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HomeAircraftHelicopterHelicopter Main Discussion › Pulse-jet speed helicopter...
10-30-2013 10:00 PM  5 years agoPost 21
love2flylow

rrApprentice

New Hampshaa US of A

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love to see your "anti heat" mount on the heli id give it about 3 seconds till melt down lol

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10-30-2013 10:17 PM  5 years agoPost 22
wrongler

rrProfessor

Brewerton, New York

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Yup, I want one of those running in my shop!

Can't quit figure how to mount it!

Bill Whittaker

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10-31-2013 12:13 AM  5 years agoPost 23
Retired2011

rrElite Veteran

Lee's Summit, MO

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I think you would need to procure some Kryptonite for a heat shield, and Oat would have to make you an asbestos canopy

Even then - Logo's would not be a good candidate.

Chet

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10-31-2013 01:15 AM  5 years agoPost 24
rocket_33

rrElite Veteran

Mount Pleasant, Michigan USA

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They still use these for control line speed and boy are they impressive!!! I have been fortunate to see these fly and I can't even imagine being the pilot

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10-31-2013 01:21 AM  5 years agoPost 25
Manny1776

rrVeteran

Melbourne, Florida. USA

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Make it Fly Bar because the deep vibration from the noise going to affect any FBL system....

Fly High, Fly Fun, Fly Secure.........Fly 3D!!!! Bavarian Demon USA Team

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10-31-2013 01:41 AM  5 years agoPost 26
love2flylow

rrApprentice

New Hampshaa US of A

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wonder how 4 of these would work on a quad platform?? OH boy that would be sweet!

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10-31-2013 01:51 AM  5 years agoPost 27
cudaboy_71

rrElite Veteran

sacramento, ca, u.s.

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i'm thinking a tipjet installation might actually be flyable. loud. but, flyable.

if it ain't broke, break it.

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10-31-2013 02:14 AM  5 years agoPost 28
John Krebs

rrVeteran

Pittsburgh, PA

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I think it was during IRCHA 2006 I saw a guy flying a control line plan with a pulse jet. Very loud and very fast. I think the plane went around six more laps after the engine shut off.

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10-31-2013 03:06 AM  5 years agoPost 29
Justin Stuart (RIP)

rrMaster

Plano, Texas

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I understand pulse jets run best on Coleman fuel, so it would smell like cooking hot-dogs. I still can't get over the white-hot metal in the other video.

Avant RC
Scorpion Power Systems
Thunder Power RC
Kontronik Drives

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10-31-2013 03:18 AM  5 years agoPost 30
GREYEAGLE

rrElite Veteran

Flat Land's

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They will run just about on any thing that will ignite - I literally gave mine away - a Original Dyna Jet. Now that I know how to make reed's by the couple at a time I kinda regret it.

Be fun to have a Big ONE

Watch at YouTube

greyeagle

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10-31-2013 03:28 AM  5 years agoPost 31
GetToDaChopper

rrElite Veteran

Las Vegas , NV

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it gets a little hot to be straping one on to a heli ?!?

    ▲
  ▲ ▲
▲ ▲ ▲ One of a Kind !!!

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10-31-2013 10:18 AM  5 years agoPost 32
wrongler

rrProfessor

Brewerton, New York

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OK, I got it, Strap 2 of these bad boy's to the heli rotor blades and go! You also get night blades!

Bill Whittaker

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10-31-2013 11:39 AM  5 years agoPost 33
Retired2011

rrElite Veteran

Lee's Summit, MO

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I'm trying to figure out how you would get fuel to the motors, could be pretty interesting if the rotary seal on the fuel line failed at 2,000 rpm.

Chet

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10-31-2013 07:11 PM  5 years agoPost 34
Andy from Sandy

rrElite Veteran

Bedfordshire, UK

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A valved pulse jet is a very old technology. It was around long before the turbine jet engines we see on aircraft today.
http://www.bbc.co.uk/news/magazine-20407283

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11-01-2013 10:31 AM  5 years agoPost 35
GetToDaChopper

rrElite Veteran

Las Vegas , NV

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Watch at YouTube

    ▲
  ▲ ▲
▲ ▲ ▲ One of a Kind !!!

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11-01-2013 01:05 PM  5 years agoPost 36
Justin Stuart (RIP)

rrMaster

Plano, Texas

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^^^

So the Germans just aimed the V1 towards London, fired up the engine, and hoped it would hit something? Or was there some sort of control?

Avant RC
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11-01-2013 01:35 PM  5 years agoPost 37
wjvail

rrKey Veteran

Meridian, Mississippi

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Watch at YouTube

Watch at YouTube

Watch at YouTube

Pulse-jet helicopters have been done before with limited success. I think fuel consumption and sound was a problem. Because of where they were mounted engine heat wasn't really that big an issue.

A less than immediately obvious advantage is that since the torque generator (engine) is not in the body of the aircraft, but instead in the blades themselves, there is no torque reaction and no need for a powerful tail rotor.

I'd love to see a model heli built from a couple of these pulse jets. Two of them mounted to a couple of 1,500mm blades roaring away - magic!

Bill

"Well, nothing bad can happen now."

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11-01-2013 02:50 PM  5 years agoPost 38
Justin Stuart (RIP)

rrMaster

Plano, Texas

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^^ How are you reliably going to get fuel to the tips of the rotorblades?

Avant RC
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11-01-2013 03:15 PM  5 years agoPost 39
wjvail

rrKey Veteran

Meridian, Mississippi

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How are you reliably going to get fuel to the tips of the rotorblades?
Not having personaly done it, the only correct answer is "I don't know"... but the most obvious place to start is by pluming a fuel line through the hollow blades out to the tips.

"Well, nothing bad can happen now."

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11-01-2013 07:05 PM  5 years agoPost 40
Andy from Sandy

rrElite Veteran

Bedfordshire, UK

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So the Germans just aimed the V1 towards London, fired up the engine, and hoped it would hit something? Or was there some sort of control?
That is pretty much it. I think they had flight some sort of flight stabilisation. Enough fuel to get here and then...

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