Progress statement no. 5 for APT (POP and E-train) suspension manufacture at BREL: Derby locomotive works (IM-SUS-154)

The following statement records in chronological order the items released for manufacture for the Swinging-Arm El Bogies, Also recorded are the manufacturing completion dates. This statement should be read in conjunction with [text omitted as illegible] 150, Manufacturing Schedule for APT Experimental Suspensions.