Today's Message Index:
----------------------
1. 01:46 AM - verbosity (Lawrence Williams)
2. 06:33 AM - Re: CG vs Wheels Location (Brian Kenney)
3. 06:52 AM - Re: Re: CG vs Wheels Location..emergency situation (danhelsper@aol.com)
4. 07:10 AM - Re: CG vs Wheels Location..emergency situation (Don Emch)
5. 07:16 AM - W&B, Axle Loc., Cabanes and fuel lines (William Wynne)
6. 07:48 AM - A Couple of Welding Questions (jarheadpilot82)
7. 07:53 AM - Re: CG vs Wheels Location..emergency situation (William Wynne)
8. 08:08 AM - Re: CG vs Wheels Location..emergency situation (jarheadpilot82)
9. 08:31 AM - Re: W&B, Axle Loc., Cabanes and fuel lines (Gary Boothe)
10. 08:31 AM - cable guides (nightmare)
11. 08:38 AM - Re: CG vs Wheels Location..emergency situation (Don Emch)
12. 08:49 AM - Re: Re: CG vs Wheels Location..emergency situation (Rick)
13. 08:55 AM - Re: A Couple of Welding Questions (tkreiner)
14. 08:56 AM - Fw: Motor mount fittings (goffelectric@comcast.net)
15. 09:14 AM - Re: A Couple of Welding Questions (tools)
16. 09:24 AM - Re: A Couple of Welding Questions (jarheadpilot82)
17. 09:34 AM - Re: CG vs Wheels Location..emergency situation (tools)
18. 09:45 AM - Re: cable guides (dgaldrich)
19. 09:51 AM - Cross strut size (john francis)
20. 10:00 AM - W&B Spreadsheet (was CG vs Wheel Location..emergency situation) (Jack Phillips)
21. 10:11 AM - Re: Fw: Motor mount fittings (Jack Phillips)
22. 10:20 AM - Re: Cross strut size (curtdm(at)gmail.com)
23. 10:27 AM - Re: Cross strut size (john francis)
24. 10:36 AM - Re: Re: CG vs Wheels Location..emergency situation (Dick N)
25. 10:53 AM - Re: CG vs Wheels Location..emergency situation (tools)
26. 11:12 AM - Re: Cross strut size (curtdm(at)gmail.com)
27. 12:21 PM - Don Emch W&B Data, aka Cure for Insomnia (Don Emch)
28. 12:26 PM - Re: Don Emch W&B Data, aka Cure for Insomnia (Don Emch)
29. 01:12 PM - Re: Fw: Motor mount fittings (Goff Electric)
30. 02:30 PM - Re: A Couple of Welding Questions (tkreiner)
31. 02:34 PM - Re: A Couple of Welding Questions (jarheadpilot82)
32. 02:35 PM - Re: Don Emch W&B Data, aka Cure for Insomnia (airlion2@gmail.com)
33. 02:53 PM - Re: A Couple of Welding Questions (tools)
34. 03:08 PM - Re: Don Emch W&B Data, aka Cure for Insomnia (Don Emch)
35. 03:10 PM - Re: A Couple of Welding Questions (jarheadpilot82)
36. 03:30 PM - Re: Re: Don Emch W&B Data, aka Cure for Insomnia (airlion2@gmail.com)
37. 03:40 PM - Re: Re: CG vs Wheels Location (Michael Perez)
38. 03:42 PM - Re: Re: A Couple of Welding Questions (glenschweizer@yahoo.com)
39. 06:21 PM - Re: running lean (taildrags)
40. 07:24 PM - Re: Re: CG vs Wheels Location (Ryan Mueller)
41. 07:24 PM - Motor mount fittings (santiago morete)
42. 07:46 PM - Re: Re: CG vs Wheels Location..emergency situation (Greg Cardinal)
43. 08:21 PM - Re: Re: running lean (jim hyde)
44. 09:43 PM - Re: Re: CG vs Wheels Location..emergency situation (Ray Krause)
Message 1
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since the list has degenerated from Piet building to favorite books, one of my
favorite books has a quote that I have used only sparingly but seems to fit here:
"It is not advisable, James to venture unsolicited opinions. You should spare yourself
the embarrassing discovery of their exact value to your listener."
My hand is just now hovering over my quiver......
L. Williams
Abominable slowman and semi-retired Top Curmudgeon
Message 2
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| Subject: | CG vs Wheels Location |
This is not a simple problem and it is hard to give correct advice and it i
s the classic example that everything is compromise.
The following are variables that effect the gear position. If you are wonde
r "what the heck: then I will give an example of why some of these are impo
rtant.
VARIABLES
the empty c.g.
the loaded c.g.
the expected c.g range
the fuel placement
the maximum weight of the pilot=2C the minimum weight of the pilot
the assumed wing position=2C the final wing position
the strength of the brakes
the diameter of the wheels
the total height of the c.g above the ground.
WHAT THE VARIABLES EFFECT
The weight on the tail when empty
whether the tail will stay down while empty in a wind
the strength of the tail wheel spring and structure
the ability to stop with brakes
the ability to hold the aircraft on run up
the overturn tendency with brakes
the directional stability (ground looping tendency)
the tendency for the tail to drop hard on landing (if not three pointed)
the tendency to porpoise
the ground handling
what the government says about c.g.
Here is an example - I will use my example so not to offend anyone.
My aircraft has wooden gear=2C motorcycle wheels with brakes =2C and perpen
dicular cabanes. It is an improved fuselage from the 1933 plans and the sto
ck 1931 wooden gear. The fuel is behind the firewall.
I am happy with arrangement but it has limitations and it could easily crit
icized as wrong=2C but being wrong has some advantages.
As built my airplane has the following advantages
-the load on the tail is very light and the structure is light helping the
aft c.g. tendency
- the gear is back in comparison to many giving improved handling and stabi
lity on landing
this means the tail is not forcefully driven down if you land hard .
-the tail comes up very easily on the take off roll.
-it has had thousands of landings over 27 years and it has never been damag
ed in a landing incident. This aircraft is not squirrelly at all
the large wheels reduce rolling resistance=2C and reduces takeoff distance.
- large wheels move the contact point of the wheels in the three point atti
tude to the rear making it more directional stable.
-the fuel in the fuselage reduces the weight transfer back to the tail as t
he tail drops in comparison to fuel in the wing.
My gear position has the following disadvantages
-If I had stronger brakes it would be a danger to flip over - I am very hap
py with my brakes however - they won't hold on a runup buy I don't think th
at would be a good idea anyway.
-my tail is so light when empty that if you lift the tail past horizontal t
he airplane will fall on its nose - never has=2C but don't lose hold
-I operate at and around the aft cg limit. If I were to put weight on the n
ose to make the recommended c.g. limits for aircraft built in Canada=2C I
could not get out of the aircraft as it would fall on its nose. Where I ope
rate the c.g. is as recommended for a Pietenpol and there is not a problem.
It may improve the climb performance.
-As I age and get heavier the c.g. is getting more aft and adding weight to
the nose would make the gear position worse in the rear direction - it is
not really a problem and I can have full fuel and a metal prop instead of a
wood one. I really added this to show how the pilot max weight effects the
setup.
