This Plane "doesn't exist" - SR-75 Penetrator 

Oh I accidently set this live early and now everyones seen it lol! Ok haha come play with me - playwt.link/foundandexplained

If the SR-71 was around in the 1960's, the mind boggles on what could be around now.

Never ceases to amaze me the lengths man will go to fully embrace the phrase "Gotta go fast".

1992, Okinawa, Japan: While playing volleyball with my fellow Marines, I noticed a contrail at high altitude. It was the classic doughnuts on a rope shape. I couldn't see the aircraft, but I could see it forming and moving. It crossed the entire view of the sky in about 20 seconds. No sound, no sonic boom after it passed from sight. Very impressive to witness.

Airline pilot here, earlier this year I watched donuts-on-a-rope contrails being made up close by the most unexpected source. At cruising altitude just before top of descent into LAX we were passed by a 737 a thousand feet above. Both the 737’s engines were leaving contrails that were sort of rolling back on themselves, forming into rings at regular intervals. I suspect it had something to do with the mixing of hot turbine exhaust and cool bypass air forming ring vortices and the conditions were just right whether it was speed, thrust, temperature, moisture, or some other factor(s) causing it. In one way it’s disappointing they weren’t being produced by some black triangle but in another way it’s fascinating that they were formed by such a benign and common type.

I grew up in Barrow Alaska on the arctic seaboard and in 91' and 92' while out skywatching we saw a few times, these pulse craft flying incredibly high covering huge distances in mere minutes. One time we watched one making a big arc in the sky with another craft cutting the arc in an apparent attempt to cut it off . We didnt see what happened as they flew out of our sight headed north east.

I know a lot of you wont believe me, but back in around 2012-2013, new years eve, some missile or plane flew over Ontario, Canada. It was so fast and the “shockwave” was so strong that it shook the house and made a sound as if a huge piece of ice fell from the roof. I went to school the next day and everyone at school heard it, even though we live far apart from each other. Literally everyone. It was the buzz in high school. Ive been to several air shows so i am well aware how jets sound like. Funny enough, so many people heard it in Ontario that the same morning there was a segment on CP24 stating that this was all just something related to the weather and how the cold air interacts with the atmosphere (something like that idk) blah blah. This “boom” occurred at around 9-10pm and very cloudy conditions. As i started looking into conspiracies and especially those related to flight, the second i heard about pulse based jet engines, i knew some top secret flew over the province. It would have been perfect conditions for it, low clouds, cant see a thing, slightly foggy weather, no sun, thick clouds, etc

Back in late 80's one doughnut on a rope contrail, with associated seismic track, drew a straight line to Johnston atoll while another one to Eniwetok. I heard others tracked similarly. I even had the displeasure to hear the "sky ripper" early in the morning in the Navada desert. I have a friend from childhood who had the life path I dreamed of being an Air Force aerospace scientist from 79 till 2010. We met at a school reunion. I asked him about what he could tell me and he replied it's beyond your imagination. I reminded him of just how advanced both our imaginations were back when we were in school, and he said that it was still beyond that. I had an uncle who was an Air Force LT. General that served in the technical field for 40 years. He pretty much said the same. He also knew about my technical knowledge and imagination. The US has been working on some seriously advanced stuff. I can see why the SR-75 is no longer with us. It's out dated and a waste of money.

For very remote airbase, RAF Macrihanish has surprisingly extremely sophisticated ground electronic equipment. Another rub chin been RAF Benbecula, also remote Scotland. Might be backup.

Scramjets were designed in the 1930s. Material science took decades to create materials that could withstand the heat created by travel at the speeds the engines were capable of. The program trying to design a fusalage for the engines was public in the 80s.

Flying a pulse-jet powered aircraft over populated areas in England, especially only forty years after WW2, is going to raise some eyebrows.

9:14 250 miles at Mach 15.. so like 1.3 minutes of flight time 😂😂

Looks like if a sr-71 and xb-70 were combined

In the spring/summer of 1997 I observed something appearing to be the mother craft for this flying from west to east over Grass Valley and Nevada City in California. What attracted my attention was the very "solid" looking contrails that did not dissipate as quickly as normal contrails. The plan form was similar to the SR-71 but was much larger. The forward fuselage was longer in relation to the delta wing area than that of the SR-71. There were no inlet spikes or engine nacelles in the leading edge of the wing. Having maintained the navigation systems of the SR-71 for nearly 7 years during my USAF career, I was certain this was not one of them. The aircraft was flying low and slow and over a low population area of northern California. If that was this mother ship, I suspect it must have had some form of IFE (in flight emergency) that necessitated the slow flight envelope. Around the same time frame, I would see three KC-10 tanker aircraft flying in formation over my residence at Penn Valley, CA on Thursday afternoons. About a half our later I would hear a loud growling sound going high overhead. Looking up, I could see nothing, No contrails no aircraft. The sound travelled from the south horizon to the north horizon in approximately 30-45 seconds. Yes, the government and contractors can keep aircraft projects secret for years before the public ever hears about them. The F-117 was a prime example.

