Forum > Live steam

SS "SIR WALTER SCOTT", new 1 : 32 scaled model with steam propulsion

<< < (2/3) > >>

derekwarner_decoy:
Nicely scalloped awning to keep the rain or sun off the passengers  :clap

The double-shaft universal is not common for your builds, is it a long propeller shaft?

Derek 

Hankwilliams:
Hi Derek,

the propeller shaft isn`t long. I think, the double cardan shaft is a effective connection between engine and shaft. The boat without Boiler and R/C now is finished. The original ship has had a smaller awning between rudder house and mast, probably I will leave out this, because it`s difficcult to install this on the removable forecastle.

Thomas

Hankwilliams:
I made the awning at the forecastle yet. Even it is removable, one don`t need this, the superstructure is separated and can be lift off without the awning. Also boiler with return tube was made and tested with hot water until 6 bar pressure. The boiler will get an outside insulation to avoide too much heat inside the nearly closed hull.
The "Sir Walter Scott" is one of my smaller models with a lenght of 106 cm, Deplacement will be less than 5 kg.

Thomas

Hankwilliams:
Now boiler and R/C were build in. Boiler got an insulation with 3 mm pine fillets. The space for the boiler in front of the engine is rather well used, safety valve is leaded out behind the funnel. Weight of the whole boat with empty boiler and still without gas tank and hotwell now reaches only 3760 g. I expect a deplacement of the boat ready to run of about 4,5 kg.

Thomas

Hankwilliams:
First steam up!

on saturday first steam up was made. Some minor problems has had to be solved: The hotwell`s diameter was too big, so it was close to the gastank. I must made a new hotwell with less diameter, also some screws of the engine were not fixed. Today a steam test in water took place. The inlet with the outlet of steamtubes were changed. From the beginning the boat lays stable in water, but with great stern heavyness. A 500 g iron ingot was placed below the bow, then the boat was in balance.
Now it seems, engine is running well, but better some further tests will follow before maiden trip.

Thomas

Navigation

[0] Message Index

[#] Next page

[*] Previous page