“Try that in any aircraft other than the SR-71. Besides this is actually a true story.” David Peters, SR-71 pilot. The SR-71 Blackbird provided ample amounts of tall story merely by being there, and few anecdotes about the plane reflect its operational reality so well as the mission which appeared to be operating backwards through the timeline. On a Saturday morning two of the crewmen had taken off Kadena Air Base and, with a savage airspeed and a time zone calculation, had been strolling into the officers club at Beale Air Force Base in California during Friday happy hour when it was about 17.5 hours “before” they caught their flight.
Flying with Reconnaissance Systems Officer Ed Bethart, Peters packaged the episode as a reminder of the well-known coast-to-coast boast. It was not that the Blackbird could fly across a map in a short time, it was that its planning, tanking choreography, as well as its ability to maintain a high-Mach cruise, was able to squash the Pacific into the space that seemed to be a local sortie. According to Peters, part of the trip was a visit to a hook-up that was just offshore the Korean DMZ, a refueling in the Sea of Japan and another hook-up, followed by a low approach landing and a landing on Beale which was then followed by the de-suiting and debriefing of the crew and a final ritual of crating sensitive material before getting off base.
that illusion of “time travelling” was based rather on engineering than on theatrics. The operating envelope of the Blackbird, which values Mach 3.2 at 85,000 ft, placed the airplane in a state where distance and timing were an issue of fuel-and-heat management, rather than a navigation one. Crews at these altitudes wore pressure suits as a reminder that the performance of the aircraft was more of astronautics than aviation. Another reality that was frequently overlooked by the mission profile was that the speed of the SR-71 could not be accomplished without tanker support, timing and a ground crew pipeline that could turn an exceptionally demanding airframe.
The SR-71 was constructed under the skin of material and systems capable of enduring long-term aerodynamic heating. Most of its structure was constructed of titanium, and the airplane notorious leaks on the ground were a result of its being designed to be thermally expanded at high speed, and not to look presentable on the hangar-floor. It was not so much thrust as the propulsion system behaved, the way the inlets and engine worked as a single “powerplant” at cruise; at very high Mach, much of effective thrust was due not to the turbojet itself, but to inlet compression.
By far before Peters had to bend the calendar in order to return to Okinawa, the show had already shown that it was able to “beat the sun” in the other direction. In this excerpt of a memoir discovered by Buddy Brown a transit between Kadena and SR-71 is mentioned as arriving two hours earlier than it had departed from Beale yet another optical illusion of time caused by a fast eastbound crossing between time zones. What made these tales memorable was that they have transformed an ability of the classified era into an unified standard comprehensible to everyone: the wall clock.
The same was done in a more official manner by record flights. The New York-to-London flight of the Blackbird with a time of 1:54:56.4 has been adopted as a shortcut to what sustained the Mach cruise in practice with a refueling slowdown. However, the actual engineering miracle was never the stopwatch itself it was repeating such a performance as a field trip reconnaissance platform with two crewmembers, multifaceted sensors, and a maintenance fact that frequently reduced sorties to a planned rhythm.
The SR-71 continues to dominate discussions on speed decades after its initial flight not because it was speedy, but because it rendered geography a negotiable commodity, at least to the extent that “Friday” became a destination and not a day.