That last little bit about the oil platform worker and “seasoned aircraft ‘observator’ [sic]” (it’s “observer”) is a reference to Chris Gibson, who witnessed a triangular craft being escorted by two F111s in the North Sea in the 80s or 90s (IIRC). Gibson was an award winning aircraft recognition expert who couldn’t identify what he saw from the oil platform he was working on.

I have been hearing about this plane for about 20 years. Im starting to think bigfoot flies it

I have the Testors model you built some of your CGI around. Built it back in the 90s. It came with a "Rusian satellite image" of Area-51 as part of the background/instructions before such things were commonly available. It'd be great if this thing were real; but, having worked with or for the DoD for decades, and watching space things happen as an enthusiast, I'm not convinced this got past paper studies and design ideas. I'd be more than excited to find out I'm wrong though.

i remember building the Testors model kit of this a long time ago, and always wanted to get the plane which piggybacked on it but never got it,and probably is the reason why i kept building similar looking planes in Kerbal Space Program ...kinda exciting to see a video on the plane after a long time

One fact that you missed concerning the Southern California hypersonic sonic booms, is that the USGS seismograph system that detected these, was replaced by the Department of Defense, according to many sources. This new system, somehow, no longer detects, or possibly filters out sonic booms from aircraft.

The contrail shown at 20:52 is almost exactly like one I saw in north Florida about 2010. I wondered what kind of meteorological conditions would make such a track but did not think about any kind of pulsejet.

Donuts on a rope is common on many commercial jet engines, especially when the contrails age for a few minutes.

Alex Hollings of Sandboxx News has a very good investigation into "Aurora". His conclusion - yes, it was probably a real vehicle (or vehicles) being tested during the 80s and 90s, but it likely didn't lead into a production capability.

No surprise. People thought the F16XL was never actually built and now there's 2 of em at edward's afb. I have also seen some crazy high altitude contrails that were definitely far higher than any commercial airliner or anything like them that looked similar to your video My brother was in desert storm. he tells me stories about the sr71 and such all the time. I once asked him if he ever saw anything "similar" to the sr71 but looked different and he always says "there was this one jet that they had all military personal on base go to their rooms except for the people with top secret clearance. It sounded like the sr71 on landing, but we all knew about the sr71, why hide us?"

I know a guy out in Arizona near Bullhead City. We did some ATV tours with him and he had a desert homestead with a bunch of very nice things such as Xboxes, PlayStations, a bathroom being Nicer than the one at my house, and much more. He is also completely off grid, in his early thirties and has lots of friends who work in the government on things like this. As we were going around the trails in the black mountains he would go on to tell me that he had this one friend who told him, as well as he somewhat witnessed himself, an aircraft that went across 6 states in five seconds. He told me all about it and how he has seen these secretive aircraft with insane speeds. And this was all before the hype of the dark star and all of that. I truly do believe without being some conspiracist that the U.S. does in fact have these hypersonic aircraft.

I love how the plane turns its rocket engines on and off. It's like farting countless times

When I was a kid in the early 2000s we would sometimes hear this deep pulsating rumbling at night here in the countryside of western Germany. I looked outside every time I heard it, but never saw any strobes. I was always a plane nut, even back then. And we'd get traffic from/to Frankfurt, Ramstein and Spangdahlem, so I knew my engine sounds. This was nothing like anything I've ever heard before, or ever since. Entirely unrelated, but another thing that happened around that time was every few weeks some clocks would suddenly display wrong times or blink 00:00, exactly like after being disconnected from power. Other appliances prone to load variations / spikes would be turned on in the morning as well. One day I was awake at night and just looked up at the stars from my roof window. Suddenly there was a flash, although there was no thunderstorm. I then heard my parents wireless phone downstairs beep (like when you put it back in the base unit and it started loading battery) When I looked back at the clock it now blinked 00:00. A few weeks after that my grandpa told me he had been awake at night and seen a flash, exactly at a day where the clocks had been reset in the morning as well. I still would love to know what kind of tests those were. I'd speculate about EMPs or something, but since I know what high-altitude EMPs can do to power grids I'm reluctant about that...

