This Technical Memorandum, ESDU TM 95, presents a re-assessment of work completed at Bristol University to determine how spray intensity probe results can best be used to predict the loads resulting when spray impinges on an airframe.

The work is based on ESDU 83042 that gives a method for estimating the location of spray patterns based, in part, on research work at Bristol University using a spray-intensity probe to obtain surveys of spray kinetic pressure behind a wheel running in water. Further work at Bristol University, using a ‘force measuring device' to find the force on a small plate in an attempt to provide an understanding of the spray intensity probe results, was also used.