They didn&#x27;t invent any safety features, but the basic research done by Colonel John Stapp in the field of human g-force tolerance was fundamental to the design of seat belts and restraint systems, and was later used in passenger car design.<p><a href="https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;John_Stapp" rel="nofollow">https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;John_Stapp</a>