac in Oregon
----- Original Message -----
From: Douwe Blumberg
To: pietenpolgroup
Sent: Monday, March 20, 2006 5:20 AM
Subject: Pietenpol-List: model A engine costs
Mark,
After much research, I am going the Model A route, but be warned, it is anything
but a clear issue.
As you delve into the flying history of the A on Piets, you'll find some very
successful installations and then lots of unsuccessful installations. You'll
also hear lots of strong opinions from people who have never worked or flown
them. It gets hard to know who to listen to.
I decided the only way to get the straight scoop was to track down as many people
who actually flew them and compile a list of thier experiences. To date
I have interviewed about 12 people who have actual flying experience with A's.
What was interesting was what often lay behind the problems was not the engine,
for example Ken Perkins' engine. He's had three major problems, including
two quits. The first one was due to a bad babbit job which came apart and broke
a rod ( the engine kept chugging away). The second was a broken crank, which
broke because he had welded it twice to get it up to specs (a NONO). The most
recent was due to an aircraft certified magneto. So, were these problems due
to the engine?
I didn't run across many broken cranks (none besides Ken's). I will say that
MOST of the problems were accessory related like carburation (#1), mags (usually
aircraft mags), mag housing problems etc. Also lots of problems due to mistakes
made in design or maintenence (like flying around with two sheared prop
bolts!)
Anyways, the A is a very tough, overbuilt engine. If built up well, following
the plans, with lots of care given to the carburation and accessories, they
can be successful, but they have also caused many headaches for people who have
given up.
Regarding power, I spoke with guys who flew two people all the time on hot days.
I also spoke with many guys who could barely stagger into the air on a hot
day solo. There seems to be many variables. I think it is safe to say that
a good running A will fly the plane fine, but you won't be overpowered, and you
better keep the weight down. Remember, these designs required a different
kind of flying than a modern highly-powered design, you just don't have the extra
power, you've got to let it fly itself.
Regarding money, I really overspent on my job. I had most of the work done for
me because I wanted to finish my plane and I'm not much of an engine guy.
I also went down some wrong tracks which ended up costing money. I've also done
things like installed two mags, which REALLY adds to the cost (price two new
magnetos these days!). But I know guys like Larry Williams who were very smart
about what they did and ended up with nice reliable units for decent prices.
I'd say realistically that you'll pay between 2,000 to 6,000 depending on how
much you do and the decisions you make regarding babbit/inserts, dual mags, etc.
If you'd like to see my A journal, email me and I'll shoot you a copy.
Douwe
Message 7
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| Subject: | Re: url for this list |
--> Pietenpol-List message posted by: Matt Dralle <dralle@matronics.com>
At 09:17 AM 3/21/2006 Tuesday, you wrote:
>Hey Guys
>
>Can I get the url for this list just one more time? I get only the digest but
I want to check the photos occasionally.
>
>Ken in Austin, drawing out the instrument panel, slowly as usual.
Ken,
All the goodies can be found here:
http://www.matronics.com/Navigator?Pietenpol-List
Best regards,
Matt Dralle
Matronics Email List Admin
Matt G Dralle | Matronics | PO Box 347 | Livermore | CA | 94551
925-606-1001 V | 925-606-6281 F | dralle@matronics.com Email
http://www.matronics.com/ WWW | Featuring Products For Aircraft
Message 8
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| Subject: | Re: Piet/GN-1 performance |
--> Pietenpol-List message posted by: Steve Ruse <steve@wotelectronics.com>
Gene,
After re-reading that, I feel that I should add one caveat. Although takeoff
roll is short, with two people and full fuel (basically at or near gross
weight), climb performance is poor, and honestly makes me a little nervous at
times. With two people I tend to fly very flat, i.e., I make very shallow,
slow turns to avoid losing speed or altitude. I should probably do some
testing with a passenger to find the optimal AOA for climb...pulling the nose
up too far results in reduced climb along with airspeed, although I am still
far from a power-on stall. At these times, I'm always wishing for the extra
25hp of an O-200. The 75 is OK, but you could get yourself in trouble if you
get yourself in a situation where you need more than 200-300fpm climb,
say on a
go-around after a botched landing, where you are already very slow and running
out of runway. If your Corvair is putting out near 95hp static, I would
imagine it would be a great performer.
I'd like to hear some other input from people on the climb & flight
characteristics of their planes near gross.