-if a very light pilot used my brakes very hard the tail would come up far
easier
Remember too that many Piets end up with aft cgs and they move the wing bac
k once built. This moves the wheels forward. Best laid plans quickly change
.
One of my favourite saying is - you can be good or you can be lucky but it
is always best to be lucky.
Message 3
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| Subject: | Re: CG vs Wheels Location..emergency situation |
Yesterday I got an emergency call from the great T.C. emeritus while wander
ing on a remote desert path. I hadn't looked at the list in a few days....Y
IKES! All the oxygen is being sucked out of the room. I am glad it wasn't
like this when I was first building. I would have given up, eyes completely
glazed over.
I though y'all were building an old airplane from a set of old plans.
Dan Helsper
Puryear, TN
-----Original Message-----
From: Don Emch <EmchAir@aol.com>
Sent: Fri, Mar 21, 2014 7:51 pm
Subject: Pietenpol-List: Re: CG vs Wheels Location
Good grief! Please don't over complicate this! Either build the plane wit
hout
brakes and keep the gear as is or add brakes and move the axle an inch or t
wo
forward. It's really that simple!! Now go get your hack saw and light up
your
torch!
Don Emch
NX899DE
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=420811#420811
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| Subject: | Re: CG vs Wheels Location..emergency situation |
Exactly Dan! I'm really starting to appreciate that fact that I built most of
mine before the Internet was really up and running. It's such a simple and fun
design. Just go build it and have fun!!
Don Emch
NX899DE
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=420821#420821
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| Subject: | W&B, Axle Loc., Cabanes and fuel lines |
Builders,
There are only four things in Piet building I would like to make builders aware
of, and let them choose to use if they wish:
1) I want to show people that it is easy to build and fly a Piet in the published
15 -20" CG range, even if the engine is as light as an A-40 or as heavy as
an O-235, with pilot weights from 120-320 pounds. We did the testing, I will assist
builders with the math, it doesn't cost any more nor take any more time
to build a plane in CG.
2) I want builders to know that there are published locations for where to locate
the axle with and without brakes, and data on this directly from BHP. You don't
need to guess. This info is with the W&B articles. When building, it doesn't
cost anything to put the axle in a better spot, nor take any more time.
3) I give examples of better ways of building the cabanes, making them more like
BHP did in the 1960s rather than the 1930s. The original plane had one set of
crossed wires and no diagonals. No one does that, I am only suggesting leap
frogging the 1930s light diagonals to the stronger 1960s ones. Again, when building
it doesn't take any more time nor cost more than $5 more in up sized tubing.
4) I would like builders to be aware that a hard aluminum fuel line, run from the
tank to the firewall is likely to get severed, even in a very small accident.
A better option is using a braided steel jacketed flex line. The material for
this costs $20 more than the 5052 hard tubing. It is actually easier to make,
and does not require flaring tools.
------------------------------------------------------
That is it, it is the sum total of my advice to Piet builders. Note that I am not
telling anyone to take even another 5 hours to build a plane, and the money
I am speaking of is $25, maybe 1/400th of the cost of building a low cost Piet.
---------------------------------------------------
Please note: I don't tell people what engine to use, what airfoil, what kind of
wheels, what cover their plane in, what color to paint it, how to paint it nor
how nor where to fly it. I don't have an opinion on 'what is a real Piet' or
any of that. It is very odd to me that a guy who tells people "who the plane
is for" or what engine to use, or that some kinds of covering are 'wrong' is not
perceived as telling people what to do, but the four points I bring up above,
are sometimes perceived as "Telling people what kind of plane they have to
build".
I strongly hold that it is your plane, and you have a right to build it anyway
you want. I don't even care if you follow the four ideas above. All I want is
builders to be aware they exist, and the only people who I have heartburn over
are the people who claim that the data doesn't exist, it is too much work to
do correctly or it costs to much or somehow ruins the spirit of fun flying to
fly in the CG range. Again, those people are trying to tell others what to do
with their planes, I just want builders to understand and choose for themselves.
---------------------------------------------------------
While some people hold that it is a "waste of time and money" to build a Pietenpol
with any type of modification, or adaption or even things like brakes or electric
start, It is my option that it is your time, and your money to waste.
I don't like being told what to do with my time and money, I don't care what people
choose to do with theirs.
Operative word in the last paragraph is Choose. That implies that the builder got
to read about the options, ask questions, hear about it and then picked for
himself.
The one thing I do think of as a colossal waste of money and time is building a
plane that is just OK, and 'works' and then flying it to Brodhead and finding
out that a guy who took the same time building his plane and spent $25 more,
can fly with a pilot that weighs 75 pounds more, land slower, and fully use his
brakes, and doesn't worry about a small mishap dislodging his wing or rupturing
a fuel line. My point is that each builder can either choose to be the guy
with the better plane or the guy looking at it. It is a fee world, take your
pick.-ww.
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=420823#420823
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| Subject: | A Couple of Welding Questions |
I have a couple of welding questions that I hope some of you can help me answer.
Here is the situation - a friend of mine in my EAA Chapter has all of his now
passed grandfather's tools (he was Mechanic at Delta Air Lines for over 35
years) My friend is building an RV-10 so he has little use for the welding equipment,
so he has offered it to me. I have read some but have no one to really
guide me on the following questions, so your help is appreciated.
1. The tanks have some level of Oxygen and Acetylene in them but the tanks have
not been tested in who knows when (I have not really looked for the last date
stamped onto them. Is it safe to use them ntl empty? Or should I take them in
and swap them for other, newer, full tanks?
2. The hoses appear to be okay (no cracks), but I have not yet pressurized them
and sprayed them with soapy water to check for any leaks. Should I just go ahead
and buy new ones? I am guessing the hoses have been coiled up easily 6 or
8 years since last used.
3. The torch it self is a Smith and I have tip sizes 200, 203, and 205. I replaced
the o-rings on the tips. Should I take the torches somewhere to have them
inspected? Can they be rebuilt, if needed?
4. The regulator is the 2-stage type. Do I need to have them inspected as well?
Can they be inspected and repaired if needed?
Obviously, I am trying to ensure the equipment is in good working order before
using them. Thanks for the advice.
--------
Semper Fi,
Terry Hand
Athens, GA
USMC, USMCR, ATP
BVD DVD PDQ BBQ
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=420824#420824
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| Subject: | Re: CG vs Wheels Location..emergency situation |
Dan,
Here is a positive suggestion:
What don't you, Don and Mike Cuy, who all have flying planes that you like, Take
a few minutes to walk out to your planes, get the weight and balance form out
and type it in here, do I can all it to the data base we have for planes. Please
include your axle and tailwheel location, and your pilot weight. If you guys
like your planes, then share the data with everyone and let them directly
copy your set up if they choose to. Brian sent in a lot of data, but I need to
know the weights to put it in the data base.
Jack Phillips sent me an email saying his plane is actually in the CG range with
his pilot weight and set up, It is useful to others to pick which path to follow
if we can get it in the data set.
