We the drivers have been removed from the frame and are on their way out for restoration. Boy I never thought I'd see the day. Looks like they are headed to Strasburg.
You want to see pics of 80" drivers click on the link
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The 3713 when it was whole. This steamer may have the largest drivers in operation when it is restored to operating condition. I wonder what top speed she will be capable of?
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Bobby Ogage posted:The 3713 when it was whole. This steamer may have the largest drivers in operation when it is restored to operating condition.
Her drive wheels are 80", pretty standard for passenger steam locomotives, and the same as SP 4449, UP 844, and Santa Fe 3751. Also soon to be operational, Santa Fe 2926 has 80" drivers.
I wonder what top speed she will be capable of?
Well, "capable" is one thing (100+ MPH), however without cab signal, train control, and PTC she will be limited to an FRA mandated maximum speed of 79 MPH.
HW, I wouldn't expect her to see 79mph on the Pocono main. Maybe 35mph if the locals can keep their ATVs off the ROW for more than a mile.
I am curious to see how many cars she can comfortably pull as her tractive effort is right around 40k, which is 6k less than 2317, and a whopping 13k less than 3254. I would think that five coaches should be no problem but more than that and she is going to be working hard coming out of Scranton.
I have to guess that at least her first season back will see a big spike in riders - if you were Steamtown, would you add diesel assist for extra coaches, or just schedule more excursions?
The fire box design is interesting/unusual with a syphon jet. I assumed the idea was more fire box surface area, more water to steam quicker.
Mike CT posted:The fire box design is interesting/unusual with a syphon jet.
They are called Thermic Syphons, and many coal burners used them. The increased surface heating area plus the convection of cooler boiler water from the throat sheet area upwards to the crown sheet. Other railroads preferred the smaller diameter Circulators from the side sheets, plus unlike the Thermic Syphons which were stayed, the circulators did NOT have to be cut loose from the throat sheet periodically, in order to relieve stresses.
I assumed the idea was more fire box surface area, more water to steam quicker.
Montclaire posted:HW, I wouldn't expect her to see 79mph on the Pocono main. Maybe 35mph if the locals can keep their ATVs off the ROW for more than a mile.
I am curious to see how many cars she can comfortably pull as her tractive effort is right around 40k, which is 6k less than 2317, and a whopping 13k less than 3254. I would think that five coaches should be no problem but more than that and she is going to be working hard coming out of Scranton.
I have to guess that at least her first season back will see a big spike in riders - if you were Steamtown, would you add diesel assist for extra coaches, or just schedule more excursions?
Hence the need for the booster.
superwarp1 posted:Montclaire posted:HW, I wouldn't expect her to see 79mph on the Pocono main. Maybe 35mph if the locals can keep their ATVs off the ROW for more than a mile.
I am curious to see how many cars she can comfortably pull as her tractive effort is right around 40k, which is 6k less than 2317, and a whopping 13k less than 3254. I would think that five coaches should be no problem but more than that and she is going to be working hard coming out of Scranton.
I have to guess that at least her first season back will see a big spike in riders - if you were Steamtown, would you add diesel assist for extra coaches, or just schedule more excursions?
Hence the need for the booster.
The booster was generally only used to start heavy passenger trains. Boosters were not really designed for continuous operation on long grades, so if Steamtown desires to use the booster a lot on 3713, then the ugly spector of seriously increased maintenance on the booster, will surely become an issue. Many, many, many railroads removed the boosters from lots of their steam locomotives due to the increased maintenance.
That's the issue with Scranton - she's going to work the whole way out of the valley.
It took me a minute to find it, but she's rated at 52k with the booster engaged. She should be able to pull whatever 2317 could, but I don't think we will see anything over five cars without assist. Long term that shouldn't be an issue.
Hot Water posted:Mike CT posted:The fire box design is interesting/unusual with a syphon jet.
They are called Thermic Syphons, and many coal burners used them. The increased surface heating area plus the convection of cooler boiler water from the throat sheet area upwards to the crown sheet. Other railroads preferred the smaller diameter Circulators from the side sheets, plus unlike the Thermic Syphons which were stayed, the circulators did NOT have to be cut loose from the throat sheet periodically, in order to relieve stresses.
I assumed the idea was more fire box surface area, more water to steam quicker.
Correction noted. Thank you.
Attractive 4-6-2.
Dominic Mazoch posted:Attractive 4-6-2.
She's a great looking engine. I can't wait to see her back on the rails. BLW #26 has been wearing her whistle, which is a nice treat.
