The NU-85 Belalang is an Indonesian two-seater primary trainer aircraft developed as a modification of the Piper Club L-4J aircraft, and first flown in 1958. The Belalang is a low-wing rigidly-braced monoplane powered by a Continental C85-12 four-cylinder horizontally-opposed air-cooled engine providing a top speed of 184 kmh and a range of 560 km....