This happened in 1957. You might think the plane caught up with its own bullets, but what actually happened was the pilot fired a 4-second burst from the 20mm cannon during a test flight, then climbed at high speed and dove back down faster than the speed of sound (i.e. "faster than a apeeding bullet"), where he passed through the cloud of his own rounds which had decelerated due to air friction. So it wasn't a defect in the plane, it was really a random accident nobody had thought about because planes traditionally weren't fast enough to perform a maneuver that would make such a thing possible.
The... the thing is constantly leaking, when it is on the runway, prior to take off.
Because its cruise speed and altitude are such that the surface of it is so heated, that it expands the metal, and stops the leaking.
That is how fucking extreme this thing is.
Now if you want might vote for even more scifi than that?
Behold, the SSTO we could have been building for the last 20 years, if we'd just used the construction method for the fuel tanks that the engineers argued should be used, but couldn't be, because we needed to do all the experimental processes on a single craft, and if they didn't all work, Dick Cheney will cancel the program...
And the summary that I gave earlier is basically the tl:dr of it.
We could have been working on making these things to replace shuttle. A reusable, heavy lift, single stage to orbit craft.
But nope!
Nope, instead we get... what are at now, 13, 14 attempts by Elon Musk to even achieve actual orbit with his Starship? Still haven't managed that yet.
So now the ISS is slated to get deorbited, China will have the only major space station, and we will have a ... Kessler Syndrome generation program, in the expansion of StarLink into 'StarMind', those million orbital AI datacenters Musk has recently had CGI made for, and will never happen.
Its some pretty crazy shit, that we literally know how to do... and just... don't.
Because stock market line go up is more important I guess?
Gotta pay for more missiles to blow up brown people?
But yeah, aerospikes are awesome because they're like the ... jack of all trades of effective thrust at different ambient air pressures/densities.
They're not the most efficient or powerful at any particular altititude band... but they're shockingly decent at a whole bunch of them, across the spectrum, because of their fundamental design.
So they're literally perfect for an SSTO, reusable concept. Definitely do a full inspection and maintenance cycle after every mission, they're kinda complicated... but, if you take care of one... it should just basically keep working for quite a long time.
"The D-21 was designed to carry a single high-resolution photographic camera over a preprogrammed path, then release the camera module into the air for retrieval, after which the drone would self-destruct."
1 crashed in California in 1971. Another was given to NASA for testing until 1978. The surviving 2 are in museums. Couldn't find any information on whether they saw actual active duty, but they were technically in service in the 1970s.
‘Y’ means it was the second prototype batch after ‘X’. Sometimes the Ys would be modified with the final spec and enter service but typically they would lose the Y designation at that time. For instance the prototype YB-36 entered service as a reconnaissance RB-36A after modifications.
The Tiger gained the dubious distinction of being the first jet aircraft to shoot itself down.[8][9] On 21 September 1956, during a test-firing of its 20 mm (0.79 in) cannons, pilot Tom Attridge fired two bursts midway through a shallow dive. As the trajectory of the cannon rounds decayed, they ultimately crossed paths with the Tiger as it continued its descent, disabling the aircraft and forcing Attridge to crash-land the aircraft; he survived with a broken leg and multiple broken vertebrae.[10][11]
FYI if you're unfamiliar with ballistics, as most people never think about it. When a bullet is fired out of a gun, it is dropping downward at the same speed as if you were holding in your hand and just let it go.
People who don't normally shoot rifles never really stop to think about that. The forward velocity doesn't keep the bullet from falling towards the ground any slower. Rifles usually fire the bullet at a slight upward trajectory because of this. So it may climb an inch and a half higher over the first 100 yards before it starts heading towards the ground.
I doesn't seem like catching up to me because catching up implies speed was increased to intercept, not distances were different followed by intercept.
If I fire a gun nearly perfectly straight up, run forward 10 feet and catch the bullet in my shoulder it wouldn't feel right to say that I fired, ran fast enough to catch up to my bullet and shot myself.
You fire a bullet and it accelerates downward at 9.8m/s2 until it gets to some terminal velocity. It moves forward at some velocity with a braking acceleration that's non-linear and gross. Result is a downward motion in a basically parabolic arc.
The plane, however, is accelerating downward faster than the bullet because of thrust, and also accelerating forward.
By the time drag has essentially stopped the bullet the plane is underneath it.
When phrased as "caught up" it makes it sound like the plane went as fast as the bullet, when the plane had a top speed of mach 1 and the bullet ~mach 3. They just took different paths.
Your entire line of logic is broken with how this happened, and how bullets work. Also, bullets start getting slower the moment they leave the barrel. A bullets terminal velocity is MUCH, MUCH, slower than when it leaves the barrel.
The plane shot bullets as it was arching down, so the plane was traveling under the bullets previously fired trajectory, and those bullets dropped down to where the plane wound up at because the bullets slowed enough to get there at the same time.