If you don't like the numerical information, just ignore it. A new builder doesn't
need to understand every line that Chris and Brian wrote in. I will do the
math for them, it is not an issue, I know you guys as pilots can do weight and
balance calculations, don't make it sound hard to new guys, it is a simple format
with 6th grade math. I don't think flying around out of CG adds to the romance
of flight, nor do I see how having a better fuel line ruins every sunset
flight.-ww.
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=420825#420825
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| Subject: | Re: CG vs Wheels Location..emergency situation |
Dan, I would more refer to it as a breath of fresh air. I know that William doesn't
need anyone to speak for him but I think putting safety and risk management
as a priority is never a bad thing. And I think that that is all that William
is trying to point out.
--------
Semper Fi,
Terry Hand
Athens, GA
USMC, USMCR, ATP
BVD DVD PDQ BBQ
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=420826#420826
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| Subject: | W&B, Axle Loc., Cabanes and fuel lines |
To some, the "sound" of WW's 'voice' must be like fingernails on a
chalkboard!
I note that the most experienced pilots, and the pilots who have flown their
Piets for a long time are the most critical of his suggestions. Although,
William doesn't currently fly a Piet, I know of no one, including Doc, who
has paid a higher price to be part of this group! Interesting how his
comments draw such ire and fire, while Chris Tracy's mathematical and
historic recount of the same subject draw none. As Dad liked to say, "What's
right is right...and everything else is wrong."
I, for one, thought I was "just following plans", but being a poor study, I
now realize that I made mistakes. All appear to come out, in the wash, but
those mistakes are still there. Maybe I'll be 'lucky', as one lister
suggests, but my early adventures in flying, some 40 years ago, tell me that
I have already used up a lot of luck! My axle is not placed right, nor is
the wheel base as wide as it should be. Those things remain 'post-it' notes
on my desk...items to get to someday. I'll be flying this plane for a long
time, I hope, and foresee other little projects. Building the gear the first
time was not a big deal, and will be even easier the second time through,
and I'm not going to try to say to anyone that it's OK, just because it
hasn't caused a wreck yet.
I wish this subject had come up a year or two before it did!
To the 'old-timers' here, keep in mind that we don't all share your level of
experience. You may find this hard to believe, but I find this airplane to
be completely different than anything else I flew...T-craft, C-170, Aeronca
Sedan, Mini-Cab Hawk. I have an A&P, rebuilt 2 antiques and had about 280
hrs when my Piet was finished...all ancient history. If I were still 20, and
in the prime of my short flying experience, I have no doubt that my feelings
about the plane would be different. There are some here who are just now
learning to fly and have no tailwheel time at all... Some who have not
experienced the sink rate when the throttle is closed...Some who are
building for the first time...Some who have not felt the weight of a 200lb
passenger...Some who have not had their first emergency landing...
...I think cautionary advise is appropriate.
Gary Boothe
NX308MB
-----Original Message-----
From: owner-pietenpol-list-server@matronics.com
[mailto:owner-pietenpol-list-server@matronics.com] On Behalf Of William
Wynne
Sent: Saturday, March 22, 2014 7:16 AM
Subject: Pietenpol-List: W&B, Axle Loc., Cabanes and fuel lines
--> <WilliamTCA@aol.com>
Builders,
There are only four things in Piet building I would like to make builders
aware of, and let them choose to use if they wish:
1) I want to show people that it is easy to build and fly a Piet in the
published 15 -20" CG range, even if the engine is as light as an A-40 or as
heavy as an O-235, with pilot weights from 120-320 pounds. We did the
testing, I will assist builders with the math, it doesn't cost any more nor
take any more time to build a plane in CG.
2) I want builders to know that there are published locations for where to
locate the axle with and without brakes, and data on this directly from BHP.
You don't need to guess. This info is with the W&B articles. When building,
it doesn't cost anything to put the axle in a better spot, nor take any more
time.
3) I give examples of better ways of building the cabanes, making them more
like BHP did in the 1960s rather than the 1930s. The original plane had one
set of crossed wires and no diagonals. No one does that, I am only
suggesting leap frogging the 1930s light diagonals to the stronger 1960s
ones. Again, when building it doesn't take any more time nor cost more than
$5 more in up sized tubing.
4) I would like builders to be aware that a hard aluminum fuel line, run
from the tank to the firewall is likely to get severed, even in a very small
accident. A better option is using a braided steel jacketed flex line. The
material for this costs $20 more than the 5052 hard tubing. It is actually
easier to make, and does not require flaring tools.
------------------------------------------------------
That is it, it is the sum total of my advice to Piet builders. Note that I
am not telling anyone to take even another 5 hours to build a plane, and the
money I am speaking of is $25, maybe 1/400th of the cost of building a low
cost Piet.
---------------------------------------------------
Please note: I don't tell people what engine to use, what airfoil, what kind
of wheels, what cover their plane in, what color to paint it, how to paint
it nor how nor where to fly it. I don't have an opinion on 'what is a real
Piet' or any of that. It is very odd to me that a guy who tells people "who
the plane is for" or what engine to use, or that some kinds of covering are
'wrong' is not perceived as telling people what to do, but the four points I
bring up above, are sometimes perceived as "Telling people what kind of
plane they have to build".
I strongly hold that it is your plane, and you have a right to build it
anyway you want. I don't even care if you follow the four ideas above. All
I want is builders to be aware they exist, and the only people who I have
heartburn over are the people who claim that the data doesn't exist, it is
too much work to do correctly or it costs to much or somehow ruins the
spirit of fun flying to fly in the CG range. Again, those people are trying
to tell others what to do with their planes, I just want builders to
understand and choose for themselves.
---------------------------------------------------------
While some people hold that it is a "waste of time and money" to build a
Pietenpol with any type of modification, or adaption or even things like
brakes or electric start, It is my option that it is your time, and your
money to waste. I don't like being told what to do with my time and money, I
don't care what people choose to do with theirs.
Operative word in the last paragraph is Choose. That implies that the
builder got to read about the options, ask questions, hear about it and then
picked for himself.
The one thing I do think of as a colossal waste of money and time is
building a plane that is just OK, and 'works' and then flying it to Brodhead
and finding out that a guy who took the same time building his plane and
spent $25 more, can fly with a pilot that weighs 75 pounds more, land
slower, and fully use his brakes, and doesn't worry about a small mishap
dislodging his wing or rupturing a fuel line. My point is that each builder
can either choose to be the guy with the better plane or the guy looking at
it. It is a fee world, take your pick.-ww.
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=420823#420823
Message 10
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Was hoping to see options for rudder cable guides towards tail of plane. With steel
tube fuselage will need to weld a couple of tabs to accept a pulley, hardwood
guide, phenolic tube or sheet or whatever. What is common practice? If there
is such a thing.[/i]
--------
Paul Donahue
Started 8-3-12
do not archive
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=420827#420827
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| Subject: | Re: CG vs Wheels Location..emergency situation |
William,
I think that's a great idea. I think it would be very helpful for builders to
get an idea of what a certain set up may look like when it comes to Weight and
Balance time. This afternoon I will try to scan my W&B sheet I made up for my
Pilot's Manual and post it. It's nothing fancy and hand drawn, so no laughing!
