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R711 Air Compressors
22-Oct-1998:
Air Compressors.
This head-on shot of R711 shows the (tops of) the two single stage air compressors. Cross-compound compressors were usually fitted to goods- or dual-purpose locos, whereas all R classes only had one single stage compressors. Fitting a second compressor ensures a rapid recovery of pressure after a brake application.
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