Aviation

Aviation

Aviation is the design, development, production, operation, and use of aircraft, especially heavier-than-air aircraft. Aviation is derived from avis, the Latin word for bird.-History:...

 commonality describes the economic and logistic

Logistics

Logistics is the management of the flow of goods between the point of origin and the point of destination in order to meet the requirements of customers or corporations. Logistics involves the integration of information, transportation, inventory, warehousing, material handling, and packaging, and...

 benefits of operating a standardized fleet of aircraft

Aircraft

An aircraft is a vehicle that is able to fly by gaining support from the air, or, in general, the atmosphere of a planet. An aircraft counters the force of gravity by using either static lift or by using the dynamic lift of an airfoil, or in a few cases the downward thrust from jet engines.Although...

 that share common parts, training requirements, or other characteristics. Commonality lowers the cost of operating a fleet of aircraft by reducing the quantity and variety of spare parts needed. Pilots and mechanics may also be very quickly "familiarized" to multiple types of aircraft that share common operating and maintenance procedures, reducing downtime.

Commonality policies may be defined in a variety of ways, depending on the operator:

• By model (eg Boeing 737-700)
• By family (eg Boeing 737)
• By manufacturer (eg Boeing
  Boeing
  The Boeing Company is an American multinational aerospace and defense corporation, founded in 1916 by William E. Boeing in Seattle, Washington. Boeing has expanded over the years, merging with McDonnell Douglas in 1997. Boeing Corporate headquarters has been in Chicago, Illinois since 2001...
  
  )
• By engine (eg Rolls-Royce RB211
  Rolls-Royce RB211
  The Rolls-Royce RB211 is a family of high-bypass turbofan engines made by Rolls-Royce plc and capable of generating 37,400 to 60,600 pounds-force thrust. Originally developed for the Lockheed L-1011 , it entered service in 1972 and was the only engine to power this aircraft type...
  
  )
• Any combination of the above