Today's Message Index:
----------------------
1. 09:16 AM - Re: Cobra Torches... (taildrags)
2. 09:23 AM - Re: How to figure the volume of your center section fuel tank (taildrags)
3. 12:21 PM - Re: Re: Cobra Torches... (Ray Krause)
4. 01:34 PM - Re: Feb 20 to 24, hangar gathering, doing "stuff", Cha (pringljo)
5. 03:49 PM - Re: Cutting 4130 (Jerry Dotson)
6. 04:20 PM - Re: Cobra Torches... (Jerry Dotson)
7. 08:02 PM - Scout's got wings (taildrags)
8. 08:12 PM - Re: Re: Cobra Torches... (John Core)
9. 08:12 PM - Re: Scout's got wings (Ray Krause)
10. 08:57 PM - Re: Feb 20 to 24, hangar gathering, doing "stuff", Cha (tools)
11. 09:04 PM - Re: Cobra Torches... (tools)
Message 1
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| Subject: | Re: Cobra Torches... |
Ray; your reply about making the torch work look easy should have been addressed
to "tools", not me. I wouldn't know a Cobra torch from a Cobra CB radio.
--------
Oscar Zuniga
Medford, OR
Air Camper NX41CC "Scout"
A75 power
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=418360#418360
Message 2
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| Subject: | Re: How to figure the volume of your center section fuel |
tank
Well, it looks like I'm in good company here. When I had the fuel tank out of
my airplane years ago, I wanted to determine just how much fuel it would hold
and I did the gallon jug thing too. Funny thing is, I had the bright idea of
marking the float rod (I have a nose tank with the J-3 style rod and float indicator)-
and when I started pouring in the first jug of water, I noticed that
Corky had already filed some shallow but clear marks onto the rod at 1 gallon
increments. Well, OK, but I was already set up to do it so I went ahead and checked
Corky's work. Why? ;o)
The marks on the float rod are not distinct enough to see from the cockpit, but
they are helpful when you pull up to the fuel pump because you already have a
good idea of how many gallons it'll take to top it off without spilling avgas
over the cowling. Most of the time ;o)
My wife is always telling me that I can't just take her word for anything, I've
got to check things out for myself. Maybe she's right... I'll have to check
that out.
--------
Oscar Zuniga
Medford, OR
Air Camper NX41CC "Scout"
A75 power
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=418362#418362
Message 3
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| Subject: | Re: Cobra Torches... |
Thanks! This has been a great learning experience, just asking for user's opinion.
That's what so great about this forum.
Thanks again,
Ray Krause
Sent from my iPad
> On Feb 7, 2014, at 8:57 PM, glenschweizer@yahoo.com wrote:
>
>
> Hi Ray
> When welding anything,the strength of that weld is going to depend on many factors.
The heat has to be suficient to melt all material to a temp
> Witch allows them to flow into one another(100 percent penetration). Lack of
porosity is also critical. That is controlled with proper gas regulation and
position within the flame cone where the. Welding takes place. The low volume
torches might do very well for thinner material but maybe not so well on thicker
stuff.
> When you. Test your welds the material welded should break before the weld after
thAt. Cut or file the weld so that you can do a magnified inspection of your
welds. Short of. X-ray that's been the most reliable method I've found to
really study them damned welds. Practice inspect practice practice
> Sent from my iPhone
>
>> On Feb 7, 2014, at 8:26 PM, Ray Krause <raykrause@frontiernet.net> wrote:
>>
>>
>> Oscar,
>>
>> Thanks for your opinion, which I respect highly. I did buy a kit of the Cobra
torches because, as you said, they make it look easy. When he welded the 4130
for me, I took it home and beat on it a little with the hammer, it did not
come apart. Tomorrow I will bisect it and see what the welds look like on the
inside. The mild steel he welded had good penetration, but it was thin. I will
try some .090 and see how it works. Not sure my regulators will deliver 4PSI.
It is all research! My thought was that the Cobra would be about the same cost
as getting all the setup for the smaller standard torches. But if I have to
get new regulators, I will be spending even more money! Oh well, it's nothing
money can't fix!
>>
>> Thanks,
>>
>> Ray Krause
>>
>> Sent from my iPad
>>
>>> On Feb 7, 2014, at 8:16 AM, "tools" <n0kkj@yahoo.com> wrote:
>>>
>>>
>>> These things are really controversial... However, I like mine.
