2D-019-205 Class 43 HST Virgin Twin Pack 43080 (Buffers) & 43091 (No Buffers) HST Twin PackSet requires to 2 X Next 18 decoders to be run digitally. The British Rail Class 43 (HST) was designed by BR Derby and manufactured at BREL Crewe between 1975 and 1982. Many would say the HST reflects the pinnacle of diesel locomotive design, holding and retaining the world speed record for a diesel locomotive. In all 197 diesel power cars were manufactured to provide a high speed passenger service in a time when public budgets were constrained and