I know I said I would do SP Cab-Forwards, but the script wasn't nearly as detailed as I wanted it to be, so it's undergoing a rewrite. Also, this ended up being a more abridged overview of decapods, so not as much information.
Glad to see this type get some attention. The Gainesville Midland famously ran many decapods up till 1959. Surprisingly of the 13 decapods surviving 4 of them are former GM engines.
It's really cool that American rail enthusiasts always seem to have a knowledge of British trains. The opposite is not so common (I'm from the UK). Good video, I learnt a lot.
A lot of that has to do with how a couple generation of us American railfans got into trains through Thomas The Tank Engine, so the interest in British locomotives tends to stem from childhood nostalgia for the earlier Thomas series that took influence from real railway practice.
Excellent video! This is one of my favorite wheel arrangements. Alabama,Tennessee &Northern had a few and one is in the JJJ collection in Ohio cosmetically restored. She’s 401. AT&N 402 is in Duluth, Ga. She was sold to the Gainesville Midland.
Very first engine you showed was a Frisco Decapod and that was a Class 1 railroad. They had 20 of the Russian Decapods. 1630 is the only one remaining in operational status. 1632 is still around but in poor condition in Belton, Missouri (Somebody rescue that engine!)
If anything, the 9Fs were the best designed Decapods overall, I mean, those things can run at 90 mph with a passenger train, and their driving wheels are only 60" in diameter!
They were an interesting evolutionary step, the Decapod. In many ways an enlarged Consolidation. So, like the Consolidation the only way to increase furnace size was to have a high-pitched boiler - but at the cost of furnace depth. Also, the step to 2-10-2 might well be the only evolutionary step (at least in a tender configuration) where the the step came about through the need to reverse.
Of interest here, the Lehigh & New England had three near identical 2-10-0's to the WM, but had a booster on the tender giving them a starting t.e. over 100,000. Of the pure decapods, WM's after rebuild had the highest t.e. The PRR's were slightly less after rebuild.
It really depends on what railroad they’re working for. The 2-10-0 is fine for short line railroads and for banking at lower speeds, but they’re inadequate on larger railroads. What I’ve found is that decapods are excellent banking engines.
You were making some apples to oranges comparisons. If a person understand why they were built, they should love what they did. They were never intended to run much past 35 MPH. Balancing issues occur when you have drive wheels that are pretty small because little space to put needed counterweights .For their design, and application, they were highly successful. PRR held onto them for a very long time, to the end of steam era for a reason.
Two things I have to say about this video: 1. I wish a Western Maryland Decapod was saved for preservation 2. The Western New York Railway Historical Society has stated that they are looking into restoring their Decapod, Pennsylvanis Railroad 4483, but have not a firm decision yet whether they would do it or not.
The prr decapods small wheels meant less balance as you aren’t always able to fit a large enough counterweight to balance out the piston/drive rods etc.
prr had many 2 10 os used for very heavy trains like coal and other mineral trains and for helper service fat boiler hogs hey were called rough riding too but they did the job also were used as hump engines all over the prr system. was told they could start any train and move it at 50 mph if that was the case. prr knew as they built those brutes in the alltona shops.
Are all 10 driving-wheels flanged..? Or are some drivers "blind" (not flanged)..? Seems as if it is a very long rigid-chassis to operate on short-radius curves.
Probably depended on where a railroad was located (if in the eastern states, probably weaker flanges, and maybe a blind driver, but if in the west, yeah, probably all flanged)
i dont see the advantage of Ten Drive wheel locomotive of any arrangement (Decapod, Santa fe, Texas etc) over a 8 wheel arrangment (Mikado,Consolidation Norther Etc) especially when the tractive effort mentioned for Decapods was under that of a Heavy Mikado
I know I said I would do SP Cab-Forwards, but the script wasn't nearly as detailed as I wanted it to be, so it's undergoing a rewrite.
Also, this ended up being a more abridged overview of decapods, so not as much information.
Glad to see this type get some attention. The Gainesville Midland famously ran many decapods up till 1959. Surprisingly of the 13 decapods surviving 4 of them are former GM engines.
203 208 and 209 are baldwin standards. 206 is the only surviving true russian decapod from the gainesville midland.
It's really cool that American rail enthusiasts always seem to have a knowledge of British trains. The opposite is not so common (I'm from the UK). Good video, I learnt a lot.
A lot of that has to do with how a couple generation of us American railfans got into trains through Thomas The Tank Engine, so the interest in British locomotives tends to stem from childhood nostalgia for the earlier Thomas series that took influence from real railway practice.
