Cairo and Delhi in 1929 a sixth Hercules, the City of Basra entered service. With the fatal loss of the City of Jerusalem in September 1929 a seventh new aircraft was ordered and delivered in January 1930. With the aircraft now out of production when the City of Tehran forced-landed and was destroyed, Imperial Airways bought an aircraft from West Australian Airways to replace it. In 1931 two experimental air mail services between Croydon, England and Melbourne, Australia were attempted. The City of Cairo was to fly the mail from Karachi to Australia but ran out of fuel and forced landed at Koepang on 19 April 1931. West Australian Airways was approached again and another aircraft was sold to Imperial Airways. On the delivery flight to Karachi it carried the first through Australia to England mail. In December 1931 the former West Australian Airways, City of Cape Town operated a survey flight to Cape Town pending the extension of the Empire Air Route to South Africa. The City of Cape Town was briefly used in South Africa from October 1932 until 1933 by Sir Alan Cobham for his itinerant air pageant. The City of Jodhpur was used in an aerial ant-locust campaign in Rhodesia in 1934 and the following year it crashed into a swamp near Lake Salisbury in Uganda and was destroyed. Imperial withdrew the Hercules from service between 1934 and 1935; three were sold to the South African Air Force. South Africa Air Force The South African Air Force bought three Hercules from Imperial Airways in 1935.. At the start of the Second World War they were used as military transport aircraft supporting South African forces around Africa. One was broken up for spares in 1939 and the other two were withdrawn from service and scrapped in 1943. Stephens Aviation Two former West Australian Airways aircraft, the City of Perth and the City of Adelaide were operated on the ferry service in New Guinea between Lae and Wau from 1936. The City of Perth crashed in February 1941 and the City of Adelaide was destroyed by enemy action in 1942. West Australian Airways West Australian Airways ordered four Hercules aircraft for a new passenger and mail service between Perth and Adelaide. Following acceptance testing in England the four aircraft were shipped to Perth, Australia and re-assembled. The first eastbound service was flown by two aircraft, the City of