The objectives of this research were to develop an air blast sprayer and to determine the field capacity and efficiency of the air blaster sprayer which had been installed to the side car of a motorcycle. The sprayer was consisted of a centrifugal blower, an angle adjustment, a wind distributor, an LPG engine, a hollow injector, and a DC motor pump. The sprayer was then installed to the side car of a motorcycle or an ATV (All – Terrain Vehicle).
