LD-4 ULD (ALP)
A lower-deck container used in air cargo. Below are its codes, dimensions, weights and the aircraft it is loaded on.
The LD-4 is booked and handled by its IATA code ALP. It takes up to 2,449 kg gross, the unit and its cargo together.
Track air cargo- Volume (m³)
- 5.7
- Max gross weight (kg)
- 2,449
- Tare weight (kg)
- 120
- Rate class
- Type 8
Specifications
- IATA code
- ALP
- Alternate codes
- ALD, AWD, AWZ, DLP, ALB, ALC, AWB, AWC
- Category
- Lower-deck container
- Rate class
- Type 8
- Door opening
- 234 x 155 cm (92 x 61 in)
- Volume (m³)
- 5.7
- Tare weight (kg)
- 120
- Max gross weight (kg)
- 2,449
Aircraft compatibility
- 767
- 777
- 787
Published sheets give the primary code as ALP, which they also give for LD-11; others list AQP for this container. The overlap is unresolved — verify before treating the codes as distinct.
Related ULD types
Shipping in an LD-4? Track the air waybill and follow every milestone to arrival.
Track air cargoLD-4 FAQ
The LD-4 is a lower-deck container with the IATA code ALP, rated Type 8. The same unit also appears under ALD, AWD, AWZ, DLP, ALB, ALC, AWB, AWC, which are the prefixes different airlines assign to it.
Around 5.7 m³ of usable volume, up to 2,449 kg gross — the unit and its cargo together. The unit itself weighs 120 kg empty, so the payload is the difference between the two.
It is loaded on 767, 777, 787. A type is certified per aircraft and sometimes per door, so a unit that fits one freighter will not always fit another.
Track the shipment rather than the unit: the air waybill number is what the airline reports against. Enter it in the air tracking app, or make the same lookup one REST call with the API reference.