1969 Aswan Ilyushin Il-18 crash 1969 Aswan Ilyushin Il-18 crash On 20 March 1969, a United Arab Airlines Ilyushin Il-18 crashed while attempting to land at Aswan Airport. 100 of the 105 passengers and crew on board were killed in the crash. The flight was a non-scheduled international passenger service from Jeddah, Saudi Arabia to Aswan, Egypt. The aircraft was carrying home Muslim worshippers who had won a pilgrimage through a lottery. It was dark in the early morning when the flight attempted to land and blowing sand had reduced visibility to 2–3 kilometers. After two unsuccessful attempts to land, the aircraft was making a
Hydropower policy in the United States of 90% efficiency. More importantly, Francis's mathematical and graphical calculation methods advanced turbine design and engineering and allowed confident design of high efficiency turbines to exactly match a site's flow conditions. In the 1870s and deriving from uses in the mining industry, the high efficiency Pelton wheel impulse turbine was developed to use hydropower under very different flow and pressure conditions. Advances in dam design also progressed, with the completion of Old Aswan Dam being considered a milestone of engineering over nature. At the time of its construction, nothing of such scale had ever been attempted: it also became one