Steve Ruse
Norman, OK
Quoting Gene Beenenga <kgbunltd@earthlink.net>:
> --> Pietenpol-List message posted by: Gene Beenenga <kgbunltd@earthlink.net>
>
> Steve, thanks for your input, sounds good to me! Gene
>
> -----Original Message-----
>> From: Steve Ruse <steve@wotelectronics.com>
>> Sent: Mar 17, 2006 10:27 AM
>> To: pietenpol-list@matronics.com
>> Subject: Re: Pietenpol-List: Piet/GN-1 performance
>>
>> --> Pietenpol-List message posted by: Steve Ruse <steve@wotelectronics.com>
>>
>> Gene,
>>
>> My GN-1 is based at a 2,100' grass strip, and even with two people I
>> routinely
>> get up in 1,000' or less, even with 18 gallons of fuel. This is
>> with an A-75
>> turning a 68"x42 prop near 2,400 RPM static. With just me on board and a
>> slight headwind, I can get off in a few hundred feet.
>>
>> Here is a picture of the field showing obstructions.
>> http://www.wotelectronics.com/O44.jpg
>> On runway 35, I am always up before the "slight bump" indicated in the
>> picture,
>> even with two people. Elevation is 1,135'MSL.
>>
>> Hope this helps, let me know if I can provide any other information.
>>
>> Steve Ruse
>> Norman, OK
>>
>>
>> Quoting Gene Beenenga <kgbunltd@earthlink.net>:
>>
>>> --> Pietenpol-List message posted by: Gene Beenenga
>>> <kgbunltd@earthlink.net>
>>>
>>> attn Piet/GN-1 pilots:
>>>
>>> I need some input from those of you that have experience with the
>>> GN-1 in particular, but more so, those of you that have flown off
>>> short grass.
>>>
>>> What I need is a few examples verified of actual "roll out distance
>>> on grass" to clear a 15' obsticle at take off. Even though may
>>> particular situation has no obstacles at either end of this EW strip
>>> but farm ground and a country road at one of the ends. The altitude
>>> varies 2 feet from one end to the other and is at 680' MSL
>>>
>>> Here is the situation, i am trying to get dept. of aeronautics to
>>> approve a 1330' grass strip for "restricted use for specified
>>> aircraft (i.e. GN-1)", they want some "performance input" on this
>>> scenerio. Other factor(s) include; stock Corvair turning 3100 RPM on
>>> a 2 blade warp drive, 68" ground adjustable prop. The gear on my
>>> GN-1 is basically a J4 with standard tires, and a 4" Scott tail.
>>>
>>> "Mean" Gene
Message 9
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| Subject: | Drag wires and flying wires |
I remember about a year ago we talked about threading solid wires and someone had
an address for someone threading stainless rod for under $5 each. Also had
information about spoke type nipples to fit these wires.
I can't seen to get the archives to work, so does anyone have this information?
Barry Davis
Message 10
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| Subject: | 35% piet kit available for sale AGAIN |
--> Pietenpol-List message posted by: Richard deCosta <curiousspider@yahoo.com>
Through an unfortunate set of circumstances which I
won't get into, my 35% complete Piet is available for
sale again.
http://www.richarddecosta.com/images/piet/Piet.html
Short fuse.
$3000 OBO.
Buyer must pick up in Maine.
.O. Composer, Artistic & General Director @ Turing*Shop
..O www.RicharddeCosta.com
OOO
There are 10 types of people in this world: those who understand
binary and those who don't.
Message 11
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| Subject: | Re: 35% piet kit available for sale AGAIN |
--> Pietenpol-List message posted by: "bike.mike" <bike.mike@charter.net>
Richard,
I keep getting redirected to your opera page. I like opera but I want to
see your airplane.
Mike
----- Original Message -----
From: "Richard deCosta" <curiousspider@yahoo.com>
Sent: Tuesday, March 21, 2006 12:04 PM
Subject: Pietenpol-List: 35% piet kit available for sale AGAIN
> --> Pietenpol-List message posted by: Richard deCosta
<curiousspider@yahoo.com>
>
> Through an unfortunate set of circumstances which I
> won't get into, my 35% complete Piet is available for
> sale again.
>
> http://www.richarddecosta.com/images/piet/Piet.html
>
> Short fuse.
>
> $3000 OBO.
>
> Buyer must pick up in Maine.
>
> .O. Composer, Artistic & General Director @ Turing*Shop
> ..O www.RicharddeCosta.com
> OOO
>
> There are 10 types of people in this world: those who understand
> binary and those who don't.
