Since no diplomatic progress was being made toward peace, Egypt 's Sadat was convinced that to gain legitimacy at home, he must initiate   a war with limited objectives.

Along the Suez Canal, 80,000 well-equipped members of the Egyptian army crossed the Suez  and attacked fewer than 500 Israeli defenders. And in the Golan Heights , approximately 180 Israeli tanks faced an onslaught of 1,400 Syrian tanks.

Initial Israeli military losses were significant. And assistance was requested from the USA .

At that time, our reconnaissance satellites didn't have the capability    to provide the intelligence needed to sufficiently assess the situation.   So, we were alerted to prepare to fly SR-71 missions over the area of conflict, then recover in England . It was a mission within the design capability of the aircraft, although such a long, logistically-difficult mission never previously accomplished.

Within the first few days of the conflict, the supporting Arab nations initiated an oil embargo, making oil a weapon of war and contributed  to a decision by the British government to deny us a recovery any place in England .

A Plan B was rapidly drawn up to fly the SR-71 out of the East Coast, then recover back in New York at Griffiss AFB. These newly planned 12,000 mile missions would require (5) five air to air refuelings from (16)sixteen KC-135 tankers based in  Spain . 

In the utmost secrecy, we mobilized and deployed. A few days later, our first photo/electronic reconnaissance mission was successfully completed.

I was a fairly young pilot in the squadron, with only 120 hours of SR-71 time under my belt.  I was assigned to fly a backup SR-71 and to stay at Griffiss in an alert posture, and be prepared to fly follow-on missions. Then I served as back-up alert on two more successful missions. 

My turn to be the primary aircraft came up next.  The excitement level was high. And I certainly wanted to be part of another success.

Takeoff was at 2AM on a brisk and clear autumn night with about fifteen inches of snow already on the ground. It was peacefully calm . . until I lit both of the 34,000 lb. thrust afterburners. 

The first 450 miles had to be flown subsonic at .9 Mach, since we had to clear the commercial aircraft flight tracks off the East Coast before I could safely re-fuel. Most pilots don't know the true meaning of dark until they've been in a situation like this. You might compare it to refueling in an inkwell. I then made made three radio silent electronic rendezvous with three tankers out over the North Atlantic before dawn . . taking on 10,000 gallons of fuel.

After completing a few post-refueling checks, I lit the afterburners and started my acceleration to a leisurely Mach 3 cruise across the Atlantic . The airplane performed flawlessly, thanks to the extra special effort by the maintenance guys.

About 2000 miles across the Atlantic , I watched with excitement as the sun came up right in my face, giving me a nice vantage point.

The next refueling was a couple hundred miles north of the Azores . I took on another 10,000 gallons from a couple more tankers. 

I started my second acceleration and headed for  Gibraltar . At 80,000 feet, cruising through the center of the narrow straits with clear weather and 100 miles of visibility on both sides.  Spectacular.

Then I proceeded down the Mediterranean toward Israel where the weather was becoming worse as per flight plan's forecast.

The third air refueling south of Crete , although in poor weather, went along as scheduled.  Now packing in a full load of 80,000 lbs of JP-7 fuel, I lit the afterburners and started the acceleration toward the target area.

At maximum fuel flow in full afterburner, a RED engine oil quantity low light illuminated steady on my emergency warning panel.

In almost unbelief . . I momentarily stared at it !

I instantly scanned oil pressure, rpm, exhaust gas temperature, nozzle position for other indications of trouble.  Although there were no confirming indications of problems, I couldn’t just ignore the situation and continue on into the target area with the possibility of an engine failure at supersonic speed out over the Sinai.

We had no viable emergency airfields that could handle the SR-71. And I certainly did not want to be a no-notice, no-flight plan, single engine emergency arrival at David Ben Gurion airport in Tel Aviv. Especially, since the Israeli government had not been told about our missions, and they were focused on major battles for their own survival.

I took the engines out of afterburner to access the situation, and    think about the best course of action.

Then I had a pleasant surprise.

After coming out of afterburner the critical red warning light went out.   I became fairly-well convinced that it was a false momentary indication.

But it had cost me roughly 400 gallons of critically needed fuel.  My tankers were now 80 miles behind me . . and they were moving further away each second.  And re-joining them to top off fuel, would present  a whole new set of problems [ I won't get into.]

I decided to re-light the burners and press on. I had a 5 second flash   of the same red light during acceleration.  Then it went out.  Stayed out.

My flight track went down the Suez past Cairo before making a left turn at Mach 3.15 to cross the battle lines in the Sinai.  With panoramic and specific point cameras providing imagery of hundreds of targets on both sides of the SR-71, I flew North across the Dead Sea and  Golan Heights . Approaching Lebanon , I made a sweeping right turn out over Syria and then back to the Sinai on a parallel flight path for maximum coverage. The airplane was running well. I pushed it up a bit to Mach 3.2 before exiting Egypt near Port Said .

Once out over the Mediterranean , I started a descent to 25,000 feet to hit my fourth set of refuelers.

But as fate would have it, I was not only beong low on fuel because    of my previous oil low warning problem, but now a thunderstorm had reached up and it was now enclosing the air re-fueling contact point.

Using our internal electronic azimuth and distance measuring equipment, my backseater got me to within less than a mile behind   my tanker. But now, visibility was so poor that I could not see it.

In lousy weather, very low on fuel, I continued twenty miles down the refueling track. By this time, there was just one-half mile and 1000 feet of separation from the tanker.

Small break between the clouds.  Hooked up. 

I had less than 15 minutes of fuel left, when we made re-fueling  contact with the tanker and started transferring. The nearest emergency runway was roughly 100 miles away on Crete . 

Needless to say, I was very thankful to my tanker buddies, backseater, and good equipment for that rendezvous.  What a relief ! It gave me an entirely new meaning to ' finding a gas station ' . . when I really needed one.

We completed a fifth 10,000 gallon air refueling near the Azores before proceeding on a leisurely Mach 3 flight across the mid-Atlantic to a landing at Seymour Johnson.

Within 20 minutes, our people had the photo and electronic intelligence equipment downloaded, then onboard a dedicated AF courier flight to a Photo Interpretation Center in D.C.

Including 6 hours 41 minutes of supersonic speed, the round-trip flight covered more than 12,000 miles in 10 hours 49 minutes. 

After landing, I remember wondering what Lindbergh would have thought about the amazing advancements in aviation technology.

These missions were not declassified until the early 1990's when the SR-71 program was closed at the end of the Cold War.  Most of the remaining birds are now in various museums.

The one I flew is the centerpiece at SAC's Air and Space museum near Omaha .

Col. Jim Wilson, USAF ( Ret.)

[abridged ]