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Build Your Own Jet Engine

michael posted more than 10 years ago | from the burning-down-the-house dept.

Toys 148

jgarland79 writes "Have you ever wanted your very own jet engine? Build one at home in your own garage. The guys over at www.garagejet.com have done just that. Their jet engine is made from an automotive turbo, spark plugs, and some scrap metal. I have made a mirror site here." We've had a couple of previous stories about a guy building pulsejet engines - the type of engine described above is a turbojet.

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148 comments

Gloryholes!! (-1, Troll)

Anonymous Coward | more than 10 years ago | (#9090922)

See subject.

Darwin Award in the making (5, Funny)

cheinz (714431) | more than 10 years ago | (#9090923)

'Nuff said! ;)

In Soviet Russia... (1)

I'm not a script, da (638454) | more than 10 years ago | (#9090988)

...darwin award makes you!

Re:Darwin Award in the making (1)

The-Dalai-LLama (755919) | more than 10 years ago | (#9091008)

This comment [slashdot.org] would have worked better as a reply to yours, except that yours didn't show up until after I got mine posted. At least I'm not the only one thinking along these lines.

The Dalai LLama
...damn, I hate that...

Re:Darwin Award in the making (1)

Pidder (736678) | more than 10 years ago | (#9091049)

Yes I completely agree.

People of Slashdot: I strongly advice against watching The Rocketeer [imdb.com] in the near future.

Re:Darwin Award in the making (1)

linzeal (197905) | more than 10 years ago | (#9091354)

Finnaly popcorn the way mother used to make it.

Re:Darwin Award in the making (1)

bleckywelcky (518520) | more than 10 years ago | (#9091799)

You know the funny thing, they sell Instruction Kits on their website! If you need instructions, then you have no business trying to build something like this :P

Yeah... not tough. (0)

enderanjin (753760) | more than 10 years ago | (#9090925)

I build one of those once. It was a blast until the FBI got to me.

Re:Yeah... not tough. (5, Funny)

The-Dalai-LLama (755919) | more than 10 years ago | (#9090979)

The FBI were right to go after you.

I had a friend who knew this guy one time and his sister's cousin built a jet engine just like the one in the article and bolted it to the top of this old Nova that he had. He took it for a test run in the desert in, like, Arizona. He forgot that his normal brakes wouldn't be enough to stop it, and the accident investigators found the remains of the jet engine 80 feet up the side of a mesa.

Dude, his teeth were still embedded in the melted steering wheel. That's how they identified him. Don't mess with home-brewed jet propulsion, it's a recipe for trouble. You could put someone's eye out.

The Dalai LLama
...true story, I swear...

Re:Yeah... not tough. (1)

idesofmarch (730937) | more than 10 years ago | (#9091065)

Let me get this straight - you had a friend, who had a sister, who had a cousin. . .

Re:Yeah... not tough. (0)

Anonymous Coward | more than 10 years ago | (#9091120)

No, he had a friend who knew a guy. And the guy had a sister, whose cousin built an engine. Which would at first seem strange since the sister's cousin would normally be the brother's (that's the guy) cousin as well, but it's possible they were adoptive siblings. The sister must have contacted her biological relatives somehow, and learned of the unfortunate death of her long lost cousin through jet propulsion.

Re:Yeah... not tough. (1)

simcop2387 (703011) | more than 10 years ago | (#9091161)

well thats nothing i've got a sister that has a brother! how odd is that?

Re:Yeah... not tough. (1)

kpwoodr (306527) | more than 10 years ago | (#9091378)

>well thats nothing i've got a sister that has a brother! how odd is that?

It's YOU isn't it!!!! That's the first riddle I've gotten all week.

Here's another tough one. "What does a little ocean say when it grows up?" This showed up on My friend's sister's cousin's 5th grade homework...I'm clueless.

Re:Yeah... not tough. (1)

Resident Netizen (769536) | more than 10 years ago | (#9091566)

Presumably... Nothing. It just waves.

Re:Yeah... not tough. (0)

Anonymous Coward | more than 10 years ago | (#9091138)

That was an episode of Mythbusters.. guess what.. they proved it was a myth

Re:Yeah... not tough. (0)

Anonymous Coward | more than 10 years ago | (#9091230)

Really? How do you prove that something didn't happen?

