I believe only the early USAF 104's fired downwards but i could be wrong . Nato forces flew the G's and I would think they all fired up.From Bill Gunston's 'Fighters of the Fifties' re F-104;
"There was, however, one large drawback on the whole programme. Largely because pilots and ground crews were generally inexperienced, the Luftwaffe suffered unacceptable loss-rates, the figure in 1962 being 139 per 100,000 hours. Even in the mid-1960s a Starfighter crashed roughly every ten days, and in many cases the pilot was killed. There followed a political battle to fit the British Martin-Baker ejection seat. American (Lockheed/USAF) pressure prevented it until 1967 (by which time the Danes had quietly had British seats already fitted) when, with no publicity by the British company, they fitted the reliable GQ-7 seat to the Italian and then the German Starfighters".
Originally the seats fired downwards. Which way did the Canadian version 'fire'?