बाज़🦅 आ रहा है ~ सिलीगुड़ी WDP-4 20000 Series - Niraj Kumar

LHB and a hybrid LHB one
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1. Pure LHB Coach:
These coaches were imported from Alstom LHB (Geramany). These coaches have a stainless steel shell mounted on FIAT bogies fitted with Disc breaks. The coaches are longer than the ICF coaches and due to this, they were able to accommodate more passengers per coach and all the coaches of this design have...
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CBC couplers. Even though the coaches were imported with ToT (transfer of technology) localisation has not reached the bogies and due to this, the FIAT bogies are being imported and are expensive. These type of coaches are certified fit to run at 160 Kmph.
2. Hybrid LHB coach :
We can either call it an innovation/cost cutting by RCF, which mounted the LHB shell on improved ICF bogies by including a Yaw dampner for improved riding quality. But due to this, the MPS of such Hybrid coaches has been restricted to 130 Kmph. The comments are that, even with improved ICF bogie, the ride quality is bad than the original LHB coaches with FIAT bogies. To give you an example the 12007/08 MAS-MYS shat is a pure LHB rake while MAS-NZM Duranto is a Hybrid rake with LHB shell and ICF bogies.