The Societe de transport de Montreal(STM) announced yesterday that it's ready to begin sending more of its new AZUR trains into passenger service following the successful completion of a testing period.
Dave, when I looked at the Wikipedia website https://en.wikipedia.org/wiki/MPM-10 for these cars, I noted that it said for BRAKING SYSTEMS STM-made wooden brake shoes. I find this suspicious. Rail brakes made of wood would catch fire. Bad for a subway. Any thoughts. I know, don't believe all you read on the internet.
Electroliner 1935Dave, when I looked at the Wikipedia website https://en.wikipedia.org/wiki/MPM-10 for these cars, I noted that it said for BRAKING SYSTEMS STM-made wooden brake shoes. I find this suspicious. Rail brakes made of wood would catch fire. Bad for a subway. Any thoughts. I know, don't believe all you read on the internet.
Wood will not warp like steel or iron would do. They will have a shorter life span, but are less expensive and apparently eaisly replaceable.
Bean Counters have approved them, and there must be something to them for engineering to accept them.
Perhaps they will cause less damage to the wheel sets. Longer life on those things will be a big asset.
ROAR
The Route of the Broadway Lion The Largest Subway Layout in North Dakota.
Here there be cats. LIONS with CAMERAS
Wow! Fascinating video.
RMERME wrote the following post 9 hours ago:
WOW, I learned something new. Thanks for the link to the video. I still don't know how the wood shoes handle the heat without catching fire but it impresses me that they don't. I preume that regenerative braking or dynamic braking handles most of the deceleration and the wood shoes only handle the last 5 or 10 mph similar to PCC cars.
I have never forgotten riding the B&O's National Limited down the grades in West Virgina and seeing the sparks coming off all the wheels on the train as I was watching from the vestibule door. Retainers were on and it was dark and a real fireworks show. No dynamic brakes in those days.
The more things change, the more they stay the same.
Back in railroadings infancy, the 1830's, wooden brake shoes were used.
Electroliner 1935 RME RME wrote the following post 9 hours ago: WOW, I learned something new. Thanks for the link to the video. I still don't know how the wood shoes handle the heat without catching fire but it impresses me that they don't. I preume that regenerative braking or dynamic braking handles most of the deceleration and the wood shoes only handle the last 5 or 10 mph similar to PCC cars. I have never forgotten riding the B&O's National Limited down the grades in West Virgina and seeing the sparks coming off all the wheels on the train as I was watching from the vestibule door. Retainers were on and it was dark and a real fireworks show. No dynamic brakes in those days.
RME RME wrote the following post 9 hours ago:
And don't forget that the brakes on SF cablecars include wood blocks pressed on the rails themselves.
It is easier to replace brake shoes than rails.
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