The result of a collaboration between a Government research institute and the Philippine Air Force, it was designed as a utility, liaison or ambulance aircraft and as a test bed for the use of local materials in aviation.

It was a single-engine, high-wing monoplane with a twin-boom layout and tricycle undercarriage to enable easy access to the fuselage pod via rear doors.

There were two front seats under the wing leading edge, two more behind and room for one or two (stacked) stretcher cases.

The cabin had two windows on each side and the rear part of the pod, which projected behind the wing trailing edge, was also extensively glazed.

By 1956 some small modifications had been made: rudder area was increased and a shimmy-damper added to the nosewheel leg.