Loading ...
Sorry, an error occurred while loading the content.

Re: New member West Midlands, UK

Expand Messages
  • frankmcneilll
    Hi Tony and Jean-Yves, The same topics come up every now and then. This one seems to be a repetition of Message #498 posted by Vance Bass about a boat that ran
    Message 1 of 9 , Jan 21, 2010
    • 0 Attachment
      Hi Tony and Jean-Yves,

      The same topics come up every now and then. This one seems to be a repetition of Message #498 posted by Vance Bass about a boat that ran better with less heat

      --- In pop-pop-steamboats@yahoogroups.com, "jeanyves_renaud" <boite.de.j-y@...> wrote:
      >
      >
      > Hi Tony,
      >
      > What causes a pop-pop to not get running properly? If you are not
      > waiting for a performing engine I use to say that any pipe closed at its
      > upper end can run as a pop-pop engine (a silent one). However, depending
      > on the size and the materials it can require a more or less accurate
      > heating power.
      >
      > For some of my stationary pop-pop engines I used electrical heating. And
      > they all ran. But I must say that for some of them the heating power
      > window is very narrow and impossible to get with a flame.
      >
      > What is to be taken into consideration?
      >
      > Boiler volume
      >
      > Boiler material
      >
      > Thickness
      >
      > Diaphragm or no
      >
      > Pipe diameter (sometime not equal all along the pipe)
      >
      > Pipe length (for each diameter)
      >
      > Bends
      >
      > Slopes
      >
      > Pipe material(s).
      >
      > Nozzle or not
      >
      > Heating power
      >
      > Length of the pipe that is immersed
      >
      > …
      >
      > A pop-pop engine is a combination of all that. Only one minor change can
      > "destroy" the working conditions of a good engine. In the other
      > way it is difficult to say that you have to do this or that to improve
      > an existing engine. The only method up to now is trial and error.
      >
      >
      >
      > Another thing to know: If an engine runs but not for long, the problem
      > could be a leakage. A leakage which could be invisible with water, but
      > that exists for air and steam.
      >
      >
      >
      > And last thing: A stationary pop-pop engine is a one mass resonator. But
      > if the engine is a light one and if you fit it onboard a very light hull
      > it becomes a two mass resonator with a different frequency. This same
      > engine could work easily in one case and not in the other one.
      >
      >
      >
      > Take care
      >
      > Jean-Yves
      >
      >
      >
      > P.S: I like your "Live, Love, Laugh & Learn"
      >
      >
      >
      > --- In pop-pop-steamboats@yahoogroups.com, "Tony" <tony.hedgewolf@>
      > wrote:
      > >
      > > Jean-Yves {:^)
      > >
      > > My main interest is also in the engines themselves - I now have a coil
      > type on the bench, working on a nice powerful burner to go with it.
      > Sadly I don't have a source of fine tubing yet, so it needs to be big to
      > work this 8mm stuff...
      > >
      > > I really like Daryl's work, but doubt I will ever create anything that
      > detailed ! Slater's diaphram engine is the one I've started with - so
      > simple to build ! I'm now finding the advantages of using silicone for
      > its flexibility {:^)
      > >
      > > I'm looking forward to building a 'hammerhead' - the simplicity
      > appeals to me, but again I'll have to come up with a good burner !
      > >
      > > So, what causes a pop pop to not get running properly ?....
      > >
      > > Take care
      > > - Tony -
      > >
      > >
      > > Live, Love, Laugh & Learn
      > >
      > > --- In pop-pop-steamboats@yahoogroups.com, "jeanyves_renaud"
      > boite.de.j-y@ wrote:
      > > >
      > > > Hi Tony,
      > > > I apologize for answering to Arno instead of you in my previous
      > message, but I see that you read it.
      > > > You have not to be staggered by the range of experiments the members
      > of this group are involved with... As wrote Frank, this is the any
      > topic, no rules and not much discussion group where the development of
      > pop-pop steamboats and engines is occasionally mentioned. But the forum
      > is active for years and we are many members. If you divide the content
      > of the forum by the number of members, the result is not much. But in
      > fact we are a few members very active on the pop-pop boats.
