Number 90 posted:I can't understand why someone affiliates with the group says that the air brake equipment cannot be used with PTC.
This locomotive was built with 8-ET air brake schedule, and was formerly equipped with Automatic Train Stop. 3460 Class Santa Fe steam engines, also built with 8-ET air brake schedule, were equipped with both Automatic Train Stop and Automatic Train Control (cab signals). I might add that Southern Pacific 4449 also was built with 8-ET and HSC air brake schedule, and that group has not been complaining about incompatibility with PTC.
Obviously Number 8 air brake equipment can initiate a penalty application when commanded by a train stop device. So, what's the problem?
Tom,
Also lets not forget the UP steam locomotives, i.e. 844 and 3985, the she was operational. Both were fitted with UP's cab signal equipment, way back in the steam days, and after the merger with Chicago & North Western, both locomotives were up-graded with the latest electronic/solid state UP cab signal and CNW Automat Train Control. Both UP locomotives, as well as the under restoration 4014, are equipped with 8ET air brake schedules.
Apparently someone at the 2926 group is confused.