>>>
>>> I haven't really figured out how to use them correctly though. Like everything,
the demos are a bit misleading, but only in they make it seem easier than
it is. However, they're CLEARLY doing it! And I really believe it'll do things
a regular OA torch won't (though someone REALLY skilled could prove that
wrong I suppose).
>>>
>>> Like all OA sets, super versatile. I did weld some 4130 once early on and
made the MOST BEAUTIFUL looking welds ever... then tried some testing on them.
Turned out there was NO PENETRATION at all. Really weird.
>>>
>>> So, while I also recommend them, I would also recommend really spending some
time with them until you really figure them out. Like ALL tools, they require
skill. There's nothing magic about them. I think most of the naysayers are
folks who are good at OTHER OA torches and figure if they can't make these work,
they're smoke and mirrors. When it's probably more a case of they just don't
know how to make THESE torches work.
>>>
>>> They really are super nice guys who will do their level best to get you going.
I also recommend good regulators that'll do well at lower levels. Like most
chinese stuff, it's a matter of hit and miss, and longevity. Good regulators
out of the gate will most likely save a lot of frustration.
>>>
>>>
>>>
>>>
>>> Read this topic online here:
>>>
>>> http://forums.matronics.com/viewtopic.php?p=418282#418282
>
>
>
>
>
Message 4
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| Subject: | Re: Feb 20 to 24, hangar gathering, doing "stuff", Cha |
I would also like to come up for at least Saturday. I don't have anything specific
to work on, but I always enjoy hanging out with Piet folks, and learn a lot
by watching others.
Can you fill me in on driving directions? Also, do I understand that if I bring
some 9mm ammo, I might get to burn it up?
--------
Joe Pringle
Atlanta, GA
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=418375#418375
Message 5
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| Subject: | Re: Cutting 4130 |
Mike I have never timed it but solo and full gas about 1140# gross I feel sure
it will do around 1000 FPM. I put the big engine on to get out of my 1300 runway
comfortable. I climb at 55 for about 10 seconds on takeoff then nose over to
70 for good cooling. At 2300 rpm it will do about 95 but I never go there because
it ain't right to fly a Piet like that. Most(98%) of the time around 2000
@ 72. The picture was shot when I was doing 65 climbing out from home.
--------
Jerry Dotson
First flight June 16,2012
Flying in phase 2
Lycoming O-235 C2C
Jay Anderson CloudCars prop 76 X 44
do not archive
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=418382#418382
Attachments:
http://forums.matronics.com//files/a28_196.jpg
Message 6
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| Subject: | Re: Cobra Torches... |
I have never had a Cobra torch in my hand but would like to comment anyway. I have
a Smith Airline torch that was my Dad's. He welded engine mounts for North
American during WWII, then engine mounts and landing gear for Luscombe and Swift.
My opinion of quality welds depends mostly with the skill of the person with
the torch in their hand. I did all my Piet welding with the Smith except the
engine mount just for nostalgia sake. My son welded the mount with my Miller
330 tig machine.
The idea that the Cobra is hotter than a regular torch is advertising BS. Fuel/oxygen
ratio determines flame temp. All that said I don't claim to be an expert........just
seen a lot of welds. There is absolutely no substitute for a good
set of regulators that hold a setting. Victor 2 stage is my favorite but pricey.
Notice how many tips are there in the picture. Having the right size tip makes
you look better than you really are!
--------
Jerry Dotson
First flight June 16,2012
Flying in phase 2
Lycoming O-235 C2C
Jay Anderson CloudCars prop 76 X 44
do not archive
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=418385#418385
Attachments:
http://forums.matronics.com//files/a14_179.jpg
Message 7
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| Subject: | Scout's got wings |
Today was the day.... hung the wings. The last time the wings were on the airplane
was December 2012, when Steve Dortch, John Kuhfahl, Norris Warner, Craig
Wall, my brother David, and a cast of extras all helped me take the airplane apart
and load it into the big Ryder truck for the trip from TX to Oregon. Now
it's back together with all new wing and strut attach hardware and I just need
to reconnect the control cables and replace the wing gap fairings and the airframe
will be whole again.
