Accession Number : ADD001785
Title : Stabilized Horizon Plane System.
Descriptive Note : Patent,
Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON D C
Personal Author(s) : Stevenson,Duncan G
Report Date : 22 Apr 1975
Pagination or Media Count : 4
Abstract : The patent relates to a landing aid whereby a ship has a helicopter landing area and a horizontal plane indicating member with a substantially flat upper surface mounted for angular movement about axes parallel and transverse to the length of the ship. The indicator member is mounted in such a position on the ship and the flat upper surface is of such a size as to be clearly visible to the pilot of a helicopter when landing on the area. Means are provided for maintaining the indicating member in a horizontal attitude.
Descriptors : *Ships, *Helicopters, *Landing aids, *Patents, Level flight, Aircraft landings, Stabilized platforms, Horizontal indicators
Subject Categories : Helicopters
Distribution Statement : APPROVED FOR PUBLIC RELEASE