HO S2

[sailormatlac]

Thanks guys! Now we have a more definite answer!

Matt

[Mr Fixit]

Cab roof lowered for mill clearance. Man that flashing beacon must brush the support beams then.
Mark

[doctorwayne]

Cab roof lowered for mill clearance. Man that flashing beacon must brush the support beams then.
Mark

At the steel plant where I worked, the diesels (SW8, 9, and 900) all had their cab roofs cut-down in order to clear the underside of the cabs of overhead cranes in some of the older mills:





This mill has plenty of clearance under the crane cabs:



Wayne

[sailormatlac]

Wayne, thanks. The Donohue warehouse has doors that can handle hi-cube boxcars. I suspect the clearance must be inside for similar reasons as Stelco plants. BTW, a very nice switcher!

Matt

[Charlie B]

The obvious reason for converting from the blunt trucks to me would be roller bearings on the AAR version trucks they used.
Charlie

[Charlie B]

In case you have some intrest here are some pictures I took of CR 9752, an Alco S-4 built for the P&LE (8652)in October, 1953 including some detail views of the rivets                    
Charlie

[sailormatlac]

Thanks Charlie. That may be useful.

Atlas rep just told me old tooling S2/S4 trucks are not compatible with the new tooling locomotive. Well, nothing is impossible, but I think I'll postpone this project until the new S4 is released. I already have lots of projects to finish in the hands.

Matt

[lajry]

Not all the ALCO S-2/S-4s ended up w/ the from the factory stacks. Alot of eastern & western RRs made them taller & either cylindrical or rectangular. See the attachments:

   
   

Have many more pix of the different ALCO switcher stacks. Too many to put all here so PM me w/ your email addy if you want me to send them to you.
Wanting the right ones to run on my LAJ layout had both kinds (ATSF & LAJ) made by 3D printing. UP also had taller cylindrical stacks. Can use the LAJ one but will need to add a "weld" line or a band about 1/2 up the stack. Haven't seen any SP pix w/ non ALCO stacks. Check as many pix of your RRs ALCO switchers to see which kind of stacks that RR had. The RRs weren't always consistent about changing the stacks.