big pulse-jet near 100% full throttle

[PwntifexMaximus]

Hahaha, you look so calm during the flameout @ 0:42! Awesome work man!

[apismellifera1000]

That was cool you should mount that on a gokart

[neem2345]

what was the thrust you got with this engine..

[1metiz]

@neem2345 Never tested it. The engine was pretty shit, and the build quality was horendous. It could've been anywhere from 50 to 200 pounds. I think about 150

[wpockl]

Looks like your almost ready to rap a go-cart around it! Great work!

[wackojackoschmacko]

HAHAHA between 0:35 - 0:40 face looks like he jizzed HAHAHA

[1metiz]

@wackojackoschmacko

gasping for air, actually :P it's almost intollerable to stand next to the thing when it's running hard

[tobilius2008]

So what is it?.....

And next time you fire it up. give me a bell, im a fireman, i could give some great advice and i can tell you where to buy burns gel packs.

[1metiz]

@tobilius2008

lets leave the drama at bay. I'm still alive, burn free. If you're carefull there's no danger

[JustWickedSwede]

No, put it on something! A cajak!!!

[tocaracer06]

0:45 flame on!

[GrantChampionTV]

This is such a cool project. I want to make one.

[KarbineKyle]

NICE JOB! THUMBS UP! I wish I had the time and money to do these! I'd add some sort of heat sinks to that though! I saw that it was getting red hot! =D

[mjglopez]

1:02 - there's the problem. LOL. awesome though

[Rebelx1969]

I would love to have one of those on my street . LOL

[sking0369]

Why the smaller tubes sticking out at an angle?

[1metiz]

@sking0369

Those are intakes. The engine requires intakes to breath oxigen

[nateayers]

tell me that doesn't look like a bong

[juzzlookin]

0:45 or slightly before, looks like youi have a leak?

[pimenton73]

Well, I'm not sure but I think that engines technology looks extremly dangerous...

[st0n1e]

Very cool. This is the kind of scale I want to use when making one. Problem I have is Material and Science expertise. Google can help me with science.

[Grovonator]

i've watched a number of pulse jet tests on you tube, and this was the first that seemed to have any sense, good job wearing ear protection!

[ducttaperulestheworl]

that's CRAZY AWESOME!!!

[stephenswickedcool]

This thing clearly gets wayyy to hot man, be careful! Also, probably a wise idea to move the fuel source a little bit further away so nothing blows up next to you!

[KIBProductionz]

WHATS MORE EFFICIENT? A PULSEJET OR A TURBOJET?

[GavinS1965]

Nice!What fuel are you using?

[1metiz]

@GavinS1965

propane

[GT03235]

so this pj is valveless?

[nhojohn]

nicely done- i'm glad that no-one was hurt in the flameout...

[weldon0m]

checkout v1 argus pulsejet for the full experiance !

[xxxTERMINEITORxxx]

ASDF

[csarcsi444]

0:47

ypu scared out the shit from me lol

[Crazyrob100]

gggggggggggggg

[Fritztoons]

nice job mate! Are you going to propell a vehicel with it?

[monsieurcollins]

Nice work Metiz, love the test site ;-)

[SnooperSquirrelFilms]

nice job , one of the better engine displays i have seen so far...be careful , they can be dangerous

[DrXsjado]

Are these things real responsive to throttle change?

[1metiz]

as fast as you can turn the gas vavle. much more responsive then turbine engines

[FullyFilledLife]

how much trust it produce?

[serpadu]

bigger!

[SteveCrothers]

Nice, since you seem to know what your talking about. I've been wondering if there is a way to increase the speed at which the reverse pressure that re-ignites the fuel source can be sped up.

As in decrease the wavelength of the pulsejet (its the only way I can describe it really...).

However without having to increase power/fuel consumption.

[1metiz]

If only we knew that lol. pde here I come!

[SteveCrothers]

Oh lol.

[weirdbikes]

From my efforts with lockwood type pulsejets you can increase the intake efficiency with a flared or ram intake, or a shortened intake and exhaust, but then they get harder to start.

Meitz, nice flame out.

Bob, i have run my smaller jets on propane through an acetylene regulator, the throttle effect of reducing/increasing gas is great, my big ones get propane and vapourised diesel through a variable pressure regulator, awesome.

