Reference

Demi

Half-width main deck. Full IATA code, rate class, weights, volume and aircraft compatibility below.

Demi unit load device
IATA ULD code
AYY contoured container on half pallet base
Rate class
Type 7
Aircraft compatibility
727F, 737F, 757F, 747F, 767F, 777F, DC-10F, MD-11F main deck
Maximum gross weight
3,016 kg (6,649 lb)
Tare weight
80 kg (176 lb)
AS1825 volume
5.8 m³ (206 ft³)

About the Demi

A half-width main-deck container with a contoured top, built on a half-pallet base.

It lets a freighter main deck be filled in half-width increments instead of full-width units only — useful where a consignment does not justify a full container, or where the load plan needs weight balanced across the deck. At 80 kg its tare is remarkably low for a main-deck unit.

What it carries

  • General air freight
  • Part-load consignments
  • Mixed cargo

How it is built

  • A half-width main-deck container with a contoured top, built on a half-pallet base.
  • A heavier structural section than lower-deck equipment, sized to fill the main cargo deck of a freighter or Combi.
  • Rectangular or upper-contoured in profile, depending on where in the deck the unit is positioned.
  • A solid or canvas door with net straps, and base rails matched to the main-deck restraint system.

Why it is used

  • Far higher gross weight and volume per unit than any belly-hold ULD.
  • Loads through the main cargo door in one lift, which is what makes freighter turnarounds fast.
  • Suits dense or bulky consignments that would otherwise need several lower-deck units.

What to check before booking

  • Loadable only on freighters and Combi aircraft that have a main-deck cargo door.
  • Some positions accept centre loading only, which limits where the unit can be placed.
  • Handling needs main-deck loaders, so not every station can accept it.
All ULD types

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