Boeing has delivered two 777 freighters to Southern Air Holdings, which will operate the aircraft on behalf of Thai Airways.

The twin-engine freighters have a revenue payload capability of 102t at a maximum take-off weight of 766,800lb.

The aircraft can fly 4,900nm with a full payload and general cargo market densities, making it the world’s longest-range twin-engine freighter, Boeing claims.

Southern Air CEO Daniel J McHugh said that with this addition, Southern Air would be able to provide a mix of next and current-generation freighter airplanes for their customers.

Southern Air, together with its new partner Thai Cargo, is the first aircraft, crew, maintenance and insurance (ACIM) operator use the 777, which will feature alongside its current fleet of 16 747 freighters.