Hi All,

One way might be to build several hundred thousand pop-pop submarines and send
them out to suck the oil up and burn it. Does anybody know Tony Hayward's email
address so I can invite him to join the group?

Old Frank

 

Oh yea!! A self fueling pop-pop boat!!!  Great idea!! :-)   Ron (FoMo) --- On Mon, 6/14/10, frankmcneilll <frankmcneilll@gmail.com> wrote: From: frankmcneilll <frankmcneilll@gmail.com> Subject: [pop-pop-steamboats] How Will BP handle an Oil Spill? To: pop-pop-steamboats@yahoogroups.com Date: Monday, June 14, 2010, 1:00 PM Hi All, One way might be to build several hundred thousand pop-pop submarines and send them out to suck the oil up and burn it. Does anybody know Tony Hayward's email address so I can invite him to join the group? Old Frank ------------------------------------ Yahoo! Groups Links <*> To visit your group on the web, go to:     http://groups.yahoo.com/group/pop-pop-steamboats/ <*> Your email settings:     Individual Email | Traditional <*> To change settings online go to:     http://groups.yahoo.com/group/pop-pop-steamboats/join     (Yahoo! ID required) <*> To change settings via email:     pop-pop-steamboats-digest@yahoogroups.com     pop-pop-steamboats-fullfeatured@yahoogroups.com <*> To unsubscribe from this group, send an email to:     pop-pop-steamboats-unsubscribe@yahoogroups.com <*> Your use of Yahoo! Groups is subject to:     http://docs.yahoo.com/info/terms/

The new home page picture shows the last frame of a slide show of the oil spill
location. I believe it indicates how BP plans to handle the Gulf Oil Spill by
waiting for the Gulf Stream to move it out of the Gulf of Mexico to a location
where it will be known as "The Iceland Oil Spill."

--- In pop-pop-steamboats@yahoogroups.com, Rob Wood <rwood@...> wrote:
>
> OK, I'm in! Where do we start? Here's a map. (Click the play button.)
>
> http://news.bbc.co.uk/2/hi/world/us_and_canada/10309001.stm
>
> Rob
>
>
> On 6/14/2010 8:15 AM, Ron Hunt wrote:
> >
> > Oh yea!! A self fueling pop-pop boat!!!  Great idea!! :-)
> > Ron (FoMo)
> >
> > --- On *Mon, 6/14/10, frankmcneilll /<frankmcneilll@...>/* wrote:
> >
> >
> >     From: frankmcneilll <frankmcneilll@...>
> >     Subject: [pop-pop-steamboats] How Will BP handle an Oil Spill?
> >     To: pop-pop-steamboats@yahoogroups.com
> >     Date: Monday, June 14, 2010, 1:00 PM
> >
> >     Hi All,
> >
> >     One way might be to build several hundred thousand pop-pop
> >     submarines and send them out to suck the oil up and burn it. Does
> >     anybody know Tony Hayward's email address so I can invite him to
> >     join the group?
> >
> >     Old Frank
> >
> >
> >
> >
> >
> >
> >
> >     ------------------------------------
> >
> >     Yahoo! Groups Links
> >
> >
> >         (Yahoo! ID required)
> >
> >
> >     pop-pop-steamboats-fullfeatured@yahoogroups.com
> >    
<http://us.mc1804.mail.yahoo.com/mc/compose?to=pop-pop-steamboats-fullfeatured@y\
ahoogroups.com>
> >
> >
> >
>
>
> --
> Rob Wood
> /Special Projects Director/
> HyperGold Web Services <http://www.hypergold.com>
> 650-756-2214
> email: rwood@... <mailto:rwood@...>
>

Hi All,

The previous topic was getting boring so I found a picture of ACW steamboats
powered by the same stuff that will indirectly power a new generation of
electric cars and trucks when gasoline refined from petroleum oil has become
something people read about in history books.

