Aerospace industry

The aerospace industry is a significant global sector, and I need to gather relevant and verifiable external links for the article.

Here's my plan for external links based on the search results:

1. History and Origin: The involvement of the U.S. government in supporting the early aerospace industry is well-documented. A link from Britannica or FAS.org would be suitable.

   • Found: "The History of the Aerospace Industry - EH.net"²⁰ and "Aerospace industry - History, Wright Brothers, World War I | Britannica"¹⁹. Both discuss early government involvement and NACA (National Advisory Committee for Aeronautics). EH.net specifically mentions "No other industry has so persistently and intimately interacted with the bureaucratic apparatus of the nation state."¹⁸ This is a strong fit.
   • Choice: https://eh.net/encyclopedia/the-history-of-the-aerospace-industry/ (EH.net, historical, academic-leaning, no paywall)

2. Practical Applications (Economic Impact): The aerospace industry's contribution to GDP and employment is a key application. PwC and the Aerospace Industries Association (AIA) have recent reports.

   • Found: "Contribution of the Aerospace Industry to the US Economy in 2023" from PwC¹⁷ and "2024 Facts & Figures: American Aerospace and Defense Remains an Economic Powerhouse" from Aerospace Industries Association (AIA)¹⁶. Both are recent and provide economic impact figures. The AIA link is very direct.
   • Choice: https://www.aia-aerospace.org/resources/facts-figures/ (Aerospace Industries Association, industry body, current data)

3. Limitations and Criticisms (Supply Chain/Cyclicality): Supply chain issues are a recurring problem, and the industry is cyclical. McKinsey, Astute Group, and Forbes discuss these.

   • Found: "Addressing continued turbulence: The commercial-aerospace supply chain - McKinsey"¹⁵ discusses persistent supply chain constraints and their impact. "Supply Chain Woes Continue to Plague Aerospace Industry - Astute Group"¹⁴ also covers this. "Commercial Aerospace: Bracing for a New Cycle of Lower Profits | Bain & Company"¹³ and "The Aerospace Industry Is Preparing For An Upturn - Forbes"¹² address cyclicality and challenges.
   • Choice: https://www.mckinsey.com/industries/aerospace-and-defense/our-insights/addressing-continued-turbulence-the-commercial-aerospace-supply-chain (McKinsey, reputable consulting firm, detailed analysis of a current issue)

4. Practical Applications (Regulations/Sustainability): Environmental regulations and innovation for sustainability are relevant. EPA and EASA discuss regulations.

   • Found: "Environmental Regulations Aerospace: Policies & Compliance - Vaia"¹¹ and "Smart environmental standards | EASA - European Union"¹⁰. The EASA link provides information on international standards (ICAO) and EU implementation.
   • Choice: https://www.easa.europa.eu/en/environmental-protection/environmental-standards (EASA, official European aviation safety agency, relevant to regulations and sustainability).

All chosen external links are from trusted domains and appear to be live and readable. I have at least 3 different domains: eh.net, aia-aerospace.org, mckinsey.com, and easa.europa.eu.

Now, I will proceed with creating the LINK_POOL and then writing the article.

LINK_POOL (Hidden Table):

Ready to write the article.^123456789