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HomeOff Topics › video) 250 MPH plane, with no engine
08-18-2017 07:10 PM  15 months agoPost 1
Gearhead

rrMaster

Vt

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so now I am waiting for some one to clarify if a Pulse Jet is an engine or a motor, I would say a motor, cause it doesn't have pistons that create compression and combustion

Watch at YouTube

?t=77

Jim
Buzz Buzz Buzz

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08-18-2017 07:26 PM  15 months agoPost 2
InvertedDude

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USA

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Gearhead
Pulse Jet....it works in pulses!

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HomeOff Topics › video) 250 MPH plane, with no engine
08-18-2017 07:46 PM  15 months ago •• Post 3 ••
spaceman spiff

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Tucson

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The most aweful sounding engines ever invented. Demon farts.

Looks like fun though.

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08-18-2017 08:33 PM  15 months agoPost 4
wrongler

rrProfessor

Brewerton, New York

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Impressive...

Bill Whittaker

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08-18-2017 08:46 PM  15 months agoPost 5
RM3

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Killeen, Texas - USA

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funny thing is that my gasser sounds the same way... when I take the V2 muffler off...

showing a preference will only get you into trouble, 90% of everything is crap...

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08-20-2017 04:12 AM  15 months agoPost 6
EEngineer

rrProfessor

TX

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"Pulse Jet is an engine or a motor"

I have a couple of them, but not as big at those in the video.

Those are big.....that's cool....I wonder what the FAA thinks of those....LOL

They are a primitive type of jet engine.

With the ones that I have, the only moving part is a "reed" valve in the front end.

During operation, the air flowing into the intake is ignited by the end of the previous ignition pulse. When this ignition occurs, the blast forces the reed forward, closing the front air intake end....forcing the blast out the back end to generate thrust.

After this ignition blast out the back end, the reed "relaxes" so that air can be again forced into its combustion chamber, and the cycle repeats.

The heat of combustion can make the end of the tail pipe glow a dull red....and the aircraft must be insulated from the heat....

A spark plug is mounted at the combustion chamber and is used only to start the ignition sequence....and it will run without the plug afterwards.

The is no throttle and it runs WFO.

The limiting factor is the speed of the aircraft, as at above a certain speed, the reed does not fully shut closed and can allow the ignition blast out the front end.

As was mentioned, it's louder than "all getout".....

But that's kinda the fun of it.....imo....LOL

They have an event at the AMA Nats just for these beasts....control line....fun to watch....and you can hear them from anywhere at the Nats site....

They can clock in at over 200 MPH....and the pilot is leaning back on his heels to counter the centrifugal force.

Full size versions were used on the German V1 aircraft during WW2...and were the forerunner of a "cruise missile"....and the sound they made gave rise to its nickname...."buzzbomb".

Logo 600SXs, 800XX, TDR IIs

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08-20-2017 04:33 AM  15 months agoPost 7
EEngineer

rrProfessor

TX

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That video was cool.....even cooler would be a "midair"....

Maniacs.....LOL

Logo 600SXs, 800XX, TDR IIs

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08-20-2017 07:07 AM  15 months agoPost 8
Gearhead

rrMaster

Vt

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I had a chance to buy a used Pulse Engine years ago, but at the time I didn't fly, I should have bought it for a boat LOL

if I was around to see one fly I would never take my eyes off it, can you imagine if one of those planes hit you at 225MPH, about all you would have time to say would be "ouch",

they sure do climb don't they

Jim
Buzz Buzz Buzz

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08-20-2017 02:31 PM  15 months agoPost 9
EEngineer

rrProfessor

TX

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Man, they sure do....

How about pulse jet pylon races....lol

Logo 600SXs, 800XX, TDR IIs

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08-20-2017 03:35 PM  15 months agoPost 10
GyroFreak

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Orlando Florida ...28N 81W

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an engine or a motor,
It is neither or both. An outboard motor, or a car engine. Both are piston mechanical devices.

I think about the hereafter. I go somewhere to get something, then wonder what I'm here after ?

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08-20-2017 03:54 PM  15 months agoPost 11
EEngineer

rrProfessor

TX

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Or an engine is a device that converts a form of energy into another form of energy.....

Logo 600SXs, 800XX, TDR IIs

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08-20-2017 08:24 PM  15 months agoPost 12
MPA

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Australia

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The British seem to call everything a "Motor"

We use the term "Engine" similar to the US, most of our cars in Aus are US based GM, Ford, Mopar etc.
"Motor" is used for Electric Motors
Where "Engines" is anything that uses fuel like Jet, Diesel, Petrol, Glow plug etc.
So for us it'd be a Jet Engine.

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08-22-2017 02:15 PM  14 months agoPost 13
ferincr

rrVeteran

From Argentina now in Costa Rica

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The British seem to call everything a "Motor"
We use the term "Engine" similar to the US, most of our cars in Aus are US based GM, Ford, Mopar etc.
"Motor" is used for Electric Motors
Where "Engines" is anything that uses fuel like Jet, Diesel, Petrol, Glow plug etc.
So for us it'd be a Jet Engine.
+1 but then in the US they call car enthusiasts "motor heads" and not engine heads

Intelligence chases me, but I'm a lot faster! Fernando

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08-22-2017 02:35 PM  14 months agoPost 14
Pistol Pete

rrProfessor

Seffner, FL

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Pulse Jet is an engine or a motor?
It's a pulse jet engine.

They do not have to have pistons to be classified an engine.

If they did, airliners manufacturers and the US Air Force have it all wrong.

~~Enjoying the hobby one flight at a time~~

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08-22-2017 03:35 PM  14 months agoPost 15
GyroFreak

rrProfessor

Orlando Florida ...28N 81W

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So MPA, do you refer to outboards as "outboard engine" instead of outboard motor ? But I agree, a motor is electric, just hard for me to refer to an outboard motor as an engine.

I think about the hereafter. I go somewhere to get something, then wonder what I'm here after ?

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08-22-2017 09:15 PM  14 months agoPost 16
Pistol Pete

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Seffner, FL

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Outboard engine on a motorboat

~~Enjoying the hobby one flight at a time~~

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