STLNewsshares
New Boeing 777X Completes Successful First Flight • ... 
New Boeing 777X Completes Successful First Flight – – Three hour, 51 minute flight marks new phase for rigorous test program – Largest and most fuel efficientNew Boeing 777X Completes Successful First Flight • ... New Boeing 777X Completes Successful First Flight – – Three hour, 51 minute flight marks new phase for rigorous test program – Largest and most fuel efficient