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Scott: The early Zephyr equipment of the 30's and early 40's came equipped with full width diaphragms basically for aesthetic purposes to give the appearance of the train being continuous with no gaps between the cars. As time went on the full width diaphragms became a maintenance issue as they did not allow access between the cars for service on hoses, couplers, etc. so the switch was made to narrow width diaphragms say mid to late 40's. New car orders say late 40's and beyond including your 1947 Budd-built Twin Cities Zephyr consists came equipped with the narrow width diaphragms so as time went by the full width versions went by the wayside. Thanks - Dennis Popish
Sent from AOL Mobile Mail -----Original Message----- From: Scott Myers myers.scottv@gmail.com [CBQ] <CBQ@yahoogroups.com> To: cbq <cbq@yahoogroups.com> Sent: Fri, Jul 31, 2015 04:57 PM Subject: [CBQ] Streamline Passenger Car Diaphragms
I've been meaning to ask this question of the group for awhile. Looking at photos of the non-articulated Zephyr cars in various books, I see some with full width diaphragms and some with the narrow diaphragms. My particular interest is for my Oriental Limited 1948 8 car TCZ set, but I'm curious about all the Zephyr cars. I can't seem to discern any particular pattern. It does look like these cars came with FWDs when delivered, and perhaps this is true of other cars as well. So were some (or most) later converted to the narrower diaphragms?
Scott Myers
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