WIWO WW`s in the Far East we had SHNAPS or GAPS (Seletar helicopter night approach path system)(Gurkha app.path system),to get on into clearings at night. The SHNAPS was for training, GAPS operational,basically similar utilising 5 torches(2 red lenses),and 5 Gurkhas; 2 were stood facing the best /lowest approach holding the red torches on their head,about 5 yds apart; the other 3(white) lay on a line about 6yds behind,parallel,and 5 yds apart.As a Gurkha is about 5ft tall(ish),the rear line can be moved closer/further from the front to give approach angles of 5-15/20 deg(1 in 60).If the `reds were above the whites,you were too low,and vice-versa,and if the lights went out,the LZ was` hot`! Syc...