Wednesday, February 13, 2008

Nice railgun test




"In February 2008 the US Navy tested a magnetic railgun; it fired a shell at 5,600 miles per hour using 10 megajoules of energy. Its expected performance is over 13,000 miles per hour muzzle velocity, accurate enough to hit a 5 meter target from 200 nautical miles away while shooting at 10 shots per minute. It is expected to be ready in 2020 to 2025."

The best parts of these images are the burning metal, and the shock wave clearly visible way way out in front of the projectile.

4 comments:

Capcom said...

Very nice shots! Seeing the shock wave is special. Also nice to see this concept making ANY headway.

BTW-OT, did you watch Lost last night? If you did, specifically the part about the timed missile on the ship homing in on the equipment set up on the island. Is this set-up for real, or just various Hollywood metal props?:
http://losteastereggs.blogspot.com/2008/02/couple-of-new-abc-promo-photos.html

We're trying to understand what the time lapse is measuring, but I'm curious also if the equipment is even remotely authentic, or just a small audio speaker set from Radio Shack. :-) I thought that you or your rocketry comrades might know. Thanks!

thimscool said...

Awesome photos. That's a hella lot of kinetic energy.

They should scale it up and use one to start sending supplies into orbit.

I wonder if JDAM type guidance system electronics and actuators could survive the acceleration in tact.

thimscool said...

Imagine what it would be like to be on the receiving end of ten of these things per minute...

Of course, you need a pretty significant reactor on board your ship to make this work... 2MW per turret, on average.

Current aircraft carriers use nuclear reactors capable of delivering a few hundred megawatts... add one more of those babies and you would be able to engage a hundred separate targets anywhere within a 200 mile radius, or focus them into a staccato barrage of incredible fury.

Holy crap.

Truefaith1963 said...

One word

WOW!

Nice to meet you btw