RAE's system has all advantages of V-type pattern and appears to be based on better principle; system takes into account more accurately what pilot needs in way of lights when approaching to land with SCS-51 or some other navigational aid; apart from provision of horizon level at regular intervals, cross-bars are placed so that they provide optical illusion of being same width provided descent is being made at constant rate. (see also Engineer v 185 n 4814 Apr 30 1948 p 420-1; Engineering v 165 n 4297 June 4 1948 p 551)
Cross-bar night landing system
Aeroplane
Aeroplane ; 74 , n 1925
1948
2 pages
Article (Journal)
English
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