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There's an A-12 Blackbird at the San Diego Air & Space Museum in Balboa Park. Not an expert, but my understanding is the A-12 was basically the beta version tha

There's an A-12 Blackbird at the San Diego Air & Space Museum in Balboa Park. Not an expert, but my understanding is the A-12 was basically the beta version that eventually lead to the SR-71. https://sandiegoairandspace.org/collection/item/lockheed-a-12-blackbird https://sandiegoairandspace.org/collection/item/lockheed-a-1...

dmix 3y ago
That looks a bit smaller than I expected, from my uninformed opinion. Maybe it's just the angle of the photos. How did it fly for 10hrs (based on the parent article) at high speeds without a ton of space for fuel?
- Merad 3y ago
  Lots of aerial refueling. 10 hours in the air, yes, but not on a single tank of fuel.
- dwighttk 3y ago
  "The SR-71 needed to be able to fix its position within 1,885 feet (575 m) and within 300 ft (91 m) of the center of its flight path while traveling at high speeds for up to ten hours in the air." They refueled in-flight, and the high speeds they are referring to probably weren't sustained for 10 hours... I think it is more like "while traveling at high speeds and for up to ten hours"...
- AceyMan 3y ago
  The SR-71 is smaller than you'd think ([edit] to my eyeballs, at least). As far as fuel goes (a) in a three-dimensional object, "volume adds up fast," and (b) aerial refueling. (p.s. My dad was a US Navy pilot in the early 60s when celestial navigation was still core curricula.)
legitster 3y ago
The A-12 was the original single seat version developed for the CIA. But eventually the Air-Force was given all responsibility over the planes and they re-designated the plane and added a second seat to fit their pilot philosophy. There were supposed to be more variants, even tactical bombers but military politics and budget constraints and yadda yadda yadda.
- mauvehaus 3y ago
  The Air Force museum in Dayton has a YF-12, which was the prototype of the interceptor variant. It's readily distinguishable from the A-12 and SR-71 because the chines don't extend to the front of the nose. This so that the nose cone could be made of material that is transparent to radar.

dmix 3y ago

That looks a bit smaller than I expected, from my uninformed opinion. Maybe it's just the angle of the photos. How did it fly for 10hrs (based on the parent article) at high speeds without a ton of space for fuel?

Merad 3y ago
Lots of aerial refueling. 10 hours in the air, yes, but not on a single tank of fuel.
dwighttk 3y ago
"The SR-71 needed to be able to fix its position within 1,885 feet (575 m) and within 300 ft (91 m) of the center of its flight path while traveling at high speeds for up to ten hours in the air." They refueled in-flight, and the high speeds they are referring to probably weren't sustained for 10 hours... I think it is more like "while traveling at high speeds and for up to ten hours"...
AceyMan 3y ago
The SR-71 is smaller than you'd think ([edit] to my eyeballs, at least). As far as fuel goes (a) in a three-dimensional object, "volume adds up fast," and (b) aerial refueling. (p.s. My dad was a US Navy pilot in the early 60s when celestial navigation was still core curricula.)

legitster 3y ago

The A-12 was the original single seat version developed for the CIA. But eventually the Air-Force was given all responsibility over the planes and they re-designated the plane and added a second seat to fit their pilot philosophy. There were supposed to be more variants, even tactical bombers but military politics and budget constraints and yadda yadda yadda.

mauvehaus 3y ago
The Air Force museum in Dayton has a YF-12, which was the prototype of the interceptor variant. It's readily distinguishable from the A-12 and SR-71 because the chines don't extend to the front of the nose. This so that the nose cone could be made of material that is transparent to radar.