:-)
Don Emch
NX899DE
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=420830#420830
Message 12
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| Subject: | Re: CG vs Wheels Location..emergency situation |
Don,
Would you include your fuselage length, wing LE position and axle location? This
information would be much appreciated.
Rick Schreiber
Valparaiso, IN
Sent from my iPad
On Mar 22, 2014, at 10:38 AM, "Don Emch" <EmchAir@aol.com> wrote:
>
> William,
>
> I think that's a great idea. I think it would be very helpful for builders to
get an idea of what a certain set up may look like when it comes to Weight and
Balance time. This afternoon I will try to scan my W&B sheet I made up for
my Pilot's Manual and post it. It's nothing fancy and hand drawn, so no laughing!
:-)
>
> Don Emch
> NX899DE
>
>
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p=420830#420830
>
>
>
>
>
>
>
>
>
>
Message 13
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| Subject: | Re: A Couple of Welding Questions |
Terry,
I just went over most of your questions with my EAA chapter here in the Houston
area; where were you? Never mind...
Since we don't know the vintage of your Smith torch, perhaps you should take it
to your local welding supply house, and have them take a look. If the torch
mixes gases within the handle - and not inside the tip itself - crush it in a
vise and start anew with a torch that only mixes in the tip. Why, you ask? My
best childhood friend lost a portion of his hand when a Smith torch from the
60's blew up while holding it - and it took him 2 years to regain 75% use of
the hand...
Assuming it's a tip - mixer, add check valves between the hoses and the torch handle
- they are about $20 ea. and will prevent gases from mixing within the hoses
and/or regulators.
Due to the ability of oil to migrate into anything and everything, and the possibility
of Oxygen and oil creating an explosion, everything on the torch should
be washed down with fresh clean Acetone. Lowe's has it for cheap.
If I were you, perhaps I'd even investigate having a pro clean the entire system
for me.
You haven't stated the size of your tanks, and there are numerous sizes available.
If they are the really large ones (can't remember the size) there could be
a demurrage charge against them without receipts stating ownership. Check into
that when you go to a welding supply house.
Generally, I tell my students and EAA guys that it's a lot cheaper to take the
tanks and refill them prior to expiration of certification than to get stuck spending
an extra $35 per tank to re-cert. So, know the date of your tanks and
act accordingly. Even if you throw away $20 in a full tank of gas, you're better
off than spending more to re-cert, and re-fill.
Just my $.02 and 40 years of experience...
--------
Tom Kreiner
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=420833#420833
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| Subject: | Fwd: Motor mount fittings |
Guys,
=C2-
It will be awhile before I need to cover but I would like to know how every
one covered this area around the motor mount brackets. The strips on each s
ide of the bracket is 1/4" tall so it seems like it would be hard to make t
he fabric around the bracket look good. Do you glue a piece of 1/4"=C2- w
ood around the top on the bracket to keep it on the same level?
=C2-
Thanks,
Keith Goff
=C2-
----- Original Message -----
From: "Goff Electric" <goffelectric@comcast.net>
Sent: Saturday, March 22, 2014 11:48:37 AM
Subject: Motor mount fittings
[image/jpeg:photo 1.JPG]
[image/jpeg:photo 2.JPG]
Sent from my iPhone
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| Subject: | Re: A Couple of Welding Questions |
You can use the bottles till empty safely. It's a matter of economics whether
it's a good idea or not, not safety.
Some places will charge you a prorate on the hydro cert date anyway, so no real
reason to not use till empty even if it will put you past the cert date. Welding
suppliers and user owned bottles is REALLY a random game.
The hoses are sort of nebulous. I've got OLD hoses that are still great, though
a little bit checked. I've got NEW ones that SUCK. Cracked BADLY and I threw
them away months after I got them. If you do decide they need replacement,
get the best american made ones you can find. The chinese ones just don't last
at all.
GREAT advice on the treatment of the torch and regulators. By the way, the regulators
are probably good and USUALLY ARE rebuildable and preferrable to, again,
imported ones. Most good welding suppliers will take them and forward to their
local rebuilder. I think Victors and Smiths have a lifetime warranty, which
means stuff that is now obsolete will get you half off retail at a place that
honors the warranty. Half off retail is usually a tad cheaper than you can
find online and helps your local supplier.
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=420835#420835
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| Subject: | Re: A Couple of Welding Questions |
Tom,
Are the tips interchangeable, or do I need new ones as well if it is the type you
mentioned?
Thanks again for your advice.
--------
Semper Fi,
Terry Hand
Athens, GA
USMC, USMCR, ATP
BVD DVD PDQ BBQ
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=420836#420836
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| Subject: | Re: CG vs Wheels Location..emergency situation |
I don't have all the exact data here, but hopefully somewhat useful.
NX2RN, built by Dick N, is a short wood fuse, wing moved back 4 1/2 inches, A65
plane.
The WB sheet he did showed the CG calculated at around 19.5 inches, with him in
the plane, he's maybe 10 or 20 lbs heavier than I. So I flew it without checking.
However, when it came time to teach my son to fly it, wasn't sure if it would be
in balance with him being 50 plus pounds lighter than I.
So I got GOOD digital race car scales, blocked the plane up level and checked it
all empirically, ie with us in the plane to be sure.
Turns out it was 19 inches with me, about 17.5 with Scott and VERY suprisingly
16.5 inches with ME in the FRONT cockpit. In other words, it showed to be safe
soloing from the front!
I really thought the plane was more finicky than it turned out to be.
Though it's not real stable (ie doesn't return to original position after an upset
- gust of wind, control input, etc - quickly), it does fly well and predictably.
Not an incredibly easy plane to learn to fly, it does handle a variety
of conditions well. Certainly handles more conditions than really needed, it's
a fun fly plane, not a reliable get you there plane.
It requires more headwork than pilot skills.
I think it's best to NOT have trim in this plane, as you can't afford to not be
constantly thinking about the condition of flight. It is a little like a jet,
predictable and fundamentally easy. If you find yourself in a bad situation,
the decision that got you there was (comparatively) long ago and you missed
it. You do really have to be ahead of this plane to fly it safely. Wouldn't
think that is the case at 60 mph...
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=420837#420837
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| Subject: | Re: cable guides |
Your choices are fairleads or pulleys. AC43-13 limits fairleads to an angle change
that I don't have at my fingertips but it's like 3 or 5 degrees. Pulleys
for anything else. AC 43-13 is not regulatory for homebuilts BUT it's where
Mike's Uncle Tony got a LOT of his information and those who blatantly disregard
it should rethink their life insurance options.
Fairleads can be built from almost any material that won't abrade the cables.
Hardwoods and plastic lead the choices. The easiest would be to call up your
favorite supply store and ask for Piper Cub split plastic ones. They are easily
replaced, pretty slippery, a bolt-on mount (like an Adel clamp without the
rubber cushion -- a plus for tab mounting) is available, and have a proven record
of working well with cables. I'm using them for the aileron cables within
the wings and the rudder cables within the fuselage. They're a little pricey
but ease of maintenance wins the battle.
Dave
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=420839#420839
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| Subject: | Cross strut size |
Can anyone tell me what size the cross struts are that are attached to the stiffeners?
