According the following article Boeing's KC
-46 aerial refueling tanker continues to be hampered by late supplier deliveries, according to a federal oversight report released Thursday.
“A key supplier is not delivering aerial refueling systems on time, which could affect the timely delivery of aircraft,” the Government Accountability Office report says.
See : http://www.theheraldbusinessjournal....rag-on-Boeing-KC-46-tanker-program
According Boeing the following suppliers are involved with the refulelling system :
- Cobham (Davenport, Iowa): Refueling systems, including wing aerial refueling pods and centerline drogue system
Laurel Technologies Inc. (Johnstown, Pa.): Aerial Refueling Operator Station (AROS)
- Moog Inc. : refueling boom actuators (Torrance, Calif.)
- Parker Aerospace (Arizona, California, Florida, Georgia, Michigan, New York, North Carolina, Ohio, Texas and Utah): Refueling components including the receptacle door actuator, aerial refueling interface control system, and wing refueling pod hydraulic power packs
- Woodward Inc. (Skokie, Ill.): Several elements of the aerial refueling boom, including the sensor system, control unit, and telescopic and flight control sticks.
See : http://boeing.mediaroom.com/2011-06-...oeing-Names-KC-46-Tanker-Suppliers
Operating a twin over the ocean, you're always one engine failure from a total emergency.