Around 1997-1998 i was working at a small remote airport in the southwest desert. I felt and heard a strange low rumble. I went outside and saw a "doughnut on a rope" contrail stretching across the sky.

The "SR-75 Penetrator" and "XR-7 Thunder Dart" were manufactured by the Testor's Model Company, and while very sexy looking had no real aircraft as their basis. Testors also did a number of other conjectural stealth aircraft around this time.

I live in North Las Vegas and my apartment complex is literally across the street from Nellis Air Force Base. I have seen weird craft land (of course I'm one of those without the fancy 2000mega pixel camera phones) and have heard odd sounds emit from the sky in early mornings (I'm typically a night owl so bedtime is 7am or so) I can honestly attest, hand to god, that there are experimental craft (and possibly other things) coming in and out of that base. They do cellular blackouts on a regular basis (reception going sucky 1 bar for like 2-4 hrs) that they DON'T announce. And even have what they DO announce is known here in the local news called Red Flag Operations in May, June, and July. Which severely kills my home internet wifi and cell phone service. This is discussed on local news when they are planning to do one. Never the same time (just within those months) each year and always on the news like 2 days before they do them. And they run for like a week straight. It is so common an occurrence to lose wifi and see lights and odd sounds early mornings that it is normal here for us. Almost surprised when we do have good service and don't hear strange sounds. I say this now, people living around Nellis are so unfazed by this stuff going on an alien craft could land in the parking lot of the 7-11 across from the main entry of Nellis AFB and people would be like "wazzup" and just carry on their day. Google map Nellis you will find my apartment complex and the 7-11 if you think I am lying. We are not surprised here by much of anything. We are like "meh".

Funny enough, in the 80s/90s, seismic activity was found and recorded in high altitude. Similar altitudes the Blackbird operated in. They recorded the strange sonic booms, and when they marked them on a map, all the activity was coming to and from Bakersfield, CA, which if people didn’t know, was where Lockheeds old facility was. They also found the same seismic activity that travelled in the direction of Nellis AFB, as well as to Groom Lake “Area51”. Seems like this could’ve been the SR75 prototype in early testing.

If I designed a dual aircraft, I would have the smaller craft merged into the front of the larger craft so that it only has one cockpit, in the smaller craft. Instead of ejector seats which would be fatal at hypersonic speed, the smaller craft would also serve as the escape craft. If hit by a missile, detach. The escape craft wings could be the retractable canards for escape only types or blend with the larger craft's wings at the front portion of a symbiotic delta wing for larger dual purpose types. The host craft would have fuel, jets with retractable inlet cones and dual-mode scramjets (ramjet scramjet). The smaller craft could have rocket engines only, to either enter orbit, fly a mission, or land safely upon separation with range enough to land in friendly territory. I'd also ionize the exhaust so that the fuselage becomes charged to repel air creating a nanometer thick vacuum layer around the aircraft to reduce friction. Now for the derogatory comments in replies;

I guess that we might have to wait for this one to be declassified too

Still have my "Testors" XR-7 Thunderdart from the early 90's. What a great nostalgic video.

Man, you've been covering all of my favourite secret black projects so far! Amazing job! Thank you! I would like to give you a suggestion: the animations realism would be so much better if you darkened the skies where these high altitude planes fly. I mean, the SR-72 fly so high that the sky is pitch black! Thank you, again!

Looks like a modern SR-71

If Groom Lake had to have the crazy long runway, how could it be landing and taking off at Midway, Wake, and Scotland that had standard runways?

DARPA and Skunk WOrks are like Hold my Beer!

I seen those clouds over Danbury, Ct. and Carmel, NY about 3 years ago !

It 's not like I care that much for airplanes, I have my personal favorite of all time the Saab J35 Draken. But I still find your videos interesting, and watching your other videos, reminds me what we learnt in computer science. All the products, must be able to perish and not be the perfect, in order to sell new models. From my understanding if all these were project of 90s, we probably can 't even imagine what projects are in process now. Hope I wrote everything right, I am Greek so not the best english speaker.