Re:Yeah... not tough. (0)

Anonymous Coward | more than 10 years ago | (#9091245)

They replicated the myth.. the engine used in the myth is not powerful enough to lift a 1967 cadillac (or whatever it was) and fly it into the face of a mountain

Re:Yeah... not tough. (3, Funny)

pyrrhonist (701154) | more than 10 years ago | (#9091257)

I had a friend who knew this guy one time

In the Bibical sense?

and his sister's cousin

Wouldn't it just be easier to say, "his cousin"?

Re:Yeah... not tough. (2, Informative)

kpwoodr (306527) | more than 10 years ago | (#9091277)

No I can't speak for everyone, but I'm going to go out on a limb and say that most of us saw what you're refering to on Myth Busters [discovery.com] . And though it was cool...no one ended up 80 feet high on the side of a Mesa. And on top of that it was a JATO, which probably produces a lot more thrust than the home brew garage jet.

And yes, I knew you were joking, I just wanted to get my shot in!

Re:Yeah... not tough. (0)

Anonymous Coward | more than 10 years ago | (#9091357)

http://www.darwinawards.com/darwin/darwin1995-04.h tml

Re:Yeah... not tough. (0)

Anonymous Coward | more than 10 years ago | (#9091495)

http://www.wired.com/wired/archive/8.08/rocketcar. html?pg=1&topic=&topic_set=

Ring a bell???

Oh great, (4, Funny)

demonbug (309515) | more than 10 years ago | (#9090928)

Now I'm going to have to start worrying about real rice rockets on the way home from work.

Re:Oh great, (0, Troll)

icekillis (777986) | more than 10 years ago | (#9091238)

On other unrelated news. Al Qaida recruiters, who are in need for Skilled Engineers who dislike the American government and big American corporations have turned to Slashdot as a primary source for recruits.

now i can... (2, Funny)

hellmarch (721948) | more than 10 years ago | (#9090931)

attempt to win the x prize. w00t

Re:now i can... (2, Informative)

Anonymous Coward | more than 10 years ago | (#9090977)

now i can... attempt to win the x prize
Yes, you can attempt, but unfortunately you're going to fail....

Both jet and rocket engines combine fuel with an oxidizer to make thrust. Jet engines, however, use oxygen from the air while rocket engines use another source of oxygen (liquid, compressed, or solid in some compound that'd burned to produce O2).

The upshot is that you can't use a jet engine to get into outer space, only a rocket engine, because there's not oxygen up there for a jet engine to burn enough fuel to make enough thrust. Your jet engine will come crashing down.

(A simplified explanation of the difference between jet and rocket engines can be found here [aerospaceweb.org] .)

Re:now i can... (4, Insightful)

penguinoid (724646) | more than 10 years ago | (#9091060)

The upshot is that you can't use a jet engine to get into outer space, only a rocket engine, because there's not oxygen up there for a jet engine to burn enough fuel to make enough thrust.

Wrong! You *can* use a jet engine to go into space. You just need to accelerate to 11,000 km/h, the escape velocity (lower if you are at higher altitude, or just want to go into orbit). You can even go into space with a (really big) cannon.

Your jet engine will come crashing down.

And if you do reach space, you will be wishing that you did come crashing down.

Mission control. We have ignition. (-1, Offtopic)

Anonymous Coward | more than 10 years ago | (#9090935)

Were's the bean powered one?

Excellent! (5, Funny)

AndroidCat (229562) | more than 10 years ago | (#9090941)

Combined with the Slashdot articles on Build Your Own Cruise Missle [slashdot.org] , I'm good to go!

Re:Excellent! (5, Funny)

slickwillie (34689) | more than 10 years ago | (#9091022)

Let's see. Aurora-type cruise missile, homemade rail gun, webcam, and 802.11g with high power antenna. I think we've got something here.

DId I leave anything out?

Re:Excellent! (1, Funny)

drinkypoo (153816) | more than 10 years ago | (#9091147)

5. Cowboyneal
6. ???
7. Profit, etc.

Re:Excellent! (0)

Anonymous Coward | more than 10 years ago | (#9091233)

The will to use it against those that deserve it?

