• The SR-71 Blackbird's airframe was made of 93% titanium.
• The aircraft's titanium skin expanded and contracted with temperature changes.
• The CIA sourced titanium from the Soviet Union through shell companies.
• The SR-71's manufacturing process was highly complex and difficult to replicate.

The SR-71 Blackbird's titanium airframe may indicate the challenges of replicating complex manufacturing processes, which could suggest limitations in modern aerospace production. The use of exotic materials and covert supply chains may also imply the importance of innovative solutions in defense programs, which could influence future procurement decisions.