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Reply to "Help from a real railroader - What is "Bottling the Air"?"

Hot Water posted:
smd4 posted:
Big Jim posted:

If a leak occurs and the brakepipe pressure increases enough, then the brakes are coming off.

Wait...how will the brake pipe pressure increase if a leak occurs?

If a leak occurs from the emergency reservoir through the a car's brake valve, allowing increased pressure INTO the train line brake pipe, the the brakes could/will release since the train line air pressure increased. 

 

 

FYI, the SRC cars with P valves don't have emergency reservoirs to feed a self release.  A difference between modern and old.   Thus, Strasburg ends up sitting in the position of maintaining the HUMAN knowledge of operating equipment unfamiliar to many current professional railroaders, a real plus for rail preservation and some of the easiest information to lose that once lost might be very difficult to recover.   I find it interesting they also end up having to educate their FRA inspectors in the operation of their legacy equipment.  Some also might ask why, on occasion, SRC doesn't run excursions on Amtrak, as they did years in the past.  One can imagine not only having to educate the locate Amtrak inspector, but everyone else up the chain of command on everything from plain bearings to brake systems.  Let alone steam locomotives.

Cheers,

Bob

OGR Publishing, Inc., 1310 Eastside Centre Ct, Suite 6, Mountain Home, AR 72653
800-980-OGRR (6477)
www.ogaugerr.com

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