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Toxic_Avenger
30th April 2016, 08:12 PM
I've been reading this e-book, 'Sled Driver- Flying the world's fastest jet' by Brian Shul. Great read about the pilots who flew the SR-71 Blackbird.

https://www.dropbox.com/s/cjmpkhhl0626qze/Sled%20Driver.pdf'dl=0

Thought I'd share a humerous excerpt:

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.

Ferret
30th April 2016, 10:10 PM
I've heard that story before.

There is also another one where a navy pilot asked for his speed to be confirmed (forget what plane exactly). He thought there may have been an error because his instruments were showing he was travelling at near maximum speed but his radar was showing an object pulling away from him at twice the rated maximum speed of his jet.

If the story is true this would have put the SR71 speed at higher than it's publicly disclosed maximum speed.

Mick_Marsh
30th April 2016, 11:17 PM
I've heard many stories of he SR-71. That is probably the most sublime on how good the plane is.

JDNSW
1st May 2016, 06:08 AM
.....
If the story is true this would have put the SR71 speed at higher than it's publicly disclosed maximum speed.

That is almost certainly the case, but also don't forget the figures are groundspeed, and there are significant winds at that altitude.

Somewhere I have a book on the Skunk Works, written by a former head of it.

John

Ausfree
1st May 2016, 09:11 AM
An interesting plane, I have read many stories on them, shame they are mothballed but that's progress I guess.

Pickles2
1st May 2016, 11:04 AM
Awesome aircraft, I've actually touched one, can't remember where, could've been at Duxford UK,...in a museum of course.
Pickles.

cripesamighty
1st May 2016, 12:30 PM
"Somewhere I have a book on the Skunk Works, written by a former head of it."

That would be Skunk Works, written by Ben Rich. I have that and Sled Driver at home. Good books, the both of them.

JDNSW
1st May 2016, 02:05 PM
An interesting plane, I have read many stories on them, shame they are mothballed but that's progress I guess.

As you say, an interesting plane. But I don't know that 'mothballed' would be the right word. While it is barely feasible that the Concorde could fly again, the SR-71 had a whole ecosystem to allow them to fly from special fuel onwards, that was deliberately dismantled (including, probably, key documentation) by the USAF to make sure that the CIA could never again have a private airforce.

John

cripesamighty
1st May 2016, 02:59 PM
They have their drones for that now.....

Pedro_The_Swift
2nd April 2017, 09:28 PM
yep,, really really really slow drones,,

sounds like a good trade hey!

Barefoot Dave
3rd April 2017, 08:12 PM
I've heard that story before.

There is also another one where a navy pilot asked for his speed to be confirmed (forget what plane exactly). He thought there may have been an error because his instruments were showing he was travelling at near maximum speed but his radar was showing an object pulling away from him at twice the rated maximum speed of his jet.

If the story is true this would have put the SR71 speed at higher than it's publicly disclosed maximum speed.

Ferret, If you follow Pedros link in the other thread, Jim states that the SR71 was capable of quite a bit more than the published M3.35.

cripesamighty
4th April 2017, 02:36 AM
One of the biggest limiting factors for top speed on the SR-71 was the Compressor Inlet Temperature had to remain below 427 degrees C and airspeed stayed below 420 knots indicated. If outside air temps were low it could go faster than the recommended top speed for short periods of time but was not advised. Unless of course you had a SAM up your butt and you pushed the jet harder than allowed to get yourself out of a jam - which happened a few times apparently!

There were several studies done to increase the sustained top speed to past Mach 3.5 but they were considered not necessary as the gains were too small for the investment involved.

Captain_Rightfoot
14th June 2017, 05:42 AM
You might enjoy listening to him...

RFT 079: SR-71 Pilot Brian Shul | Ready For Takeoff - Turn Your Aviation Passion Into A Career on acast (https://www.acast.com/readyfortakeoffturnyouraviationpassionintoacareer/rft-079-sr-71-pilot-brian-shul)

p38arover
6th August 2017, 11:58 AM
A pic I took a few years back.

https://www.aulro.com/afvb/images/imported/2017/08/133.jpg (https://flic.kr/p/We9jiR)SR-71 Seattle (https://flic.kr/p/We9jiR) by Ron Beckett (https://www.flickr.com/photos/150600810@N05/), on Flickr

Tins
6th August 2017, 04:33 PM
A pic I took a few years back. Regrettably, the uploaded image quality is not as good as on my PC. I might try Flickr.

127413

It came up well enough for me, Ron. It is just sad to see such a magnificent thoroughbred in a cage.

