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Pennsy S2 Steam Turbine Locomotive

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#21 ·
Absolutely stunning Werner!

Without doubt an engineering and building accomplishment!

What kind of burners are you using?

Perhaps you could sell the design to Aster? They probably have customers that would be willing to pay a premium for such an unusual and interesting model.
 
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Discussion starter · #22 ·
bille1906 said:
Werner
Congratulations on a very successful run.
I am amazed at the speed and power of the engine
Judging by the exhaust plume, it looks like it is using a lot of steam.
Was it able to maintain the high speed for extended periods?
Click to expand...
Hello Bill,
The run shown lasted about three quarter of an hour, Boiler topping up 2 times (as I remember). no restriction on speed.

Werner
 
Discussion starter · #23 ·
Bill.

bille1906 said:
Werner
One other thing
It looks like you have two forward and one reverse ports...is that right?
Also, do you have a photo of the exhaust cover
How many degrees does the steam travel before exhausting
Is there a ball bearing on the exhaust cover?
How is the exhaust cover attached/sealed
Did you take step by step photos of the impeller construction?


Well maybe more than one other thing
Thanks for posting.
Click to expand...
1. correct, can be seen on the first turbine picture

2. no, I'll take one next time I disassemble the turbine. But there are slots just opposite the inlet ports leading to the common exhaust pipe. The steam flow has to be kept as laminary as possible. Then, there will be an under-pressure inside the turbine casing.

3. 140°

4. no

5. slide fit, secured by one M1.4 screw.

6. no

regards Werner
 
Discussion starter · #24 ·
Pauli said:
Absolutely stunning Werner!

Without doubt an engineering and building accomplishment!

What kind of burners are you using?

Perhaps you could sell the design to Aster? They probably have customers that would be willing to pay a premium for such an unusual and interesting model.
Click to expand...
Hello Pauli,

There are 2 Bunsen burners in 2 separate, but communicating combustion chambers. Jet size 0.2mm dia.

Werner
 
#29 ·
Werner
You have inspired me
Is it possible to get the dimensions of the turbine fans
Outside diameters and length of the fwd and reverse fans
I think I remember you saying the ports were .8. I assume that is .8 mm
It looks like you used brass or bronze for the fans. Did you not use aluminum because of the expansion factor?
Thanks
 
Discussion starter · #30 ·
bille1906 said:
Werner
You have inspired me
Is it possible to get the dimensions of the turbine fans
Outside diameters and length of the fwd and reverse fans
I think I remember you saying the ports were .8. I assume that is .8 mm
It looks like you used brass or bronze for the fans. Did you not use aluminum because of the expansion factor?
Thanks
Click to expand...
Hello Bill,

You have the choice between the old method and the newer one, which is used on the PRR S2. I'll send you the deskriptive files by email (this forum cannot handle even medium size file attachments).

Werner

Werner
 
#32 ·
Hi Werner:
I was hoping to get some news from the French group that went to Switzerland this year but nil... This video does more than that and I am amazed at the progress made since last July. It is trully a magnificent acheivement and an impressive undertaking. If I were the Aster, Acucraft or Wuhu people I would contact you to see how such a model could be produced! But the beauty of scratch building is of having that engine which nobody else has...
Keep up the fantastic job you are doing with this.
 
Discussion starter · #34 ·
PRR S2 Final Report

Hello all,

My PRR-S2 has drawn to a close (more or less). The result can be seen on a video taken 3 weeks ago at the EIWI Bahndammfest 2018 in Witterswil/Switzerland. Here it is:


Hope you like it ! Werner
 
#38 ·
Congratulations again Werner for finnishing this very elaborate model. Showing again your mastery of the turbine drive for locomotives.
I was very happy and fortunate to be there at EIWI and to see all this in real life. Those J & M cars are massively heavy. With some lightweight easy going Accucraft or David Leech cars she could haul at least 12.
Best, Simon
 
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