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;amp;amp;amp;amp;amp;amp; Hot Air Engines
(HTM) https://officeofsteamforum.createaforum.com
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#Post#: 41598--------------------------------------------------
My new speed steam boat project
By: Raphael HAVRANEK Date: May 8, 2021, 2:10 pm
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Bonjour,
I like Hit & Miss engines indeed and, even if I am waiting a new
Microcosm M19, my passion is for steam boats.
My previous boat having been badly beaten :(
(HTM) https://www.youtube.com/watch?v=ysNQ-Prq8II
I embarked on a new steam speed project with improbable
elements, a 60 year old Chris Craft hull rescued from the trash,
a double burner Babcock boiler that weighs two arms and a very
powerful speed machine, luckily.
Before :
(HTM) https://www.youtube.com/watch?v=IRoPl6YDcc0&t=199s
Here is her first test:
(HTM) https://youtu.be/3PRPYb72uAU
I still have some work to do to get her maximum ;)
#Post#: 41601--------------------------------------------------
Re: My new speed steam boat project
By: Quickj Date: May 8, 2021, 2:18 pm
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Very nice.
I have an old wood Chris Craft boat here somewhere.
I should try running it in the bath tub.
#Post#: 41608--------------------------------------------------
Re: My new speed steam boat project
By: txlabman Date: May 8, 2021, 4:48 pm
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Looks like a Speed Demon Raphael.
What type of prop will you use?
#Post#: 41615--------------------------------------------------
Re: My new speed steam boat project
By: Woe is me Date: May 8, 2021, 8:34 pm
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Wow, those things move pretty good.
#Post#: 41627--------------------------------------------------
Re: My new speed steam boat project
By: Raphael HAVRANEK Date: May 9, 2021, 3:39 am
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Bonjour,
Charlie, This first test was done with a 2 blades 60 mm offshore
propeller, I will try a 67 mm, then I will buy 3 blades 60 and
67 mm ones and measure the results with a, emectronic
tachometer.
For my gas fall of pressure issue, I will convert my tank to
liquid phase.
My best "ennemy" runs at about 12 km/h, 6,5 knots, this is the
speed that I want to exceed as much as possible ;)
#Post#: 41654--------------------------------------------------
Re: My new speed steam boat project
By: Jim Date: May 9, 2021, 6:47 pm
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Enjoyed the videos Raphaël.
#Post#: 41706--------------------------------------------------
Re: My new speed steam boat project
By: Dampfopa Date: May 10, 2021, 1:58 pm
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I liked the videos a lot.
#Post#: 41708--------------------------------------------------
Re: My new speed steam boat project
By: Raphael HAVRANEK Date: May 10, 2021, 2:07 pm
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Bonjour,
I have solved my loss of power issue by using the gas in its
liquid phase :
(HTM) https://youtu.be/1TdwdAKIFKE
I have to find different propellers for the tests I can't wait
to start !
#Post#: 41710--------------------------------------------------
Re: My new speed steam boat project
By: txlabman Date: May 10, 2021, 2:20 pm
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Excellent progress Raphael!
#Post#: 41871--------------------------------------------------
Re: My new speed steam boat project
By: Raphael HAVRANEK Date: May 13, 2021, 10:34 am
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Bonjour,
For fun, another speed steam machine :
(HTM) https://youtu.be/ubZbn5o6EfI
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