<br> Boeing built huge numbers of bombers during [[World War II]] including some 12,000 [[B-17]] Flying Fortress and 3,900 [[B-29]] Superfortress'. By the 1950s technology had advanced, and Boeing created the first sucessful jet, the 707. Since then Commerical Boeing aircraft have had a 7x7 designation. In the 1960's Boeing introduced the best selling aircraft the [[737]], a short or medium range two engined airliner. In January 1970 the [[747]] was also introduced as the largest commerical aircraft of the time, further accelerating the jet age. | <br> Boeing built huge numbers of bombers during [[World War II]] including some 12,000 [[B-17]] Flying Fortress and 3,900 [[B-29]] Superfortress'. By the 1950s technology had advanced, and Boeing created the first sucessful jet, the 707. Since then Commerical Boeing aircraft have had a 7x7 designation. In the 1960's Boeing introduced the best selling aircraft the [[737]], a short or medium range two engined airliner. In January 1970 the [[747]] was also introduced as the largest commerical aircraft of the time, further accelerating the jet age. |