Old Frank

Yes, but without the provision for reduced CO2 emission described in an article
at http://tinyurl.com/23nyy9d

--- In pop-pop-steamboats@yahoogroups.com, P M <lordbthry@...> wrote:
>
> They were using hydrogen as fuel on those steamers???
>
> --- On Fri, 6/18/10, frankmcneilll <frankmcneilll@...> wrote:
>
> From: frankmcneilll <frankmcneilll@...>
> Subject: [pop-pop-steamboats] Back to the Future
> To: pop-pop-steamboats@yahoogroups.com
> Date: Friday, June 18, 2010, 6:55 PM
>
>
>
>
>
>
>
>  
>
>
>
>
>
>
>
>
>
>       Hi All,
>
>
>
> The previous topic was getting boring so I found a picture of ACW steamboats
powered by the same stuff that will indirectly power a new generation of
electric cars and trucks when gasoline refined from petroleum oil has become
something people read about in history books.
>
>
>
> Old Frank
>

Have any of you played with pulse jets?

Doesn't run long but interesting video.

http://www.youtube.com/user/nortonroad#p/u/59/AePLpM5SnqE

Hi Daryl,

It does look like something that could be used for gravity assisted flights
going straight down.

--- In pop-pop-steamboats@yahoogroups.com, "darylcanada73" <darylcanada73@...>
wrote:
>
> Have any of you played with pulse jets?
>
> Doesn't run long but interesting video.
>
> http://www.youtube.com/user/nortonroad#p/u/59/AePLpM5SnqE
>

 

They were using hydrogen as fuel on those steamers??? --- On Fri, 6/18/10, frankmcneilll <frankmcneilll@gmail.com> wrote: From: frankmcneilll <frankmcneilll@gmail.com> Subject: [pop-pop-steamboats] Back to the Future To: pop-pop-steamboats@yahoogroups.com Date: Friday, June 18, 2010, 6:55 PM   Hi All, The previous topic was getting boring so I found a picture of ACW steamboats powered by the same stuff that will indirectly power a new generation of electric cars and trucks when gasoline refined from petroleum oil has become something people read about in history books. Old Frank

Isn't that what Pegasus called his....ahhh....ummmm...weapon?

--- In pop-pop-steamboats@yahoogroups.com, Rob Wood <rwood@...> wrote:
>
> Have any of you heard of a Pegasus Unit?
>
> Rob
>
> On 6/18/2010 1:53 PM, P M wrote:
> >
> > They were using hydrogen as fuel on those steamers???
> >
> > --- On *Fri, 6/18/10, frankmcneilll /<frankmcneilll@...>/* wrote:
> >
> >
> >     From: frankmcneilll <frankmcneilll@...>
> >     Subject: [pop-pop-steamboats] Back to the Future
> >     To: pop-pop-steamboats@yahoogroups.com
> >     Date: Friday, June 18, 2010, 6:55 PM
> >
> >     Hi All,
> >
> >     The previous topic was getting boring so I found a picture of ACW
> >     steamboats powered by the same stuff that will indirectly power a
> >     new generation of electric cars and trucks when gasoline refined
> >     from petroleum oil has become something people read about in
> >     history books.
> >
> >     Old Frank
> >
> >
> >
>
> --
> Rob Wood
> /Special Projects Director/
> HyperGold Web Services <http://www.hypergold.com>
> 650-756-2214
> email: rwood@... <mailto:rwood@...>
>

I made my first pop-pop engine this weekend.  The engine has a round diaphragm. 
I hammer formed sheet copper to form the boiler, and the diaphragm is 0.005 inch
thick brass.  The engine has two tubes made from .375 inch OD copper-nickel
brake line.  All components were soft soldered together.  To test the engine, I
converted a plastic food storage dish into a boat and used two rubber grommets
to seal the holes for the tubes.  On the first voyage, the boat ran very good
for about 40 minutes.   I really enjoyed this project, and I look forward to
improving my design.

Thanks to everyone for the information on this site.

Charles

Hi Charles,

A 40-minute running time might be some kind of endurance record. This will need
verification by Daryl, but my recollection of pop-pop boats I played with as a
kid is that 40-seconds was about it. By that time my little boats were usually
stuck in weeds on the opposite side of the creek where efforts to retrieve them
with a throw-line usually sank them instead.

