US Navy Railgun Projectile - How it was Filmed in Flight
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- Опубліковано 6 гру 2018
- I did a video called US Navy Railgun, and in that video it shows a Railgun firing a projectile going length ways across the screen at up to Mach 7, yet in the footage, it looks like the camera is panning around and following the projectile the whole way.
Since I made that video, I have had more than a few people ask the question, how can a camera track a projectile moving so fast. Which is a valid question, and I myself wanted to know the answer, so I investigated how it’s done and here is what I found out.
The camera filming the projectile works by having a computer-controlled, high-speed rotating mirror, in line of sight of a high-speed camera, the high speed mirror tracks and follows the projectile, keeping it in center of the screen best it can for up to 100 meters.
Thanks for watching
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► SpecialisedImagingUK UA-cam Channel - / @specialisedimaginguk
► Tracker2 Video - • Specialised Imaging - ...
► hadlandimaging UA-cam Channel - / @hadlandimaging
► Hadland Video - • Hadland Flight Followe...
► ikinamo UA-cam Channel - / diginfonews
► ikinamo Video - • Dynamic target trackin...
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★★★ *FREQUENTLY ASKED QUESTIONS ABOUT THE VIDEO / FACT UPDATES* ★★★
*1) how does the mirror track the projectile?* - I am not sure, but I would assume the camera tracking system is tied into the firing of the weapon and the mirror starts rotating at a set speed, calculated off the projectile speed. Either that or it has an amazing tracking system.
*Ryan Heat said in the comments below* - The mirror movement is generally started by using a flash detector pointed at the muzzle. This way the Flight Follower can be used with any medium/large calibre systems without making special interfaces or modifying the firing system. Also the system can work using an estimated velocity, or it can measure the velocity at various points along the flight path and adjust the speed of the mirror to suit. *"I know this because I designed the system"*
*2) What is the smoke coming out of the railgun* - That is metal on metal contact from the round going down the shaft of the gun, hence why shooting this gun starts tearing apart the barrel.
😙💨
The Mini Flight Follower is actually manufactured by MS Instruments. I know this because I designed the system :) The system can work using an estimated velocity, or it can measure the velocity at various points along the flight path and adjust the speed of the mirror to suit. If you have any other questions, just let me know!
@@RyanHeath85 nice thanks :)
Oh, and the mirror movement is generally started by using a flash detector pointed at the muzzle. This way the Flight Follower can be used with any medium/large calibre systems without making special interfaces or modifying the firing system.
S
I was wondering how they panned so fast and so well, thanks for clearing that up
Happy to help!
With a mirror! The camera stand still, the mirror rotate
Amateurs... Just take another railgun and shoot a camera next to the projectile
you do it for demonstration
Awesome, I laughed so hard!
hahhahahhaahah
Why don't we just strap a GoPro on the projectile?
Rofl
Wow! In all the times I've watched videos of rail guns, I was always amazed by them and projectiles as well as the incredible frame rate. But I never stopped to wonder how amazing it is that the camera was even able to track the projectile. Thanks for the explanation.
:)
That mirror tracking an object at high speeds is mind blowing !
You learn something new every day.
Holy crap! That's some of the coolest stuff I've ever seen in a 3 minute vid ( well, when you don't consider the implement of war factor).
That real-time ping pong ball demonstration thing was incredible
My friend provided the test projectiles for the Navy back in 2007, they were just under 2 inches tall and made out of titanium. There was about 6 or 8 different projectile profiles he made for the contract. Once the Navy finished their tunnel testing, they returned them to him and I was able to play with them in 2008. He lives in southern Oregon and is an Army Veteran who owns his own company.
Curious Droid made a nice video that goes a little more in-depth about how these work.
I love how you can very clearly see the pressure around the projectile as it slices through the air.
I like the little space ship at the start
Thanks :)
Yes !
Its speed is easy to follow.
very nice, interesting and informative video. and this was prepared as an answer to some viewers of the previous video. awesome job
We used these cameras, the best was an older version that used air driven mirror rotation. Hardest part was tuning time to firing to actually catch the shot in the rotation perfectly.
