Unit load device: Difference between revisions

Revision as of 08:35, 24 July 2025

Latest revision as of 12:08, 31 July 2025

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A '''unit load device''' ('''ULD''') is a [[shipping container|container]] used to load luggage, freight, and mail on [[wide-body aircraft]] and specific [[narrow-body aircraft]]. It allows preloading of [[cargo]], provided the containerised load fits in the aircraft, enabling efficient planning of aircraft weight and balance and reduced labour and time in loading aircraft holds compared with 'bulk-loading' single items of cargo or luggage by hand. Each ULD has its own packing list or [[Manifest (transportation)|manifest]] so that its contents can be tracked. A loaded aircraft [[cargo pallet]] secured with a [[cargo net]] also forms a ULD, but its load must be gauged for size in addition to being weighed to ensure aircraft door and hold clearances.

The [[IATA]] publishes ULD regulations and notes there are 900,000 in service worth more than US$1&nbsp;billion, averaging ${{#expr:1000/0.9round-2}} each.<ref>{{cite web |url= https://www.iata.org/publications/store/Pages/uld-regulations.aspx |title= ULD Regulations |publisher= IATA |access-date= 2018-07-13 |archive-date= 2018-07-13 |archive-url= https://web.archive.org/web/20180713202703/https://www.iata.org/publications/store/Pages/uld-regulations.aspx |url-status= dead }}</ref>

==Types==

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| {{#expr:8+7}} LD3

| data-sort-value="3.07" | 3 + 7 LD3

| data-sort-value="3.07" | 3 + 7 LD3 || 15 || 16<ref name= A300-A310P2F>{{cite web |url= https://www.elbeflugzeugwerke.com/fileadmin/pdfs/Brochure_EADS-EFW-A300-A310-Conversions.pdf |title= A300/A310 P2F |publisher= [[Elbe Flugzeugwerke]] |access-date= 2018-07-31 |archive-date= 2018-07-31 |archive-url= https://web.archive.org/web/20180731213043/https://www.elbeflugzeugwerke.com/fileadmin/pdfs/Brochure_EADS-EFW-A300-A310-Conversions.pdf |url-status= dead }}</ref> ||

|-

! [[Airbus A330]]-2/800<ref name=A330>{{cite web |url= https://www.airbus.com/content/dam/corporate-topics/publications/backgrounders/techdata/aircraft_characteristics/Airbus-Commercial-Aircraft-AC-A330.pdf |title= A330 Aircraft Characteristics - Airport and Maintenance Planning |date= Jul 2018 |publisher= Airbus}}</ref>

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| data-sort-value="6.14" | 6 + 14 LD3 || 26 || 26 || 34

|-

! [[Lockheed L-1011]]<ref>{{cite web |url= https://www.tristar500.net/articles/techprofile.pdf |title= L-1011-500 TriStar technical profile |publisher= Lockheed |access-date= 2018-07-31 |archive-date= 2017-12-08 |archive-url= https://web.archive.org/web/20171208144003/http://www.tristar500.net/articles/techprofile.pdf |url-status= dead }}</ref>

| {{#expr:12+7}} LD3

| data-sort-value="4.07" | 4 + 7 LD3 || || || ||

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! [[Airbus A320]]<ref name=A320>{{cite web |url= https://www.airbus.com/content/dam/corporate-topics/publications/backgrounders/techdata/aircraft_characteristics/Airbus-Commercial-Aircraft-AC-A320-Feb18.pdf |title= A320 Aircraft Characteristics - Airport and Maintenance Planning |date= Feb 2018 |publisher= Airbus}}</ref>

!

| {{#expr:3+4}} LD3-45 || || 11<ref name=A320-A321P2F>{{cite web |url= https://www.elbeflugzeugwerke.com/fileadmin/pdfs/EFW_A320_A321P2F_six_pager.pdf |title= A320/A321 P2F |publisher= Elbe Flugzeugwerke |access-date= 2018-07-31 |archive-date= 2018-07-31 |archive-url= https://web.archive.org/web/20180731183429/https://www.elbeflugzeugwerke.com/fileadmin/pdfs/EFW_A320_A321P2F_six_pager.pdf |url-status= dead }}</ref> ||

|-

! [[Airbus A321]]<ref name=A321>{{cite web |url= https://www.airbus.com/content/dam/corporate-topics/publications/backgrounders/techdata/aircraft_characteristics/Airbus-Commercial-Aircraft-AC-A321-Feb18.pdf |title= A321 Aircraft Characteristics - Airport and Maintenance Planning |date= Feb 2018 |publisher= Airbus}}</ref>

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| [[BAe 146]]-200<ref>{{cite web |url= http://www.pionair.com.au/news/bae-146-200qc/ |title= BAe 146-200QC arriving April 2013 |date= March 28, 2013 |publisher= Pionair |access-date= November 11, 2018 |archive-date= December 18, 2018 |archive-url= https://web.archive.org/web/20181218010147/http://www.pionair.com.au/news/bae-146-200qc/ |url-status= dead }}</ref>

| 9 || || || || 6 || 4

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| [[ATR 72]]<ref name=ATRfamily>{{cite web |url= http://www.atraircraft.com/products_app/media/pdf/FAMILY_septembre2014.pdf |title= ATR Family |publisher= ATR |date= Sep 2014 |access-date= 2018-11-11 |archive-date= 2017-05-16 |archive-url= https://web.archive.org/web/20170516192620/http://www.atraircraft.com/products_app/media/pdf/FAMILY_septembre2014.pdf |url-status= dead }}</ref>

| 7 || || || 9 || 5 ||

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| [[Xian MA600]]<ref>{{cite news |url= https://cargofacts.com/a-new-small-freighter-from-china/ |title= A new small freighter from China |author= David Harris |date= January 10, 2013 |work= Cargo facts }}{{Dead link|date=July 2025 |bot=InternetArchiveBot |fix-attempted=yes }}</ref>

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