Re:Excellent! (1)

jafiwam (310805) | more than 10 years ago | (#9091418)

#4. Profit!

Re:Excellent! (3, Funny)

AndroidCat (229562) | more than 10 years ago | (#9091837)

Combine it with the Wireless Beer Pitcher Monitoring System and Pizza ordering, and you've got a system that would make the Deliverator (Snow Crash) look pretty tame.

Re:Excellent! (1)

fjordboy (169716) | more than 10 years ago | (#9091365)

I'm reminded of the fellow that came up with star wars asciimation [asciimation.co.nz] ....who also built a jet powered beer cooling device. [asciimation.co.nz] The intro speaks for itself: "What follows is my story about a shed, a warm beer and a home made jet engine."

Mirror Site?!?!?! (4, Funny)

graveyardduckx (735761) | more than 10 years ago | (#9090947)

Two slashdottings for the price of one!

Mayday! Mayday! (0, Offtopic)

weeboo0104 (644849) | more than 10 years ago | (#9090949)

Both websites appear to have "flamed out".

Another one... (5, Interesting)

simcop2387 (703011) | more than 10 years ago | (#9090950)

Another site that shows you some of the steps in building a gas turbine engine (also known as a jet engine) this one uses a turbo charge, probably not quite as good though

http://asciimation.co.nz/turbine/

he also uses it to cool beer.

http://asciimation.co.nz/beer/

an excerpt (1)

DrLZRDMN (728996) | more than 10 years ago | (#9090958)

Please help with bandwidth! Please right click on the links, and choose save target as. These videos are in real audio format. If you do not have real player you can get it for free HERE [real.com]

I don't see how that would help but I bet it goes down faster thatn a crashing jet airplain.

Re:an excerpt (1)

penguinoid (724646) | more than 10 years ago | (#9091089)

Please help with bandwidth! Please right click on the links, and choose save target as. These videos are in real audio format. If you do not have real player you can get it for free HERE [real.com]

I don't see how that would help but I bet it goes down faster thatn a crashing jet airplain.


I don't see how that would help but I bet your Karma goes down even faster.

Re:an excerpt (1)

DrLZRDMN (728996) | more than 10 years ago | (#9091131)

I dont see how that helps because with a new topic coming this one is going down faster than my karma

Other homebuilt gas turbines (5, Informative)

airbatica (743048) | more than 10 years ago | (#9090963)

These guys are amateurs compared to Mark Nye of Nye Thermodynamics. I realize the page is a little old, but homebuilt gas turbines aren't exactly high tech till you get up to the FADEC systems of commercial jetliners

http://www.nyethermodynamics.com/

Off topic: Ooo... lets slashdot the server to oblivion. It's got MOVIES!

Re:Other homebuilt gas turbines (1)

gardyloo (512791) | more than 10 years ago | (#9091415)

Haha. Yeah, and the one he built to melt snow off of driveways is way too heavy and dangerous to use without bolting it to something heavy.
"Honey, seen any snow yet?"
"No, not yet." ...
"OK, dear, it's snowing."
"Yay!"

*click.... click*
*WHOO000SH!*
"AIIIIIEEEEEEEEEeeeeeeeee...........!"

turbojet and turboprop homebuilt engines (5, Interesting)

Anonymous Coward | more than 10 years ago | (#9090964)

If you like small engines, take a look at 5bears.com [5bears.com] -- he's made a turbojet (centrifugal compressor and turbine) and a turboprop, complete with microcontroller-based starter/fuel system, in addition to a couple of radial engines, a CNC mill, and a homebuilt spotwelder.

Re:turbojet and turboprop homebuilt engines (2, Funny)

AndroidCat (229562) | more than 10 years ago | (#9090994)

All that in one project? What's he building, an SCV?

Re:turbojet and turboprop homebuilt engines (0)

Anonymous Coward | more than 10 years ago | (#9091064)

He has a severe case of build-it-yourself-itis (and no, they're multiple projects. He designed and built the spotwelder to help in the construction of the turbojet, which justified him learning how to program microcontrollers for the FADEC, and so forth.)

