Sorry, but I would agree with those who said not having an ejection seat is irresponsible. If you just don't have the budget, I get it, otherwise it's Russian roulette.
Planetary Defense: Based on their backgrounds and reading history, I guarantee these folks have thought about planetary defense and anti-satellite uses. I wonder what changes or increase in scale / number of launchers is needed for hitting arbitrary targets.
how do these guns scale? what's the difference in payload and muzzle velocity between 1 and 2 meter diameters at the same barrel length? what's the difference between 1 and 2 km barrel lengths at the same diameter? they gave dimensions and numbers for everything, until the very end when they say "what we really want to build will shoot payloads of 40,000kgs into space" i screamed "what?!" and then the video ended
You don't have to. If you go straight sideways while the earth curves away under you, you eventually end up in space. They might have the gun be slightly inclined, but it wouldn't be practical to build a 10km-long gun pointing straight up.
@@matteol4 Yeah, it sounds like the plan is to put this thing in the middle of nowhere and launch out over the ocean, hopefully in a direction without much going on. Also note that they get from the ground to space in a couple of seconds, so it's a big slice of space, but a tiny slice of time, and could probably be done in a way that's not that disruptive. Plus, even regular orbital rockets don't go straight up, and start to pitch sideways basically as soon as they leave the ground, so exclusion zones for regular rocket launches are already pretty big.
Not only does it need to survive acceleration, but air friction. It has to be moving faster than a space capsule returning to earth from orbit at ground levels of atmospheric density. In other words, faster than orbital speeds, but with the air being as thick as it pretty much ever will be. Much of that velocity burns off, quite literally, and I just can't imagine what kind of material will be able to withstand so much gnarly air friction without burning up or liquefying.
Spinlaunch, another space-gun company, is expecting about 10,000g of acceleration in their final launcher, and they've done testing that apparently shows that smartphones can survive it unmodified. Things with moving parts, or things with parts that stick out, etc., need to be adapted, though, and certainly you could never send anything alive (that acceleration would turn a human into a paste). The idea that he proposes in the video that you could send an off-the-shelf excavator in a shipping container sounds pretty ridiculous to me.
Is there any evulation of burst disk bursted geometry? Basically do the fins in the bursted disk have an impact on flow? Could they be used for example, to spin the air and create a rifling effect. Awesome story. S3 killing it again. Keep on building!
I wonder how they will actually get stuff to go up rather than horizontal, theres got to be some serious forces on any kind of elbow when theres a 500kg load moving at mach 25.
Well, they said they want to build a 10-15 km pipe, and shoot a slug that’s 3000kg, but would really want to do one that could do 40k if there was better funding. Whew
You don't, you just go in a straight line sideways and the earth curves away under you. They might incline the thing a little to spend less time in atmosphere, but they're not gonna turn, at least until they get to orbital altitude.
man "That thing we're building out in the desert like half a kilometre, long biggest gun ever, Tinker toy I don't care about it I hate how small it is it upsets me and makes me feel inadequate I must have something that is even girthier!" fucking legend
i come up with idea long time ago, a submarine launches nuclear warhead using hydrogen fueled canon. so the submarine just carrying the warhead no need for rocket, to fire the warhead the nuclear reactor produces the hydrogen store it in a tank ready to fire. how it fire i have 2 options for the subs tilt up on it nose where the canon is exposed or the cannon being erected like those ERECTED MOBILE LAUCHER, so the cannon is outside the submarine.
A 10m boat tail will be under the booster for ~1ms at 8km/s. You folks are probably going to revolutionize gas valves just out of sheer necessity. Curious if a standing wave inside the boost bottle stage could be used to meaningfully densify the shot.
they're greatly exceeding the speed of sound of these gasses, so not exactly sure how/if that would work, but i'm a bass player who fuckin' knows?? neat idea
Cool, so instead of getting the bell peppers immediately yourself, you can wait longer for the robot to grab it then still have to walk all the way to the fridge to grab it out of it's hand
