working cargo door! (AG/7)

Combi aircraft in commercial aviation are aircraft that can be used to carry either passengers as an airliner, or cargo as a freighter, and may have a partition in the aircraft cabin to allow both uses at the same time in a mixed passenger/freight combination. The name combi comes from the word combination. The concept originated in railroading with the combine car, a passenger car that contains a separate compartment for mail or baggage.

Combi aircraft typically feature an oversized cargo door, as well as tracks on the cabin floor to allow the seats to be added or removed quickly.

Typically, configured for both passenger and cargo duty, the passenger compartment is pressurized to a higher pressure, to prevent potential fumes from cargo entering the passenger area.

Airlines :

Northwest Airlines:

In 1963, Northwest Airlines operated a domestic and international routing with a Douglas DC-7C four engine propeller aircraft between New York Idlewild Airport (which would subsequently be renamed JFK Airport) and Tokyo that was configured to transport a mixed passenger/cargo load.

The round trip routing for this flight which was operated once a week was New York-Chicago-Seattle-Anchorage-Tokyo.

The DC-7C was configured with all economy seating in the passenger cabin.[1]

By 1966, Northwest was operating jet combi service with Boeing 707-320C aircraft between the U.S. and Asia.[2]

LAN-Chile:

LAN-Chile (now LATAM Chile) was operating Boeing 727-100 combi service between the U.S. and Latin America three times a week in 1970 with service from New York City John F. Kennedy Airport (JFK) and Miami (MIA).[5] According to its October 25, 1970 system timetable, 727 combi routings operated by LAN-Chile included New York JFK - Miami - Cali, Colombia - Guayaquil, Ecuador - Lima, Peru - Santiago, Chile - Buenos Aires, Argentina - Montevideo, Uruguay as well as New York JFK - Miami - Panama City, Panama - Cali, Colombia - Lima, Peru - Santiago, Chile - Buenos Aires, Argentina - Montevideo, Uruguay and New York JFK - Miami - Panama City, Panama - Guayaquil, Ecuador - Lima, Peru - Santiago, Chile - Buenos Aires, Argentina.