German explorating Paddlesteamer "Welf", steam driven

[Hankwilliams]

Greetings to my favorite city of Vienna!
Of course I will post some pictures of the steam plant. It`s a small oscillating engine made by Laspe in the 1990-tis, bore is 10 mm, stroke 12 mm. The engine is made very precise and doesn`t need much steam. The home made brass boiler`s diameter is 100 mm with a lenght of 105 mm. The return copper tube with crosstubes produces steam for about 35 - 40 minutes.
I add two pictures of the last run in 13.06.2019. Quality of this pictures isn`t very good, because pixels are too high and I had to photograph from my pc.

Thomas

[Hankwilliams]

Here are the pictures!

[DamienG]

 

[kno3]

Very nice, thank you for the pictures. You seem to be a big fan of geared down engines, I think I've seen them in all the paddlewheel steamers you have shown here.

[Hankwilliams]

Not at all, dear friend. Directly driven are: The sternwheelers "Zambezi" and "Ville des Bruges", the ironclad "Choctaw", the Irrawaddy steamer "China" and of course my paddle launch "Fulton`s Folly". If the stroke of the engine is long enought, direct driven paddleshaft is the better and more original choice.
I will post some pictures soon.

Thomas

[Hankwilliams]

Here are some pictures, I hope, the file will not be too large!

Thomas

[kno3]

Wow, they are all highly interesting and nice. Are there videos of the engines working?

[Hankwilliams]

Yes, there are two films on youtube. A longer one about "Choctaw": Battleship "Choctaw" in action at steam exhibition Karlsruhe EDHT 2015.
A short film about "Fulton`s Folly: Paddlewheel steamboat original size at steam exhibition Karlsruhe EDHT 2015.

Hope, you will enjoy the videos!

Thomas

[derekwarner_decoy]

Morning.....I had not seen this video link before ....... https://www.youtube.com/watch?v=es07XvyeHM0 .......brilliant!

Questions

1. what are the round pins...maybe 3 diameter s 60 long....fitted @ 180 degrees to the paddle crank on each side?
2. are the crank flywheels [next to these pins] made by Winfried Niggle? 
3. was the calculation of Choctaws displacement or should I say free-board difficult?....as she certainly floats close-by the water

Derek 

[Hankwilliams]

Hi Derek,

the pins in the flywheels are the driving pins. The whole engine can be lateral shifted to lose the coupling of one paddlewheel in turns, only rudder isn`t sufficient because of the wide hull. The cranks of the engine will gear in either in both flywheels or only in the port or starbord one. You see this in 3.11,  only the outer paddlewheel is turning. As I remember the flywheels are from Regner.
The freebord of the "Choctaw" was very low, I will add two original pictures. With the strong armoring the boat was very heavy, also speed only reaches 2 - 3 nautic miles against the river, but this wasn`t decivise - with the armoring the boat becames as good as invulnerable.

Thomas

[Hankwilliams]

There are 2 short scenes of "Fulton`s Folly" on youtube: Paddlewheel Boat "Fulton`s Folly", steamdriven
and: "Fulton`s Folly" first trip after 1 hour experience

Thomas