rrboomer wrote:CP runs 27 lb brk cyl pressure on their four axle units. They use a composition brake shoe about the same length as the old passenger car shoe. It gives decent stopping power and one has to work at sliding wheels. D&H runs 72 lb brk cyl on their (single shoe) four axle units. Soo runs 38 lbs on their GP38's; 45 on the ex Milw GP38's and ex SOO/Milw GP40's, MP15's are 40 lbs. All 6 axle units are 72 lbs.
rrb
CN runs 40 lbs on our units with double shoes, and 72 to 80 lbs on units with single shoes.
Engineer Spike wrote:The one in the last post must be a CN unit. The post before that had 3 links. They show a CP unit with the home built control stand.
Yes, the one I posted is a CN GP9 switcher unit. They have CN homebuilt control stands. Our GP9 Road Switchers have the same control stand but run short hood forward. Even though both road switcher and switcher versions have chopped short hoods, the switchers run long hood forward.
Tyler W.