Replies sorted oldest to newest
Please upload it, I would love to see it.
The quality is poor, and no sound. I've had it for a while. Don't remember where I found it. I've also got a bunch of pictures of the s2, some very good quality that I have debated blowing up and framing for my man cave
Wow! we are so lucky to have THAT! I too wonder what she sounded like. No sign of chuffing, eh?
Nice Video, I have seen that before and I am surprised nobody has a decent film of them running.
The 6200 top speed was limited to 110 mph by the turbine [overspeed trip] cutoff.
During the initial runs the throttle was prone to stick in the open position, causing some panic in the cab. This problem was corrected when returned, I think to Eddystone.
The modification to the throttle design still did not completely correct this problem.
She was called the "Whoosh", because that was the sound she made going by, if that's any clue to the sound made. I'd love to hear the actual sound, though, if sound exists!
http://youtube.com/watch?v=ZsrzUjcHeAs
A friend of my father worked for the pennsy in Ohio and I remember him saying the 6200 sounded like a hurricane going by. According to him engineers hated the turbine, Rough riding, hot and and a pita to to run. Of course it's appetite for fuel doomed the turbine 6200 to be the only one built.
Wow,What a photo Chris.
Yeah much different, I couldn't imagine having to plumb that thing....eeeesh what a job.
Of course it's appetite for fuel doomed the turbine 6200 to be the only one built.
The reason the S2 project was dropped, which would have been Class R 4-8-4, was the expected increase in efficiency at speed was not achieved, diesels not withstanding.
The designers knew at low speed [below 10 mph] the turbine would have an efficiency problem. The S2 was designed and constructed on a tight budget made worse by war time restictions on the Metallurgy available. Added cost was the principal reason for dropping the booster from this project. The booster would hve helped the starting problem below 10 mph.
The S2 was an experimental engine to determine the efficiency of a direct drive turbine at speed. An expected increase of 4 to 6 percent over the conventional steam engines was not achieved and further consideration was dropped. .
Given the amount of time and money the PRR spent on the S2 project, it's amazing that there weren't more films of it made in action.
There was a direct drive steam turbine built in England before WWII which used multiple nozzles to control the speed of the turbine instead of a throttle. From what I read it was reasonably successful. Perhaps the S2 would have been better if the Pennsy tried that method.
Stuart
There was a direct drive steam turbine built in England before WWII which used multiple nozzles to control the speed of the turbine instead of a throttle. From what I read it was reasonably successful. Perhaps the S2 would have been better if the Pennsy tried that method.
Stuart
The S2 turbine had four nozzles.
There was a direct drive steam turbine built in England before WWII which used multiple nozzles to control the speed of the turbine instead of a throttle. From what I read it was reasonably successful. Perhaps the S2 would have been better if the Pennsy tried that method.
Stuart
I spent over 26-years in the electric power industry around turbines from 1,716,506 HP to much small used to drive Feed-Water and Reactor Charging pump. They ALL had nozzle blocks made up of FOUR sets of INLETs evenly directed steam around the circumference of the moving turbine blades. And then you have a nozzle like structure that redirects steam from each rotating blade set onto the next rotating blade set.
Given the amount of time and money the PRR spent on the S2 project, it's amazing that there weren't more films of it made in action.
If it would have been successful, there would have one heck of a PRR promo film made.
Rusty
Given the amount of time and money the PRR spent on the S2 project, it's amazing that there weren't more films of it made in action.
If it would have been successful, there would have one heck of a PRR promo film made.
Rusty
I wasn't talking about promo films, though. I had in mind films made for the engineering department's use during its evaluation runs.