I admire him immensely.

Re:turbojet and turboprop homebuilt engines (4, Interesting)

Temple 23 (778014) | more than 10 years ago | (#9091076)

If you want to see some really tiny engines, check out this site: http://cpl.usc.edu/eschuste/ Speciffically, http://cpl.usc.edu/eschuste/turbine.htm I worked with this guy while doing research at USC in combustion physics. Taking models out into the engineering quad and taxing them around was entertaining (despite the small size, these things are quite loud).

wow (1)

demonbug (309515) | more than 10 years ago | (#9090971)

I bet you could move a shopping cart at greater than 3 ft/min with that thing.

Fact: *BSD is dying (-1, Troll)

Anonymous Coward | more than 10 years ago | (#9090980)

There is one thing we have to remember: *BSD is dying. Due to the troubles of Walnut Creek, abysmal sales and so on, FreeBSD went out of business and was taken over by BSDI who sold another troubled OS. Now BSDI too is out of business, and its corpse turned over to yet another charnel house.

All major surveys show that *BSD has steadily declined in market share. *BSD is very sick and its long term survival prospects are very dim. If *BSD is to survive at all it will be among OS hobbyists, dabblers, and dilettantes. *BSD continues to decay, and nothing short of a miracle could save it at this point in time; for all practical purposes, *BSD is dead.

Well.. (0, Troll)

mrsev (664367) | more than 10 years ago | (#9090984)

They are going to die! The only good point is that it will be quick!

Erm (0)

Anonymous Coward | more than 10 years ago | (#9090989)

This server looks like it's begging for a slashdotting. Unfortunately, about 2 or 3 of us will be downloading the 5 or 6 .RM files hosted.

No proprietary crap here (1)

GlassUser (190787) | more than 10 years ago | (#9090991)

Anyone have the videos in a standard format?

Re:No proprietary crap here (3, Funny)

IamGarageGuy 2 (687655) | more than 10 years ago | (#9091071)

I'm with you. I don't want to have to put real crap on a machine unless absolutely necessary, e.g. bomb threat, man with gun, summons from SCO...

Re:No proprietary crap here (2, Informative)

Resident Netizen (769536) | more than 10 years ago | (#9091242)

No problem- get Real Alternative.

Re:No proprietary crap here (1)

GlassUser (190787) | more than 10 years ago | (#9091684)

If your particular system happens to be blessed with it. There's a reason for standards.

Erm (0)

Anonymous Coward | more than 10 years ago | (#9091001)

Great article, except for the fact that I can turbo my car for a little bit more than what they ask for on their site. I think it's a bit funny that they proclaim DONT DO THIS but proceed to sell kits for them, too.

Have you ever wanted your very own jet engine? (0)

Anonymous Coward | more than 10 years ago | (#9091006)

Have you ever wanted your very own jet engine?

No.

Next question...

Inexpensive (3, Interesting)

acceber (777067) | more than 10 years ago | (#9091007)

A real jet engine, say the one used on a F-16, runs around the figure of $350,000 USD...Finding used parts at the junk yard will yield much less cost. A complete engine can typically be built for less than $300 USD.
It's interesting how price isn't an obstacle when it comes to building your own jet engine. The average person may think that it's impossible but these guys have proven that you don't need high tech equipment, just a couple of basic tools to be able to build something so out of the ordinary.
This would definitely be a source of inspiration for those budding innovators and inventors.

Re:Inexpensive (3, Insightful)

DerekLyons (302214) | more than 10 years ago | (#9091559)

It's interesting how price isn't an obstacle when it comes to building your own jet engine. The average person may think that it's impossible but these guys have proven that you don't need high tech equipment, just a couple of basic tools to be able to build something so out of the ordinary.
These guys haven't proven that you can build your own jet engine, they've proven you can modify a turbosupercharger into a gas turbine. The Really Hard Part is the turbines, which they *bought*, as opposed to being made.

It's cool, it's semi impressive, but it's not what it's hyped to be.

Re:Inexpensive (1)

Resident Netizen (769536) | more than 10 years ago | (#9091578)

Good God! *They* didn't prove it, Frank Whittle did in the 40's!

