04015235 is referenced by 11 patents and cites 10 patents.

An optical system for guiding the pilot of a ground-maneuvering aircraft towards a parking bay has, an illuminated target positioned behind a fixed stop aperture along a line of sight of the pilot which is inclined to the direction of approach of the aircraft to the bay. As the aircraft advances different areas of the target come successively into sight by parallax, and these may be differently colored to indicate the correct stopping position and also whether the aircraft is to the left or right of the correct approach line.

Title
Aircraft parking guidance indicator
Application Number
5/584528
Publication Number
4015235
Application Date
June 6, 1975
Publication Date
March 29, 1977
Inventor
Richard Lawrence Fisher
Leeds
EN
John David Archer
Halifax
EN
David George Anthony Demaine
Leeds
EN
Agent
Brisebois & Kruger
Assignee
The Rank Organisation
EN
IPC
G08G 5/00
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