I lived in Egypt in the late 60's and this was the shuttle plane between Cairo and Alexandria. I made numerous trips with my dad who was an oilfield manager. The plane constantly vibrated and like the previous poster said, was extremely noisy. United Arab Airlines (now EgyptAir) also used this model to fly from Alexandria to Athens. I flew it once and with the longer distance the left engine was smoking by the time we landed. The flight attendant said this is normal. LMAO.