Frozen Chickens (1)

secondsun (195377) | more than 10 years ago | (#9091018)

Do they use the frozen chicken launcher test method or do they use more historical (but less modern) live chicken?

Re:Frozen Chickens (2, Funny)

DigiShaman (671371) | more than 10 years ago | (#9091126)

Will little frozen chicken McNuggets work? That turbo is rather small to swallow a big bird.

Re:Frozen Chickens (1)

Resident Netizen (769536) | more than 10 years ago | (#9091539)

Actually, the chicken launcher launches *thawed* chickens at something like 200mph. IIRC it was developed first to test canopies and windscreens- jets came later. Rolls Royce borrowed it from the US, but didn't know about the thawing step... resulting in a 'famous' anecdote in the annals of jet turbine development history. Can anyone substantiate this story? I asked a RR blade engineer if it was true- he said yes, but even so, the story is hard to believe.

Re:Frozen Chickens (1)

ShadowBlasko (597519) | more than 10 years ago | (#9091773)

Dunno about RR and frozen chickens, But back in the 70's my Grandfather was part of a crew at GE Aircraft Engines in Cincinnati who would go up into the cooling towers in the old 800 building and collect pigeons for "bird tests".

They used CO2 extinguishers to get em down fast, (confused the birds more than freezing them) and would collect dozens a week for engine FOD testing. Had to make sure none of them were actually frozen for some strange reason. (laughs)

Obviously GEAE can't do it like that anymore, but I have no reason to doubt that they did.

mis-engineering? (3, Interesting)

grepistan (758811) | more than 10 years ago | (#9091026)

I like the drill being used as an oil pump, but what happens if some bright spark hits the reverse direction button?

I hope those chaps have good home & contents insurance!

Mental note to self..... (4, Funny)

j3ll0 (777603) | more than 10 years ago | (#9091046)


When building an engine that will potentially operate at over 1000 degrees Celsius, be sure to build frame out of wood.

Re:Mental note to self..... (2, Interesting)

pipingguy (566974) | more than 10 years ago | (#9091330)


When building an engine that will potentially operate at over 1000 degrees Celsius, be sure to build frame out of wood.

The hottest stuff comes out the business end, not the support points.

Not the best setup, I admit, but I presume this is not long-term durability testing. All they need is a good insulator between contact points. Or maybe a liquid helium cooling system with lots of piping design engineering hours.

NZ government killed his Cruise Missile project... (3, Interesting)

Recoil_42 (665710) | more than 10 years ago | (#9091057)

Just a side note, the New Zealand government recently shot down bruce's $5,000 cruise missle project. read about it here. [interestingprojects.com]

Very sad, i was looking forward to its completion.

let's be safe out there (5, Informative)

jamie (78724) | more than 10 years ago | (#9091072)

Kids, if you build your own jet engine, then unlike the nice fellow in the videos, please wear ear and eye protection.

Especially if you plan on titling one of your videos "Ooops! Forgot to make sure the fittings were tight!"

Jeez...

Be safe, like this young fellow (1)

AtariAmarok (451306) | more than 10 years ago | (#9091219)

This young man [worldmall.com] has the right idea for jet engine safety.

goggles aren't enough (2, Informative)

blitz487 (606553) | more than 10 years ago | (#9091283)

You need more than "ear and eye protection". You need a cement blast wall. I toured P&W's jet engine design plant once, and the engine test facility included a heavilly fortified blockhouse for the engineers. A turbine burst would be like a grenade going off with even a small engine.

Re:let's be safe out there (1)

Megahurts (215296) | more than 10 years ago | (#9091397)

seriously, any event involving a turbocharger spinning at tens of thousands of rpm that would warrant safety glasses would probably also render them ineffecutal.

Re:let's be safe out there (1)

jred (111898) | more than 10 years ago | (#9091770)

I just had a very convincing visual of some poor fool standing there looking shocked with plastic splinters and chunks of turbine fins embedded in his eyes.

Strangely enough, it was amusing. Then again, I *do* like to read Darwin Awards :)

Morons (-1, Troll)

Anonymous Coward | more than 10 years ago | (#9091112)

Morons using realmedia format.

