R101 Despite the lack of full endurance and speed trials and the fact that a proper investigation of the aerodynamic consequences of the extension had not been fully completed by the N.P.L., a Certificate of Airworthiness was issued on 2 October, the Inspectorate expressing their complete satisfaction with the condition of the R101 and the standards to which the remedial work had been carried out. The actual certificate was handed over to H. C. Irwin, the ship's captain, only on the day of her flight to India. R101 departed from Cardington on the evening of 4 October 1930 for its intended
Alfred Pippard of the R100 and R101 airships. The public enquiry into the latter's crash, which ended British participation in airship development, found no faults with Pippard's work but he withdrew from the field of aeronautical engineering – feeling keenly the loss of several of his friends amongst the 48 dead. During the Second World War Pippard was a member of the Civil Defence Research Committee which met at Princes Risborough and continued his teaching at Imperial College. Pippard was a member of the council of the Institution of Civil Engineers for fifteen years and was their president for the 1958-9 session.