Best wishes, Frank

--- In pop-pop-steamboats@yahoogroups.com, charleswclarke@... wrote:
>
> I made my first pop-pop engine this weekend.  The engine has a round
diaphragm.  I hammer formed sheet copper to form the boiler, and the diaphragm
is 0.005 inch thick brass.  The engine has two tubes made from .375 inch OD
copper-nickel brake line.  All components were soft soldered together.  To test
the engine, I converted a plastic food storage dish into a boat and used two
rubber grommets to seal the holes for the tubes.  On the first voyage, the boat
ran very good for about 40 minutes.   I really enjoyed this project, and I look
forward to improving my design.
>
> Thanks to everyone for the information on this site.
>
> Charles
>

Lot of pulse jet stuff on youtube (incuding German V1 maintaince videos). I
haven't seen a simple pulse jet setup that will operate in a horozontal
position. I had a juice can engine like below but in testing the hole got a
little too large to operate well. I need to redo the hole and see if I can make
it long running. I started out with a smaller hole than in the vodeo and kept
enlarging it. Starting off with a too small of a hole resulted with "chuff!",
and the can jumping up in the air when the bottom was instantly rounded due to
te high internal pressure.

http://www.youtube.com/watch?v=j9y0gN8cOCo
http://www.youtube.com/watch?v=Q4m1VA4XgAY
http://www.youtube.com/watch?v=Melo332UCME
http://www.youtube.com/watch?v=5U-grFuXZ9U
http://www.youtube.com/watch?v=tjS8btFb9RA

--- In pop-pop-steamboats@yahoogroups.com, "darylcanada73" <darylcanada73@...>
wrote:
>
> Have any of you played with pulse jets?
>
> Doesn't run long but interesting video.
>
> http://www.youtube.com/user/nortonroad#p/u/59/AePLpM5SnqE
>

Hello Frank and Norman,
Since I don't have a digital camera, some pictures will have to wait until I can
borrow one.  The boat is certainly not fancy.  It is about 7.5 inches long,
somewhat oval shaped, and powered by a tea candle.  Maybe I am having some
beginner's luck, but the 40 minute bathtub voyage was repeated this evening in
my friends' swimming pool.

However, I have had two solder joints fail on subsequent "excursions." The
latest failure was between the diaphragm and the boiler.  My next engine will
have a larger flange area to increase the joint strength.  Nevertheless, I fixed
the soldered joints, and the boat is merrily chugging around my bathtub as I
write this.

Charles


--- In pop-pop-steamboats@yahoogroups.com, "frankmcneilll" <frankmcneilll@...>
wrote:
>
> Hi Charles,
>
> A 40-minute running time might be some kind of endurance record. This will
need verification by Daryl, but my recollection of pop-pop boats I played with
as a kid is that 40-seconds was about it. By that time my little boats were
usually stuck in weeds on the opposite side of the creek where efforts to
retrieve them with a throw-line usually sank them instead.
>
> Best wishes, Frank
>
> --- In pop-pop-steamboats@yahoogroups.com, charleswclarke@ wrote:
> >
> > I made my first pop-pop engine this weekend.  The engine has a round
diaphragm.  I hammer formed sheet copper to form the boiler, and the diaphragm
is 0.005 inch thick brass.  The engine has two tubes made from .375 inch OD
copper-nickel brake line.  All components were soft soldered together.  To test
the engine, I converted a plastic food storage dish into a boat and used two
rubber grommets to seal the holes for the tubes.  On the first voyage, the boat
ran very good for about 40 minutes.   I really enjoyed this project, and I look
forward to improving my design.
> >
> > Thanks to everyone for the information on this site.
> >
> > Charles
> >
>

A good engine usually keeps running until the heat is removed,
or, a leak develops which is rare when silver brazed, or,
it burns out due to applying too much heat to make it go faster.

