Model testing technique employed in the R.A.E. seaplane tank

Abstract

A description is given of the various techniques evolved in recent years to provide model data as a basis for predicting the full-scale behaviour of a seaplane. The seaplane tank and associated equipment is described in detail, together with the routine methods of operation. The factors affecting the choice of model scale are discussed and the methods of model construction described. A description is given of a typical test programme on a new design to determine the longitudinal and lateral stability on the water, spray and rough water behaviour and water drag. This description is illustrated with typical results for a modem conventional hull of length : beam ratio of about 7. Finally, the design factors affecting the longitudinal stability and spray formation are discussed in Appendices.