Editing Railway coupling (section)

===WABCO N-Type===
[[File:SEPTA budd-coupler.jpg|thumb|left|[[Westinghouse Air Brake Company|WABCO]] Model N-2 on a [[SEPTA]] [[Budd Silverliner|Silverliner II]]]]
The WABCO N-Type coupler was first developed for the prototype [[Pittsburgh]] [[Transit Expressway Revenue Line|Skybus]] system with the initial model N-1 as applied only to the three Skybus cars. The updated model N-2 with a larger {{convert|4|in|1|adj=on}} gathering range was first applied to the new "Airporter" rapid transit cars on the [[Red Line (Cleveland)|Cleveland Rapid Transit]] line. The model N-2 used lightweight draft gear slung below the center sill, to allow for the wide swings required to go around sharp curves. This made the N-2 unsuitable for main line railroad use so an updated version N-2-A was developed for that market. The first of these were fitted in 1968 to the [[UAC TurboTrain]] with 228 electrical contacts and the [[M1 (railcar)|Budd Metropolitan EMU]] with 138 contacts. Starting in the 1970s the N-2-A was fitted to the entire [[SEPTA]] [[Silverliner]] family of MU's, the [[NJ Transit Rail Operations|NJT]] [[Arrow (railcar)|Arrow]] series of MU's and the [[Metro-North Railroad]]/[[Long Island Rail Road]] M series of MU railcars. The N-2 was also used by the [[PATCO Speedline]], but was replaced due to issues with the electrical contacts. Later WABCO would create a new model N-3 for the [[Bay Area Rapid Transit|BART]] system with a {{convert|6|×|4|in|1|adj=on}} gathering range which required a rectangular funnel.

The WABCO N-type is sometimes referred to as the '''pin and cup coupler''' or '''spear coupler'''.
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