Wellington Aero Club formed in 1928 and asked Wellington City Council to set aside land for an airport. In October 1928, the Council agreed to the proposal and allocated reserve land at Lyall Bay for the purpose. Up to 150 labourers levelled the sand dunes and laid down a surface of broken rock and clay to stop the sand blowing away. This was then sown with grass. The official opening of the airport took place on 16 November 1929 with flying displays by 15 aeroplanes doing "crazy flying", "bombing" and races. The runway, which ran in a northwest to southeast alignment to match prevailing winds in the area, was extended in 1933. The first timetabled commercial flights into Rongotai Airport took place on 30 December 1935, when two de Havilland Express biplane airliners of Cook Strait Airways with paying passengers flew in from Nelson and Blenheim. During this period, concerns about safety were raised. Early aviator Charles Kingsford Smith flew into Wellington and was said to be "perturbed" about conditions at Rongotai, where wind swirled around and the hills were very close. Along with others, he believed that Gear Island at the mouth of the Hutt River in Petone would be a better site for a commercial airport. A scale model of the landscape around the airport was made and tested in a wind tunnel, and, starting in 1936, the height of Moa Point Hill at the eastern end of Lyall Bay was lowered to improve the approach to the runway. In 1937 a government committee investigated possibilities for improving the airport, but its suggestion that a runway be constructed from north to south across the isthmus from Evans Bay to Lyall Bay, which would have entailed removal of Rongotai College and demolition or removal of up to 150 houses, was deemed unpalatable. The runway was extended and other improvements made, but the 1937 committee had warned that the airport was not safe, and finally on 27 September 1947 the airport closed and almost all commercial flights were moved to Paraparaumu Airport, 35 miles (56 km) north of Wellington. Paraparaumu Airport soon became the country's busiest airport, but it was deemed unsuitable for large aircraft due to adverse terrain. Between 1950 and 1954, TEAL (the forerunner of Air New Zealand) also operated flying boats to Australia from a base in Evans Bay. Rongotai was still used for a frequent service to Blenheim and Nelson in 14-seater de Havilland Herons. Wellington Aero Club continued to operate from Rongotai, and the airport was also used occasionally by Royal New Zealand Air Force aircraft as well as ambulance aircraft transporting patients to Wellington Hospital. The Aircraft Engineering Company had a flying school with three aeroplanes based at the airport, and the de Havilland Aircraft Company had an aircraft maintenance facility. With the closure of Rongotai Airport, the government had invited a British commission to report on New Zealand airports. The Tymms Report produced in 1948 recommended that the isthmus at Rongotai was still the best site for an airport in Wellington, and Wellington City Council and the Chamber of Commerce also lobbied for the airport to be retained there. After several options for development were considered, Wellington City Council agreed to the Rongotai Terrace scheme in February 1951. This scheme saved Rongotai College and provided for a north-south runway. A major part of the scheme involved the complete removal of Rongotai Hill. Construction of the airport began in 1953, with the six-year project costing £5 million (equivalent to $366,800,000 in 2026). Spoil from Rongotai Hill was used to reclaim land in Evans Bay and Lyall Bay. About 180 houses at Rongotai Terrace and Wexford Road on the hill were demolished or relocated to the newly reclaimed land at Evans Bay. Coutts Street had previously been the main road and tram route between Kilbirnie and the Miramar Peninsula, but the new runway cut the street in two.