Size, energy efficiency, cargo and passenger load, comfort and cost. There are a lot of factors involved in making an airplane design appealing to airlines and, in turn, their customers.
원문출처 : https://www.cnn.com/travel/article/world-best-selling-airplanes/index.html
원문출처 : https://www.cnn.com/travel/article/world-best-selling-airplanes/index.html