Paddleducks
Paddler Information => Preserved Paddle Ships => Topic started by: mjt60a on July 08, 2013, 07:55:30 PM
-
I hadn't even realised this existed until I recieved 'Paddle Wheels' this weekend...
http://www.youtube.com/watch?v=t5DbmNOqSTY
http://www.nordevall.com/EN/gazeti/hem
-
I visited Erik Nordevall in Forsvik Sweden Wedensday this week and took a lot of photos as references for my R/C model project. Really nice ship, small and quite ugly but she really has charm. Really look forward to strat my model project.
The steam machine is really nice: Low preassure 2*17 HP.
-
Maybe ugly, but just oozes character.
Look forward to following your build
cheers
kiwi
-
Hi PD's...........very interesting machinery :shhh....from the following link it appears that she has independently driven paddle wheels........Derek
http://www.youtube.com/watch?v=r3fu5Xuhg8c
-
Don't think so Derek, around the middle of the video, the paddle shaft can be seen, and looks to me as a solid shaft, being driven by the two independent cylinders. There fore two cylinders on a common shaft
cheers
kiwi
-
Hi PD's........I must admit it is a little confusing Kiwi :a102 .......in an alternate VIDEO... clearly the engineer makes an adjustment to the [assumed as port cylinder] timing then offers similar timing adjustment to the stdb cylinder timing
From this....both cylinders are clearly out of sync with each other.......... :nono :oops
Could be that the common shaft as shown is a simple dummy floating linkage between both cylinders?......
I must agree....that the engine casting components are very delicate & superb in design.........the name nordvall appears in a number of castings........Derek :beer
-
You could be right Derek.
A beautiful piece of engineering them engines though.
The cranks do look 90 degrees offset though. Any more videos lurking? Or other data.
cheers
kiwi
-
Derek, I am with Kiwi on this one. I believe you are wrong, the appearance of being out of sync comes from the valve gear operating at different speeds during the engine cycle. There is a video of the start up, why would they start both engines at once if they are independent. I will try to find it and post the you tube code, as I don't do much else now. Geoff ;D
-
Well I have been on youtube search for Eric Nordevall 11 3 pages of video came up, including a model of the engine. Have a look at the start up. http://www.youtube.com/watch?v=EPEYwcHO4kM
-
As far as I can see in the original machine drawing the axis is solid. The original machine and boilder drawing is availible at the Swedish naval museum: http://www.sjohistoriska.se/sv/Fordjupning/MarketStore/Ritning/?msobjid=0014619&Origin=SM
-
Hi PD's....& naturally I stand corrected :sorry....in the video http://www.youtube.com/watch?v=EPEYwcHO4kM .....from 1.57 minutes >>>>>> 2.44 minutes we see the common crank shaft between the gear on each cylinder
I also think RGY has it with ...."the appearance of being out of sync comes from the valve gear operating at different speeds during the engine cycle"........this was the point that threw me :oops
Still.... a most delicate set of castings for a marine steam engine ....... :clap & plenty of :kewlpics .......Derek
-
I see she is in Sea Breezes this month. I used to sell this in a station bookstall in the 70s, and hadn't realised it was still published
http://www.seabreezes.co.im/index.php?option=com_content&view=article&id=1269:erik-nordevall&catid=30:ferry-world&Itemid=51 (http://www.seabreezes.co.im/index.php?option=com_content&view=article&id=1269:erik-nordevall&catid=30:ferry-world&Itemid=51)