--- In pop-pop-steamboats@yahoogroups.com, "frankmcneilll" <frankmcneilll@...>
wrote:
>
> Hi Charles,
>
> A 40-minute running time might be some kind of endurance record. This will
need verification by Daryl, but my recollection of pop-pop boats I played with
as a kid is that 40-seconds was about it. By that time my little boats were
usually stuck in weeds on the opposite side of the creek where efforts to
retrieve them with a throw-line usually sank them instead.
>
> Best wishes, Frank
>
> --- In pop-pop-steamboats@yahoogroups.com, charleswclarke@ wrote:
> >
> > I made my first pop-pop engine this weekend.  The engine has a round
diaphragm.  I hammer formed sheet copper to form the boiler, and the diaphragm
is 0.005 inch thick brass.  The engine has two tubes made from .375 inch OD
copper-nickel brake line.  All components were soft soldered together.  To test
the engine, I converted a plastic food storage dish into a boat and used two
rubber grommets to seal the holes for the tubes.  On the first voyage, the boat
ran very good for about 40 minutes.   I really enjoyed this project, and I look
forward to improving my design.
> >
> > Thanks to everyone for the information on this site.
> >
> > Charles
> >
>

Hello Frank and Norman,
Since I don't have a digital camera, some pictures will have to wait until I can
borrow one.  The boat is certainly not fancy.  It is about 7.5 inches long,
somewhat oval shaped, and powered by a tea candle.  Maybe I am having some
beginner's luck, but the 40 minute bathtub voyage was repeated this evening in
my friends' swimming pool.

However, I have had two solder joints fail on subsequent "excursions." The
latest failure was between the diaphragm and the boiler.  My next engine will
have a larger flange area to increase the joint strength.  Nevertheless, I fixed
the soldered joint, and the boat is merrily chugging around my bathtub as I
write this.

Charles


--- In pop-pop-steamboats@yahoogroups.com, "frankmcneilll" <frankmcneilll@...>
wrote:
>
> Hi Charles,
>
> A 40-minute running time might be some kind of endurance record. This will
need verification by Daryl, but my recollection of pop-pop boats I played with
as a kid is that 40-seconds was about it. By that time my little boats were
usually stuck in weeds on the opposite side of the creek where efforts to
retrieve them with a throw-line usually sank them instead.
>
> Best wishes, Frank
>
> --- In pop-pop-steamboats@yahoogroups.com, charleswclarke@ wrote:
> >
> > I made my first pop-pop engine this weekend.  The engine has a round
diaphragm.  I hammer formed sheet copper to form the boiler, and the diaphragm
is 0.005 inch thick brass.  The engine has two tubes made from .375 inch OD
copper-nickel brake line.  All components were soft soldered together.  To test
the engine, I converted a plastic food storage dish into a boat and used two
rubber grommets to seal the holes for the tubes.  On the first voyage, the boat
ran very good for about 40 minutes.   I really enjoyed this project, and I look
forward to improving my design.
> >
> > Thanks to everyone for the information on this site.
> >
> > Charles
> >
>

Forgot to say that 40 min for a first try is excellent. Would be good for a
tenth try even from my experience.

--- In pop-pop-steamboats@yahoogroups.com, charleswclarke@... wrote:
>
> Hello Frank and Norman,
> Since I don't have a digital camera, some pictures will have to wait until I
can borrow one.  The boat is certainly not fancy.  It is about 7.5 inches long,
somewhat oval shaped, and powered by a tea candle.  Maybe I am having some
beginner's luck, but the 40 minute bathtub voyage was repeated this evening in
my friends' swimming pool.
>
> However, I have had two solder joints fail on subsequent "excursions." The
latest failure was between the diaphragm and the boiler.  My next engine will
have a larger flange area to increase the joint strength.  Nevertheless, I fixed
the soldered joint, and the boat is merrily chugging around my bathtub as I
write this.
>
> Charles
>
>
> --- In pop-pop-steamboats@yahoogroups.com, "frankmcneilll" <frankmcneilll@>
wrote:
> >
> > Hi Charles,
> >
> > A 40-minute running time might be some kind of endurance record. This will
need verification by Daryl, but my recollection of pop-pop boats I played with
as a kid is that 40-seconds was about it. By that time my little boats were
usually stuck in weeds on the opposite side of the creek where efforts to
retrieve them with a throw-line usually sank them instead.
> >
> > Best wishes, Frank
> >
> > --- In pop-pop-steamboats@yahoogroups.com, charleswclarke@ wrote:
> > >
> > > I made my first pop-pop engine this weekend.  The engine has a round
diaphragm.  I hammer formed sheet copper to form the boiler, and the diaphragm
is 0.005 inch thick brass.  The engine has two tubes made from .375 inch OD
copper-nickel brake line.  All components were soft soldered together.  To test
the engine, I converted a plastic food storage dish into a boat and used two
rubber grommets to seal the holes for the tubes.  On the first voyage, the boat
ran very good for about 40 minutes.   I really enjoyed this project, and I look
forward to improving my design.
> > >
> > > Thanks to everyone for the information on this site.
> > >
> > > Charles
> > >
> >
>

