Gaseous entrainment by banks of multiple fan sprays is investigated. The results show that an effectively isolated single fan spray has a higher entrainment efficiency than one within an assemblage. A hypothesis is presented that the reduction in efficiency is caused by gas flow mutually decreasing the relative gas drop velocity of its neighbors and hence the drag force. Spray nozzle configurations have been devised for maximizing the relative velocity and hence entrainment. It is found that although entrainment is affected by nozzle size, it is controlled primarily by liquid loading.