51.   But the new planes do not necessarily mean more capacity.

52.   Buy a new plane for the Pentagon.

53.   Buying even one Airbus plane would require Air China to provide pilot training, mechanic training, and spare-parts purchases just for the new plane type.

54.   But until Friday, the Seattle aerospace giant had been overshadowed by its archrival Airbus Industrie, which announced far more orders for new planes than did Boeing.

55.   Buying even one Airbus would require Air China to provide pilot training, mechanic training, and spare-parts purchases just for the new plane type.

56.   Company officials have said they are eager to share the cost of developing new planes with partners, who would own a piece of the program.

57.   Conversion is also popular among cargo carriers, who buy passenger planes secondhand and have them converted at a fraction of the cost of buying a new plane.

58.   Commonality is an important consideration for airlines when it comes to buying new planes.

59.   Company officials said the new plane was having trouble remaining stable in some required turning maneuvers.

60.   DaimlerChrysler Aerospace wanted the new plane assembled in Hamburg.