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Derwin
05-04-2008, 03:11 PM
Well, since there is absolutely nothing going on over at the "official" site, I thought I would keep things interesting by posting this new concept vehicle. I actually have had dealings with the owner of this company about 10 years ago. I don't know about this new design, though. It seems mighty dangerous to me! Take a look, and let me know what you think.



Rocket Helicopter

For decades people have dreamed to fly in a backpack helicopter.

The idea is not new, it was in the 40's that the idea was proposed by the Austrian Paul Baumgartl and later by others that tried to fly with internal combustion engines but the lack of a powerful engine put this project in the dreams file, even nowadays the most powerful engines are the most unreliable, the two stroke engines, ask me with three in-flight engine failures flying gyrocopters.

In the 60's came Eugene Gluhareff with his idea of the strap-on helicopter and he designed and built the MEG-1X that was powered by one of his valve less pulse jets with a single blade and a counter weight on the other side and later with the MEG-2X and he was able to fly but the problem that he found was that the jet engine when hot become plastic and deformed because it is made of a thin sheet of stainless steel and the huge loads of the centrifugal force deformed and in one case the tail of one of his engines flew away.

His idea was perfect, but the engine was heavy for this application.

Later it was done with ram jets by Hiller with the same kind of problem, very heavy engines that stressed the rotor blades at the root, but his idea to mount a jet engine to the tip of the rotor blades became successful when an American inventor named Gilbert Magill sketched out his plans for a portable "minicopter." his helicopter was powered by a pair of twin hydrogen peroxide rockets inside the rotor blades and it flew very well but he wanted to sell it to the military and they where more interested in Cobras or fully armored helicopters and Magill ran out of money in the mid-1980s, and a bank seized his assets, including the helicopter design.

Liteco a Swiss company bought the assets from the bank and they did some modifications to the original Magill helicopter that developed in the Firebird and later Liteco asked Advanced Technologies Incorporated to develop the new two place Atlas rocket tip helicopter but nobody at Liteco understood the operation of the helicopter and after Liteco folded, Intora a British company bought the patents and the assets and planed to make the helicopter for sale to the military.

I was contacted by Intora to design a new rocket engine and I designed and built the new rocket engine to be used in the Firebird and in the Atlas a new two place version, these helicopters flew flawless with incredible agility.

In a videotaped demonstration, the helicopter took off from a trailer behind a pickup truck, flew under a low bridge, then landed back on the trailer with a precision that no conventional helicopter could match.

The government of Dubai was impressed by a 1999 test flight and expressed interest in ordering a fleet of the helicopters as soon as the design is perfected.

It was a fight between the partners and not a technical problem that ended with the Intora company, maybe in some hangar are stored this wonderful helicopters but the most important is that it was a proven and tested concept that flew incredible well.

A safer and easier helicopter to fly

The best of this technology is that this kind of helicopters don't need a tail rotor because they don't have any torque, so with a simple vane they can turn being the simplest form of an helicopter and the easiest and safer to fly.

Because 80% of the helicopter accidents are blamed to tail rotor failure that is most of the times fatal.

The only way to avoid the tail rotor is with a pair of counter rotating rotor blades or with a direct jet impulse at the tips of the rotor blades and this is the exact idea to make my micro helicopter, this will be the lightest helicopter in the world, so light that you strap it to your body with a carbon fiber corset and the best part is that I have everything to make it because I will use most of the parts and molds I did for the rocket belt project and I have the technology and the know how so it is only time to be able to test fly this helicopter.


Here are a couple animation videos:

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Thanks to curtis paddock for the heads-up!

Derwin

Mike kZ
05-05-2008, 08:59 AM
"In a videotaped demonstration, the helicopter took off from a trailer behind a pickup truck, flew under a low bridge, then landed back on the trailer with a precision that no conventional helicopter could match."

I'd like to see that video!

rogwild
05-05-2008, 01:31 PM
Yeah, looks great (if you want to 'fly' a cartoon animated figure). Let's see it with an actual person! Wonder what the DURATION is on those tanks? Very short flight time for the old Rocket Belt. At least with this, you ?-may-? have a chance to 'auto-rotate' to a semi-safe landing if you run out of fuel at altitude. (Helicopter auto-rotations use to take quite a BEATING on the landing gear during practice sessions; wonder how long a couple human legs would last?

Derwin
05-05-2008, 06:21 PM
You may already know this, but this same guy sells "working rocket-belts" based on the Bell Aerosystems design (I wrote 2 books about this subject). If you do a little research, you will quickly see that he does not even show a video of him or an associate actually flying the rocket belt. Instead, they show the device strapped to his back and doing simple jumps on a tether. I think it is a bit fraudulent, but I have no way to prove that. It's just my opinion.

On a side note......this same guy left a very bad review of my book "The Amazing Rocket-Belt" at amazon.com. He and I never did see eye to eye on things.

Anywhoooo....... Maybe this new device will be better... :rolleyes:

Derwin

Necoras
05-05-2008, 06:35 PM
I'd be shocked if this works. I'm not a helicopter engineer, but my dad is. He's worked on simulation software for helicopters for over 20 years. My biggest question would be on blade stability. Helicopter blades don't stay straight as they spin; they flail up and down fairly violently. Add a jet/rocket onto the end of this and you're just begging for trouble. Just my 2 cents.

FutureBoy
05-06-2008, 12:08 AM
Reminds me of this thing I saw a few years ago:

One man helicopter:
http://www.acecraftusa.com/photos.html

For a mere $60k, you can get one now (some assembly required).

beeson
05-06-2008, 08:09 AM
Helicopters have a tail rotor for a reason. Or counter rotating blades. This thing has neither and the "pilot" would start to counter rotate faster and faster. Unless the laws of physics have been changed, this just won't work.

Derwin
05-06-2008, 08:44 AM
I think this thing is about as feasible as this....

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Pretty neat video!

Derwin

MarkH
05-07-2008, 12:33 AM
Didn't the Mythbusters to a segment about getting a ducted fan powered backpack airborne? As I recall it was altitude challenged. Busted.

I can't see this thing doing any better. And I agree about the tail rotor comment. There aren't counter rotating blades seen on it either.

rogwild
05-07-2008, 06:50 AM
They could use gas jets instead of a tail rotor to counter the torque; but it would severely impact the range (would use the same propellant used to move the main rotors). But I have to agree, this particular machine is "BUSTED".