The f-11s weren't crazy fast or anything. It was doing around 800mph when it happened.
There's literally no other scenario to shoot yourself with a bullet shot towards the horizon (not straight up). A bullet has to be going much faster than a plane when it exits the barrel. A bullet has to start slowing down from drag the moment it leaves the barrel, so there's no scenario that can exist where a plane can shoot itself in a way that isn't catching up to a bullet that was getting slower.
I not sure how my logic is wrong when you then described exactly what I said.
We both understand how objects move. It's a semantics question, not kinematics.
"Caught up" implies moving fast enough to close the distance in a persuit like fashion, to me at least.
It's not catching up with someone if you take a shortcut and wait for them to arrive.
Since he was decreasing in altitude (presumably at approximately a straight diagonal vector) and the bullets were traveling in an arc, I guess the linear distance travelled by the plane is less than that travelled by the bullets?
Either way, I think "out-ran" is appropriate here since the plane was necessarily ahead of the bullet on the horizontal plane since it was hit by the bullets.
He was going around 600 mph, fired the gun, then he dove down more and hit the afterburners to pick up speed and start leveling back out and was around 8 or 900 mph when he met up with his then, much slower than they were going bullets.
So he got faster and went low, while the bullets kept getting lower and slowing down from drag.
You don't actually need to be ahead of them on the horizontal plane. The plane just needs to be able to cover the distance the bullet travels as it slows from drag before the bullet falls to the intercept point.
I was gonna say at least a portion of the plane had to be ahead of it unless it struck the very tip of the plane (which wouldn't likely take it down).
But it is traveling at supersonic speeds. So yeah - the bullet could just be falling in front of the plane at that point and the plane could run into the bullet - so it'd be traveling faster than the bullet at that point, but the bullet would be in front of it. Weird lol
This happened in 1957. You might think the plane caught up with its own bullets, but what actually happened was the pilot fired a 4-second burst from the 20mm cannon during a test flight, then climbed at high speed and dove back down faster than the speed of sound (i.e. "faster than a apeeding bullet"), where he passed through the cloud of his own rounds which had decelerated due to air friction. So it wasn't a defect in the plane, it was really a random accident nobody had thought about because planes traditionally weren't fast enough to perform a maneuver that would make such a thing possible.
edit: story on wikipedia
That's just because Lockheed never put a gun on The Blackbird.
SR-71 would easily have been able to, they were just too chicken to give it guns and hardpoints like god intended. Cowards.
They made an interceptor version of the SR-71 called the YF-12. I don't know if it ever entered service though.
The also made one with ... a parasite, mini me version of itself.
https://www.museumofflight.org/Exhibits-and-Events/Aircraft/lockheed-m-21-blackbird
https://en.wikipedia.org/wiki/Lockheed_D-21
https://en.wikipedia.org/wiki/Lockheed_A-12#M-21
Two, actually.
They made two pairs of the M-21 and D-21.
And yes, that's D for Drone, in 1963.
A nearly hypersonic drone, launched from a Mach 3+ capable mothership, in 1963.
We went from the wright brothers to that in like 55 years
That is possibly the most sci Fi ass looking thing I've seen outside of an 80s b-movie. You know some hyper nerd designer was extremely proud of that
It is quite literally fantastic.
The... the thing is constantly leaking, when it is on the runway, prior to take off.
Because its cruise speed and altitude are such that the surface of it is so heated, that it expands the metal, and stops the leaking.
That is how fucking extreme this thing is.
Now if you want might vote for even more scifi than that?
Behold, the SSTO we could have been building for the last 20 years, if we'd just used the construction method for the fuel tanks that the engineers argued should be used, but couldn't be, because we needed to do all the experimental processes on a single craft, and if they didn't all work, Dick Cheney will cancel the program...
The VentureStar.
https://en.wikipedia.org/wiki/VentureStar
Yep, we built the scaled down mockup of this, the X-33.
https://en.wikipedia.org/wiki/Lockheed_Martin_X-33
And the summary that I gave earlier is basically the tl:dr of it.
We could have been working on making these things to replace shuttle. A reusable, heavy lift, single stage to orbit craft.
But nope!
Nope, instead we get... what are at now, 13, 14 attempts by Elon Musk to even achieve actual orbit with his Starship? Still haven't managed that yet.
So now the ISS is slated to get deorbited, China will have the only major space station, and we will have a ... Kessler Syndrome generation program, in the expansion of StarLink into 'StarMind', those million orbital AI datacenters Musk has recently had CGI made for, and will never happen.
Nope, I'm not mad, definitely not mad, nope.
I remember first learning about that engine design and being similarly mad about why it never saw any use.
Yeeep.
Its some pretty crazy shit, that we literally know how to do... and just... don't.
Because stock market line go up is more important I guess?
Gotta pay for more missiles to blow up brown people?
