It has big radiators on the side (S1's are smaller)
So I looked it up on the net:
http://www.trainorders.com/discussion/read.php?2,756933
CYDZ 251 Alco S2m Palmetto, FL Ex ex-IM&C 201, nee-Ontario Northland 1201
With "Route selective" turnouts, the siding is only dead when the turnout is selected for the "main" route. When you select the "siding" route, it becomes powered and the main will not be powered.
Here are some helpful links...
The frog is the part where the left and right rails will intersect on the diverging route. There has to be a way to prevent the "+" and "-" rails from shorting. This is done 2 ways. (either insulated or non-insulated frogs) There have always been insulated and non-insulated frogs. (Long before...
Rivarossi and Con-Cor poassenger cars have nothing at all in common. Never did.
Con-Cor Internatioanal is still producing these 72' cars. Check it out:
http://www.all-railroads.com/instock/ho72pass.htm
They also produce 85' passenger cars...
Kadee has made the shank on the Whisker couplers a little thicker to make up for the bronze centering spring.
It is just thick enought that it won't fit into some other manufactures' coupler boxes. A little filing with a file fixes it though.