The Sikumbang awaits another flight from Husein Sastranagara Air Force Base at Bandung, with an AURI Consolidated PBY in the background. The pilot sat just above the leading edge under a sliding cockpit canopy which provided an excellent view in all directions.

The sole NU-200 Sikumbang aloft after its first flight in August 1954. Bearing a large “X” on the tail to denote its experimental status, the “Bee” also carried the nation’s red-and-white pentagon marking and the serial “01”. The bare-metal fuselage was wrapped with a yellow band and the upper surfaces and fin were orange-red.

An air-to-air study of the NU-200, the first original design of the Air Force's Experimental Section which commenced flight testing in August 1954, showing the aircraft’s straight-tapered wing, which was of single-piece wooden construction with an aspect ratio of 6-5:1. Contemporary press reports highlighted the NU-200’s similarity in intended role to the USA’s Fletcher FD-25 Defender COIN aircraft, which was not adopted by American forces.
This aircraft is today mounted on a pedestal at the entrance of the Nurtanio factory.

Major Nurtanio Pringgoadisuryo stands beside the NU-200 Sikumbang on its roll-out at Bandung in the summer of 1954. For this article we have used the Indonesian custom of putting the surname first.

The cockpit of the NU-200 was relatively simple, but included all the necessary basics, including altimeter, r.p.m. gauge, airspeed indicator, turn-and-bank indicators, compasses, fuel gauge, climb meter and manifold­pressure gauge. The throttle box was located on the port side, above the trim-control equipment, seen at LEFT.

Belalang Model 90A - переоборудованный учебно-тренировочный Piper L-4 с улучшенными летными характеристиками.
The upside-down Cub - with its name and a grasshopper motif on the forward fuselage, a production NU-90 Belalang meanders over the Indonesian countryside. Quite why the Indonesians considered the low-wing Belalang an improvement over the high-wing Cub from which it was derived remains something of a mystery.
The series version of the Belalang, the NU-90, with redesigned cockpit canopy and other changes.

The tapered wings and swept fin of the NU-25 Kunang were replaced in stages on the NU-35 Super Kunang, probably built using the same airframe, initially with a constant-chord wing of 25 per cent greater area and later an unswept fin, as seen here. An uprated 35 h.p. Volkswagen engine was also fitted.

Designed as an economical single-seat ultra-light training aircraft for pilots of very limited experience, the NU-25 Kunang first flew circa 1957-58, and was roughly equivalent to the Druine Turbulent in terms of size and performance. The same aircraft, “04”, was later fitted with a 35 h.p.engine and an enclosed cockpit with canopy.