Seen it done where the weapon fires based off the mirror and not the other way around, similar system to how a plane machine gun in older prop planes could fire through the props without hitting them, except done electronically basically arm the device and when you 'fire' the system takes over for a fraction of a second and waits for the rotating mirror at a given specific rpm to rotate to the precise angle in order to track, takes a lot more math but with expensive ammunition it ends up saving a lot in the long run
thanks for all your great work and great videos :) i enjoy your channel very very much. HAPPY HOLIDAYS.
Hahaha the intro was so cute I cudnt help but watch it over and over again...so harmless and so innocent..I can't stop haha!
The insects can be tracked for many meters, with a cam a few inches behind them.
The system works with cables, with wires.
3 wires, 1 up down, one left right and one wire for front and back.
Third person cam, just behind a dragonfly.
Never more then 3 inches away, for macro footage.
Amazing how it is done.
Good stuff never thought a mirror would track a missile.
It's not a missile
This video gave mirror more credit than it deserves I think. The mirror just give you a much wider field of view that only a slight angle change could show you the entire trajectory. So more credit should be to the camera that is able capture this from the mirror
Woah, that's pretty EPIC
Awesome vid man, great explanation!
That’s brilliant!!! I work for the company making that rail gun and I had no idea how they tracked a Mach 7 plus projectile.... not that I had ever thought about it.
That’s cool. During your other video about the Navy’s railgun that was the first thing I wondered when I saw it.
yeah a few people did, hence why I made this video, because I myself wanted to know as well.
This is awesome, gold, pure gold
I HAVE wondered about this!! Now, I know! Well done, WW.
Thats epic! They look so graceful in flight!
Interesting and worthwhile video.
Awesome video once again.
Thanks
Truly amazing cameras they come along way
That was simply mind blowing
Thank you for that informative video.
I remember decades ago this was done by rotating a mirror by hand to capture the flight of artillery shells. Amazing to see the shell spinning as it flew and ever so slightly out of a perfect path as gravity affected the shell to tilt downwards as it left the barrel.
Impossible to do by hand with a mirror. The mirror is used for less rotation mass and it's tracking on 3 axes. You would also be tacking backward No way a human can do that by hand. You're confused about how it works. That neer happened decades ago by hand. You're fibbing.
Very informative video. Thanks!
Nice work man!!!!
And now I know, too! Thanks, very interesting and gets great result!
Excellent explanation!
Pretty cool to see the shockwave on the last projectile firing from the tank👍🏾
Thanks! This was super cool!
Reason why “spinning mirrors” is better than spinning a camera + lens: mirrors has low mass, smaller motor, easier fine control of mirror, faster response when starting mirror spin.
only if the mirrors are metal, the glass will give double vision
@@PavelMy not if it's a surface mirror, i.e. the reflective surface is on the glass, not behind it
@@SivaKanthSharma and what is the glass for then
@@akiraakiraakiraakira a surface to apply that reflective surface?
Also easier to make it flat
@@SivaKanthSharma glass is very brittle though, maybe it's just me but the glass seems superflous
Awesome video
mach 7 is 2382 meters per second, to even track something going that fast is amazing, but to be able to record video so sharp you can make out detail on the projectile is something else !
the slow mo guys did this, i was surprised this wasn't in your video
great video
Just amazing!
I remeber watching a show on PBS about slow motion photography back in about 1980 or so. They had the "same" technology with a rotating mirror back then, too. The video quality was horrible though; just a low resolution black and white video.
I was impressed as hell, though :) Actually seeing a cannon shell in flight! Amazing!
Thanks. Now I want to purchase one of these cameras.
Very cool series
Great work....Thanks for sharing
Congrats on 200k subs :)
Thanks i just woke up and saw I was 200,021 :)
Fab! I wondered about that. Thanks.
Thanks for sharing!
Keep the good work ..
Thank You excellent video
I thought it was animated. I was thinking... that's a damn good animated videos, it looks so real.
Dude! That is cool!
curious droid did a really great video on this topics
Very cool!
