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Home✈️Aircraft🚁HelicopterHelicopter Main Discussion › The Dynamic Stabilizer : Now an abandoned patent
08-22-2008 05:30 PM  12 years ago
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heliraptor10

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kokomo, in-US

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The Dynamic Stabilizer : Now an abandoned patent
Allright,
I have completed the first leg of the journey that is the patent,
so I will now disclose my invention,
the Dynamic Stabilizer.

Regular stabilizers are fixed fins mounted onto an aircraft.
I have designed a stabilizer mounted on an axis so it rotates 360 degrees. It is mounted in such a way that the airflow pushes it into the proper position.

In fast forward flight such as figure 5 the fins blow backwards giving it a "fixed wing" to obtain "lift" <(I say "lift" because the fin is symmetrical so there is no traditional lift, yet the surface does provide prevention of altitude loss). More of the helis power goes towards forward motion instead of maintaining altitude. (I have video links I will post, and you can hear the difference in the motor when I come out of FFF, I have to throttle up considerably).

Watch at YouTube

/\Not sure why this isn't working/\,
use
http://www.youtube.com/watch?v=FtcufrSBzfU

Watch at YouTube

The fins rotate independently,
so they move accordingly for rolls and pirouettes.(I do not have this on video yet).

The fins also serve the purpose of their namesake,
stabilizing every move you make,
by providing light initial resistance to a maneuver (kind of like exponential),
and then following through into and maintaining it.

Kind of like training wheels for helis.

For this reason I don't anticipate the "pros" having much interest in them.

But because they allow FFF at much lower headspeeds,
they extend your flight time (only if the heli is in motion, they do nothing to affect hover).
This could mean extended range for UAVs or real helicopters.

If you want to tell me why my invention won't work,
feel free,
because I have built it and flown it I know.

If you want to tell me that it already exists,
again feel free,
I did all I could on my own to determine that it did not.

If you want to give me design suggestions,
that would be great,
but I can't say that I can cut you in,
because as of now,
I don't have income from it.
Goblin! where have you been all my life?
RC helis, the original fidget spinners
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08-22-2008 05:44 PM  12 years ago
helical

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Congrats on the innovation!
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08-22-2008 06:13 PM  12 years ago
DougsRC

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Mass.

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Seems like a fairly simple but effective design. It very hard to tell from the video the difference between flying with or without the mod. But if it helps a novice transition to forward flight with fewer crashes-- its gatta be a good thing.
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08-22-2008 06:20 PM  12 years ago
heliraptor10

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I am going to get a comparative video up soon.

The only difference will be the sound of the helicopter.

You can't see from the video what they do,
the effect is subtle.

But you can sure as heck FEEL it.

I went from tentative circles (10ft diameter low speed)to balls out circles encompassing almost my whole flight area.

My circles also used to always be around me,
now I can do a complete circle in front of me.

I used bring in to a hover when I went too high,
and very carefully bring it down,
now I just dive bomb.

I haven't done the comparative video yet because I am a little nervous about taking them off.

I'll get my new radio next week,
and I hope to test their effect on inverted flight within a month or so.

I designed them so that they could rotate 360 degrees,
so that even in inverted flight they would find their mark.
Goblin! where have you been all my life?
RC helis, the original fidget spinners
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08-22-2008 06:32 PM  12 years ago
ruddernate

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nice job hr. finally got to share the idea. that bird scoots!congratsfly it like you stole it
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08-22-2008 06:48 PM  12 years ago
heliraptor10

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kokomo, in-US

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That was something I noticed last time I flew,
that once I established forward flight,
it took a lot less forward tilt to maintain the speed.

In fact a lot of the times I am zipping by,
you can see that the heli is nearly parallel to the ground.

I am getting ready to test several different fin shapes and sizes.
Goblin! where have you been all my life?
RC helis, the original fidget spinners
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08-23-2008 02:01 AM  12 years ago
heliraptor10

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kokomo, in-US

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I just got done with a flight without the stabilizers,
it was like flying in slow motion.

They've definitely helped as "training wheels" because I was a lot more confident in my maneuvers.

But if I had to guess,
I would say that the heli flies nearly twice as fast with them on.

Imagine the application for full size helis,
a simple addition (for most models),
and the helicopter flies almost twice as fast,
and burning less fuel.
Goblin! where have you been all my life?
RC helis, the original fidget spinners
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08-23-2008 02:10 AM  12 years ago
ginnz

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MB,Canada

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awesome...! thats just awesome!

you can hear the difference clear as day in the motor r.p.m's! very interesting. id love to see tha tworking on a 500-600 ep heli.

but, man, get your buddy to film it nextime! ;-) its real hard doing such with a tyke at tow.... i know, i have a 5 yr old! ;-) oh, and a wife.... :-( (Jking)

really though, thats just freaken innovative. do you have a patent?
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08-23-2008 02:32 AM  12 years ago
heliraptor10

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Yes it is patent pending,
but it wasn't easy,
and I am seeking support for the rest of the process.

500-600 size,
Imagine it on a full scale heli.

Like a lifeliner that can fly faster with less forward pitch (less disturbing to the injured patient).

Or a military bird that can go further because it can run at lower head speeds.

