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Homemade Supersonic Trebuchet

This topic can be found at:
https://sigforum.com/eve/forums/a/tpc/f/320601935/m/1560052784

December 02, 2021, 03:39 PM
Patrick-SP2022
Homemade Supersonic Trebuchet
I came across this from a link a colleague had found.
Impressive as can be.

quote from article:
quote:
Have you ever sat down and thought “I wonder if a trebuchet could launch a projectile at supersonic speeds?” Neither have we. That’s what separates [David Eade] from the rest of us. He didn’t just ask the question, he answered it! And he documented the entire build in a YouTube video which you can see below the break.


Link to article:
https://hackaday.com/2021/12/0...upersonic-trebuchet/

Skip to about 9:14 in the video to see it in action.






December 02, 2021, 03:55 PM
RichardC
That was cool, thanks for posting!

It'll be ready for prime time when he builds a big boy for Mach 1 punkin chunkin.'
December 02, 2021, 05:18 PM
sigmonkey
Let's toss stuff into orbit...


("... times 3 to the 17th power, carry the 9, add two bananas...")




"the meaning of life, is to give life meaning" ✡ Ani Yehudi אני יהודי Le'olam lo shuv לעולם לא עוד
December 02, 2021, 05:27 PM
r0gue
I hope he really understands the engineering on that frame. He's downrange of the projectile, and inches from a highly loaded structure. His comments seemed to indicate he understood the risk. hehe Yikes if that thing imploded with him by it.
December 02, 2021, 05:39 PM
alreadydead
I hope that guy becomes one of our weapon engineers. Much respect.


__________________________
Keep your rotor in the green
The aircraft in trim
Your time over target short
Make it count
December 03, 2021, 08:12 AM
blueye
Very cool.
December 03, 2021, 08:35 AM
smlsig
Very impressive!


------------------
Eddie

Our Founding Fathers were men who understood that the right thing is not necessarily the written thing. -kkina
December 03, 2021, 08:46 AM
redstone
Hearing that sonic boom was cool.



This business will get out of control. It will get out of control and we'll be lucky to live through it. -Rear Admiral (Lower Half) Joshua Painter Played by Senator Fred Thompson
December 03, 2021, 09:15 AM
stickman428
That was fascinating! What a build! That sound it makes when it launches is pretty darn cool. With a bit more fabrication work it shouldn’t be too hard to attach an electric crank similar to those things on boat trailers to speed up the rate of fire. I wonder if you built one out of steel and used garage door springs or something like that if you could up the payload considerably? That was a neat project and a fantastic video.

If only the Hong Kong protestors had access to a few dozen supersonic trebuchets. Big Grin


My girlfriend in high school had a class project where they had to build a trebuchet and then the class all got to launch them. She hated it but I thought it was one of the best projects ever. It was certainly the most memorable.


~~~~~~~~~~~~~~~~~~~

The price of liberty and even of common humanity is eternal vigilance
December 03, 2021, 11:10 AM
Il Cattivo
quote:
If only the Hong Kong protestors had access to a few dozen supersonic trebuchets.

Weld together a light frame, add bicycle tires, and you could appear, disappear and reappear all over the city.
December 03, 2021, 11:10 AM
old dino
Amazing ... ! Loved the math, build and demonstration.

Reminded me of the movie, "Good Will Hunting".