Westinghouse vs. New York Air Brake on N&W ?

[nw-mailing-list at nwhs.org]

Anyone know about the N&W's principles and practices in regard to purchasing from the two air brake suppliers, Westinghouse and New York Air Brake?

Since both companies (in later years) manufactured identical valves for both engines and cars, most roads probably bought from both companies.

What did the N&W do?

-- abram burnett
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