Send the following on WhatsApp
Continue to ChatNew and Derivative airplanes: Some good, some not; Part 1 https://leehamnews.com/2014/10/06/derivative-airplanes-some-good-some-not-part-1/
New and Derivative airplanes: Some good, some not; Part 1 https://leehamnews.com/2014/10/06/derivative-airplanes-some-good-some-not-part-1/