Amazing to see the xB-70 Valkeriy hints and blackbird hints and tech

Point of order, the F-82 was retired in 1953 while the A-! was running combat missions until 1973 with the US. So piston engined aircraft were blowing stuff up with the US until 1973

It doesn't take a genius to nail the F-117. Tom Clancy got not just its design, but also its role pretty much on point when he wrote Red Storm Rising. Why? Because the existance of the plane was known about, and he understood enough about warfare to know that the plane, from what little he did know, could really only fill one role. That said, the F-19, as it is called in the story, was a multirole fighter, not a pure bomber like it is IRL (though iirc the USAF did experiment with turning it into a fighter, but any such modification never saw combat use)

Two questions: 1. How useful would this be if the parasite only had a 250NM range at Mach 15, as stated (@9:00). I think it must have been much higher. 2. How would the parasite have returned to base? Would it fly back on its own or somehow mate back up with the mother ship (I doubt this).

From 1984 to 1992, I grew up around Edwards Air Force Base. Because my biological father worked at Edwards and Groom Lake aka Area 51. He worked on a program that the ground crew nicknamed the aircraft Grease Lightning, due to its speed. This aircraft was faster than the SR-71. This aircraft was being tested back in the late 80's to the 90's. One night out in California City. The whole family went outside to watch a meteor shower. When we looked up. We saw something very bright and very high streaking across the night sky. It went from the south to the north in about a minute. We didn't hear anything. I went inside and grabbed a camera to take pictures. I gave the film roll to my biological father to have processed. I was later told nothing was on the film and I never saw the negatives. What happened to the film? I don't know. But that night in the Mojave desert, I saw something so fast, it glowed bright white. After that night, my biological father told me about a program at Groom Lake they nicknamed Grease Lightning.

Looks like a Convair Kingfish! Neat

Thought experiment; could the X-37 be a parasite craft to another aircraft?

We called it Aurora. It was Top Secret and yet everybody knew about the black op Aurora. 1986, They scrapped the SR-71, around then, so it as natural to assume they had something 100 times better.

I have a 1/72 model of this aircraft.

I actually saw a chain of dough-nut shaped clouds, exactly like those at about 20:50, in the middle of COVID lockdown across the skies in Melbourne, Australia whilst taking my partner's mother for her cancer treatment one day... Didn't think much of it at the time, other than they looked unusual, but yeah, they looked exactly like the photo shown here...

the name of the plane makes me slightly uncomfortable

I thought only the Soviets had crazy, mind boggling, ridiculous, top-secret projects. Well, it looks like Uncle Sam was crazy as hell!

If this plane was built, then the SR-75 Penetrator’s XR-7 Thunderdart is the real SR-91 Aurora. Aurora actually referred to the B-2 Spirit because that was the code name for it but that didn’t mean hypersonic aircraft weren’t being tested. The SR-72 will likely be the first hypersonic aircraft to get to hypersonic speeds on its own.

What a coincidence! I named my member "The Penetrator" too, although mine doesn't perform deep interdiction missions 😢

YES!! I saw those exact contrails or plumes in Utah. I was living just outside of Salt Lake City and have always wondered about those.

As a former field grade officer, who worked in an area close to where you were talking about all I will say is this. Well, I was in processing my paperwork had written in hand meeting with commanding general of base. When I went to the assigned nondescript Bill, at the assigned time, I found myself with just two other officers. The general appeared promptly. He knew each other by name, and he knew our educational background. He informed us as we were the most highly educated officers on the base and highly trained observers he was putting into each of our personnel jackets in order from a general officer not to discuss anything we saw, which we thought, was highly unusual or abnormal to us in the air, unusual, sounds or anything extremely bizarre, which we observed on the ground..As I have no desire to spend the rest of my life in Fort Leavenworth this is all I will share. I will leave by saying this, the meeting with the general was not , a waste - there was most definitely a purpose behind this meeting! I really don’t care what anybody thinks about me! I know what I observed with my senses.

For the longest time i thought the SR 71 was the most badass, beautiful looking plane. I didn't think it could look any better until you showed us THIS MAGNIFICENT BEAST! :D

man, that must be one hell of a strong cone! @ 22:33 - 22.36. :) but awesome vid and plane, i haven't heard about this one yet....

I have both the SR-71 & XR-7 models sitting in my basement right now. They need to be built.... again. (long story), but this vid just pushed them up the list to be built.

I remember this featured in the Groom Lake special issue from Popular Science (if I remember correctly) from the early to mid 1990's.