Daryl,
I will try to silver braze the copper and brass in the future.  I have attempted
to silver braze in the past with only moderate success.  Next time I will make
sure that the parts are especially clean and have that I have plenty of heat.

Your You Tube videos are very inspiring.  Thank you for posting them.  What
technique do you use to fasten together your aluminum hulls?
Charles

--- In pop-pop-steamboats@yahoogroups.com, "darylcanada73" <darylcanada73@...>
wrote:
>
> A good engine usually keeps running until the heat is removed,
> or, a leak develops which is rare when silver brazed, or,
> it burns out due to applying too much heat to make it go faster.
>
> --- In pop-pop-steamboats@yahoogroups.com, "frankmcneilll" <frankmcneilll@>
wrote:
> >
> > Hi Charles,
> >
> > A 40-minute running time might be some kind of endurance record. This will
need verification by Daryl, but my recollection of pop-pop boats I played with
as a kid is that 40-seconds was about it. By that time my little boats were
usually stuck in weeds on the opposite side of the creek where efforts to
retrieve them with a throw-line usually sank them instead.
> >
> > Best wishes, Frank
> >
> > --- In pop-pop-steamboats@yahoogroups.com, charleswclarke@ wrote:
> > >
> > > I made my first pop-pop engine this weekend.  The engine has a round
diaphragm.  I hammer formed sheet copper to form the boiler, and the diaphragm
is 0.005 inch thick brass.  The engine has two tubes made from .375 inch OD
copper-nickel brake line.  All components were soft soldered together.  To test
the engine, I converted a plastic food storage dish into a boat and used two
rubber grommets to seal the holes for the tubes.  On the first voyage, the boat
ran very good for about 40 minutes.   I really enjoyed this project, and I look
forward to improving my design.
> > >
> > > Thanks to everyone for the information on this site.
> > >
> > > Charles
> > >
> >
>

Hi Norman, Charles, Daryl et al,

I found an online source for info about brazing and Handy & Harman Brazing
Materials.
Go to the links section for a link titled "BRAZING BOOK INDEX"

Old Frank


--- In pop-pop-steamboats@yahoogroups.com, "Norman Adrian" <njadrian@...> wrote:
>
> You also have to use the right kind of flux.
>
>
>
> I use a white flux made by Handy & Harmon that turns to a clear liquid when
> it is ready to apply the solder.
>
>
>
> I also use either easy-flo 35 or 45. The easy-flo 35 works well if you have
> large gaps to fill.
>
>
>
> You can also use rods with flux on them but I prefer to use the paste and
> apply it with an acid brush.
>
>
>
> From: pop-pop-steamboats@yahoogroups.com
> [mailto:pop-pop-steamboats@yahoogroups.com] On Behalf Of
> charleswclarke@...
> Sent: Monday, June 21, 2010 4:23 PM
> To: pop-pop-steamboats@yahoogroups.com
> Subject: [pop-pop-steamboats] Re: First Pop-Pop Engine
>
>
>
>
>
> Daryl,
> I will try to silver braze the copper and brass in the future. I have
> attempted to silver braze in the past with only moderate success. Next time
> I will make sure that the parts are especially clean and have that I have
> plenty of heat.
>
> Your You Tube videos are very inspiring. Thank you for posting them. What
> technique do you use to fasten together your aluminum hulls?
> Charles
>
> --- In pop-pop-steamboats@yahoogroups.com
> <mailto:pop-pop-steamboats%40yahoogroups.com> , "darylcanada73"
> <darylcanada73@> wrote:
> >
> > A good engine usually keeps running until the heat is removed,
> > or, a leak develops which is rare when silver brazed, or,
> > it burns out due to applying too much heat to make it go faster.
> >
> > --- In pop-pop-steamboats@yahoogroups.com
> <mailto:pop-pop-steamboats%40yahoogroups.com> , "frankmcneilll"
> <frankmcneilll@> wrote:
> > >
> > > Hi Charles,
> > >
> > > A 40-minute running time might be some kind of endurance record. This
> will need verification by Daryl, but my recollection of pop-pop boats I
> played with as a kid is that 40-seconds was about it. By that time my little
> boats were usually stuck in weeds on the opposite side of the creek where
> efforts to retrieve them with a throw-line usually sank them instead.
> > >
> > > Best wishes, Frank
> > >
> > > --- In pop-pop-steamboats@yahoogroups.com
> <mailto:pop-pop-steamboats%40yahoogroups.com> , charleswclarke@ wrote:
> > > >
> > > > I made my first pop-pop engine this weekend. The engine has a round
> diaphragm. I hammer formed sheet copper to form the boiler, and the
> diaphragm is 0.005 inch thick brass. The engine has two tubes made from .375
> inch OD copper-nickel brake line. All components were soft soldered
> together. To test the engine, I converted a plastic food storage dish into a
> boat and used two rubber grommets to seal the holes for the tubes. On the
> first voyage, the boat ran very good for about 40 minutes. I really enjoyed
> this project, and I look forward to improving my design.
> > > >
> > > > Thanks to everyone for the information on this site.
> > > >
> > > > Charles
> > > >
> > >
> >
>

