Paya Lebar Air Base — Paya Lebar, Singapore

QPG designates Paya Lebar Air Base, a Republic of Singapore Air Force installation in the Paya Lebar area of Singapore, which historically served as the country's main civilian airport before Changi Airport opened in 1981. Today QPG functions purely as a military base hosting fighter squadrons and air defense operations, though it also handles some shared or occasional civil use under Singapore's dual-use airspace arrangements. The base sits in a now densely urbanized part of Singapore, and there have been long-standing government discussions about eventually relocating its operations to free up land for civilian development. Paya Lebar's history as Singapore's original international gateway makes QPG a notable link between the city-state's aviation past and its current military infrastructure.