John
--------
John Francis
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=420840#420840
Attachments:
http://forums.matronics.com//files/crossstruts_113.jpg
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| Subject: | W&B Spreadsheet (was CG vs Wheel Location..emergency situation) |
Pieters,
If I can get a couple of hours, I will post the Excel spreadsheet that I
made for calculating W&B on my Pietenpol. I'll need to modify it so that
each builder can input the "constants" of their airplane (Fuselage length,
wing position, etc), but once it is ready, people will be able to just plug
in their data and calculate the CG easily, as well as see the effects of
passenger weight, pilot weight, baggage compartment loading (if any) and
fuel burn.
William Wynne and I have had a few emails discussing such. As Gary Boothe
said, William is raising good points and taking a lot of flak for it.
Every pilot is supposed to know how to calculate weight & balance, and how
to use the W&B envelope provided with any certificated airplane to determine
whether or not their situation is inside the envelope. In my experience as
an instructor, few remember how (if they ever knew once they passed their
private pilot checkride). It is one of the things I do whenever I give a
Biennial Flight Review (BFR) - I tell the pilot we are going to take his
airplane, load the two of us, two friends of 210 and 165 lbs, and 100 lbs of
luggage on a 600 mile trip in the winter (heavier clothes) and ask him how
many fuel stops we'll need to make. If he doesn't start with the W&B
envelope we spend quite a bit of time on that before we ever get in the
airplane.
There are a lot of people now building Pietenpols that are not yet licensed
pilots, and have never had to develop proficiency in determining weight &
balance, nor do they necessarily understand why it is so critical. An
airplane with a center of gravity too far aft is simply uncontrollable, no
matter how skilled the pilot. You older hands (particularly those with
flying Pietenpols) don't need this information as much, but it never hurts
to review it.
I'll try to get that spreadsheet done in the next day or two. Of course,
then I'll have to figure out how to post a spreadsheet on Matronics, or some
kind of dropbox where people can download it.
Jack Phillips
NX899JP
Smith Mountain Lake, Virginia
-----Original Message-----
From: owner-pietenpol-list-server@matronics.com
[mailto:owner-pietenpol-list-server@matronics.com] On Behalf Of Rick
Sent: Saturday, March 22, 2014 11:49 AM
Subject: Re: Pietenpol-List: Re: CG vs Wheels Location..emergency situation
Don,
Would you include your fuselage length, wing LE position and axle location?
This information would be much appreciated.
Rick Schreiber
Valparaiso, IN
Sent from my iPad
On Mar 22, 2014, at 10:38 AM, "Don Emch" <EmchAir@aol.com> wrote:
>
> William,
>
> I think that's a great idea. I think it would be very helpful for
builders to get an idea of what a certain set up may look like when it comes
to Weight and Balance time. This afternoon I will try to scan my W&B sheet
I made up for my Pilot's Manual and post it. It's nothing fancy and hand
drawn, so no laughing! :-)
>
> Don Emch
> NX899DE
>
>
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p=420830#420830
>
>
>
>
>
>
>
>
>
>
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| Subject: | Fwd: Motor mount fittings |
Keith,
I modified the wooden strip that holds the fabric off the plywood to fit
over and around the engine mount brackets as shown below:
When the fabric went on, you could net tell where the engine mount bolts
were, as shown below:
Just make sure that you cover the bolt heads (and anything elese that the
fabric might chafe against) with pinked edge tape or a pinked edge patch to
protect the fabric. It's amazing to long alonside the fuselage in flight
and see how much drumming takes place with the fabric. If left
unreinforced, any chafing will quickly wear holes right through it.
Jack Phillips
NX899JP
Smith Mountain Lake, Virginia
_____
From: owner-pietenpol-list-server@matronics.com
[mailto:owner-pietenpol-list-server@matronics.com] On Behalf Of
goffelectric@comcast.net
Sent: Saturday, March 22, 2014 11:56 AM
Subject: Pietenpol-List: Fwd: Motor mount fittings
Guys,
It will be awhile before I need to cover but I would like to know how
everyone covered this area around the motor mount brackets. The strips on
each side of the bracket is 1/4" tall so it seems like it would be hard to
make the fabric around the bracket look good. Do you glue a piece of 1/4"
wood around the top on the bracket to keep it on the same level?
Thanks,
Keith Goff
_____
From: "Goff Electric" <goffelectric@comcast.net>
Sent: Saturday, March 22, 2014 11:48:37 AM
Subject: Motor mount fittings
[image/jpeg:photo 1.JPG]
[image/jpeg:photo 2.JPG]
Sent from my iPhone
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| Subject: | Re: Cross strut size |
It's on the plans. Look to the right. ;)
--------
Curt Merdan
Flower Mound, TX
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=420844#420844
Attachments:
http://forums.matronics.com//files/image_938.jpg
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| Subject: | Re: Cross strut size |
Thanks Curt.
--------
John Francis
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=420845#420845
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| Subject: | Re: CG vs Wheels Location..emergency situation |
Tools
That was a great assesment of the Piet. You do have to find the cruise rpm
and the decent rpm and the climb rpm. These are more important than any
trim controls. Then as you say stay ahead of the plane.
Also listen closely to Will Wynne, I am very grateful Will is posting here.
Dick N.
----- Original Message -----
From: "tools" <n0kkj@yahoo.com>
Sent: Saturday, March 22, 2014 11:34 AM
Subject: Pietenpol-List: Re: CG vs Wheels Location..emergency situation
>
> I don't have all the exact data here, but hopefully somewhat useful.
>
> NX2RN, built by Dick N, is a short wood fuse, wing moved back 4 1/2
> inches, A65 plane.
>
> The WB sheet he did showed the CG calculated at around 19.5 inches, with
> him in the plane, he's maybe 10 or 20 lbs heavier than I. So I flew it
> without checking.
>
> However, when it came time to teach my son to fly it, wasn't sure if it
> would be in balance with him being 50 plus pounds lighter than I.
>
> So I got GOOD digital race car scales, blocked the plane up level and
> checked it all empirically, ie with us in the plane to be sure.
>
> Turns out it was 19 inches with me, about 17.5 with Scott and VERY
> suprisingly 16.5 inches with ME in the FRONT cockpit. In other words, it
> showed to be safe soloing from the front!
>
> I really thought the plane was more finicky than it turned out to be.
>
> Though it's not real stable (ie doesn't return to original position after
> an upset - gust of wind, control input, etc - quickly), it does fly well
> and predictably. Not an incredibly easy plane to learn to fly, it does
> handle a variety of conditions well. Certainly handles more conditions
> than really needed, it's a fun fly plane, not a reliable get you there
> plane.
>
> It requires more headwork than pilot skills.
>
> I think it's best to NOT have trim in this plane, as you can't afford to
> not be constantly thinking about the condition of flight. It is a little
> like a jet, predictable and fundamentally easy. If you find yourself in a
> bad situation, the decision that got you there was (comparatively) long
> ago and you missed it. You do really have to be ahead of this plane to
> fly it safely. Wouldn't think that is the case at 60 mph...
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p=420837#420837
>
>
>
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| Subject: | Re: CG vs Wheels Location..emergency situation |
Ya, me too! Awesome critical thinking.
