Aircraft Propulsion
A powered aircraft is an aircraft that uses onboard propulsion with mechanical power generated by an aircraft engine of some kind. Aircraft propulsion nearly always uses either a type of propeller, or a form of jet propulsion. Other potential propulsion techniques such as ornithopters are very rarely used. Methods of propulsion Rotating aerofoils Propeller aircraft A propeller or airscrew comprises a set of small, wing-like aerofoil ''blades'' set around a central hub which spins on an axis aligned in the direction of travel. The blades are set at a '' pitch'' angle to the airflow, which may be fixed or variable, such that spinning the propeller creates aerodynamic lift, or ''thrust'', in a forward direction. A ''tractor'' design mounts the propeller in front of the power source, while a '' pusher'' design mounts it behind. Although the pusher design allows cleaner airflow over the wing, tractor configuration is more common because it allows cleaner airflow to the prope ...
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Alitalia
Alitalia - Società Aerea Italiana Società per azioni, S.p.A., operating as Alitalia (), was an Italian airline which was once the flag carrier and largest airline of Italy. The company had its head office in Fiumicino, Metropolitan City of Rome Capital. The airline was owned by the Government of Italy from its founding in 1946 until it was Privatization, privatized in 2009; after struggling with profitability while a private company, including failed negotiations to sell to other private parties, the Italian government took ownership of the airline in March 2020. The airline operated a fleet of Airbus A319-100, Airbus A320-200, Airbus A321-100, Airbus A330-200, and Boeing 777-200ER aircraft to over 34 scheduled domestic, European and intercontinental destinations. The airline operated from its main hub at Leonardo da Vinci–Fiumicino Airport. The airline was a full member of SkyTeam alliance, and it had codeshare agreements with 42 airlines. In 2018, the airline was the List ...
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