Aviation manufacturing links airlines' future networks with the ability of manufacturers and suppliers to design, certify, build and support aircraft and engines. Orderbooks may indicate demand, but production capacity, engine availability, aftermarket support and airline fleet compatibility determine what can actually enter service. Richard Aboulafia compares the positions and constraints of major aircraft manufacturers and the role India might play in the aerospace supply chain. Jean-Pierre Clercin discusses regional aircraft demand, ATR's manufacturing priorities and the distinction between industrial possibilities and firm investment commitments. Vasuki Prasad explains how Embraer approaches aircraft sales and airline business cases. Thomas Jaeger and Addison Schonland consider grounded aircraft, engine support bottlenecks and future programme promises. Together these conversations explain why the manufacturing economy should be evaluated separately from an airline's fleet-selection decision.