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 Steel/Aluminum Jetpack

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Hiram Fett


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Re: Steel/Aluminum Jetpack
« Reply #15 on: Nov 26, 2008, 11:01 PM »
Right now it's just coming in at around 2lbs.  I'd say not more than 5-8 by the time the NO2 system is installed.
Going to the rod run Fri - Sun I'll get that nox info ..................... put this up for you  so no one freaks out .      info Nitrous oxide, commonly known as "laughing gas", is a chemical compound with the chemical formula N2O. At room temperature, it is a colorless non-flammable gas, with a pleasant, slightly sweet odor and taste. It is used in surgery and dentistry for its anesthetic and analgesic effects. It is known as "laughing gas" due to the euphoric effects of inhaling it, a property that has led to its recreational use as an inhalant drug. It is also used in motor racing as an oxidizer to increase the power output of engines........Nitrous oxide can be used as an oxidizer in a rocket motor. This has the advantages over other oxidizers that it is non-toxic and, due to its stability at room temperature, easy to store and relatively safe to carry on a flight. As a secondary benefit it can be readily decomposed to form breathing air. Its high density and low storage pressure enable it to be highly competitive with stored high-pressure gas systems.

In a 1914 patent, American rocket pioneer Robert Goddard suggested nitrous oxide and gasoline as possible propellants for a liquid-fueled rocket. Nitrous oxide has been the oxidizer of choice in several hybrid rocket designs (using solid fuel with a liquid or gaseous oxidizer). The combination of nitrous oxide with hydroxyl-terminated polybutadiene fuel has been used by SpaceShipOne and others. It is also notably used in amateur and high power rocketry with various plastics as the fuel. An episode of MythBusters featured a hybrid rocket built using a paraffin/powdered carbon mixture as its solid fuel and nitrous oxide as its oxidizer.

Nitrous oxide can also be used in a monopropellant rocket. In the presence of a heated catalyst, N2O will decompose exothermically into nitrogen and oxygen, at a temperature of approximately 1300 C. Because of the large heat release the catalytic action rapidly becomes secondary as thermal autodecomposition becomes dominant. In a vacuum thruster, this can provide a monopropellant specific impulse (Isp) of as much as 180s. While noticeably less than the Isp available from hydrazine thrusters (monopropellant or bipropellant with nitrogen tetroxide), the decreased toxicity makes nitrous oxide an option worth investigating. Because of its release of very high temperature oxygen as a monopropellant the addition of even small amounts of a fuel such as hydrogen rapidly increases the specific impulse and the high oxygen temperatures simplify ignition of the fuel. Isp greater than 340 seconds can be readily achieved. Its low freezing point also eases thermal management as compared to hydrazine -- a valuable property on a spacecraft which may contain quantities of cryogenic propellant.

« Last Edit: Nov 26, 2008, 11:45 PM by (Hiram Fett) » Logged
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Rotan


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Re: Steel/Aluminum Jetpack
« Reply #16 on: Nov 26, 2008, 11:16 PM »
your puting nitrous oxide in your jetpack???

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Apollo Falco


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Re: Steel/Aluminum Jetpack
« Reply #17 on: Nov 26, 2008, 11:49 PM »
the NO2 can be shot out of the thrusters to make the jetpack look functional

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Hiram Fett


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Re: Steel/Aluminum Jetpack
« Reply #18 on: Nov 26, 2008, 11:56 PM »
the NO2 can be shot out of the thrusters to make the jetpack look functional
Bingo ! Your so smart .  ;D

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Rotan


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Re: Steel/Aluminum Jetpack
« Reply #19 on: Nov 26, 2008, 11:56 PM »
i knew that just didnt think any one would acualy do it

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Mandalore the Uniter


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Re: Steel/Aluminum Jetpack
« Reply #20 on: Nov 27, 2008, 08:18 AM »
Origionally the design was for CO2, but due to some hazards like condensation, static charge, and oxygen displacement...it didn't seem like as good a choice as Nox.

I've seen people who have put dry ice in their packs to make little puffs of smoke come out of the thrusters...and I figured I'd take that one step further. =)

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Kebii'tra Verda


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Re: Steel/Aluminum Jetpack
« Reply #21 on: Nov 27, 2008, 08:42 AM »
Origionally the design was for CO2, but due to some hazards like condensation, static charge, and oxygen displacement...it didn't seem like as good a choice as Nox.

I've seen people who have put dry ice in their packs to make little puffs of smoke come out of the thrusters...and I figured I'd take that one step further. =)

That, and if anyone does actually stick their faces in it, the worst thing that would happen is they'll laugh at you.  :D ;D

Get it? Laughing gas?

*joke falls with a thud*

David.

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Mandalore the Uniter


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Re: Steel/Aluminum Jetpack
« Reply #22 on: Nov 27, 2008, 08:46 AM »
Thats also the reason why my helmet is going to have a gasket on the bottom...so I don't start laughing after I fire the thing off. =)

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Hiram Fett


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Re: Steel/Aluminum Jetpack
« Reply #23 on: Nov 27, 2008, 12:27 PM »
That, and if anyone does actually stick their faces in it, the worst thing that would happen is they'll laugh at you.  :D ;D

Get it? Laughing gas?

*joke falls with a thud*

David.
we DONT need gas to laugh at Tom ! HEHEHEHEHEHEHE !

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Biohazard


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Re: Steel/Aluminum Jetpack
« Reply #24 on: Nov 29, 2008, 10:22 PM »
Ya know Tom... still not convinced nitrous is the best route.

Maybe compressed air mixed with some other... tame.... product might yield better results all around?


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Mandalore the Uniter


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Re: Steel/Aluminum Jetpack
« Reply #25 on: Nov 29, 2008, 11:01 PM »
There is no way to mix gasses like that in a compressed form.  It's gonna be either CO2 or N2O, and N2O is for the most part inert in open spaces.  This isn't something that will be used indoors except at costume contests, I don't want everyone getting high off a burst. =D  Besides, you have to be in a very enclosed space for that to happen as this stuff dissipates very quickly in open air.

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Biohazard


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Re: Steel/Aluminum Jetpack
« Reply #26 on: Nov 29, 2008, 11:22 PM »
Well, true. But when I said "Mixed" I mean more of.... to get that "smoky" look to it.

Remember the guy at Dcon... the one in the brown cloak with the bull skull, etc..... his was simple compressed air I do believe... and it has that smoky look on its own because of the pressurized nature of it.

Would be cheaper to compress the air at the gas station versus having to buy nitrous. *shrug*

Not saying the nitrous is a bad idea... just might be a little more complicated than it would need to be?

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Mandalore the Uniter


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Re: Steel/Aluminum Jetpack
« Reply #27 on: Nov 30, 2008, 09:01 AM »
I'm not going for the smoky look though...I'm going for actual jets that make noise.  Nitrous is fairly cheap to refill actually, of course not as cheap as air...but the cost isn't enough to deter it from happening.  The system itself consists of a Y hose and a powered purge jet...can't get much simpler than that. =)

There is no such thing as to complicated as long as the cost versus practicality deems it worth making.  If I can imagine it, I can build it with my hands.

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Biohazard


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Re: Steel/Aluminum Jetpack
« Reply #28 on: Nov 30, 2008, 11:36 AM »
So it's just going to make noise? :-\ No flashy stuff?

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Kebii'tra Verda


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Re: Steel/Aluminum Jetpack
« Reply #29 on: Nov 30, 2008, 12:48 PM »
Yeah! You could put red and orange LED's inside the jets that come on when you activate the NOX. That'd be a cool lighting effect, especially at night.

David.

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#0127a Kebii'tra Verda
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