Power at both ends

Discussion related to NYAR operations on Long Island. Official web site can be found here: www.anacostia.com/nyar/nyar.html. Also includes discussion related to NYNJ Rail, the carfloat operation successor to New York Cross Harbor that connects with NYAR.

Power at both ends

Postby DaveBarraza » Wed Mar 02, 2016 10:36 pm

When NY&A trains have units at both ends of the train, are the trailing units being remote controlled, by "distributed power" or some similar scheme? Or do they just coast until one of the crew goes back to run it?
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Re: Power at both ends

Postby Crabman1130 » Thu Mar 03, 2016 6:12 pm

I wondered the same thing. I always thought they were just being towed.
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Re: Power at both ends

Postby Backshophoss » Thu Mar 03, 2016 9:31 pm

The second unit trailing allows switching both facing and trailing point switches when running with the current of traffic
on the 2 track mainlines,and is an insurance policy of getting back to Fresh Pond yard as a working cab signal equipped train
if the ASC/Cab signal craps out on 1 of the units while on the road.
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Re: Power at both ends

Postby Crabman1130 » Fri Mar 04, 2016 11:17 am

Backshophoss wrote:The second unit trailing allows switching both facing and trailing point switches when running with the current of traffic
on the 2 track mainlines,and is an insurance policy of getting back to Fresh Pond yard as a working cab signal equipped train
if the ASC/Cab signal craps out on 1 of the units while on the road.

Is the trailing unit supplying traction is the question.
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Re: Power at both ends

Postby BobLI » Fri Mar 04, 2016 11:44 am

The rear end unit is just along for the ride. No traction provided unledss its to push in the opposuite direction into a siding. and then the crew has to walk to that unit to operate it.
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Re: Power at both ends

Postby DaveBarraza » Sat Mar 05, 2016 10:39 am

BobLI wrote:The rear end unit is just along for the ride. No traction provided unledss its to push in the opposuite direction into a siding. and then the crew has to walk to that unit to operate it.


Thanks!
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Re: Power at both ends

Postby jayrmli » Thu Apr 07, 2016 3:06 pm

The only way it could be providing traction is if another engineer was operating from that end to give an additional push. One night we were sent up on the Port Jeff during leaf season after a work train went up to power wash the rails. (This was done for awhile in addition to using sandite.) The power washing solution made it slipperier than the leaf residue before it dried, so another qualified crew member was sent to the rear to help push.
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