But yeah, aerospikes are awesome because they're like the ... jack of all trades of effective thrust at different ambient air pressures/densities.
They're not the most efficient or powerful at any particular altititude band... but they're shockingly decent at a whole bunch of them, across the spectrum, because of their fundamental design.
So they're literally perfect for an SSTO, reusable concept. Definitely do a full inspection and maintenance cycle after every mission, they're kinda complicated... but, if you take care of one... it should just basically keep working for quite a long time.
"The D-21 was designed to carry a single high-resolution photographic camera over a preprogrammed path, then release the camera module into the air for retrieval, after which the drone would self-destruct."
I was always a fan of the YF-19
Which transformer is this? Need a model kit asap.
They only built 3 of them.
1 crashed in California in 1971. Another was given to NASA for testing until 1978. The surviving 2 are in museums. Couldn't find any information on whether they saw actual active duty, but they were technically in service in the 1970s.
‘Y’ means it was the second prototype batch after ‘X’. Sometimes the Ys would be modified with the final spec and enter service but typically they would lose the Y designation at that time. For instance the prototype YB-36 entered service as a reconnaissance RB-36A after modifications.
I'm not sure a weapons system that could be used before it disintegrated from the stresses of the SR-71 accelerating to cruise speed, exists.
It has a weapon: information speed.
https://en.wikipedia.org/wiki/Grumman_F-11_Tiger
How is that not catching up to them?
FYI if you're unfamiliar with ballistics, as most people never think about it. When a bullet is fired out of a gun, it is dropping downward at the same speed as if you were holding in your hand and just let it go.
People who don't normally shoot rifles never really stop to think about that. The forward velocity doesn't keep the bullet from falling towards the ground any slower. Rifles usually fire the bullet at a slight upward trajectory because of this. So it may climb an inch and a half higher over the first 100 yards before it starts heading towards the ground.
I doesn't seem like catching up to me because catching up implies speed was increased to intercept, not distances were different followed by intercept.
If I fire a gun nearly perfectly straight up, run forward 10 feet and catch the bullet in my shoulder it wouldn't feel right to say that I fired, ran fast enough to catch up to my bullet and shot myself.
You fire a bullet and it accelerates downward at 9.8m/s2 until it gets to some terminal velocity. It moves forward at some velocity with a braking acceleration that's non-linear and gross. Result is a downward motion in a basically parabolic arc.
The plane, however, is accelerating downward faster than the bullet because of thrust, and also accelerating forward.
By the time drag has essentially stopped the bullet the plane is underneath it.
When phrased as "caught up" it makes it sound like the plane went as fast as the bullet, when the plane had a top speed of mach 1 and the bullet ~mach 3. They just took different paths.
Your entire line of logic is broken with how this happened, and how bullets work. Also, bullets start getting slower the moment they leave the barrel. A bullets terminal velocity is MUCH, MUCH, slower than when it leaves the barrel.
The plane shot bullets as it was arching down, so the plane was traveling under the bullets previously fired trajectory, and those bullets dropped down to where the plane wound up at because the bullets slowed enough to get there at the same time.
The f-11s weren't crazy fast or anything. It was doing around 800mph when it happened.
There's literally no other scenario to shoot yourself with a bullet shot towards the horizon (not straight up). A bullet has to be going much faster than a plane when it exits the barrel. A bullet has to start slowing down from drag the moment it leaves the barrel, so there's no scenario that can exist where a plane can shoot itself in a way that isn't catching up to a bullet that was getting slower.
I not sure how my logic is wrong when you then described exactly what I said.
We both understand how objects move. It's a semantics question, not kinematics.
"Caught up" implies moving fast enough to close the distance in a persuit like fashion, to me at least.
It's not catching up with someone if you take a shortcut and wait for them to arrive.
Since he was decreasing in altitude (presumably at approximately a straight diagonal vector) and the bullets were traveling in an arc, I guess the linear distance travelled by the plane is less than that travelled by the bullets?
Either way, I think "out-ran" is appropriate here since the plane was necessarily ahead of the bullet on the horizontal plane since it was hit by the bullets.
He was going around 600 mph, fired the gun, then he dove down more and hit the afterburners to pick up speed and start leveling back out and was around 8 or 900 mph when he met up with his then, much slower than they were going bullets.
So he got faster and went low, while the bullets kept getting lower and slowing down from drag.
You don't actually need to be ahead of them on the horizontal plane. The plane just needs to be able to cover the distance the bullet travels as it slows from drag before the bullet falls to the intercept point.
I was gonna say at least a portion of the plane had to be ahead of it unless it struck the very tip of the plane (which wouldn't likely take it down).
But it is traveling at supersonic speeds. So yeah - the bullet could just be falling in front of the plane at that point and the plane could run into the bullet - so it'd be traveling faster than the bullet at that point, but the bullet would be in front of it. Weird lol