Share

WIKIPEDIA ARTICLE

From Wikipedia, the free encyclopedia
  (Redirected from Commonality)
Jump to navigation Jump to search
Southwest Airlines has operated a pure Boeing 737 fleet since 1971, operating nearly every variant of the type.

Aviation commonality describes the economic and logistic benefits of operating a standardized fleet of aircraft that share common parts, training requirements, or other characteristics.

Different types of commonality[edit]

An Air France Airbus A300 in 1974.
The first client of Airbus is among the companies who have (or have had) all the Airbus models (A300, 310, 318, 319, 320, 321, 330, 340, 380, and future 350). According to Air France, the subsequent commonality within the fleet has a "significant economic impact"[1]

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

  • for civilian aircraft:
    • By model, same generation (e.g. Boeing New Generation 737-700, 737-700ER, 737-700C)
    • By model, different generations (e.g. Boeing New Generation 737-700 and MAX 737-7)
    • By family (e.g. Boeing 737)
    • Between families (e.g. deck, between Boeing 767-400ER, 777 and 737 NG)
    • By manufacturer (e.g. Boeing)
    • By engine (e.g. Rolls-Royce RB211)
    • Any combination of the above
  • for military aircraft, the same can be said:
    • By model, same generation
    • By model, different generations (e.g. General Dynamics F-16A/B, multirole F-16C/D)
    • By family (e.g. General Dynamics F-16)
  • Commonality can also be seen in engines :
    • By family, same generation (e.g. RR Trent,[2] GE T700[3])
    • By family, different generations (e.g. CFM 56-2, -3, -5, -7 [4])
    • Between aircraft (Pratt & Whitney's F100 with the F-15 and F-16 fleet[5])

Examples for civilian aircraft[edit]

Airbus and Boeing have commonality in their products within and across families.

Airbus A330 and A340 families[edit]

The A330 and A340 share many common features. The same cockpit is shared between the A330 and A340, however the A340 controls four engines instead of two on the A330. The A330 and A340 share the same wings, nose, tail and horizontal stabilizers. The A340 features an extra bogie of landing gears under the belly to support extra weight. The A330-300 and A340-300 share the same fuselage and wings, however with the A340-300 featuring an extra bogie of landing gears under the belly, and powered by four engines instead of two.

Boeing 757 and 767 families[edit]

The 767-400ER shares common features with the 757/767 family of airplanes, including a common pilot type rating between the 757 and 767. This allows any pilot trained to fly one model to be qualified to fly the other model with minimal additional instruction. Compatibility with the 757/767 family means that operators can gain better access to the demanding medium-size market (200-300 seats) by matching the appropriate airplane to variable requirements. They can also improve operating efficiency through lower training requirements, greater flexibility in assigning flight crews, and reduced spares inventories.[6]

Boeing 767-400ER, 777 and 737NG[edit]

The new 767-400ER flight deck makes the airplane easier to maintain and provides flexibility for operators to tailor the flight-deck equipment to their training needs. A new instrument panel and avionics package consolidate 67 different flight deck parts to 20, simplifying 767 maintenance and improving flight crew efficiency.

On the instrument panel, the most notable change on the 767-400ER is the use of six large liquid-crystal displays in the same arrangement as the Boeing 777 and Next-Generation 737 flight decks. Pilots of these models receive similar information in a similar format. This significantly reduces training requirements to transition pilots of these other Boeing models to the 767-400ER.[6]

Notes and references[edit]

  1. ^ ""L'Airbus A318 rejoint la famille A320 d'Air France"" (PDF). Archived from the original (PDF) on 2016-03-04. Retrieved 2012-01-12.
  2. ^ Trent XWB decision through Total Care programme
  3. ^ "T700 Commonality Benefits Army and Apache Longbow Engine Upgrades". Archived from the original on 2012-03-09. Retrieved 2012-04-23.
  4. ^ "The CFM 56 engine family". Archived from the original on 2012-04-03. Retrieved 2012-04-23.
  5. ^ General Electric, Pratt & Whitney Battle To Supply F-15K Engines
  6. ^ a b Boeing 767 Family

Disclaimer

None of the audio/visual content is hosted on this site. All media is embedded from other sites such as GoogleVideo, Wikipedia, YouTube etc. Therefore, this site has no control over the copyright issues of the streaming media.

All issues concerning copyright violations should be aimed at the sites hosting the material. This site does not host any of the streaming media and the owner has not uploaded any of the material to the video hosting servers. Anyone can find the same content on Google Video or YouTube by themselves.

The owner of this site cannot know which documentaries are in public domain, which has been uploaded to e.g. YouTube by the owner and which has been uploaded without permission. The copyright owner must contact the source if he wants his material off the Internet completely.

Powered by YouTube
Wikipedia content is licensed under the GFDL and (CC) license