The list of to-do items is getting shorter. I should be able to put fuel in it
in a few more weekends. Got a fishing trip up Jake's way the weekend after next
for some winter steelhead at Grays Harbor, WA, but that's just a minor distraction
;o)
--------
Oscar Zuniga
Medford, OR
Air Camper NX41CC "Scout"
A75 power
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=418392#418392
Attachments:
http://forums.matronics.com//files/img_0611_859.jpg
Message 8
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| Subject: | Re: Cobra Torches... |
Are these Cobra torches simlar to the Henrob torches?=0A=0A=0A=0A=0AOn Satu
rday, February 8, 2014 7:26 PM, Jerry Dotson <jdotson@centurylink.net> wrot
urylink.net>=0A=0AI have never had a Cobra torch in my hand but would like
to comment anyway. I have a Smith Airline torch that was my Dad's. He welde
d engine mounts for North American during WWII, then engine mounts and land
ing gear for Luscombe and Swift. My opinion of quality welds depends mostly
with the skill of the person with the torch in their hand. I did all my Pi
et welding with the Smith except the engine mount just for nostalgia sake.
My son welded the mount with my Miller 330 tig machine.=0AThe idea that the
Cobra is hotter than a regular torch is advertising BS. Fuel/oxygen ratio
determines flame temp. All that said I don't claim to be an expert........j
ust seen a lot of welds. There is absolutely no substitute for a good set o
f regulators that hold a setting. Victor 2 stage is my favorite but pricey.
=0A- Notice how many tips are there in the picture. Having the right size
tip makes you look better than you really are!=0A=0A--------=0AJerry Dotso
n=0A=0AFirst flight June 16,2012=0AFlying in phase 2=0ALycoming O-235 C2C
=0AJay Anderson CloudCars prop 76 X 44=0Ado not archive=0A=0A=0A=0A=0ARead
this topic online here:=0A=0Ahttp://forums.matronics.com/viewtopic.php?p=
418385#418385=0A=0A=0A=0A=0AAttachments: =0A=0Ahttp://forums.matronics.com/
=
Message 9
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| Subject: | Re: Scout's got wings |
Looks like a bright sunny day up there in Oregon! Nice day to give that ol' Bird
dome wings. Good work.
Ray Krause
Sent from my iPad
> On Feb 8, 2014, at 8:01 PM, "taildrags" <taildrags@hotmail.com> wrote:
>
>
> Today was the day.... hung the wings. The last time the wings were on the airplane
was December 2012, when Steve Dortch, John Kuhfahl, Norris Warner, Craig
Wall, my brother David, and a cast of extras all helped me take the airplane
apart and load it into the big Ryder truck for the trip from TX to Oregon. Now
it's back together with all new wing and strut attach hardware and I just need
to reconnect the control cables and replace the wing gap fairings and the
airframe will be whole again.
>
> The list of to-do items is getting shorter. I should be able to put fuel in
it in a few more weekends. Got a fishing trip up Jake's way the weekend after
next for some winter steelhead at Grays Harbor, WA, but that's just a minor distraction
;o)
>
> --------
> Oscar Zuniga
> Medford, OR
> Air Camper NX41CC "Scout"
> A75 power
>
>
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p=418392#418392
>
>
>
>
> Attachments:
>
> http://forums.matronics.com//files/img_0611_859.jpg
>
>
>
>
>
>
>
Message 10
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| Subject: | Re: Feb 20 to 24, hangar gathering, doing "stuff", Cha |
The answer to your second question... yes. At a pretty good pace.
The first question, the formal addy is 335 Castlerock Ln, Chickamauga GA 30707.
Informally, the closest exit off I 75 is Battlefield. The closest exit off I 59
is Trenton. Off I 24 is tougher, Broad Street in Chattanooga TN...
Basically, there's Chickamauga National Battlefield Park. Downtown Chickamauga
is about 3 miles south of that, on Highway 27. Three more miles south of Chickamauga
on Highway 341 is where I live. The intersection of HW 341 and Bonds
Rd. You can only go west. About 1/2 mile from there is a blue street sign for
Castlerock Ln. you can only go north. At the end of that, about 1500 feet,
is the place.
Call from anywhere, we'll dispatch you in, 423 580 1383, or 423 596 7770.
Look forward to meeting you!
Tools
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=418398#418398
Message 11
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| Subject: | Re: Cobra Torches... |
Exactly the same. Also known as at least one other propietary name...
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=418399#418399
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