Quote:
Originally Posted by BRPORSCHE
I have always wondered why the SR-71 was retired and the U-2 wasn't. IIRC, wasn't a U-2 shot down? It seems to me that the U-2 is in many ways inferior.
|
Operating costs.
Each SR-71 was hand built, and was in fact a unique one off masterpiece. Each needed it's own unique spare parts and logistics tail.