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1
Construction / Re: Rhone paddler "Pilat
« Last post by Paddlemex on October 23, 2019, 02:24:36 AM »
2
Construction / Re: New project started: Irrawaddy paddler "Mindon" 1948
« Last post by Paddlemex on October 23, 2019, 02:13:41 AM »

In an old bilingual Graupner catalog they are called "pressure vents". However, looking that expression up in Google does not render anything similar to what we are talking about.
Ventilator cowl seems to be better. The native English speaking forists probably can tell us the correct name of this device.

Interestingly during my search I found the "Dorade vent" which is a box installed below the cowl to separate water from the air that is fed into the interior of the ship. The name comes from the Dorade yacht where this design was used for the first time in the early 1900s.

3
Construction / Re: Rhone paddler "Pilat
« Last post by Hankwilliams on October 22, 2019, 07:09:02 PM »
Yes, Jurgen, this is the boat of de Joffroy. In the next "Journal für Dampf- und Heißluft" in january there will come out one article about steamboating at river Rhone with excurs to the boats of Claude de Joffroy. The boat model in Paris is the ancestor of our live steam models. There must be one topic by me about de Joffroy in "Research" last year, when I remember correct.

Regards Thomas
4
Construction / Re: New project started: Irrawaddy paddler "Mindon" 1948
« Last post by Hankwilliams on October 22, 2019, 06:53:48 PM »
May be, I didn`t write the correct expression - I mean the funnel-shaped, right-angled tubes for fresh air supply to boiler/ engine room. In german language "Drucklüfter". What is the correct expression?
5
Construction / Re: Rhone paddler "Pilat
« Last post by Paddlemex on October 22, 2019, 12:32:38 PM »

I tried to read as much as possible from the shown pages and in the Fultons Folly article you mention Claude Jouffroy's early ships.
I think I have a picture of the model which is displayed in the Paris Maritime Museum. Unfortunately I don't have descriptions of the pictures I took more than 10 years ago, but when you mention that he used a ratchet mechanism instead of a crankshaft I thought that this may be the model.
Also very interesting is the "feathering" mechanism, in particular when this was built in the 1700s.

Jurgen
6
Construction / Re: New project started: Irrawaddy paddler "Mindon" 1948
« Last post by Paddlemex on October 22, 2019, 10:41:21 AM »

Also puzzled regarding the fans.
Cooling or fresh air supply?

Jurgen
7
Construction / Re: Strongbow type tug
« Last post by Paddlemex on October 22, 2019, 10:37:37 AM »

Thanks Damien.

Slow, slow, slow progress and some disasters to report here.
I made the stern grating, painted the funnel and spilled some paint.

The stern grating work went without mayor difficulties and looks OK to me.

Small disaster: During the painting of the funnel some of the blue paint did not pass the masking-tape-test when I had masked that part for painting the black top and lower cone.
I tried to mask off the cone to repaint just the blue part but that turned out to be very complicated and I could not get a straight line. So I opted to raise the black part and paint the damaged part black.
I am happy with the outcome.

Big disaster: When prepping the wheels with my precious zinc-chromate primer I managed to tip over the paint can and spill most of the paint.  :c002 It is precious because I use very little and was able to purchase a 1/4 liter can a few years ago - still was 3/4 full. Now no one sells any broken quantities any more and I will have to buy 1 liter. At the speed I am using this primer that will last for over 100 years.
Anyway see the pictures.
Fortunately no feathering paddlewheels were harmed in this incident.

Jurgen
8
Construction / Re: Rhone paddler "Pilat
« Last post by Paddlemex on October 22, 2019, 09:59:35 AM »

Congratulations Thomas.

Front page on 2 different magazines at the same time - that is something difficult to beat.

Jurgen
9
Construction / Re: New project started: Irrawaddy paddler "Mindon" 1948
« Last post by derekwarner_decoy on October 22, 2019, 07:22:03 AM »
The four fans Thomas?........for improved combustion, or everything getting too hot?........... Derek
10
Construction / Re: New project started: Irrawaddy paddler "Mindon" 1948
« Last post by Hankwilliams on October 22, 2019, 03:47:02 AM »
It seems, that now all functions are well. The paddleboxes are no more leaking and the engine is running well. I`m waiting now for four fans for installation behind the funnel and the rear enigne area. I made the flag of Myanmar Inland Water Transport, the 1948 successor of Irrawaddy Flotilla Company. I also add some pictures for illustrating the draught of the boat.

Thomas
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