Abstract: An extended unit load device for loading cargo into the lower decks of aircraft which comprises a standard pallet having a peripheral seat track and an inclined side support adapted to be pivotably and removably inserted in the track. The inclined side support may be mounted upon an attachment leg which comprises an engagement foot which engages the seat track and pivots in such a fashion as to lift the inclined side support to the inclined position. The inclined side support preferably comprises a sandwich of corrugated metal filled with polyurethane foam therebetween. Reinforcing rods may be inserted at periodic intervals along the length thereof. Cables affixed at one end thereof to each side of the inclined side support and at the other end thereof to the seat track serve to retain the inclined side support in the inclined position.