[Splooshiba]

wouldn't the characteristics of the chamber (length) and the fuel change this

[Darking22]

to close of the gas fuel

[blake2go]

I'd love to have the plans if you would be so kind.

Excellent job!

[1metiz]

sorry, plans are not mine to hand out

[1NoneofYourBusiness1]

This jet = podracer?

[1metiz]

hehe that's a good one actually....

[sweetbob67]

ummmmm how much thrust does it have

[1metiz]

Never tested that. The design states about 100 pounds at worst, 300 pounds at best

[sweetbob67]

nah that i would say give maybe 80 pounds 80 pounds per square foot

[1metiz]

dude, seriously. learn at least some grammar, please. have you seen the engines posted on my channel? that's about 60% of all the engines I have. That's a lot of engines, Bob. I'd like to think I know a thing or 2 about these things, like I know a thing or 2 about grammar. All you say is f*cking bullshit; you havn't got the slightest clue what you are talking about.

[sanko26]

I wonder the throttle of pulse jet engines (valve or valveless) is variable or not?I would be glad,if someone told me it!

[1metiz]

Yep, pulse-jets can be throttled simply by regulating fuel flow. They will throttle up and down as fast as you can turn the tap, pretty much

[sweetbob67]

no you regulate it by the pressure i the gas chamber you can either make the tube smaller to keep more gas being held in the chamber or you can take the blower and amp the speed up of the blower and the gas will be pumped out faster and it will produce a more pressurized the gas in the chamber so the gas will start rocketing out and down the tube causing more thrust if you regulate it by the gas flow it will work but it will use alot more fuel and the blower idea will save alot of fuel

[1metiz]

If I understand your grammer (doubt it): no, pulse-jets don't work that way.

[sweetbob67]

well if you use the right fuel it does i mean you used propane that is the taotal opposite kind of fuel i mean my uncle builds this stuff in fact they are trying to make a new kind of pulse jet that has stabalizing streams of fuel on the sides to keep the pressure at an even psi

[1metiz]

Do you mean the pressure in the cc or the fuel flow pressure. If it's fuel flow, an even psi is useless. It isn't called PULSE-jet for nothing - it only needs fuel one part of the cycle. If you mean CC psi, than that would mean it's not a PULSE-jet anymore. The pressure fluctuates per definition

[sweetbob67]

da but you need a direct fuel pressure in the holding chamber where it ignites it looks like you don't even have a burning chamber

[sanko26]

it's a good engine!

[noxagol]

Looks like you need better welds.

[1metiz]

that's a given XD

[suzuki834]

just gota put that onb a frame and go

[mjok2004]

I would leave the pipe tapered smaller as it will increase your thrust

[1metiz]

what do you mean, the exhaust or the divergant/ reflector array? the exhaust itself is good. the divergant/r was not. it has since been removed and the engine ran a lot better - until it imploded that is

[wheetcracker]

haha 0:43

[n108bg]

pulsejet-the easy way to piss off your neighbors..while on a farm!

[MonkeyWithAWrench]

@n108bg yea... been there done that... funny as hell though!

[NinjaKid3000]

really cool but what purpose does it serve?

u shud attach to something

[MxAndRc4ever]

Like what just put some wings on that and let it rip itll fly for miles!;P.... before it hits some in the head... or the face... or thier car.. ya good luck with that ;P

[yaventil]

o my gosh it looked like hell all the flames but thats probaly becouse your gas tank is upside down

but otherwise it woulden get enough gas.:)

[noxagol]

Tank orientation is irrelevant really.

[1metiz]

no it isn't. upside down dumps liquid fuel into the engine

[ioan21121221]

im sure theres a way to stop that.

[sweetbob67]

what kind of fuel did you use

[1metiz]

propane

[sweetbob67]

oh wtf why would you use that kind fuel that is like the opposite fuel

[1metiz]

works quite nicely, as you can see

[sweetbob67]

ya but it would work better with alchol based carbon state buring oxygen haven't you ever heard liquid oxygen

[1metiz]

Both alcohol and especially oxygen burn way to fast and violent to be of any use in an engine this size read: it wouldn't even run. It would also burn of my injectors and explode my fuel tank without some serious flashback arrestors. Oxigen ang alcohol are only realy usefull in extremely small engines, like those that can fit in the palm of your hand and run at >1000hz instead of 150~ that this engine does

[supertommy33]

wow nice