SingaporeAirlinesPostcard-1 Singapore Airlines Postcard. SIA Boeing 707 Superjet. Note: In 1968, the Boeing 707 started to be the mainline of aircraft. SingaporeAirlinesPostcard-2 Singapore Airlines Postcard. Back of Postcard Information: Our exclusive fleet now includes the magnificent 747 Super-Bs, 747Bs, DC10s, 707 Superjets, 727 Hightails and the A300 Superbus. SingaporeAirlinesPostcard-3 Singapore Airlines Postcard. SIA 747B – […]