IDIOTS.

just what i needed! (1)

ejaw5 (570071) | more than 10 years ago | (#9091135)

More Power! for my riding lawn mower. grr grunt grr grunt grr grunt.

555 timer? (4, Informative)

kd5ujz (640580) | more than 10 years ago | (#9091172)

These guys are charging $20 for the 555 chip. These things go for around $0.90 at radio shack. At first I thought it was the entire assembly, but then I saw the assembly for $50.

Garuntee win on the strip! (3, Funny)

CherniyVolk (513591) | more than 10 years ago | (#9091174)



Let's see, super chargers are ungodly expensive....
Adding turbo or even replacing turbo, out of this world....

But! Two 300 dollar jet engines welded to the side of your Ford Escort!?!?!?!? Francine Dee! Here I come!

Turbojets, pulsejets, and... (2, Funny)

Dread_ed (260158) | more than 10 years ago | (#9091185)

"We've had a couple of previous stories about a guy building pulsejet engines - the type of engine described above is a turbojet

We just invented a new one...serverjet! That is where fire shoots out of the drive bays of a server so fast that the whole thing flies across the room!!

Sometimes I just think yall pick random servers to destroy. Kinda like that guy from the Jerk who flips through the newspaper and then just pops his finger down on a person and then he kills them. Likewise, you probably put in a topic to Google and hit "I'm feeling lucky!" Whoever the unlucky site is gets the slashdotting!

I can feel you laughing from here.

junkyard wars did this.... (3, Informative)

dvd_tude (69482) | more than 10 years ago | (#9091192)

They used an automotive turbo, etc. It was the "jet car" episode.

As I recall it didn't generate very much thrust.

(didn't RTFA)

Pod race! (3, Funny)

AtariAmarok (451306) | more than 10 years ago | (#9091193)

Once you'd built one of these, build another. Then tie a lawn chair in between, and start 'em up! Should be a real blast.

Not so much a jet engine (1)

EvilMidnightBomber (778018) | more than 10 years ago | (#9091264)

since it doesn't provide thrust or torque. Propane-powered whistle would be more like it.

Video... (0)

azav (469988) | more than 10 years ago | (#9091291)

Anyone have Non Real versions of the videos? Some MPEG 4 files maybe?

Thanks

Welding (1, Informative)

Anonymous Coward | more than 10 years ago | (#9091293)

The welds on those pipes were some of the worst I've ever seen. I'm surprised it didn't blow up!

Re:Welding (0)

Anonymous Coward | more than 10 years ago | (#9091549)

Heh. I thought you were displaying the usual snobbery of people in the know around here, but then I checked the pictures. Damn.

Re:Welding (0)

Anonymous Coward | more than 10 years ago | (#9091716)

Yeah, I think a "friend" did them.

Man, it hurts my eyes to look at those welds.

For pete's sake (2, Funny)

Tablizer (95088) | more than 10 years ago | (#9091358)

It probably started out as an attempt to improve a blow-dryer for a chronically late person.

A co-worker built one (4, Interesting)

Boyceterous (596732) | more than 10 years ago | (#9091401)

back in the mid 1980's. He was a mech engineer and used the company machine shop to fab the parts. He said it got up to about 200 lbs of thrust - until the turbine blades flew out the back end ( he used aluminum instead of titanium) - luckily he only got slightly injured.

Get us a better site (0)

Anonymous Coward | more than 10 years ago | (#9091420)

Nothing could be cooler than building your own jet engine. But this site is pretty poor, with a strange commercial edge to it.


Could we have a proper explanation of how it all fits together? Perhaps even a diagram. Does it produce any thrust?


Next

Re:Get us a better site (1)

saroth2 (718286) | more than 10 years ago | (#9091665)

It would have to produce thrust, however, it probably does not produce very much, or it would blow itself away.

Laserjet (3, Funny)

Rhodnius (749829) | more than 10 years ago | (#9091443)

Pulsejets, turbojets... what's the big deal? They invented Laserjets years ago. Can get one of those for $400 or less, and the laser just runs on electricity, doesn't need fuel...

