There's an interesting story about trading Boeing aircraft design knowledge for Soviet titanium design knowledge during the cold war. https://www.smithsonianmag

There's an interesting story about trading Boeing aircraft design knowledge for Soviet titanium design knowledge during the cold war. https://www.smithsonianmag.com/air-space-magazine/the-titanium-gambit-3804526/ https://www.smithsonianmag.com/air-space-magazine/the-titani...