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Author Topic: Jetpack (pressure water hose in a backpack)  (Read 1952 times)

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Dartful Dodger

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Jetpack (pressure water hose in a backpack)
« on: February 10, 2009, 11:54:15 am »
JETLEV-FLYER

I'm surprised that none of you thought of this.

Now that someone else thought of this, it's up to yous guys to figure out the best way to build our own.

Unlike the people that made this, I doesn't have to be a safe flight-enjoyment.

Just design it to be cheap and easy to build.

drventure

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Re: Jetpack (pressure water hose in a backpack)
« Reply #1 on: February 10, 2009, 12:27:07 pm »
Oh man, oh man..

One day.

drventure

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Re: Jetpack (pressure water hose in a backpack)
« Reply #2 on: February 10, 2009, 02:19:37 pm »
Well, realistically speaking, any of those one man watersports gizmos will get old quickly. Just look how many jetskis go up on Craigslist at the end of the summer.

I'd imagine this would be much more suited to a rental scenario, but then, talk about liability. Yikes!

shardian

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Re: Jetpack (pressure water hose in a backpack)
« Reply #3 on: February 10, 2009, 02:30:36 pm »
Well I'll be damned. I suppose they hooked a 500 gallon or so fire pump up to a marine engine, then strapped 2 250 gallon outlets to their back. I would bet money there have been more than a few redneck volunteer fire fighters try this in the states over the years.

It's one of those ideas that many people think of, but think that since educated scientists didn't come up with it, then it must be a dumb idea.

shardian

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Re: Jetpack (pressure water hose in a backpack)
« Reply #4 on: February 10, 2009, 02:47:47 pm »
I don't know about you, but I don't want Mr. Winky "out 'n about" anywhere near those outlets!!!

Dartful Dodger

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Re: Jetpack (pressure water hose in a backpack)
« Reply #5 on: February 10, 2009, 02:54:55 pm »
Well, given that there's no cargo bar to drag around women in bikinis on this thing, it seems like it'd get old after about 10 minutes unless you're into no-reward attention whoring. 

Cool, but I like the idea of the kite-rafts that you drag behind boats better.



In the video it didn't look like a boat with a pressure washer was chasing it, it looked like the motor for the pump was in an unmanned raft that the rider was pulling.  If that were the case, then you could potentially modify the raft to allow a passenger, cooler or both.

ark_ader

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Re: Jetpack (pressure water hose in a backpack)
« Reply #6 on: February 10, 2009, 05:28:31 pm »
Well, given that there's no cargo bar to drag around women in bikinis on this thing, it seems like it'd get old after about 10 minutes unless you're into no-reward attention whoring. 

Cool, but I like the idea of the kite-rafts that you drag behind boats better.



In the video it didn't look like a boat with a pressure washer was chasing it, it looked like the motor for the pump was in an unmanned raft that the rider was pulling.  If that were the case, then you could potentially modify the raft to allow a passenger, cooler or both.

An inverted Seadoo pumping water in the hose instead of jetting out the back.

What of the sealife where these jets start powering up?
What happens if a gust of wind pushes over the occupant?
Does this work underwater?

If so you can get to find out if that Casio watch does shatter at 100m...
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Ummon

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Re: Jetpack (pressure water hose in a backpack)
« Reply #7 on: February 10, 2009, 11:09:37 pm »
Um. wow. Next.
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"Theoretical physics has been the most successful and cost-effective in all of science."

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People often confuse expressed observations with complaint, ridicule, or - even worse - self-pity.

SavannahLion

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Re: Jetpack (pressure water hose in a backpack)
« Reply #8 on: February 11, 2009, 02:18:59 am »
It's one of those ideas that many people think of, but think that since educated scientists didn't come up with it, then it must be a dumb idea.

When you force water to take a U-Turn under high pressures, it generates some pretty weird physics. In any case, the first thing this reminded me of is the toy at the start Titan AE.

orion

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Re: Jetpack (pressure water hose in a backpack)
« Reply #9 on: February 11, 2009, 04:41:33 pm »
I can honestly say no I have never thought of that. When I was a child I did however think of the idea of making my own parachute out of a sheet, a life preserver and some rope.... didn't quite work the way I intended when I took that flying leap off the roof of my friends garage  :dizzy:

shardian

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Re: Jetpack (pressure water hose in a backpack)
« Reply #10 on: February 11, 2009, 04:53:28 pm »
I can honestly say no I have never thought of that. When I was a child I did however think of the idea of making my own parachute out of a sheet, a life preserver and some rope.... didn't quite work the way I intended when I took that flying leap off the roof of my friends garage  :dizzy:


A patio umbrella would have worked better...dumbass!  ;)

Kevin Mullins

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Re: Jetpack (pressure water hose in a backpack)
« Reply #11 on: February 11, 2009, 07:06:30 pm »
I can fly anyways ... so this all really seems pointless.   
Not a technician . . . . just a DIY'er.

orion

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Re: Jetpack (pressure water hose in a backpack)
« Reply #12 on: February 11, 2009, 07:06:53 pm »
I can honestly say no I have never thought of that. When I was a child I did however think of the idea of making my own parachute out of a sheet, a life preserver and some rope.... didn't quite work the way I intended when I took that flying leap off the roof of my friends garage  :dizzy:


A patio umbrella would have worked better...dumbass!  ;)

I was nine and besides that wouldn't have looked as cool :P

Ummon

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Re: Jetpack (pressure water hose in a backpack)
« Reply #13 on: February 13, 2009, 09:52:32 pm »
I can honestly say no I have never thought of that. When I was a child I did however think of the idea of making my own parachute out of a sheet, a life preserver and some rope.... didn't quite work the way I intended when I took that flying leap off the roof of my friends garage  :dizzy:


A patio umbrella would have worked better...dumbass!  ;)

I was nine and besides that wouldn't have looked as cool :P

It might've looked cooler, all English high-brow you know.
Yo. Chocolate.


"Theoretical physics has been the most successful and cost-effective in all of science."

Stephen Hawking


People often confuse expressed observations with complaint, ridicule, or - even worse - self-pity.