I use very small bolts and nuts. It's overkill on strength but has the advantage
of being able to take it apart if necessary for adjustments etc. A little
silicone provides the water proofing.

Re silver brazing:- The Handy and Harmon book of silver brazing is good as are
the other comments. As much as possible keep the open flame away from the join
to be brazed untill the surrounding area is bright red. This reduces the chance
of oxidizing or burning the critical area. The silver should flow like water
when it is applied. If it "chunks" on the material/flame is not hot enough. As
the melting point of silver braze is quite high, when brazing thin materials it
helps to pound the wire flat and cut it into thin strips so it will melt easier
which reduces the risk of burning the material. Soaking in water after will
remove much of the left over flux.

--- In pop-pop-steamboats@yahoogroups.com, charleswclarke@... wrote:

   What technique do you use to fasten together your aluminum hulls?
> Charles

--- In pop-pop-steamboats@yahoogroups.com, charleswclarke@... wrote:
> However, I have had two solder joints fail on subsequent "excursions." The
latest failure was between the diaphragm and the boiler.  My next engine will
have a larger flange area to increase the joint strength.  Nevertheless, I fixed
the soldered joints, and the boat is merrily chugging around my bathtub as I
write this.

You may want to try leaving something like a 1/4" lip on the diaphram edge so it
can be used as a heat sink to keep the soldered eadges cooler. Cut slits in the
lip and bend up at 45 deg to act as cooling fins. I've soldered can lids and pie
pans together, but the soldered joints almost always get liquid and fail.

Thanks for all the background information on silver brazing.  I will have to
order some supplies and start practicing.

The addition of cooling fins near the edge of the diaphragm is interesting.  It
sounds like a good idea to reduce the heat near the soldered diaphragm joint
while maintaining the heat within the evaporator itself.  I will have to think
about how best to do that.  Once when that joint failed, the boat had hit the
side of the swimming pool and remained stationary for quite awhile.  I suspect
the lack of air movement from forward speed contributed to the heat build up in
the soldered joint.

Friday, I hope to go to the Wooden Boat show at Mystic Seaport.  Hopefully, I
will get some ideas regarding a proper boat hull to build.


--- In pop-pop-steamboats@yahoogroups.com, charleswclarke@... wrote:
>
> I made my first pop-pop engine this weekend.  The engine has a round
diaphragm.  I hammer formed sheet copper to form the boiler, and the diaphragm
is 0.005 inch thick brass.  The engine has two tubes made from .375 inch OD
copper-nickel brake line.  All components were soft soldered together.  To test
the engine, I converted a plastic food storage dish into a boat and used two
rubber grommets to seal the holes for the tubes.  On the first voyage, the boat
ran very good for about 40 minutes.   I really enjoyed this project, and I look
forward to improving my design.
>
> Thanks to everyone for the information on this site.
>
> Charles
>

I'm on a mailing list.
Here is your chance to be the best engine builder.

