Coming in on the Beam
This may be the right forum to try. It is a few years, fifty one in fact, since I last did a night approach using Standard Beam Approach with landing assisted by goose-neck flares. I remember the existence of front and back beam patterns, the As and the Ns, the steady signal and the beacons, but the detail escapes me. Google is little help. Does anyone know of a publication on topic?