>
>
Message 12
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| Subject: | Re: 35% piet kit available for sale AGAIN |
--> Pietenpol-List message posted by: Richard deCosta <curiousspider@yahoo.com>
Darn, I get that problem sometimes. Try this url:
http://africangospelrhythms.org/piet/Piet.html
Richard
--- "bike.mike" <bike.mike@charter.net> wrote:
> --> Pietenpol-List message posted by: "bike.mike"
> <bike.mike@charter.net>
>
> Richard,
> I keep getting redirected to your opera page. I
> like opera but I want to
> see your airplane.
> Mike
>
> ----- Original Message -----
> From: "Richard deCosta" <curiousspider@yahoo.com>
> To: <pietenpol-list@matronics.com>
> Sent: Tuesday, March 21, 2006 12:04 PM
> Subject: Pietenpol-List: 35% piet kit available for
> sale AGAIN
>
>
> > --> Pietenpol-List message posted by: Richard
> deCosta
> <curiousspider@yahoo.com>
> >
> > Through an unfortunate set of circumstances which
> I
> > won't get into, my 35% complete Piet is available
> for
> > sale again.
> >
> >
> http://www.richarddecosta.com/images/piet/Piet.html
> >
> > Short fuse.
> >
> > $3000 OBO.
> >
> > Buyer must pick up in Maine.
> >
> > .O. Composer, Artistic & General Director @
> Turing*Shop
> > ..O www.RicharddeCosta.com
> > OOO
> >
> > There are 10 types of people in this world: those
> who understand
> > binary and those who don't.
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
>
>
>
>
>
>
> browse
> Subscriptions page,
> FAQ,
> http://www.matronics.com/Navigator?Pietenpol-List
>
> Admin.
>
>
>
>
>
>
>
>
>
>
>
.O. Composer, Artistic & General Director @ Turing*Shop
..O www.RicharddeCosta.com
OOO
There are 10 types of people in this world: those who understand
binary and those who don't.
Message 13
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| Subject: | Re: Added tailwheel pics to my Yahoo |
Chuck,
I built the long fuse. It's been awhile, but I think the swing arm is the same
print for both. Maybe not. Just know that after my mods, I don't have to worry
about the tail.
walt evans
NX140DL
PS Chuck, Your video was great. Got a real kick out of it!
----- Original Message -----
From: Rcaprd@aol.com
To: pietenpol-list@matronics.com
Sent: Tuesday, March 21, 2006 1:04 AM
Subject: Re: Pietenpol-List: Added tailwheel pics to my Yahoo
Jack and Walt,
Do you guys have the Long Fuselage tailwheel swingarm ? The long fuse has a
longer swingarm, and has more tendency to twist with side loads. I have the short
fuselage, and the shorter original design tailskid, with a tailwheel added.
I built it so the wheel is behind the original skid location. It keeps the
tail lower when landing so full stall landings are easier, but I still have
to drag the tail on first, before the mains, to get the full stall landing. I've
never had any problems with twisting the swingarm, and I even do loops on
the ground, with one brake applied heavily. I have this maneuver on my video,
with smoke on. The plane almost disappears in a cloud of Smoke !!
Chuck G.
NX770CG
Message 14
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| Subject: | Re: model A engine costs |
In a message dated 3/21/2006 11:40:13 AM Central Standard Time,
macz@macsells.com writes:
Hello. I am also planning on using an A in my Piet. I have the plane all
framed up and several engines to work with but no actual modifications to
engines yet. Please send me your A info if you have a chance.
Thanks, Mac in Oregon
I have a page on my web site that is dedicated to my experience with the
Model A engine. Lots of pictures.
http://nx770cg.com/ModelAEngine.html
Chuck G.
NX770CG
Message 15
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| Subject: | Re: Added tailwheel pics to my Yahoo |
In a message dated 3/21/2006 3:42:41 PM Central Standard Time,
waltdak@verizon.net writes:
Chuck,
I built the long fuse. It's been awhile, but I think the swing arm is the
same print for both. Maybe not. Just know that after my mods, I don't have to
worry about the tail.
walt evans
NX140DL
PS Chuck, Your video was great. Got a real kick out of it!
Walt,
I didn't realize there was different length swing arms for the two different
lengths fuselages either, until Brodhead '04 when I was looking over Larry W.
award winning Model A Pietenpol. He pointed out that that's the reason for
the cross bar between the Vee, up close to where the pivot mount is, is because
the swing arm would twist without it. I've never seen any drawings of the
longer one.
Chuck G.
NX770CG
p.s. Prop rework is complete, but I still have to complete my Condition
Inspection. Too cold to fly, but I'm getting real ansey to get back in the air
!!
