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silverfoxsteam
SE2 - steam enthusiast 2 star
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Joined: 20 Nov 2008
Posts: 1359
Location: Leeds, West Yorkshire
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 Posted: Fri Nov 06, 2009 10:18 am Post subject: |
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| Bowman wrote: | I have a peggy unit too.... 
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That s/v looks interesting Sandy. Is looks like a Mamod 1/4", is it original? I had one like it on an SEL Major once and thought it unusual then.
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Stephen
Silver Fox Steam
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silverfoxsteam
SE2 - steam enthusiast 2 star
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Joined: 20 Nov 2008
Posts: 1359
Location: Leeds, West Yorkshire
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| Posted: Fri Nov 06, 2009 10:20 am Post subject: |
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| John Chapman wrote: | | silverfoxsteam wrote: | It's the Chapman magic in action - you really do have an eye for the unusual John. That's a great find.
I've never heard of a Hobbies 'Pioneer', is it a boat engine? Are those big things sticking out of the top vertical flue tubes? Looks fascinating
Please tell us more about this! |
In 1922 Geoffrey Bowman Jenkins demonstrated his steam powered launches to Hobbies Ltd. of Dereham, Norfolk. Hobbies were impressed and he started the manufacture of the steam launches that were sold under the Hobbies brand name.
By 1924 four launches were available; "Peggy", "Miss America", "Pioneer" and "Peter Pan", in addition the steam engines that powered the launches were also offered for sale as separate items.
In 1927 GBJ experimented with "superheated" engines for the "Pioneer" and "Peggy". They were similar in design but the "Pioneer" engine was quite a bit bigger. The boiler was contained in a cylindrical shroud” with two chimney like vents on top. The shroud was steel for the “Peggy” and brass for the “Pioneer. The steam pipe was quite long and was coiled around the boiler a number of times to provide a degree of “superheating”. Originally the steam pipe was lagged with non imflamable asbestos string. In 1927 a “Pioneer” engine cost 17 shillings and 6 pence (87.5 pence). The engines work well but were complicated and costly to manufacture so by 1929 the “Peggy” and “Pioneer” had reverted to more conventional designs
Mike (Newts) has a nice example of the superheated “Peggy” engine.
The “Pioneer” engine is a fairly substantial bit of kit. The engine unit is basically as the same as a Wormar “Elite” and very similar to a Bowman 158. The boiler is probably about the same size as a Mamod marine unit or an SE2. |
Thanks for the info John - we live and learn!
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Stephen
Silver Fox Steam
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John Chapman
SE2 - steam enthusiast 2 star
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Joined: 13 Jun 2007
Posts: 1471
Location: Cornwall
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| Posted: Fri Nov 06, 2009 10:48 am Post subject: |
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As promised some comparison photos to give an idea of the size of a "Pioneer" engine. I have photographed it with a Mamod SE1 and a Bowman M158 as most people will probably be familiar with one or the other of these.
A shot of the "Pioneer " and M158 engine units showing the strong family resemblance.
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Spokesmann
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Joined: 07 Jun 2007
Posts: 10389
Location: Plymouth, UK.
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| Posted: Fri Nov 06, 2009 11:49 am Post subject: |
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Thanks John, thats better! I like that a lot. Im looking for a power unit for my planned 4th Arrow! I may use a modified MEC1 though. Any plans for this engine?
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John Chapman
SE2 - steam enthusiast 2 star
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Joined: 13 Jun 2007
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Location: Cornwall
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| Posted: Fri Nov 06, 2009 12:25 pm Post subject: |
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| Spokesmann wrote: | | Any plans for this engine? |
In the short term repaint the base which has been painted a rather lurid green and mount it on a wooden base. In the longer term nothing definate at the moment but a repro Pioneer hull would be rather nice 
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Spokesmann
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| Posted: Fri Nov 06, 2009 12:34 pm Post subject: |
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It needs a boat! 
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John Chapman
SE2 - steam enthusiast 2 star
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Location: Cornwall
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Spokesmann
Site Administrator
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Joined: 07 Jun 2007
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Location: Plymouth, UK.
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| Posted: Sun Nov 08, 2009 12:41 pm Post subject: |
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| John Chapman wrote: | | Had a drop of meths left after the Exeter show so I gave the Pioneer a quick run this morning. Happy to report it runs very well indeed |
Excellent news, great looking little unit, whats the overall width on that John?
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