Great SR-71 Story - How slow could it fly?

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unokitty

Diamond Member
Jan 5, 2012
3,346
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800px-Early_project_logo_Habu_SR-71.jpg

I few decades ago, I worked in on a hill that overlooked Kadena AFB in Okinawa.

On several occasions, I got to look down on an SR-71 coming in for a landing. Can confirm that they do not make much noise when landing...

Noisiest aircraft that I ever heard was a B-52 taking off to go bomb Nam. They were so heavily loaded that once they got up in the air they had to do an aerial refuelling ...

Uno
 

K7SN

Senior member
Jun 21, 2015
353
0
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800px-Early_project_logo_Habu_SR-71.jpg

skip...

Noisiest aircraft that I ever heard was a B-52 taking off to go bomb Nam. They were so heavily loaded that once they got up in the air they had to do an aerial refuelling ...

Uno

Noisiest aircraft I ever saw was a F-4 phantom waiting on the tarmac for an ambulance to bring one of those little "somebody needs this now" medical coolers to be loaded and then the F-4 left - going straight vertical a 1/5 of the way down the runway and accelerating till able 4,000' above terrain, then pitching over and breaking the sound barrier rather quickly. Some hot shot Colonel off to save somebodies life. Darn impressive display of power.
 

Xstatic1

Diamond Member
Sep 20, 2006
8,982
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Pics I took at the USAF Museum last year (a couple of 'em are similar to IndyColtFan's pics)...

sr71a.jpg


sr71a-2.jpg


sr71a-3.jpg





b2spirit.jpg


b2spirit-2.jpg


b2spirit-3.jpg
 

skyking

Lifer
Nov 21, 2001
22,809
5,974
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The story about 80,000 feet was really 60,000 feet, or Flight Level 600 (FL600).
It represented the upward limits of controlled airspace, and the blackbird pilot was properly "checking in" before descending back down into the fray with the rest of the aircraft.
He happened to get a new controller who had no clue :)
 

NoTine42

Golden Member
Sep 30, 2013
1,387
78
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Nice pics, what's amazing was these planes were designed without any help from any computer, that's engineering my friend..

In an era when air speed records were broken frequently and regularly, didn't Kelly Johnson say this would be the world's fastest plane for the next 30 years....and he was right.
 

Aikouka

Lifer
Nov 27, 2001
30,383
912
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The B-2 is another favorite of mine. Unfortunately, I've never seen one in person, but I have seen an A-10, which is another interesting plane. Although, that one is far more exciting when someone tells you all the crazy stuff that has happened with it. :p

I saw what I thought was a '71 on the 72A between Madison and Huntsville back in 2007. Maybe it was the '12 instead.

Either way, it looked like a sewing needle with two engines bolted on.

Yeah, The U.S. Space and Rocket Center has an A-12 outside. Here's a photo of it.
 

John Connor

Lifer
Nov 30, 2012
22,757
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Saw and touched the SR-71 at Hill AFB.

Got two versions and an A-12 in the sim. Took me about 45 minutes to fly from my home town airport in CO KJFK. LOL
 
Oct 25, 2006
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Nice pics, what's amazing was these planes were designed without any help from any computer, that's engineering my friend..

Not as much engineering, as much as having 45,000 engineers crunch numbers by hand with pen/paper/and slide rule. Extremely tedious.
 
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cabri

Diamond Member
Nov 3, 2012
3,616
1
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Saw and touched the SR-71 at Hill AFB.

Got two versions and an A-12 in the sim. Took me about 45 minutes to fly from my home town airport in CO KJFK. LOL

I thought KJFK was the ICAO code for JFK in New York State

If you mean from Co to JFK, that makes partial sense.

