 These had a four-seat enclosed cabin because Gorst planned to carry fare-paying passengers as well as mail and express parcels.The service was inaugurated on 15 September 1926 after arrangements had been made for the provision of makeshift lights and beacons, and persuading the Standard Oil Company to paint the names of towns on the roofs of its buildings.Despite these precautions, by the end of the winter, three of the M-1 aircraft had been lost.