H-6, H-8 and R4-RL Brake Valves on Engines

[NW Mailing List]

Mr. King is probably the only man on this List who can answer these two questions...

1. Did not the N&W add the Pressure Maintaining feature to its schedule H-8 brake equipment on passenger engines, when pressure Maintaining came out ? Or did they just immediately convert some steam engines to the 24 brake, in order to get Pressure Maintaining?

2. Were any of the first few N&W Diesels delivered with the old H-8 brake valves? I have seen lots of H-8 valves on the Diesel engines of other roads, but cannot recall clearly about the early N&W RS-3s and GP-7s.

Thanks.

-- abram burnett
Turnips Reimagined !