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| Re: Linked Sets (1639423) | |||
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Re: Linked Sets |
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Posted by Train Dude on Mon Feb 24 02:41:23 2025, in response to Re: Linked Sets, posted by Stephen Bauman on Sun Feb 23 22:32:49 2025. I think that you covered most of the highlights. I will add one positive and one not so positive. First the positive. Back before the R-68s were linked, the MDBF ran at about 100K Miles which was unaceptable. After the cars were linked, and the D-Train was running a trunkated service due to the closing of the Manhattan Bridge, the MDBF rose to over 500K miles on the Concourse R-68s. Once the bridge reopened the MDBF fell to between 200K & 250K which was still a vast improvement attributable largely to the removal of many troublesome components. At the same time, linking of the R-44s and R-46s while also improving reliability, masked the problem that if found before linking, might have negated the need for removal of the P-Wire braking and replacing the 2 air brake systems on those fleets. One other benefit was the saving of manpower. Inspections on 2-car linked units required a 6 man inspection team. But due to the removal of several components, a 4-car linked unit required 2 5-man teams. |
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