Friday, November 26, 2010

Commercial Aviation


Commercial aviation is the part of civil aviation (both general aviation and scheduled airline service) that involves operating aircraft for hire to transport passengers or cargo.
In most countries, a flight may be operated for money only if it meets three criteria:
  • the pilot must hold a valid commercial pilot's certificate
  • the aircraft must hold a valid commercial registration
  • the operator must hold a certificate or some other authorization for commercial operations
There are some exceptions — for example, a flight instructor is normally allowed to fly for money in a private aircraft owned by the student — but the above requirements hold for most flights where money changes hands.
Typically, a commercial certificate or registration requires higher standards than a private one. For example, a commercial pilot may have to demonstrate more maneuvers to a higher standard, and may need to pass more frequent medical examinations. A commercially-registered plane may require more frequent or more extensive maintenance.
It is the purpose of the flight, not the type of aircraft or pilot, that determines whether the flight is commercial. For example, a two-seat Cessna 150 towing a banner for money would be a commercial flight, while a large jet flown by its owners for a private vacation would not be, even if the pilots were commercially certificated and the jet were commercially registered.


Route map of the world's scheduled commercial airline traffic, 2009

Thursday, November 11, 2010

Aviation Introduction


Aviation or Air transport is the design, development, production, operation, and use of aircraft.
So it basically refers to the activities surrounding mechanical flight and the aircraft industry.
Aircraft, include fixed wing (airplane) and rotary wing (helicopter) types, as well as lighter than air craft such as balloons and airships (also known as dirigibles.)
Aviation can be broadly divided into three areas:

*  Commercial Aviation
  •       is the part of civil aviation (both general aviation and scheduled airline service) that involves operating aircraft for hire to transport passengers or cargo.
*  General Aviation
  •       is one of the two categories of civil aviation. It refers to all flights other than military and scheduled airline and regular cargo flights, both private and commercial. General aviation flights range from gliders and powered parachutes to large, non-scheduled cargo jet flights. The majority of the world's air traffic falls into this category, and most of the world's airports serve general aviation exclusively.
*  Military Aviation
  •       is the use of aircraft and other flying machines for the purposes of conducting or enabling warfare, including national airlift (cargo) capacity to provide logistical supply to forces stationed in a theater or along a front.