FIELD: machine building.
SUBSTANCE: invention relates to the field of creating vehicles using a dynamic air cushion. Disclosed is a device for reducing hydrodynamic resistance of a ship hull bottom on a compressed airflow, comprising a body with a keeled fore end and onboard planing skegs. Between skegs there is a slightly higher located bottom of closed pneumatic channel, to which to form an air cavity under bottom of closed pneumatic channel is fixed main longitudinal air supply pipeline, which is made in the form of a tube-eddy collector with C-shaped longitudinal redans, following each other along the length of the main air pipeline and located at a certain distance above the lower support ends of skegs. Points of intersections of C-shaped longitudinal edges are located on outlets of the main air pipeline. End of the main air pipeline is tapering in the form of diffuser nozzle. C-shaped are plugged at the end, and their lower part has holes for the compressed air outlet downwards towards the water reference surface.
EFFECT: providing higher stability of the ship during planing and reducing hydrodynamic resistance of the hull bottom, especially when driving on rough sea.
3 cl, 4 dwg
