Accession Number : AD0648848

Title :   A STUDY OF THE EFFECTS OF REGULAR WAVES ON THE LANDING AND TAKE-OFF DISTANCES OF A SEAPLANE,

Corporate Author : GENERAL DYNAMICS SAN DIEGO CALIF ELECTRIC BOAT DIV

Personal Author(s) : Hopkins,R. M.

Report Date : JUL 1966

Pagination or Media Count : 77

Abstract : A study is being conducted which attempts to define the effects of waves on the take-off and landing distances of a seaplane with a conventional bull. The study is implemented by a three degree of freedom analog simulation of the seaplane responses to the aerodynamic, hydrodynamic, buoyant, and skin friction forces which are considered to be operative. Comparisons with towing tank model data are made to verify the current degree of validity attained. Possible causes of the imperfections revealed are discussed. Some correlation with a previous study is found, but while post-hump resistance increases, to date no clear trends for the effects of wave parameters on the take-off and landing distances are found except for a noticeable reduction in lift-off speed. (Author)

Descriptors :   (*SEAPLANES, FLIGHT), (*LANDING, SEAPLANES), (*TAKEOFF, SEAPLANES), HYDRODYNAMICS, AERODYNAMICS, BUOYANCY, SKIN FRICTION, OCEAN WAVES, EQUATIONS OF MOTION, SIMULATION

Subject Categories : Aerodynamics

Distribution Statement : APPROVED FOR PUBLIC RELEASE