Using the Sim, which airport did you launch from
KAPA (Centennial)
KDEN (Denver)
KFNL (Loveland/Ft Collins)
 
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TraumaRN

Diamond Member
Jun 5, 2005
6,893
63
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The B-2 is another favorite of mine. Unfortunately, I've never seen one in person, but I have seen an A-10, which is another interesting plane. Although, that one is far more exciting when someone tells you all the crazy stuff that has happened with it. :p

Not my youtube video but I was at this game when the B-2 flew overhead. Utterly amazing to watch, and because of the weird shape it honestly just doesn't look like it belongs in the air.

https://www.youtube.com/watch?v=fiiiLSjiMUo
 

cabri

Diamond Member
Nov 3, 2012
3,616
1
81
Had multiple B2s "float" overhead while at Nellis. No noise at all even though low enough to see the landing gear down.

took me a minute to realize what I was seeing the first time. Odd bird
 

jlee

Lifer
Sep 12, 2001
48,518
223
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Not as much engineering, as much as having 45,000 engineers crunch numbers by hand with pen/paper/and slide rule. Extremely tedious.

I think just about any engineer looking at the SR71 is not going to say "not as much engineering." :p
 

Paratus

Lifer
Jun 4, 2004
17,691
15,939
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Another good SR-71 story from the "Skunk Works" book by Ben Rich

In the fall of ’82, I flew from Mildenhall on a mission over Lebanon in response to the Marine barracks bombing. President Reagan ordered photo coverage of all the terrorist basis in the region. The French refused to allow us overfly, so our mission profile was to refuel off the south coast of England, a Mach 3 cruise leg down the coast of Portugal and Spain, left turn through the Straits of Gibraltar, refuel in the Western Mediterranean, right turn into Lebanon and fly right down main street Beirut, exit along the southern Mediterranean with another refueling over Malta, supersonic back out the straits, and return to England.

Because Syria had a Soviet SA-5 missile system just west of Damascus that we would be penetrating (we were unsure of Syria’s intentions in this conflict), we programmed to fly above 80,000 feet and at Mach 3 plus to be on the safe side, knowing that this advanced missile had the range and speed to nail us.

As we entered Lebanon’s airspace my Recon Systems Officer in the rear cockpit informed me that our defensive systems display showed we were being tracked by that SA-5. About 15 seconds later we got a warning of active guidance signals from the SA-5 site. We couldn’t tell whether there was an actual launch or the missile was still on the rails, but they were actively tracking us. We didn’t waste any time wondering, but climbed and pushed that throttle, and said a couple of “Hail Kellys.”

We completed our pass over Beirut and turned toward Malta, when I got a warning low-oil-pressure light on my right engine. Even though the engine was running fine I slowed down and lowered our altitude and made a direct line for England. We decided to cross France without clearance instead of going the roundabout way.

We made it almost across, when I looked out the left window and saw a French Mirage III sitting ten feet off my left wing. He came up on our frequency and asked us for our Diplomatic Clearance Number. I had no idea what he was talking about, so I told him to stand by. I ask my backseater, who said, “Don’t worry about it. I just gave it to him.” What he had given him was “the bird” with his middle finger: I lit the afterburners and left that Mirage standing still. Two minutes later, we were crossing the Channel.
 

dphantom

Diamond Member
Jan 14, 2005
4,763
327
126
The story about 80,000 feet was really 60,000 feet, or Flight Level 600 (FL600).
It represented the upward limits of controlled airspace, and the blackbird pilot was properly "checking in" before descending back down into the fray with the rest of the aircraft.
He happened to get a new controller who had no clue :)

excellent! Thanks for the update/correction.

:thumbsup:
 

effowe

Diamond Member
Nov 1, 2004
6,012
18
81
My favorite SR-71 story: The Speed Check.

There were a lot of things we couldn't do in an SR-71, but we were the fastest guys on the block and loved reminding our fellow aviators of this fact. People often asked us if, because of this fact, it was fun to fly the jet. Fun would not be the first word I would use to describe flying this plane. Intense, maybe. Even cerebral. But there was one day in our Sled experience when we would have to say that it was pure fun to be the fastest guys out there, at least for a moment.