This is great! (2, Funny)

tennistoad (778028) | more than 10 years ago | (#9091482)

Next these guys will duct tape 10,000 model rocket engines to a tin can and send it into orbit as a homemade sputnick! oh wait John carmack has got this one covered!!! http://www.armadilloaerospace.com/n.x/Armadillo/Ho me

We'll see this guy on the news soon (1)

Hardwyred (71704) | more than 10 years ago | (#9091573)

Let me sum up. Old turbo, propane tank, metal tube, power steering pump used as an oil pump driven by a hand drill, 6 inchs of flame shooting out the end of the tube and the whole thing is mounted on a couple of painted 2x4s. Tell me, which piece will fail first?

I love these homemade projects, but good lord, this one is 2 steps away from a stay in the burn ward.

Radio controlled Jets (2, Informative)

barjam (37372) | more than 10 years ago | (#9091613)

RCs have used jet engines for years. They can be had (the engine, not the RC) for about 3k. They feature computer control/startup etc.

Pretty cool stuff.

Not impressed... (1)

eelke_klein (676038) | more than 10 years ago | (#9091712)

It does seem very bulky, it would be really interesting if they could provide some spec's.

I have read an article one (in a dutch magazine about radio controlled models so I can't provide a link) about someone who build his own turbojet. All parts were home made and it actually was installed in a model that could fly! That was in the early 80's so these guys seem to be a bit behind times...

e=mc^2? (0)

Anonymous Coward | more than 10 years ago | (#9091723)

From the FAQ on the page:
After the fuel is burnt, the air becomes super hot, and expands up to 15 times its original mass.
Wow, it converts energy to mass! Amazing, where can I get one? (This should be 15 times the VOLUME not mass)

!(/. ed) ?? (1)

vinit79 (740464) | more than 10 years ago | (#9091734)

why is the original site and the mirror still up ??? /. defeated by a meanie weenie server !!! Probably they have jet propelled apache.

Re:!(/. ed) ?? (1)

jgarland79 (665188) | more than 10 years ago | (#9091956)

I think my mirror site did pretty well for half a million hits in the last 5 hours! It didn't even hiccup. :) The load average didn't exceed 1 and it didn't even touch my potential bandwidth. :) http://www.my-kungfu.com/~jgarland/webalizer/usage _200405.html [my-kungfu.com]

Cute DIY, But Been Done: See Links (4, Informative)

cmholm (69081) | more than 10 years ago | (#9091789)

First, full points to the builder for moving beyond the web research stage and getting his hands dirty. For those wanting to play with turbines, but want a design that's ready to slap onto a r/c model, some gents in the Netherlands implemented a cheap design using a smaller turbocharger and an empty Gaz propane camping stove cartridge back in '99. The original links to this design are harder to Google nowadays, now that the designers have gone commercial.

You've seen the movie, now buy the book: Gas Turbine Engines for Model Aircraft by Kurt Schreckling [amazon.com]

What Kurt's design looks like [virgin.net] when built per plans.

Gas Turbine Builders Association [gtba.co.uk]

Photos [gtba.co.uk] from the GTBA of various completed motors, note the small sizes.

The pulsejet guy does turbo-turbines too (3, Informative)

NewtonsLaw (409638) | more than 10 years ago | (#9091795)

The guy who built the cruise missile and those pulsejets (me) also built a turbo-turbine back in 2001 and documented it here [aardvark.co.nz]

Then I added the afterburner [aardvark.co.nz]

And if you want to see a really cool turbine-powered gokart [nickhaddock.co.uk] check out Nick's website.

More pulsejet/turbojet links and things here. [aardvark.co.nz]

Now we're all really keen to enter the chinese version of full metal challenge [yin-long.com] !

Actual Use for this....sorta (2, Interesting)

black_umbrella (778034) | more than 10 years ago | (#9091798)

Actually we used a turbojet made from a car turbo in my undergraduate mechanical engineering energy conversion lab.. Needless to say these thing get efficiency values around 10% to 12% or much less( I thin I remember a value 3% in my lab report). If I can recall my gas turbine design class, normal aircraft turbojets are closer to 60% or even 80%...

These people obviously... (1)

A Boy and His Blob (772370) | more than 10 years ago | (#9091964)

didn't see Donnie Darko.
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