Message 16
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| Subject: | Added tailwheel pics to my Yahoo |
Hi Chris,
When I had the forced landing and broke the axle, the subsequent
groundloop destroyed the leaf spring tailwheel, and cracked the lower
longeron. I elected to change to the BHP design thinking it would be
lighter and stronger. No, Ken didn't build it. I built it, then built
another, stronger one as I described to Walt after the first one built
to the plans proved unsatisfactory.
I'm in California on business, but I'll try to find some pics and send
them to you.
Jack Phillips, PE
Sr. Manager, Disposables Product Development
Clinical Technologies and Services
Cardinal Health
Creedmoor, NC
(919) 528-5212
-----Original Message-----
From: owner-pietenpol-list-server@matronics.com
[mailto:owner-pietenpol-list-server@matronics.com] On Behalf Of
Catdesign
Sent: Monday, March 20, 2006 8:39 PM
Subject: Re: Pietenpol-List: Added tailwheel pics to my Yahoo
Hey Jack, I have pictures of your plane with a leaf spring tail wheel
and the Pietenpol designed A-arm style. What are you running now and
when did you switch. The A-arm looks like the one Ken Perkins builds.
Is this one of them? Got any good pictures of you reinforced A-Arm?
Chris Tracy
Sacramento, Ca
----- Original Message -----
From: walt evans <mailto:waltdak@verizon.net>
To: pietenpol-list@matronics.com
Sent: Monday, March 20, 2006 3:01 PM
Subject: Re: Pietenpol-List: Added tailwheel pics to my Yahoo
Jack,
Yeah, I thought all was OK, till someone said that the wheel was
laying over. Then it made perfect sense. The height of the wheel is a
lever that can twist those tubes with not much pressure. So I
discussed it with my mentor, and he gave me the general Idea, and where
the loads were. I came up with this which was added to the original
tubes. He approved, so I painted it and put it on. No problems with it
except for the fact that it added a smidge to the already heavy tail.
AIN"T LIFE GRAND!! :
)
walt evans
NX140DL
----- Original Message -----
From: Phillips, Jack <mailto:Jack.Phillips@cardinal.com>
To: pietenpol-list@matronics.com
Sent: Monday, March 20, 2006 4:40 PM
Subject: RE: Pietenpol-List: Added tailwheel pics to my
Yahoo
Walt, looking at your tailwheel setup it is obvious you
discovered the same problem with the BHP design I did - the darn thing
wants to twist when the tailwheel is turned. I ended up making my A-arm
of 5/8" x .049 wall tubing, and added cross pieces to prevent twisting
(after breaking the one I made per the plans after only 3 hours of
flying). Of course Bernard designed this mount for a tailskid which by
its nature can't force the kind of twisting loads that a swiveling
tailwheel can. The coil spring does nothing to resist the A-arm
twisting and the whole assembly can go through some alarming gyrations,
which make for some interesting ground-handling characteristics.
Jack Phillips
NX899JP
-----Original Message-----
From: owner-pietenpol-list-server@matronics.com
[mailto:owner-pietenpol-list-server@matronics.com] On Behalf Of walt
evans
Sent: Monday, March 20, 2006 4:26 PM
To: piet list
Subject: Pietenpol-List: Added tailwheel pics to my
Yahoo
Pardon the grass.
http://pg.photos.yahoo.com/ph/joepiet/album?.dir=3D5f03
walt evans
NX140DL
Working together. For life.(sm)
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Message 17
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| Subject: | Re: looking for John Dilatush = large photo attachments!!!! |
--> Pietenpol-List message posted by: Kip and Beth Gardner <kipandbeth@earthlink.net>
>Guys,
It's bben a while since anyone mentioned this, so perhaps some of the
newer members aren't aware of it & maybe some of the long-time
members have forgotten:
Some of us luddites still have VERY SLOW dial-up connections. When
you tack on a couple of large .jpg type picture files to a list
posting, it takes forever for these to transfer.
PLEASE, if you have photos, send them to the photo share function, or
convert them to smaller files in .gif format or something similar.
It's a real pain to have to wait 20-30 minutes for e-mail because a
post with multiple photos is transferring.
Thanks!
KIp Gardner
>>--> Pietenpol-List message posted by: "Oscar Zuniga" <taildrags@hotmail.com>
>>
>>Anybody know if John is still out there in Pietenpol land? He
>>built the turbo Subaru-powered Piet called "Mountain Piet" and I'm
>>trying to get in touch with him.
>>
>>Thanks!