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=420848#420848
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| Subject: | Re: Cross strut size |
You're welcome.
--------
Curt Merdan
Flower Mound, TX
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=420850#420850
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| Subject: | Don Emch W&B Data, aka Cure for Insomnia |
Well just in case any of you are having a tough time falling asleep tonight....
or if you want to laugh at a very amateurish hand drawn Weight and Balance sheet....
here it is.
For quick background. Essentially it is a "plans built" (according to Don Emch,
Ha!) airframe. Long fuselage with plans built steel split axle gear. I followed
the plans the best I could with the exception of brakes, small tailwheel,
nose tank, slanting the cabanes back 3.5" and cheating slightly on the A-65
engine mount by extending it about 1". As far as I know that is about all I
did. (Hopefully I can still sit on the Top Curmudgeon Board). According to
my measurements here, my wing leading edge is 6" forward of the axle. Which if
you look at the plans and note that I moved the wing back 3.5" then you'll see
that the axle is located according to plans. I really think that moving the
wing back is key for both weight and balance and being able to keep the axle
at plans location while using brakes. A lot more is accomplished versus extending
the engine mount. My seat, baggage, and fuel "arms" were derived by actually
putting fuel, baggage and people in those locations while on the scales
and working the math backwards to get accurate arm lengths. A couple of scenarios
are given as samples in flight conditions too. You can see with me at about
185 lbs. and running the tank dry I approach the aft limit... but then I'll
probably have a few other things on my mind at that point.
Interestingly, It feels the nicest in flight when the C.G. is hovering around the
17" - 18" aft of leading edge area. I think that wing likes it there.
Don Emch
NX899DE
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=420853#420853
Attachments:
http://forums.matronics.com//files/piet_weight_and_balance_data_456.pdf
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| Subject: | Re: Don Emch W&B Data, aka Cure for Insomnia |
One more thing...
As far as the brakes go, they are just 5" drum brakes. They will kinda hold for
run up. A low run up while on pavement and a healthier run up if on grass.
I've never felt the need to use them on landing.
Don Emch
NX899DE
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=420854#420854
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| Subject: | Re: Fwd: Motor mount fittings |
Thanks jack, great explanation and pictures.
Keith
Sent from my iPhone
> On Mar 22, 2014, at 1:10 PM, "Jack Phillips" <jack@bedfordlandings.com> wr
ote:
>
> Keith,
>
> I modified the wooden strip that holds the fabric off the plywood to fit o
ver and around the engine mount brackets as shown below:
> <image003.jpg>
>
> When the fabric went on, you could net tell where the engine mount bolts w
ere, as shown below:
>
> <image004.jpg>
>
> Just make sure that you cover the bolt heads (and anything elese that the f
abric might chafe against) with pinked edge tape or a pinked edge patch to p
rotect the fabric. It=99s amazing to long alonside the fuselage in fl
ight and see how much drumming takes place with the fabric. If left unreinf
orced, any chafing will quickly wear holes right through it.
>
> Jack Phillips
> NX899JP
> Smith Mountain Lake, Virginia
>
> From: owner-pietenpol-list-server@matronics.com [mailto:owner-pietenpol-li
st-server@matronics.com] On Behalf Of goffelectric@comcast.net
> Sent: Saturday, March 22, 2014 11:56 AM
> To: Pietenpol List
> Subject: Pietenpol-List: Fwd: Motor mount fittings
>
>
>
> Guys,
>
> It will be awhile before I need to cover but I would like to know how ever
yone covered this area around the motor mount brackets. The strips on each s
ide of the bracket is 1/4" tall so it seems like it would be hard to make th
e fabric around the bracket look good. Do you glue a piece of 1/4" wood aro
und the top on the bracket to keep it on the same level?
>
> Thanks,
> Keith Goff
>
> From: "Goff Electric" <goffelectric@comcast.net>
> To: goffelectric@comcast.net
> Sent: Saturday, March 22, 2014 11:48:37 AM
> Subject: Motor mount fittings
>
>
>
>
>
> [image/jpeg:photo 1.JPG]
>
>
>
>
>
>
> [image/jpeg:photo 2.JPG]
>
>
>
>
> Sent from my iPhone
>
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| Subject: | Re: A Couple of Welding Questions |
Terry,
Generally, the tips will only fit a specific brand and/or series of torch. In
case you haven't looked at torches lately, there a large number of victor knock
offfs out there, but I dont know whether the tips are identical or if they fit.
My victor set is 30+ yrs old and it never fails me. The hoses lasted 25 years,
and it seems their life depends on how you care for them. On that note, if
your hoses aren't oily, cracked, crazed, whatever, they are probably OK.
Over the years i picked up every tip available for the torch including rosebud
and cutting torch on ebay or used tool stores.
As far as tanks gi, Tools is right, if your tank is full of gas its ok to keep
it full beyond cert date. On a purely economic level, I jot down the tank dates
and refill prior to expiration, whether theyre empty or full. I got burned with
the $70 to recert along with the $40 refill charge, and i dont want to spend
the extra for nothing. If the tank cert runs out at their shop, they recert
as their business expense, and you dont pay for it.
--------
Tom Kreiner
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=420857#420857
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| Subject: | Re: A Couple of Welding Questions |
Tom and Tools,
Many thanks for the information. I will take the torch over to the local welding
supply on Monday and let them give me the good or bad news.
Thanks again!
--------
Semper Fi,
Terry Hand
Athens, GA
USMC, USMCR, ATP
BVD DVD PDQ BBQ
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=420858#420858
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| Subject: | Re: Don Emch W&B Data, aka Cure for Insomnia |
Don,I have the jig now and in the process of figuring out how to make it 2 inches
wider. Gardiner
Sent from my iPad
> On Mar 22, 2014, at 3:21 PM, "Don Emch" <EmchAir@aol.com> wrote:
>
>
> Well just in case any of you are having a tough time falling asleep tonight....
or if you want to laugh at a very amateurish hand drawn Weight and Balance
sheet.... here it is.
>
> For quick background. Essentially it is a "plans built" (according to Don Emch,
Ha!) airframe. Long fuselage with plans built steel split axle gear. I
followed the plans the best I could with the exception of brakes, small tailwheel,
nose tank, slanting the cabanes back 3.5" and cheating slightly on the A-65
engine mount by extending it about 1". As far as I know that is about all
I did. (Hopefully I can still sit on the Top Curmudgeon Board). According to
my measurements here, my wing leading edge is 6" forward of the axle. Which
if you look at the plans and note that I moved the wing back 3.5" then you'll
see that the axle is located according to plans. I really think that moving
the wing back is key for both weight and balance and being able to keep the axle
at plans location while using brakes. A lot more is accomplished versus extending
the engine mount. My seat, baggage, and fuel "arms" were derived by actually
putting fuel, baggage and people in those loca!
> tions while on the scales and working the math backwards to get accurate arm
lengths. A couple of scenarios are given as samples in flight conditions too.
You can see with me at about 185 lbs. and running the tank dry I approach the
aft limit... but then I'll probably have a few other things on my mind at that
point.
>
> Interestingly, It feels the nicest in flight when the C.G. is hovering around
the 17" - 18" aft of leading edge area. I think that wing likes it there.