Tins
12th October 2019, 07:33 PM
https://youtu.be/xTJYNq4GQAE

Bigbjorn
12th October 2019, 08:54 PM
How did the SR71 compare to the XB70 Valkyrie in ceiling and speed? I have a photo somewhere of the lone surviving Valkyrie in the restoration shop at Wright-Patterson. Most impressive piece of metal.

Homestar
13th October 2019, 08:44 AM
How did the SR71 compare to the XB70 Valkyrie in ceiling and speed? I have a photo somewhere of the lone surviving Valkyrie in the restoration shop at Wright-Patterson. Most impressive piece of metal.

Valkyrie was very impressive, the Blackbird does outperform it though. But given the Valkyrie was designed 10 years earlier, it’s at least as impressive IMO.

XB-70 Specs
Performance


Maximum speed: 1,787 kn (2,056 mph, 3,310 km/h)
Maximum speed: Mach 3.1
Cruise speed: 1,738 kn (2,000 mph, 3,219 km/h)
Combat range: 3,725 nmi (4,287 mi, 6,899 km)
Service ceiling: 77,350 ft (23,580 m)
Lift-to-drag: about 6 at Mach 2
Wing loading: 84.93 lb/sq ft (414.7 kg/m2)
Thrust/weight (https://en.wikipedia.org/wiki/Thrust-to-weight_ratio): 0.314


SR-71 Specs
Performance


Maximum speed: 1,910 kn (2,200 mph, 3,540 km/h) at 80,000 ft (24,000 m)
Maximum speed: Mach 3.32[N 5] (https://en.wikipedia.org/wiki/Lockheed_SR-71_Blackbird#cite_note-158)
Ferry range: 2,824 nmi (3,250 mi, 5,230 km)
Service ceiling: 85,000 ft (26,000 m)
Rate of climb: 11,820 ft/min (60.0 m/s)
Wing loading: 84 lb/sq ft (410 kg/m2)
Thrust/weight (https://en.wikipedia.org/wiki/Thrust-to-weight_ratio): 0.44

Tins
13th October 2019, 02:44 PM
Valkyrie was very impressive, the Blackbird does outperform it though. But given the Valkyrie was designed 10 years earlier, it’s at least as impressive IMO.







It's a pity it never really became an operational aircraft, as further development would have seen improvements. It's worth remembering it was intended to be a nuclear bomber, while the Blackbird was always going to be an unarmed spy plane.

Homestar
13th October 2019, 02:59 PM
Yeah, what could have been...

Tins
13th October 2019, 03:56 PM
Yeah, what could have been...

I still mourn Concorde and Vulcan, let alone Blackbird and Valkyrie. Still, at least I got to see Concorde flying once. June, 1972. Strewth, that's less than a month before I joined the Army! Ye Gods, time flies....

I know I'm probably romanticising this a little, but I have a memory of an overcast Melbourne day, with one hole in the clouds with a stream of sunlight shining through, and that is how Concorde chose to appear, in that beam of sunshine on a grey day. I wish I'd had an iPhone back then.... you know, the best camera there is is the one you have with you. I didn't even have a Kodak Instamatic in those days.

There is one great news shot of her in Sydney though.

https://2.bp.blogspot.com/-v37gvt1EZUI/W_CObZnB1-I/AAAAAAAEIuA/mJW7o6e-XOwZSzMLA9Ox7HU1DTZw0HyeACKgBGAs/s640/Concorde%2Bin%2BSydney%2Bjune%2B21%2B1972%2Bdaily% 2Btelegraph%2B3.jpg

Tins
8th February 2020, 01:07 PM
https://youtu.be/8AyHH9G9et0

Hugh Jars
8th February 2020, 02:35 PM
I had the privilege of doing a tour of the Steven F Udvar-Hazy museum a few years ago, with Col. Buz Carpenter as the guide. What a humble bloke.
As well as having flown the SR-71, He also has a fair bit of time on Phantoms.
I spent a bit of time with him after the tour finished, and he said to me "this thing only recently became de-classified recently, so you can ask me anything you like".
So we chatted about some of his sorties over the years.
What a great experience!

Here's just one video of him:

YouTube (https://youtu.be/F4KD5u-xkik)

JDNSW
8th February 2020, 03:06 PM
One of the books in my collection is "Skunk Works" by Rich and Janos. The inside story of the organisation that built the SR-71.

350RRC
11th February 2020, 08:37 AM
One of the books in my collection is "Skunk Works" by Rich and Janos. The inside story of the organisation that built the SR-71.

That's a great book.

My favourite SR 71 story was when the crew had to divert across France after the oil lights came on and the Mirage came up alongside.

DL

Pickles2
11th February 2020, 10:28 AM
https://youtu.be/xTJYNq4GQAE
LOVED this, Pickles.