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/sci/ - Science & Math

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3126099 No.3126099 [Reply] [Original]

How would one go about making a homemade jetpack?
It doesn't have to last a considerable length of time, so rockets or fireworks could be used.
>Let's just disregard personal safety for now.

>> No.3126497

>>3126099

There was a guy on youtube making videos of homemade jetpack... can't seem to find it though.

>> No.3126536

>>3126497

http://www.youtube.com/user/njrocketbelt#p/a/u/1/GRbx8lAniMY

Nevermind, found it.

Seems like you'd need some powerful propellent in a tank (or two) under some serious pressure... with some nozzles that you can control with a joystick.

You'd need some stabilization software onboard.

You'll only be able to fly for a couple of minutes at best with what's available today.

>> No.3126544

I just love carrying gallons of liquid on my back.

>> No.3126558

>>3126099 so rockets or fireworks

>dat uncontrollable burn.jpg

>> No.3126564

>>3126544

Gasses not liquids.

>> No.3126589

>>3126536

Wow, that thing is shit.

>> No.3126600

>>3126564

Wasn't talking about his shitty 'jet'pack

To fly you need thrust, for thrust you need mass, liquid is massier than a gas, to fly a long time you need a lot of liquid. This was implied.

>> No.3126602

Either buy one of the many options for personal flight, or get yourself killed painfully. Your choice, OP.

>> No.3126610

>>3126099

Also, rockets are a terrible idea... just terrible.

http://www.youtube.com/user/dakka951#p/a/u/0/H1sGfaHFHIo

Here's a better video of actual flight by some Australians.

>> No.3126625

>>3126600

...what?

>> No.3126657

>>3126625

Jetpacks are stupid.

>> No.3126669
File: 33 KB, 302x300, your_opinion[1].jpg [View same] [iqdb] [saucenao] [google]
3126669

>>3126657

Okay.