Sikorsky and Boeing have said that the first flight of the SB-1 compound helicopter will unlikely to happen this month and the schedule has bee delayed by two to three weeks.
The issues were discovered during ground tests.
Aviation News
Sikorsky and Boeing have said that the first flight of the SB-1 compound helicopter will unlikely to happen this month and the schedule has bee delayed by two to three weeks.
The issues were discovered during ground tests.