The A-12 and the later SR-71 used the NAS-14v2 astro-inertial navigation system (ANS) from the 1960s, which was particularly interesting in the pre-GPS times. The set apparently looked like this...
a-12
astro-inertial navigation system
central intelligence agency
cold war
great britain
jet age
nas-14v2
northrop
nortronics
nortronics division (northrop)
space age
sr-71
strategic air command
strategic reconnaissance
united states air force
Hello,
Here are some renderings of a model I was commissioned to create of McDonnell Douglas's never built A-12A Avenger II. While certain details may be of questionable accuracy such as the position of the forward formation lights on the underside, I spent a lot of time studying what few...
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