It occurred when Walt and I were flying our final training sortie. We needed 100 hours in the jet to complete our training and attain Mission Ready status. Somewhere over Colorado we had passed the century mark. We had made the turn in Arizona and the jet was performing flawlessly. My gauges were wired in the front seat and we were starting to feel pretty good about ourselves, not only because we would soon be flying real missions but because we had gained a great deal of confidence in the plane in the past ten months. Ripping across the barren deserts 80,000 feet below us, I could already see the coast of California from the Arizona border. I was, finally, after many humbling months of simulators and study, ahead of the jet.

I was beginning to feel a bit sorry for Walter in the back seat. There he was, with no really good view of the incredible sights before us, tasked with monitoring four different radios. This was good practice for him for when we began flying real missions, when a priority transmission from headquarters could be vital. It had been difficult, too, for me to relinquish control of the radios, as during my entire flying career I had controlled my own transmissions. But it was part of the division of duties in this plane and I had adjusted to it. I still insisted on talking on the radio while we were on the ground, however. Walt was so good at many things, but he couldn't match my expertise at sounding smooth on the radios, a skill that had been honed sharply with years in fighter squadrons where the slightest radio miscue was grounds for beheading. He understood that and allowed me that luxury.

Just to get a sense of what Walt had to contend with, I pulled the radio toggle switches and monitored the frequencies along with him. The predominant radio chatter was from Los Angeles Center, far below us, controlling daily traffic in their sector. While they had us on their scope (albeit briefly), we were in uncontrolled airspace and normally would not talk to them unless we needed to descend into their airspace.

We listened as the shaky voice of a lone Cessna pilot asked Center for a readout of his ground speed. Center replied: "November Charlie 175, I'm showing you at ninety knots on the ground."

Now the thing to understand about Center controllers, was that whether they were talking to a rookie pilot in a Cessna, or to Air Force One, they always spoke in the exact same, calm, deep, professional, tone that made one feel important. I referred to it as the " Houston Center voice." I have always felt that after years of seeing documentaries on this country's space program and listening to the calm and distinct voice of the Houston controllers, that all other controllers since then wanted to sound like that, and that they basically did. And it didn't matter what sector of the country we would be flying in, it always seemed like the same guy was talking. Over the years that tone of voice had become somewhat of a comforting sound to pilots everywhere. Conversely, over the years, pilots always wanted to ensure that, when transmitting, they sounded like Chuck Yeager, or at least like John Wayne. Better to die than sound bad on the radios.

Just moments after the Cessna's inquiry, a Twin Beech piped up on frequency, in a rather superior tone, asking for his ground speed. "I have you at one hundred and twenty-five knots of ground speed." Boy, I thought, the Beechcraft really must think he is dazzling his Cessna brethren. Then out of the blue, a navy F-18 pilot out of NAS Lemoore came up on frequency. You knew right away it was a Navy jock because he sounded very cool on the radios. "Center, Dusty 52 ground speed check". Before Center could reply, I'm thinking to myself, hey, Dusty 52 has a ground speed indicator in that million-dollar cockpit, so why is he asking Center for a readout? Then I got it, ol' Dusty here is making sure that every bug smasher from Mount Whitney to the Mojave knows what true speed is. He's the fastest dude in the valley today, and he just wants everyone to know how much fun he is having in his new Hornet. And the reply, always with that same, calm, voice, with more distinct alliteration than emotion: "Dusty 52, Center, we have you at 620 on the ground."

And I thought to myself, is this a ripe situation, or what? As my hand instinctively reached for the mic button, I had to remind myself that Walt was in control of the radios. Still, I thought, it must be done - in mere seconds we'll be out of the sector and the opportunity will be lost. That Hornet must die, and die now. I thought about all of our Sim training and how important it was that we developed well as a crew and knew that to jump in on the radios now would destroy the integrity of all that we had worked toward becoming. I was torn.

Somewhere, 13 miles above Arizona, there was a pilot screaming inside his space helmet. Then, I heard it. The click of the mic button from the back seat. That was the very moment that I knew Walter and I had become a crew. Very professionally, and with no emotion, Walter spoke: "Los Angeles Center, Aspen 20, can you give us a ground speed check?" There was no hesitation, and the replay came as if was an everyday request. "Aspen 20, I show you at one thousand eight hundred and forty-two knots, across the ground."

