RunRyder - My Custom Raptor 90 Rotorhead

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CAD - Engineering - Technical > My Custom Raptor 90 Rotorhead

damaen
Senior Heliman
Location: Umeå, Sweden

What do you think?

Click for picture:
http://www.rcheli.se/phpBB220/album...php?pic_id=8677

Henrik

07-20-2007 11:57 AM

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Wa11banger
Elite Veteran
Location: Huntsville, Al

First off fantastic cad work.. That is great

Secondly, seriously awesome looking head design. for me super mechanical looks good and thats a good looking head design +10 in asthetics department.

Third wow that made a head complicated, that looks to have alot of parts, more little tiny items to bend or break than standard

Just my initial thoughts.. How long before one or two are available for testing and validation?

**EDITED**
It also looks like if you over extend the dampeners capability or if they are slightly worn you will have metal to metal contact between the rocker and the head block and that is not a real good thing.

Rick

Proud member of the Quick UK, Duralite Flight Systems, V-Blade, and K&B Dream Designs Teams

07-20-2007 12:34 PM

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RobRoy
Key Veteran
Location: Huntsville, Alabama

Looks great. How would moving the rotor disk further up affect 3D/Aerobatic performance? seems to me if the disk was further away from the center of mass it would result in slower rolls and flips.

Ignorance is curable, stupidity is for life.

07-20-2007 01:59 PM

HiroboEric
Veteran
Location: Los Angeles, CA.

That looks like a beautiful design. Is it available for purchase?

Eric Pacheco, AirWorksRC.com

07-20-2007 05:04 PM

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IYKIST
Veteran
Location: London united kingdom

Link comes up blank

08-19-2007 09:37 PM

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helicrack
Senior Heliman
Location: Laporte, Indiana

Quote
Link comes up blank

Same Here

".........said the joker to the thief"

08-21-2007 05:45 AM

QuickSilver
Veteran
Location: Cherry Hill, New Jersey

Link

Bad link, nothing there

Life is not measured by the number of breaths we take, but by the moments that take our breath away.

08-26-2007 01:37 PM

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damaen
Senior Heliman
Location: Umeå, Sweden

Now the link is working..

If anyone is interested in producing it, contact me...

Henrik

08-26-2007 07:57 PM

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Topher
Veteran
Location: Grosse Ile, Michigan

I approve.

08-28-2007 04:53 AM

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Toolman
Senior Heliman
Location: London

I think that your rotor head design is very interesting & I wouldn’t be surprised if the flight characteristics are very good once you have found the right stiffness of dampeners.

My only concern is that the continual flexing of the spindle will cause the spindle carrier to fail. The only current head that has a solid mounted spindle is the Hirobo Freya head & they have problems with the head blocks cracking.

Maybe you could bore out the through hole (in the spindle carrier) to have a bit of clearance on the spindle and then have a brass bushing pressed into each end to contact the spindle over a smaller area. This would then allow the spindle to bend without stressing the carrier.

Anyway Good luck with the project.

Tim.

08-30-2007 09:08 AM

umdpru
Key Veteran
Location: Massachusetts

That looks like a really good design but I'm just having trouble visualizing the assembly and operating principles of the design. It could just be that I am not familiar with the contruction and operation of the stock raptor rotor head though.

What about a cutaway view?

08-30-2007 07:36 PM

Bryguy17
Senior Heliman
Location: Fullerton, San Luis Obispo CA

i think it looks good, just needa see how it performs now... i do agree with toolman though, you may need something to keep the spindle from screwing with its carrier

SLO Flyers
TREX SA with amazing figure 8 action!

09-05-2007 01:04 AM

damaen
Senior Heliman
Location: Umeå, Sweden

Yes, a bronze bushing for the spindle might be necessary. Testing will show that.

If someone has access to a machine shop and want to make a prototype to try I can send the models (SolidWorks).

Henrik

09-05-2007 09:01 AM

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Brunobl
Senior Heliman
Location: Pomerode, Santa Catarina - Brazil