Note that the A-10 was designed post Vietnam and saw its first active service in the 1991 Gulf War, not in a jungle.  It happened to do well.  I find the engineering management of the A-10 quite interesting. The plane has done well, it is loved, but it&#x27;s also had the most friendly fire kills of any aircraft of the modern era.  There is a engineering case study review of the creation of the program, the multiple attempts and successful killing of the project in the 80s here (note that was for construction, taking our current planes out of service is a work in progress since they will be flightworthy through most of the 2020s): <a href="http:&#x2F;&#x2F;www.dtic.mil&#x2F;dtic&#x2F;tr&#x2F;fulltext&#x2F;u2&#x2F;a530838.pdf" rel="nofollow">http:&#x2F;&#x2F;www.dtic.mil&#x2F;dtic&#x2F;tr&#x2F;fulltext&#x2F;u2&#x2F;a530838.pdf</a>