LD3 Contour — Lower Deck Contour Limits

The lower-deck section for single-width containers such as the AKE. 162.6 cm (64 in) tall with the outboard side cut away to follow the fuselage.

Industry label: LD3
IATA contour letter: Not establishedNo IATA letter could be matched to this label in published sources.
Deck: Lower Deck
Maximum height: 162.6 cm / 64 in
Base width: 153.4 cm / 60.4 in
Base length: 156.2 cm / 61.5 in
Where the taper starts: 140 cm / 55.1 inFull width is carried up to 140 cm, then the section narrows toward the top.

Permitted width at height

Read as: at the stated height above the pallet or container floor, this is the maximum overall width the build may occupy. A load that exceeds any single row is out of contour, even if it is under the maximum height.

LD3 section, 162.6 cm tall on a 153.4 × 156.2 cm base.
Height above floor	Maximum width	Taper
0 cm / 0 in	153.4 cm / 60.4 in	full base width
100 cm / 39.4 in	153.4 cm / 60.4 in	full base width
140 cm / 55.1 in	153.4 cm / 60.4 in	full base width
162.6 cm / 64 in	140 cm / 55.1 in	−13.4 cm (5.3 in) narrower

Verification status

Aircraft

Positions accepting this contour are recorded on: B747, B777, B767, B787, A330, A350, A321. A main-deck contour is never a lower-deck limit — the same PMC that takes 116 in or 118 in on a freighter main deck is limited to about 64 in in a wide-body passenger belly.

Aircraft	Type	Main deck	Lower deck
Boeing 747 (passenger)	Wide-body passenger	No cargo position	30 positions · 162.6 cm limit
Boeing 777 (passenger)	Wide-body passenger	No cargo position	14 positions · 162.6 cm limit
Boeing 767 (passenger)	Wide-body passenger	No cargo position	9 positions · 162.6 cm limit
Boeing 787	Wide-body passenger	No cargo position	16 positions · 162.6 cm limit
Airbus A330	Wide-body passenger	No cargo position	26 positions · 162.6 cm limit
Airbus A350	Wide-body passenger	No cargo position	26 positions · 162.6 cm limit
Airbus A321	Narrow-body	No cargo position	10 positions · 162.6 cm limit

ULDs built to LD3

Code	Also coded	Class	Max gross
AKE	LD3	Container	1,588 kg / 3,501 lb
AKN	LD3-Extended	Container	1,588 kg / 3,501 lb
PKC	—	Container	1,134 kg / 2,500 lb

Test a build against the LD3 contourSimulated buildup places cargo in the section and flags over contour, in 2D profile and 3D.