Amazon has the ones I was referring to. https://www.amazon.com/Airplane-Design-Part-Preliminary-Airplanes/dp/188488542X https://www.amazon.com/Airplane-Design-

Amazon has the ones I was referring to. https://www.amazon.com/Airplane-Design-Part-Preliminary-Airplanes/dp/188488542X https://www.amazon.com/Airplane-Design-Part-Preliminary-Airp...