      > > > Though I worked for years in the shipbuilding industry I'm not
      > really interested by the hulls. I focus mainly on engines. I try to
      > answer questions when I can. Some of my works are on this forum. If you
      > don't find what you want, you could find some more information on
      > www.eclecticspace.net . It is not my own website (I have none), but it
      > is a place where most of my papers are available. It is a French
      > website, but the pop-pop documents exist also in English. (Click on
      > "pop-pop" and then on the British flag). And if you want to see big
      > engines running, go to www.eclecticspace.net/doc . There are videos of
      > two big engines: ID23.5 and ID40mm.
      > > > Now, if you are looking for performing engines, look at Daryl's ones
      > for rigid engines (without diaphragm), and Slater's ones for very cheap
      > diaphragm engines. They are the best I know.
      > > > Good reading!
      > > > Jean-Yves
      > > >
      > > >
      > > > --- In pop-pop-steamboats@yahoogroups.com, "Tony" <tony.hedgewolf@>
      > wrote:
      > > > >
      > > > > Jean-Yves {:^)
      > > > >
      > > > > Thanks for the advice - after looking through the photo albums,
      > I'm staggered by the range of experiments the members of this group are
      > involved with...
      > > > >
      > > > > I rather like the Dory barrel engine - is that the type of thing
      > you're using ? I was also very impressed by the beatiful creations with
      > many tubes, heat exchangers and burners which would give nightmares to
      > HR Giger !
      > > > >
      > > > > I've just tested my second engine (a slightly larger version of
      > the first) and look forward to building a decent boat for it. My head is
      > also rapidly filling up with ideas for future ventures - feeling better
      > every day !
      > > > >
      > > > > Take care
      > > > > - Tony -
      > > > >
      > > > >
      > > > > Live, Love, Laugh & Learn
      > > > >
      > > > > --- In pop-pop-steamboats@yahoogroups.com, "jeanyves_renaud"
      > <boite.de.j-y@> wrote:
      > > > > >
      > > > > > Arno,
      > > > > > You want to know "how big can this (pop-pop engine) be and still
      > work ?"
      > > > > > Not sure that a upper limit exists. One of my big engines (pipe
      > ID=23.5mm) ran for hours. And Eljoh and Jorn in the Netherland succeeded
      > to run (not for long) an engine using a 2" pipe.
      > > > > > But!!! The power doesn't increase as much as the engine size and
      > weight. Several small engines are to be prefered to a big one.
      > > > > > Jean-Yves
      > > > > >
      > > > > >
      > > > > > --- In pop-pop-steamboats@yahoogroups.com, Arno <arnobrosi@>
      > wrote:
      > > > > > >
      > > > > > > Welcome to the group,Tony.I'd like to see your creation,any
      > chance of
      > > > > > > photo's?
      > > > > > >
      > > > > > > best wishes and I hope you feel better(soon),
      > > > > > > Arno
      > > > > > >
      > > > > > > Tony wrote:
      > > > > > > >
      > > > > > > > Hello All {:^)
      > > > > > > >
      > > > > > > > I'm a 38 year old father and husband, with a huge number of
      > mostly
      > > > > > > > craft-based hobbies.
      > > > > > > >
      > > > > > > > During a bout of illness this past week, I stumbled across
      > the
      > > > > > > > wonderful world of putt-putt boats and being incapapble of
      > doing
      > > > > > > > anything over-strenuous I eagerly got busy with scissors,
      > beer can and
      > > > > > > > a range of sticky substances to come up with my first
      > putt-putt fish
      > > > > > > > can bathtug...
      > > > > > > >
      > > > > > > > Obviously, my first thought was "how big can this be and
      > still work ?"
      > > > > > > > and "how about radio control ?" ... Lucky me, this turned
      > out to be
      > > > > > > > just the time that someone else headed in that direction and
      > I saw a
      > > > > > > > rather inspiring video of a wood-hulled, double coiled RC
      > putt-putt {:^D
      > > > > > > >
      > > > > > > > Well, I'm going to have a rummage through all your pictures
      > now and
      > > > > > > > see if I get any ideas for the MkII....
      > > > > > > >
      > > > > > > > Take care
      > > > > > > > - Tony -
      > > > > > > >
      > > > > > > > Live, Love, Laugh & Learn
      > > > > > > >
      > > > > > > >
      > > > > > >
      > > > > >
      > > > >
      > > >
      > >
      >
    Your message has been successfully submitted and would be delivered to recipients shortly.