>>
>>Oscar Zuniga
>
--
North Canton, OH
Message 18
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| Subject: | Re: Added tailwheel pics to my Yahoo |
Jack, I'm in California too, you should stop by for a visit so I can pick your
brain in person. It's a small state. I'm sure your no more then 6 or 7 hours
away.
Chris Tracy
Sacramento, Ca
Do not archive
----- Original Message -----
From: Phillips, Jack
To: pietenpol-list@matronics.com
Sent: Tuesday, March 21, 2006 3:25 PM
Subject: RE: Pietenpol-List: Added tailwheel pics to my Yahoo
Hi Chris,
When I had the forced landing and broke the axle, the subsequent groundloop destroyed
the leaf spring tailwheel, and cracked the lower longeron. I elected
to change to the BHP design thinking it would be lighter and stronger. No, Ken
didn't build it. I built it, then built another, stronger one as I described
to Walt after the first one built to the plans proved unsatisfactory.
I'm in California on business, but I'll try to find some pics and send them to
you.
Jack Phillips, PE
Sr. Manager, Disposables Product Development
Clinical Technologies and Services
Cardinal Health
Creedmoor, NC
(919) 528-5212
-----Original Message-----
From: owner-pietenpol-list-server@matronics.com [mailto:owner-pietenpol-list-server@matronics.com] On Behalf Of Catdesign
Sent: Monday, March 20, 2006 8:39 PM
To: pietenpol-list@matronics.com
Subject: Re: Pietenpol-List: Added tailwheel pics to my Yahoo
Hey Jack, I have pictures of your plane with a leaf spring tail wheel and the
Pietenpol designed A-arm style. What are you running now and when did you switch.
The A-arm looks like the one Ken Perkins builds. Is this one of them? Got
any good pictures of you reinforced A-Arm?
Chris Tracy
Sacramento, Ca
----- Original Message -----
From: walt evans
To: pietenpol-list@matronics.com
Sent: Monday, March 20, 2006 3:01 PM
Subject: Re: Pietenpol-List: Added tailwheel pics to my Yahoo
Jack,
Yeah, I thought all was OK, till someone said that the wheel was laying over.
Then it made perfect sense. The height of the wheel is a lever that can twist
those tubes with not much pressure. So I discussed it with my mentor, and
he gave me the general Idea, and where the loads were. I came up with this
which was added to the original tubes. He approved, so I painted it and put it
on. No problems with it except for the fact that it added a smidge to the already
heavy tail.
AIN"T LIFE GRAND!! :
)
walt evans
NX140DL
----- Original Message -----
From: Phillips, Jack
To: pietenpol-list@matronics.com
Sent: Monday, March 20, 2006 4:40 PM
Subject: RE: Pietenpol-List: Added tailwheel pics to my Yahoo
Walt, looking at your tailwheel setup it is obvious you discovered the same
problem with the BHP design I did - the darn thing wants to twist when the
tailwheel is turned. I ended up making my A-arm of 5/8" x .049 wall tubing, and
added cross pieces to prevent twisting (after breaking the one I made per the
plans after only 3 hours of flying). Of course Bernard designed this mount
for a tailskid which by its nature can't force the kind of twisting loads that
a swiveling tailwheel can. The coil spring does nothing to resist the A-arm
twisting and the whole assembly can go through some alarming gyrations, which
make for some interesting ground-handling characteristics.
Jack Phillips
NX899JP
-----Original Message-----
From: owner-pietenpol-list-server@matronics.com [mailto:owner-pietenpol-list-server@matronics.com] On Behalf Of walt evans
Sent: Monday, March 20, 2006 4:26 PM
To: piet list
Subject: Pietenpol-List: Added tailwheel pics to my Yahoo
Pardon the grass.
http://pg.photos.yahoo.com/ph/joepiet/album?.dir=3D5f03
walt evans
NX140DL
Working together. For life.(sm)_________________________________________________ This message is for the designated recipient only and may contain privileged, proprietary, or otherwise private information. If you have received it in error, please notify the sender immediately and delete the original. Any other use of the email by you is prohibited. Dansk - Deutsch - Espanol - Francais - Italiano - Japanese - Nederlands - Norsk - Portuguese - Svenska: www.cardinalhealth.com/legal/emailWorking together. For life.(sm)
This message is for the designated recipient only and may contain privileged, proprietary,
or otherwise private information. If you have received it in error,
please notify the sender immediately and delete the original. Any other use
of the email by you is prohibited.
Dansk - Deutsch - Espanol - Francais - Italiano - Japanese - Nederlands - Norsk - Portuguese - Svenska: www.cardinalhealth.com/legal/email
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