Abstract: A spray element of an irrigator includes a support shank and a sleeve. The support shank has a hollow channel and an end wall having an inside formed with at least two water outlet holes and an outside formed with a gathering portion and at least two trenches each connected to a respective one of the water outlet holes and the gathering portion. The sleeve has an end wall rested on the end wall of the support shank and formed with a nozzle connected to the gathering portion. When the fluid flowing in each of the trenches impacts mutually, the fine spray is generated and ejected outwardly from the nozzle of the sleeve.

Abstract: A wired flying model airplane manipulation rack for manipulating the flying of a wired model airplane, including a swivel control mechanism having a U-frame turned about a metal axle horizontally through 360.degree. and a swivel member turned within the U-frame vertically over 180.degree., a traction mechanism adapted to change the direction of the applied force of the operator, for permitting the flying model airplane to be controlled to fly horizontally through 360.degree. and turned in different directions.