I think it was the forty-two knots that I liked the best, so accurate and proud was Center to deliver that information without hesitation, and you just knew he was smiling. But the precise point at which I knew that Walt and I were going to be really good friends for a long time was when he keyed the mic once again to say, in his most fighter-pilot-like voice: "Ah, Center, much thanks, we're showing closer to nineteen hundred on the money."

For a moment Walter was a god. And we finally heard a little crack in the armor of the Houston Center voice, when L.A.came back with, "Roger that Aspen, Your equipment is probably more accurate than ours. You boys have a good one."

It all had lasted for just moments, but in that short, memorable sprint across the southwest, the Navy had been flamed, all mortal airplanes on freq were forced to bow before the King of Speed, and more importantly, Walter and I had crossed the threshold of being a crew. A fine day's work. We never heard another transmission on that frequency all the way to the coast.

For just one day, it truly was fun being the fastest guys out there.
 
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BUTCH1

Lifer
Jul 15, 2000
20,433
1,769
126
Noisiest aircraft I ever saw was a F-4 phantom waiting on the tarmac for an ambulance to bring one of those little "somebody needs this now" medical coolers to be loaded and then the F-4 left - going straight vertical a 1/5 of the way down the runway and accelerating till able 4,000' above terrain, then pitching over and breaking the sound barrier rather quickly. Some hot shot Colonel off to save somebodies life. Darn impressive display of power.

Yea, for a plane that went into production in '59 the F-4 was quite a beast. The Russians were busy designing the MiG-25 (which still holds the altitude record), in '76 we learned all about this planes details when a Russian pilot defected and landed the plane in Japan. The Japanese (despite intense protest from Russia) invited the US to check out the plane so they took it on a C-5 cargo plane to a base in central Japan and dismantled EVERY piece of it. Finally, 67 days later it was returned to the Soviet Union by a cargo vessel, IN PIECES.. :biggrin::biggrin::biggrin: The aircraft was reassembled and is now on display at the Sokol plant in Nizhny Novgorod.
 

Blitzvogel

Platinum Member
Oct 17, 2010
2,012
23
81
Not the chine, just a little bit further down the _wing's_ leading edge...

The slight drooping at the leading edge as it goes outwards(somewhat like the Concordes wing)? If you're telling me that is to trap shockwaves, I don't believe you. Probably more to do with maintaining smooth airflow, as most delta wing planes have the slight leading edge droop.
 
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Gibsons

Lifer
Aug 14, 2001
12,530
35
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Basically an SR-71 without a backseat :) A-12 was to be a fighter interceptor to replace F-104 but at Mach 3.5 it would take a couple states (or countries) to turn around if you had to go back for something missed. Anyway that's what I was told.

BTW: My 1963 A-12 story was a friend of mine who worked for Nevada Department of Wildlife (NDOW) was doing a deer count from a Cessna in a mountain range just north and west of the ranch. He's flying along and an A-12 at subsonic flew past him. He happened to be at a meeting (NDOW has an interest in wildlife on the patrolled side of the fence) a few months later. He related the incident and described the strange plane (This is still 1963 remember) to a Colonel who was representing the Groom facility and he said the Colonel's face got ashen and in a concerned voice whispered, "Please don't tell anyone about that!" :)

You see a lot of interesting things exploring on the BLM side of the fence, I once saw a B-1 (not a B-1B) playing tag with an Aardvark riding in a canyon east of the range that includes the ranch. This was 1975 and I didn't figure out what I had seen until a year or so later when "future design was announced. I was in this canyon and had rode up on a little knoll maybe 300 feet above the valley floor. I was looking around and heard the noise and actually was looking out and down as they flew by. One never knows what you'll see out there.

The YF 12 was the interceptor version. Idea was to arm it with nuclear AA missiles, it could reach out and touch sov bombers a very long way from target.