Very well made video! Thanks for going over the technical aspects of these steam engines.
Excellent video! This is one of my favorite wheel arrangements. Alabama,Tennessee &Northern had a few and one is in the JJJ collection in Ohio cosmetically restored. She’s 401. AT&N 402 is in Duluth, Ga. She was sold to the Gainesville Midland.
Very first engine you showed was a Frisco Decapod and that was a Class 1 railroad. They had 20 of the Russian Decapods. 1630 is the only one remaining in operational status. 1632 is still around but in poor condition in Belton, Missouri (Somebody rescue that engine!)
If anything, the 9Fs were the best designed Decapods overall, I mean, those things can run at 90 mph with a passenger train, and their driving wheels are only 60" in diameter!
I wondered how long it would be until someone mentioned the 9Fs. My favourite locos!
They were an interesting evolutionary step, the Decapod. In many ways an enlarged Consolidation. So, like the Consolidation the only way to increase furnace size was to have a high-pitched boiler - but at the cost of furnace depth.
Also, the step to 2-10-2 might well be the only evolutionary step (at least in a tender configuration) where the the step came about through the need to reverse.
Of interest here, the Lehigh & New England had three near identical 2-10-0's to the WM, but had a booster on the tender giving them a starting t.e. over 100,000.
Of the pure decapods, WM's after rebuild had the highest t.e. The PRR's were slightly less after rebuild.
It really depends on what railroad they’re working for. The 2-10-0 is fine for short line railroads and for banking at lower speeds, but they’re inadequate on larger railroads. What I’ve found is that decapods are excellent banking engines.
I know the seaboard airline had many decapods, and one of them is preserved: #544. I don't know if they ever ran any of their decapods in Florida
You were making some apples to oranges comparisons. If a person understand why they were built, they should love what they did.
They were never intended to run much past 35 MPH. Balancing issues occur when you have drive wheels that are pretty small because little space to put needed counterweights
.For their design, and application, they were highly successful. PRR held onto them for a very long time, to the end of steam era for a reason.
Two things I have to say about this video:
1. I wish a Western Maryland Decapod was saved for preservation
2. The Western New York Railway Historical Society has stated that they are looking into restoring their Decapod, Pennsylvanis Railroad 4483, but have not a firm decision yet whether they would do it or not.
You should talk about the GM Aerotrain and why it failed.
And that it's actually an SW1200 in disguise.
@@Pensyfan19 What?
@@NW2174Fan Same prime mover and internal components. Only thing that's different is the streamlining and wheel arrangement.
@@Pensyfan19 :/
While the Decopods may have issues, they could be really good if worked on more I mean look at the 9Fs
Also what in the rail of division is that 4:40
Canadian Pacific had 41 Decapods in two classes, most of which ran until the end of steam in the late 50’s.
The prr decapods small wheels meant less balance as you aren’t always able to fit a large enough counterweight to balance out the piston/drive rods etc.
Very interesting history
prr had many 2 10 os used for very heavy trains like coal and other mineral trains and for helper service fat boiler hogs hey were called rough riding too but they did the job also were used as hump engines all over the prr system. was told they could start any train and move it at 50 mph if that was the case. prr knew as they built those brutes in the alltona shops.
Frisco 1630 sighted!
PRR, was the King of Decapods.
Great Western 90 Arrived at the Strasburg railroad
Are all 10 driving-wheels flanged..? Or are some drivers "blind" (not flanged)..? Seems as if it is a very long rigid-chassis to operate on short-radius curves.
I think on most locos they are all flanged, but I could be wrong.
It was pretty common for the center drive wheel to be blind to allow them to better negotiate curves
Probably depended on where a railroad was located (if in the eastern states, probably weaker flanges, and maybe a blind driver, but if in the west, yeah, probably all flanged)
I don't know about US practice, but the British 9Fs had unflanged centre drivers. Maybe we had tighter bends in our rail yards.
Pennsy's decapods had blind center drivers but, on the PFM HO model, all drivers are flanged.
shame 90's gonna be stuck in the shed for overhaul when she turns 100 next June, unless they decide to put her out on display for that
i dont see the advantage of Ten Drive wheel locomotive of any arrangement (Decapod, Santa fe, Texas etc) over a 8 wheel arrangment (Mikado,Consolidation Norther Etc) especially when the tractive effort mentioned for Decapods was under that of a Heavy Mikado
2-10-0 are a really interesting wheel arrangements but 0-10-0 are not that good
Same
👍👍👍
Seaboard air line own them
I'm sorry bro...I tried actually listenning but I only heard ☝️🤓
yeah yeah, whatever