>
> Don Emch
> NX899DE
>
>
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p=420853#420853
>
>
>
>
> Attachments:
>
> http://forums.matronics.com//files/piet_weight_and_balance_data_456.pdf
>
>
>
>
>
>
>
Message 33
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| Subject: | Re: A Couple of Welding Questions |
I've seen shops go both ways on the recert thing. USUALLY taking them in early
does the trick.
It's one of those things, pretty sure I've gotten by once in a while because I
didn't mention the date at all... like argon a few weeks ago. Didn't get by with
it with CO2 at another shop a few months before that.
Believe it or not, simply how the bottle looks makes a huge difference. The guy
at the front desk wouldn't take a bottle once because it was owned by a company
now defunct... wouldn't hydro it, exchange it, nothing. And it was awful
rusty looking.
When at the dock exchanging a couple others, the guy asked about the one 02 bottle
I wasn't exchanging, told him the story. He said wire wheel it, paint it
blue and try again. I did, same guy, few months later didn't give it a second
glance. Weird.
So if one place gives you a hard time, try another.
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=420863#420863
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| Subject: | Re: Don Emch W&B Data, aka Cure for Insomnia |
Can you just go to the outside of the angle iron? Would that get it close to where
you wouldn't need to actually change the fixture?
Don Emch
NX899DE
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=420864#420864
Message 35
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| Subject: | Re: A Couple of Welding Questions |
I think that my biggest concern at this point is the torch itself. So, what brand
do you recommend?
Buehler? Buehler? Anyone? Anyone?
--------
Semper Fi,
Terry Hand
Athens, GA
USMC, USMCR, ATP
BVD DVD PDQ BBQ
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=420865#420865
Message 36
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| Subject: | Re: Don Emch W&B Data, aka Cure for Insomnia |
Thanks don, I will try that tomorrow, Gardiner
Sent from my iPad
> On Mar 22, 2014, at 6:08 PM, "Don Emch" <EmchAir@aol.com> wrote:
>
>
> Can you just go to the outside of the angle iron? Would that get it close to
where you wouldn't need to actually change the fixture?
>
> Don Emch
> NX899DE
>
>
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p=420864#420864
>
>
>
>
>
>
>
>
>
>
Message 37
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| Subject: | Re: CG vs Wheels Location |
--WW,=0A=0A"Your comments in the letter tell me you are making a mistake,
and do not know it."- =0APerhaps. However, my plane is quite similar to
Mike Cuy's plane. Same fuselage length, same engine, same fuel tank size, s
ame fuel tank location, etc., etc.-After talking to him and flying in his
plane, I-was confident in doing what he did as far as landing gear place
ment. =0A=0A"Bluntly, no one needs to move the axle backward."=0AI never sa
id the axel needs to be moved.=0A=0A"I could not tell from your website wha
t engine you are using, but if is lighter than a 235 Lycoming or you weigh
more than 110 pounds dressed, you are creating a plane that will have a ter
rible aft CG location."=0AI would venture a guess that there are hundreds o
f things that you could not tell about my plane,-solely from looking at m
y website. That would include all the things that may, in fact, render a ve
ry nice, as built, CG. =0A=0A"Consider ceasing to advise people on what is
OK on CG." =0AI'm not advising anyone. I was directly asked a question, my
answer was to explain what I did and why. =0A=0A"...but if you willfully ig
nore the content of my W&B data, you will regret it."=0AAgain, perhaps. I a
m not saying your intel. in not valid...as I stated in the original post, I
think it wise for everyone to have that documentation on hand; (You're wel
come) I just don't agree with the "Do it my way or else." feel of the comme
nt.=0A=0A"You offer a lot of DVD's for sale for a guy who is yet to fly his
plane."=0AOnly 8 DVDs. All covering how I am constructing my plane. It's a
documentary series. If you would actually like to view one or more of my D
VDs, I can hook you up.=0A=0AI appreciate your comments as much as I do com
ments and suggestions by most on this list. I am very close to completion o
f my plane. So far I am pleased with the outcome and confident in my proces
ses. When finished, flown and proven, (or not) I intend to disclose a full
debrief on the entire process...the good, the bad, the ugly. The right, the
wrong, the better, the worse, etc.- =0A=0AIf God is your co-pilot...swit
ch seats.=0AMichael Perez=0APietenpol HINT Videos=0AKaretaker Aero=0Ahttp:/
/www.karetakeraero.com/
Message 38
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| Subject: | Re: A Couple of Welding Questions |
Its been my experience the victor would get my recommendation. Accessories, tips
etc. are readily available. Please stay away from the Asian crap. Harbor
freight is good for many tools(including mig welders) but I've tried using their
torches owned by a friend and they're trash.
Glen
Sent from my iPhone
> On Mar 22, 2014, at 3:10 PM, "jarheadpilot82" <jarheadpilot82@hotmail.com> wrote:
>
>
> I think that my biggest concern at this point is the torch itself. So, what brand
do you recommend?
>
> Buehler? Buehler? Anyone? Anyone?
>
> --------
> Semper Fi,
>
> Terry Hand
> Athens, GA
>
> USMC, USMCR, ATP
> BVD DVD PDQ BBQ
>
>
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p=420865#420865
>
>
>
>
>
>
>
>
>
>
Message 39
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| Subject: | Re: running lean |
Timed the fuel flow in the 3-point attitude today. Filled a quart container in
21 seconds, so it's not fuel flow.
Adjusted the damper blade in the air box to shut tightly when carb heat is off,
then warmed up the engine and ran it up. It still will not take throttle above
1500 RPM without carb heat on, and will not run up to full static power without
it. So it's not the carb heat box.
I'm thinking more and more that it's an obstructed passageway or something in the
carb. I'm rebuilding a core Stromberg and when it's ready, I'll swap it out
with the one that's on the engine and we'll see if that's it. Meanwhile, I'm
encouraged that the engine starts very readily and idles well. As soon as it's
running right, it will be ready for annual.
--------
Oscar Zuniga
Medford, OR
Air Camper NX41CC "Scout"
A75 power
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=420873#420873
Message 40
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| Subject: | Re: CG vs Wheels Location |
I am sure that of the over 1,000 words marketing your DVDs on your HINT
videos page, the 30 that are tacked on to the end of the second paragraph:
"These DVDs are a video log of the way I am building my plane and for
entertainment only. None of the changes or modifications have been flight
tested or proven"
....are fully read and understood by everyone purchasing your videos. Your
customers assuredly have full realization of the fact that this is the
first airplane you have ever built, that you are not an engineer, nor are
you a pilot, and that these DVDs are not instructing them on how they
should build their airplane; that this 12 and 3/4 hour, 8 DVD set that
costs $70 more than the plans to build the airplane itself is solely
intended as a documentary for entertainment purposes. Uh huh....
Ryan
On Sat, Mar 22, 2014 at 5:39 PM, Michael Perez <speedbrake@sbcglobal.net>wrote:
> -WW,
>
<snip>
> "Consider ceasing to advise people on what is OK on CG."
> I'm not advising anyone. I was directly asked a question, my answer was to
> explain what I did and why.
