In November 1931 he was pilot of 'Horsa', the first H.P. 42, on a leisurely trip to Heliopolis via Paris, Lyons, Marseilles, Pisa, Rome, Naples, Catania, Malta, Tripoli, Sirte and Marsah Mutra. "Ample time will be spent at each stopping place". The flight took seven days.

Awarded Master Pilot's Certificate in 1934

September 1934: "Captain Alcock is a younger brother of the late Sir John Alcock, who made the first Atlantic flight in 1919. After a period of service in the Royal Air Force, Capt. Alcock joined Imperial Airways in 1929, and has now flown a distance of more than 750,000 miles"

Promoted to Senior Master in October 1938

d. 1974 in Surrey