Wow the shockwaves in both projectiles are clearly visible...look how they look exactly like the waves ships produce since it's the "exact" same phenomenon
Thanks for the follow up 👍
Crazy how you can see the projectile deforming the atmosphere around it😲
I learned a lot, and I didn't even look for it!
I definitely didn't know that, but now I do. thx m8
Nearing 200,000 subscriber! What an amazing pace you have had. Well deserved !
Thanks Handsome, i missed this comment 2 months ago
The shell looks like a tiny spacecraft 👽💚
Very interesting!!
Too cool. Thanks!
I learned something from this video
Those cameras work by knowing the expected volocity of the projectile and are triggered via a set of cameras that detect how long it takes the projectile to pass through the two cameras under a barrel.
Plug the FPS measurement in and away it goes, if your tracking something that's Likely to slow down after passing through an object it will eventually end up out the frame.
I figured they strapped a gopro to a second projectile
Very good !!!!👍👍👍👍
1:16 you can very clearly see the shockwave formed by the projectile above the muzzle starting from the tip of projectile.
yes . this is insane! amazing
Multi high speed cameras can also be set up and after they've shot, a computer can put the images together. That's how I thought they had done it. Thanks.
FINALLY!!!! My life is complete.
I like to think about the excited conversation the munitions engineers were having conceptualizing the speed and destructive capabilities when THAT ONE engineer asks, "Yeah, but how are we going to stop it?"
Thanks for the informations
Very good
Amazing !
Pretty cool thanks.
Excellent
1 year ago? Showing this 1 year ago? It is already 20 years old news! What we have now is indescribable!!!
I'm not into taking pictures or any of that jazz but this video was outstanding. I guess I'm mostly into things blowing up and fire. Sorry if I was misleading and not totally honest with everyone to start.
Thanks Dee
informative!👍
Brilliant👍
You can see the air being compressed around the rocket with your naked eye (if slowed down enough). That's wild.
that's so cool
1:10
The shockwaves from the explosive power of the railgun
That's not the railgun, that is a tank firing a round
@@WonderWorldYTC ah, my mistake
@@broskydoodle6697 APDSFS... even that Dart flies with 1.5km/s or even more... Ridiculous isn't it?
@@mr_confuse
APFSDS, Armor Piercing Fin Stabilized Discarding Sabot. I don't think that's APFSDS though, the projectile is too large and I didn't see a sabot. I could be wrong, of course, but usually the flechettes are quite small.
@@The_Crimson_Fucker I think you are rigth that maybe is a HEATFS but I doubt it my best guess is it was a APHEFS because of the size of the projectile it most likealy has a lot of explosive mass in It, and the tip of the shell is very pointy regular HE shots are not always compromised with that aspect.
Edit:wording
this is how my eyes work when a hot girl walks past me on the sidewalk.
Hahaha 🤣
40 years ago, the women of Mexico were still wearing dresses. I was fascinated.
I parked my butt on the steps of a cathedral to watch the beautiful ladies walk by.
Truth be told, if I watched one for more than a second or two, I missed several other beauties go by.
It was wonderful.
All gone now.
Lol😅😂🤣
Now everything makes sense!
The ping pong ball tracking was pretty cool lol
Love it merci
Amazing
You know, I used to believe that a tracker was put on the projectile and the camera had an amazing motor that allowed it to follow the projectile as it moved
kempmt1 Lel XD
some camera operator throwing out their shoulder to film it
That's as cool as the rail gun its self!
@2:02 that looks to me like the projectile is breaking the sound barrier at that moment. Pretty cool.
No that is just compressed air because of the speed of the projectile. It broke the sound barrier even before it left the barrel.
Actually, this footage was brought to you by The Slow Mo Guys.
Awesome
damn this is genius!!
No camera or mirror is fast enough to catch me sneaking the last biscuits from the jar!
BISCUITS? ... Biscuits? ... from a jar?
Biscuits aren't kept in a jar;)
@@FOH3663 jary biscuits.......the beeest a maan caan geeet!
@@FOH3663 its a European thing i think...
@@bernard6413 Respect.
@@bernard6413 their american cookies right?
Thanks a lot
Last time I was this early, the high speed mirror cam couldn't track me down, before I hit the like button.