>
<snip>
> "You offer a lot of DVD's for sale for a guy who is yet to fly his plane."
> Only 8 DVDs. All covering how I am constructing my plane. It's a
> documentary series. If you would actually like to view one or more of my
> DVDs, I can hook you up.
>
> I appreciate your comments as much as I do comments and suggestions by
> most on this list. I am very close to completion of my plane. So far I am
> pleased with the outcome and confident in my processes. When finished,
> flown and proven, (or not) I intend to disclose a full debrief on the
> entire process...the good, the bad, the ugly. The right, the wrong, the
> better, the worse, etc.
>
> <deleted>
> Michael Perez
> Pietenpol HINT Videos
> Karetaker Aero
> http://www.karetakeraero.com/
>
Message 41
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| Subject: | Motor mount fittings |
Here is another idea=0A=0ASantiago
Message 42
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| Subject: | Re: CG vs Wheels Location..emergency situation |
Attached is the spreadsheet I use for calculating CG on NX18235. It is an
Excel 2007 file.
I can enter any combination of weights and it spits out the CG location.
Interesting to see how little the CG changes with varying fuel and passenger
weights.
The numbers briefly:
Empty wt. 616 lbs
Cabanes angled back approx. 3 1/2" from vertical
Axle located 6 1/2" aft of the leading edge. This works well, NX18235 was
built without brakes.
It should be noted that this spreadsheet is unique for NX18235 only.
Greg Cardinal
Minneapolis
----- Original Message -----
From: "William Wynne" <WilliamTCA@aol.com>
Sent: Saturday, March 22, 2014 9:52 AM
Subject: Pietenpol-List: Re: CG vs Wheels Location..emergency situation
>
> Dan,
>
> Here is a positive suggestion:
>
> What don't you, Don and Mike Cuy, who all have flying planes that you
> like, Take a few minutes to walk out to your planes, get the weight and
> balance form out and type it in here, do I can all it to the data base we
> have for planes. Please include your axle and tailwheel location, and your
> pilot weight. If you guys like your planes, then share the data with
> everyone and let them directly copy your set up if they choose to. Brian
> sent in a lot of data, but I need to know the weights to put it in the
> data base.
>
> Jack Phillips sent me an email saying his plane is actually in the CG
> range with his pilot weight and set up, It is useful to others to pick
> which path to follow if we can get it in the data set.
>
> If you don't like the numerical information, just ignore it. A new builder
> doesn't need to understand every line that Chris and Brian wrote in. I
> will do the math for them, it is not an issue, I know you guys as pilots
> can do weight and balance calculations, don't make it sound hard to new
> guys, it is a simple format with 6th grade math. I don't think flying
> around out of CG adds to the romance of flight, nor do I see how having a
> better fuel line ruins every sunset flight.-ww.
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p=420825#420825
>
>
>
---
This email is free from viruses and malware because avast! Antivirus protection
is active.
http://www.avast.com
Message 43
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| Subject: | Re: running lean |
with carb heat off-the engine is fuel starving. carb heat changes that. n
ow how do you fix that?? overhaul the carb. im assuming that you have check
ed the mag timing..i had this problem on an o200 on my mong sport. I never
figured out what was wrong but sent the carb for overhaul. they found nothi
ng wrong but when I got the carb back and installed the motor ran great..so
if timing is good compression good fuel to the carb adequqte then that lea
ves the carb, if you put the plane in a level flight attitude does it make
a difference??=0A=0Ajim=0A=0A=0A=0AOn Saturday, March 22, 2014 8:28 PM, tai
ldrags <taildrags@hotmail.com> wrote:=0A =0A--> Pietenpol-List message pos
ted by: "taildrags" <taildrags@hotmail.com>=0A=0ATimed the fuel flow in the
3-point attitude today.- Filled a quart container in 21 seconds, so it's
not fuel flow.=0A=0AAdjusted the damper blade in the air box to shut tight
ly when carb heat is off, then warmed up the engine and ran it up.- It st
ill will not take throttle above 1500 RPM without carb heat on, and will no
t run up to full static power without it.- So it's not the carb heat box.
=0A=0AI'm thinking more and more that it's an obstructed passageway or some
thing in the carb.- I'm rebuilding a core Stromberg and when it's ready,
I'll swap it out with the one that's on the engine and we'll see if that's
it.- Meanwhile, I'm encouraged that the engine starts very readily and id
les well.- As soon as it's running right, it will be ready for annual.=0A
=0A--------=0AOscar Zuniga=0AMedford, OR=0AAir Camper NX41CC "Scout&qu
ot;=0AA75 power=0A=0A=0A=0A=0ARead this topic online here:=0A=0Ahttp://foru
===============
Message 44
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| Subject: | Re: CG vs Wheels Location..emergency situation |
Donna,
Please save this for me.
Your Lover!
Sent from my iPad
> On Mar 22, 2014, at 7:46 PM, "Greg Cardinal" <gcardinal@comcast.net> wrote:
>
> Attached is the spreadsheet I use for calculating CG on NX18235. It is an Excel
2007 file.
> I can enter any combination of weights and it spits out the CG location. Interesting
to see how little the CG changes with varying fuel and passenger weights.
>
> The numbers briefly:
> Empty wt. 616 lbs
> Cabanes angled back approx. 3 1/2" from vertical
> Axle located 6 1/2" aft of the leading edge. This works well, NX18235 was built
without brakes.
>
> It should be noted that this spreadsheet is unique for NX18235 only.
>
> Greg Cardinal
> Minneapolis
>
> ----- Original Message ----- From: "William Wynne" <WilliamTCA@aol.com>
> To: <pietenpol-list@matronics.com>
> Sent: Saturday, March 22, 2014 9:52 AM
> Subject: Pietenpol-List: Re: CG vs Wheels Location..emergency situation
>
>
>>
>> Dan,
>>
>> Here is a positive suggestion:
>>
>> What don't you, Don and Mike Cuy, who all have flying planes that you like,
Take a few minutes to walk out to your planes, get the weight and balance form
out and type it in here, do I can all it to the data base we have for planes.
Please include your axle and tailwheel location, and your pilot weight. If you
guys like your planes, then share the data with everyone and let them directly
copy your set up if they choose to. Brian sent in a lot of data, but I need
to know the weights to put it in the data base.
>>
>> Jack Phillips sent me an email saying his plane is actually in the CG range
with his pilot weight and set up, It is useful to others to pick which path to
follow if we can get it in the data set.
>>
>> If you don't like the numerical information, just ignore it. A new builder doesn't
need to understand every line that Chris and Brian wrote in. I will do
the math for them, it is not an issue, I know you guys as pilots can do weight
and balance calculations, don't make it sound hard to new guys, it is a simple
format with 6th grade math. I don't think flying around out of CG adds to the
romance of flight, nor do I see how having a better fuel line ruins every sunset
flight.-ww.
>>
>>
>>
>>
>> Read this topic online here:
>>
>> http://forums.matronics.com/viewtopic.php?p=420825#420825
>
>
> ---
> This email is free from viruses and malware because avast! Antivirus protection
is active.
> http://www.avast.com
> <NX18235 CG.xlsx>
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