The best thing is,
it is soooo freakin simple,
that it would be cake to mod almost any heli out there to have them.
Goblin! where have you been all my life?
RC helis, the original fidget spinners
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08-23-2008 03:00 AM  12 years ago
AirWolfRC

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I believe there are a number of full size helis past and present that use stub wings that serve as lifting / stabalizing surfaces. The Russian MI-24 comes to mind. You have articulated them but other wise, I see no difference. Bell helicopter may have already tried something like you have in their experiments over the past 40 years. If so, your patent may not stand.

Cudos for your efforts either way.
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08-23-2008 03:09 AM  12 years ago
heliraptor10

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As may have other companies,
but
if it had worked (as mine clearly does although I can comprehend people doubting without actually seeing and using it),
why don't we see it in use?

I did several patent searches,
and came up with ZIP.

The only helis I've seen that have a "wing" as a lifting surface,
are those weird ones with pusher props.

If a standard heli was to have a wing for lift it would have to be mounted at a weird angle.

Which is actually how I got the idea,
I put a wing on my lama v4 mounted on the rear at such an angle that while in FFF it became a like a plane, and it took off.

But set up like that it was hard to get the little heli to pitch that far forward.
Then I mounted the wing on a pivot,
and it all changed
Goblin! where have you been all my life?
RC helis, the original fidget spinners
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08-23-2008 03:12 AM  12 years ago
heliraptor10

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Ok wolf
You are right about the MI 24 I looked it up,
but,
do those give it support and lift flying in reverse?

Nope.

Goblin! where have you been all my life?
RC helis, the original fidget spinners
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08-23-2008 07:18 PM  12 years ago
AirWolfRC

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No, they don't. Like I said, yours articulate.

You might want to look up the history of Bell Helicopter. They,ve done some really interesting stuff.
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08-23-2008 07:25 PM  12 years ago
heliraptor10

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Well at this point I have invested all of the cash that I can,
I am going to have to get some sort of sponsorship to go any further.

And as for my time testing this stuff I am not worried about losing it,
I am having a blast.

I haven't researched Bell history in specifically,
But somewhere in my wanderings on here,
I found a link to a page full of neat stuff.

I even found a black and white photo of a helicopter that didn't drive the main rotors directly,
each rotor had a propeller on it as if there were four little airplanes on the top,
it was an ingenious way of dealing with the torque problem.

Right now I am fabricating new fins,
I am trying a shark fin shape,
and I am making them so they go on and off easily so that I can do a comparative video without a lot of hassle.
Goblin! where have you been all my life?
RC helis, the original fidget spinners
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08-23-2008 08:24 PM  12 years ago
TachyonDriver

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Chipping, Lancs, UK

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You may want to look at this BTW

http://www.challis-heliplane.com/v3/

It has a fixed "wing" - another interesting concept that combats retreating blade stall, thus allowing the heli to fly faster, but it does have a propeller to augment the forward speed. Obviously forward speed is their issue as opposed to additional stability as per your idea.

Tach.
Little Spinning Bundle of Joy® DON'T DISS THE DINO!!
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08-23-2008 08:49 PM  12 years ago
MMike

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Holland,Mi-USA

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Book Mark.
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08-23-2008 09:27 PM  12 years ago
3dhiro

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Scotland

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Do you have any physics calculations to prove how this concept works? Sorry but I fail to see how a freely rotating fin can create anything else than drag.
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08-23-2008 09:38 PM  12 years ago
heliraptor10

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kokomo, in-US

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Other than in my head no,
and they do create a mild amount of drag,
it's part of their function.

They are weighted so that they have a natural tendency to want to hang down.

But after sufficient airflow from forward flight or wind,
they get pushed back into an angle where they create less drag.

Give me a few minutes I will try and come up with a better visual.

I'm sorry I can't throw out physics,
I also can't run computer sims on it,
I just like things that fly.
Goblin! where have you been all my life?
RC helis, the original fidget spinners
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08-23-2008 09:57 PM  12 years ago
heliraptor10

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kokomo, in-US

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Well I was going to make a wind tunnel sort of thing in photoshop,
but I can't manage it.

It's really simple,
wings stabilize and provide lift,
although mine aren't designed for lift persay they do prevent altitude loss.

As you are going into forward flight,
the faster you go the more air gets deflected off of the main rotors (while the rest is pulled through),
and it requires more headspeed to maintain altitude.

My stabilizers assist the heli in maintaining altitude by directing airflow.

Did you watch the videos?
You can hear it fairly clearly.
Under normal circumstances FFF requires a higher headspeed than hovering,
But I go straight from hovering into FFF without an increase.

I realize it is hard to take my word for it as of yet.

I will have more shortly,
I have a DX6i now,
and I can do a comparative video that shows all of my throttle and pitch curves remain the same.

And I will have the camera person show my controls from time to time.
Goblin! where have you been all my life?
RC helis, the original fidget spinners
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08-24-2008 12:26 AM  12 years ago
heliraptor10

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kokomo, in-US

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Here's the latest configuration,
on its way to be tested.

Hopefully my new radio is as set up as I feel it is.

Goblin! where have you been all my life?
RC helis, the original fidget spinners
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Home✈️Aircraft🚁HelicopterHelicopter Main Discussion › The Dynamic Stabilizer : Now an abandoned patent
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