This plane is like a large ar-71 with a cooler design with an sr-72 on top with again a cooler design

mach 6-11(mach 17 theoretical) unclassified oblique detonation wave engine it uses a ramp in the detonation chamber to keep it stable to pulse it

3:53 You misinterpret rotating detonation engines, at least I think... you show the aircraft riding pulses of explosion when in fact in these engines use one single continuous detonation rotating around the inside of a cylindrical combustion chamber (These engines are now in the public domain, Scott Manley has a good vid on them, they're also slated to go into newer cruise missiles)

Yeah... a lightweight methane/oxygen pulsejet does not really instill confidence for reusability. Having life support onboard seems simply insane for an orbital deployment 'tool'. Also, Soviets were done by then , so it was like "why bother"

Jesus, that dog song made me believe some puppy was outside my house.

it's predecessor was the sr69 vibrator

If the SR-75 needed a 10 mi runway in NV, how did they get off the ground in Scotland? What good does a parasite with a 250 nm range do over enemy territory? -- they can't in-flight refuel to get back to a friendly runway. If the SR-75 can fly without being seen by radar as stated in the beginning of the segment, why did it need an F-111 escort to confuse FAA radars (which are nowhere near as sensitive as air defense radars) . . . BYW the FAA tracks on your transponder . . . normally no one even looks at the skin paint return. AND, re: ~18:40 comment about sitting on the tech -- the D-21 drone is a ramjet (Mach 3.3) -- we did not have a useable scramjet until decades later . . . . As to model makers being accurate -- the model of the "Aurora" was all rounded up until the F-117 was revealed/disclosed. . . The video shown at 20:00 does not even show rings on a rope -- it is the trail of a rocket -- a gap during staging-- upperstage ignition with the distinctive "flaring" of the exhaust as it reaches higher altitude.

This aircraft makes a whole lot of sense in the mid-80s. I was on board an aircraft carrier and back in those days you knew how to identify aircraft in the pitch black darkness out to see by their lighting signature and if they have app afterburners that too now I used to go by area 51 all the time for 15 years as a trucker and one night I did see some thing with a wide angle rear end could not see what it was because it was just too dark but I knew whatever was flying was huge And on the back of the engine it was pulsing and there were a couple of chase aircraft around it now I’m not one of these alien conspiracy dudes. I do believe there’s extra terrestrial life but they’re a whole lot smarter than us so they don’t need our technology, but seeing this animation, makes it all clear what I saw that night testing that’s all they’re doing out there in Groom Lake is testingdifferent products

Mate, I hope you will also discuss the Saab Gripen. Looking forward to it.

Back in the 1950s, the idea was to fly higher than SAMs hence the U-2 until Gary Powers was shot down. Then in the 1960s the idea was to fly so fast the SAMs could not catch up hence the SR-71. Then in the 1970s the idea was to be undetectable to the SAMs hence the Tacit Blue. There is no point in a large fast aircraft as the successor to the SR-71. The successor is no doubt a slow, small aircraft invisible to radar. This is why interest in hypersonics disappeared - there’s no point in it.

8:40 *"There's nothing that can shoot thi-"* F-15: 🗿🇺🇲 🦅

To my knowledge, the D-21 drone was hazardous to launch from the M-21. The drone was converted to be dropped from B52's instead.

They tried a similar thing with the sr71. The small plane hit the tail on the blackbird and caused it to disintegrate at mack 3. Only the pilot survived.

Didn’t see donuts on a rope but me and my buddy saw the little jet fly right in front of us in between to ridges, we were looking at hogs on the other ridge when we seen it skirting up the valley, it was flying level making no sound then it flipped on its side with what would be the cockpit facing us then flipped back level and then either took off so fast you couldn’t see it leave or it had some sort of cloaking device because it completely disappeared,all the while it made not a sound. It was approximately a 250 to 300 yards away flying straight across in front of us. This was in Northern California (Humboldt County) in between petrolia and honeydew, fairly remote area.

I heard an aircraft, with the unique sounding pulse wave detonation engine(s) on two separate occasions between 8 and 15 years ago flying high over the Central Valley / Livermore Valley . I got the impression that the plane was negotiating a wide turn left toward the Pacific away from a flight path over the San Joachim valley. The sound was very deep and eerie sounding; I could tell the aircraft was flying very high. I listened to it for a while; nothing like when a jet flies overhead at 30 to 50 thousand feet.

