railroadboy wrote:if trains loose traction why not place rubber on the axles
Hey Thats what they do in Oguage!
Traction is lost when the steel wheels slip at their point of contact with the rail and has nothing to do with the axles on which the wheels are mounted. Obviously a rubber faced wheel could not withstand the weight of railway equipment - the rubber would be squeezed out and off of the wheel in one revolution. If you have and doubt about the forces involved try placing a penny on the rail and see what a passing locomotive does to it.
Mark
LOL wyoming no problem. We used to do NASCAR speechs when I hostled for when Yard Control got us out in a hurry to our trains. Our shop forces would laugh saying " think about how long that Pit stop would be.So I always would say when blasting by " Next stop we are taking 12"
Never really burned off the 12 wheels (some starts I had maybe took a bit off but hey I was in a hurry lol)just being a typical smart aleck.
Yes we are on time but this is yesterdays train
Actually, years ago in France (I believe) Michelin manufactured pneumatic rubber train wheels with flanges.
PZ
Part of Mexico City's subway was set up with rubber tired cars, but the system was too expensive to operate, and Mexico City gave up on the experiment in the '70s.
Mexico City's extensive Metro system still uses rubber tired cars. Of course, that's a lot different from the idea of putting rubber 'traction tires' on steel wheels. It's a great subway system, by the way.
Regards
Ed
banjosouthernpacific fan wrote:If it is a full size train, the rubber would were off very quickly!
This idea was really tried on experimental Budd railcars during the 1930s. Michelin made special flanged tires for the two test cars that ran on PRR and Reading. Neither worked very well. A larger stainless steel version was tried on the Texas & Pacific and failed as well. Budd kept at it, and after the D&RGW's Prospector they got it right, the RDC was successful. But, not with rubber tires.
There are two subway systems that use rubber tired vehicles: Le Metro en Paris,and Montreal,too. Both of these systems are more expensive to operate than conventional steel wheeled equipment. Part of Mexico City's subway was set up with rubber tired cars, but the system was too expensive to operate, and Mexico City gave up on the experiment in the '70s. The advantage was supposed to be in a quieter operation, not disturbing nearby residents. But, who wants to hear the alarms going off for hot tires (Montreal) which are loud and very irritating.
But then they could do "pit stops" and take either two or four tires. Best to do it on a "yellow."
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