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Benefits:
Gain valuable insights into all facets of brazing. The course provides attendees
with information to help increase brazing/soldering efficiency, reduce and
control variable costs, eliminate costly rejects, and reduce field failures. The
2-1/2 day Fundamentals of Brazing Seminar covers:
brazing heating methods: furnace, torch, vacuum, induction, and resistance
design aspects
alloy selection
joint inspection
Structured for process, manufacturing and quality engineers, designers, brazing
technicians; managers and production supervisors; and brazing operations
personnel, the course will benefit individuals at any level of brazing
experience.

  Download a PDF version of the complete course description

Instructors:
All instructors are degreed engineers with practical knowledge and extensive
hands-on field brazing experience.

Register Early:
To ensure seminar availabilty, register early.
Discounts are available for two or more attendees from the same company.
Discounts also apply to participants from companies that have previously
contracted brazing audits or have attended a previous seminar or one-day,
on-site training event.
Please visit our web site www.lucasmilhaupt.com for further information
or to register, click here
Sincerely,

Gary DeVries
Manager of Market Research
Lucas Milhaupt, Inc., A Handy & Harman Co.
5656 S. Pennsylvania Ave.
Cudahy, WI  53110
Tel:  414.769.6000 ext. 505
Toll-Free: 800.558.3856
gdevries@...

Lucas Milhaupt Inc. | 5656 S. Pennsylvania Ave | Cudahy | WI | 53110

When I opened my E-mail this morning I had 3 messages from YAHOO. They were all related to canceling my YAHOO Group memberships. It said something like "You have requested that you membership be cancelled for XXXXX group. If you want to cancel click here." Our Pop-Pop Group was one of the 3. The message informed me that I couldn't cancel as I was an "owner".

YAHOO either has glitches in their software or someone somehow is trying to randomly upset apple carts. Has anyone else received similar messages?

Hi All,

Why would anyone want to construct diaphragm type boilers?
They are hard to build and will ultimately fail because of melted joints or
metal fatigue. In his You-Tube part 2 Canadian Putt Putt Boats presentation,
Daryl remarked that putting a diaphragm on a boiler is like putting a cushion on
a hammer. Richard Jenkins has a photo of a little boat with a boiler made of
square tubing which apparently did not need to be coiled. There are also sources
for rectangular tubing but nobody seems to have used it so far.
I posted a new home page that shows a circle square and rectangle that contain
approximately equal areas to show why square or rectangular tubing might
outperform round tubing because of their higher ratios of heated surface to
volumetric content.

Old Frank

--- In pop-pop-steamboats@yahoogroups.com, charleswclarke@... wrote:
>
> Thanks for all the background information on silver brazing.  I will have to
order some supplies and start practicing.
>
> The addition of cooling fins near the edge of the diaphragm is interesting. 
It sounds like a good idea to reduce the heat near the soldered diaphragm joint
while maintaining the heat within the evaporator itself.  I will have to think
about how best to do that.  Once when that joint failed, the boat had hit the
side of the swimming pool and remained stationary for quite awhile.  I suspect
the lack of air movement from forward speed contributed to the heat build up in
the soldered joint.
>
> Friday, I hope to go to the Wooden Boat show at Mystic Seaport.  Hopefully, I
will get some ideas regarding a proper boat hull to build.
>
>
> --- In pop-pop-steamboats@yahoogroups.com, charleswclarke@ wrote:
> >
> > I made my first pop-pop engine this weekend.  The engine has a round
diaphragm.  I hammer formed sheet copper to form the boiler, and the diaphragm
is 0.005 inch thick brass.  The engine has two tubes made from .375 inch OD
copper-nickel brake line.  All components were soft soldered together.  To test
the engine, I converted a plastic food storage dish into a boat and used two
rubber grommets to seal the holes for the tubes.  On the first voyage, the boat
ran very good for about 40 minutes.   I really enjoyed this project, and I look
forward to improving my design.
> >
> > Thanks to everyone for the information on this site.
> >
> > Charles
> >
>