Nepal Airlines Corporation (Nepali: नेपाल वायुसेवा निगम) is the flag carrier airline of Nepal. Its head office is in the Nepal Airlines Corporation (NAC) Building in Kathmandu, and its main base is Tribhuvan International Airport, Kathmandu. The airline was established in July 1958 as Royal Nepal Airlines Corporation (RNAC) to be Nepal's first airline. The airline's first aircraft was a Douglas DC-3, used to serve domestic routes and a handful of destinations in India. The airline acquired its first jet aircraft, Boeing 727s, in 1972. As of February 2017, the airline operates a fleet of eleven aircraft.

The airline was established in July 1958 as Royal Nepal Airlines Corporation with one Douglas DC-3. At the beginning, its services were limited to Simara, Pokhara, Biratnagar and Indian cities such as Patna, Calcutta and Delhi. In 1961, Pilatus Porter STOL aircraft joined the fleet, and in 1963 12-seater Chinese Feng Shou-2 Harvesters were brought into service, opening up the kingdom’s more remote routes.

Nepal's geopolitical situation produced a strange, politically mixed fleet, which was typically financed through aid programs from the country of manufacture. Seven more Douglas DC-3s were added to the fleet between 1959 and 1964. Furthermore, China supplied a couple of Feng Shou-2 aircraft which did not enter scheduled service. Bell Helicopters leased from Singapore were also used for charters. Two Russian Mi-4 helicopters also flew on scheduled routes to remote points. The route network was expanded internally and externally, soon reaching Dhaka in what was then East Pakistan.

...
Wikipedia