I lived in the antelope Valley from the 70s until the 2000s then boron next to Edward's air force base that's where i seen alot of big aircraft taking off quick out of Edward's afb..every night almost...there's no doubt Lockheed in Palmdale has the facilities to build and conceal such aircraft..watching the sr71 do touch and goes in the 80s was cool but there's always been something more for years

I was lucky enuf to see the 71 go up off the west coast north of San Diego! A couple months ago. It actually deployed the drone as shown. Wish I could have witnessed the entire flight. It was at night as well but that made it better…

Gravity wave,threocally still unknown, except for the anomaly above the triangle on skinwalker ranch = truly a feat of engineering of epic design

XSSI was my favorite project.....A2/D2 on a whole new level.........just escort the bird in a ray from a SAT to blind everybody.

I used to have a model of this Aircraft the SR-75 penetrator. Truly amazing.

I always loved you're channel and waiting for new videos for crazy animation

Excellent stuff bro

I remember building this model, grew up in palmdale, so this stuff fascinated me

You're leaking more government secrets than your average War Thunder player

The animation of the thing taking off is killing me. The thought of using a PWD engine on takeoff is hilarious. 😂

I can still see it clearly, I was on a trip to yoesemite and I stepped outside on the balcony and looked up at the stars, I remeber clearly seeing rings with a small plane flying up above and I never found out until I watched your video, what it might be.

Considering the CIA will fly this first, it fly's out of a non Air Force facility. People think Area 51 is the spot. Try Dugway the real area 52. They have a runway that could, and did, land a Space Shuttle. The size of Dugway is mindblowing!

my first vid that ive been less than 20 minutes late for lol. Nice vid, really awesome aircraft!

the VFX reminded me of a sighting i had early 2000s, although i dont know why one of these would be down under. Western Sydney AU late one evening, there was an object moving North to South almost directly overhead (a little to the east) what caught me as strange was the pulsating of the engine (visual only, i heard no sound) it was a bright yellow/orange triangular output from the rear of the craft very distinct flickering maybe 2-3 times a second, from memory. i thought it may have been a rocket or space shuttle i later looked it up & shuttle was docked with ISS at the time. it moved across the sky, i noticed it at very high angle up & watched it disappear to the south moved at similar speed from my perspective as ISS. Maybe 1-2 minutes before it was out of sight but the entire time the engine was pulsating in the same manner. One of those thing i wondered all this time what i saw, it was very unusual for our part of the world. there is no rocket launches etc. of any explanation so far, this seems to fit...

Combine the mother ship and the "parasite" ship together, and that's what we have today. The mother ship isn't needed anymore. They using combined cycle engines, like Darkstar in Top Gun. Seriously. Lockheed has been working on the SR 72 for a decade now. I'd bet it's already flying.

After the failure of the M-21 and D-21, they wouldn't invest in creating this.

I’ve got two copies of this as an Italieri/Testors 1/72 scale kit from the mid 80s. Given the disaster arising from trying to launch the D-21 from the M-12 (control loss trying to go through the mothership shock cone, which would probably flameout the parasite ramjet engine), the D-21 was switched to airdrop from a B-52H with a huge rocket booster. Still no a howling success. Satellites or low observable drones make more sense for reconnaissance, perhaps a droned U-2. Unable to be shot down? If we can build anti-ballistic missiles, then anything flying in the atmosphere can be killed.

The pulsing jets makes the jet’s flying so violent

The only issue I see is that the M-21 program had a fatal flaw of the D-21 crashing back into the mothership destroying it. And then they literally hid the other M-21 in the middle of the desert for years so no one else would die.

The Bird is still the sexiest plane ever built.

How do they cool the cockpit? This is one of those things that I call a "possible" but not a probable. My theory on black aircraft is that the vast majority of what they are secretly building these days are hypersonic drones. Both for reconnaissance and strategic uses. So this SR-75 was operational 35 years ago in 1989, and somehow it is still secret~? Not very likely folks, think about it. Great video!

Lockheed bought the rights to the Reaction motors airbreathing rocket, i wouldn't be surprised if it's in this project. a SSOT design is in the works but Briton can't afford it right now. I also seen a AR-71 fly over head at top speed back in the 90s it literally takes less then 5 seconds to go from horizon to horizon and it's gone.

Loved your sneak-peeks from Dubai as well! Keep up the great work!

I can't wait for the sr 72, and Im excited to see how the b21 will work. I wonder if it'll do a great job

Can't fool me. This is just the Cobra Night Raven from my 80s G.I. Joe toys.

looks like something from kerbal space program