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JET .... powered Bell 412 helicopter - 9/25/2012 6:01 AM   
wojtek


 

Posts: 3865
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Last Login: 5/24/2013
From: nj, NJ, USA
Status: offline 		well, it is a jet .. ( on the inside at least :P ) .. I was going to wait to get some better video, but looks like time wont let me any time soon, so I'll post this...

I was planning on building a big 1/6 scale 412 for a long time, however I came across a beautifully built one ready to go that I could not pass up on . Its built by Ian Thornley from the UK.. I had some issues setting up the Futaba gy750 gyro, but i got it squared away after finding it had some default values on the expo settings which were causing the tail to be out of control at first ... anyway, here is video from my sons cell phone ( i know, not that great ) of the first actual flight ...

The helicopter is by Vario and is in 1/6 scale. Power is a Jakadofsky Pro turbine running at a fixed RPM. These engines are made to only run at "full" which is nice for efficiency and optimal run. Now i just have to scale it out, and I'm starting with the cockpit .. in particular i am working on the cockpit Our new product is going inside for a very extensively functional glass cockpit





~V~

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Nothing can ever be fast (or scale ;) ) enough !!!


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RE: JET .... powered Bell 412 helicopter - 9/25/2012 11:29 AM   
Jetkopter



Posts: 838
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From: Putnam Valley, NY, USA
Status: offline 		Wojy, what where you doing up at 1 am posting heli videos?

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RE: JET .... powered Bell 412 helicopter - 9/25/2012 1:48 PM   
FalconWings



Posts: 5110
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Last Login: 5/24/2013
From: Fort Worth, TX, USA
Status: offline 		Did you see the one on the Jetpower thread? OMG, awesome.

Man I'm really starting to develop a vein for scale turbine helos, so you're not alone.

Nice one Voy!

David

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RE: JET .... powered Bell 412 helicopter - 9/25/2012 2:13 PM   
wojtek


 

Posts: 3865
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Joined: 12/26/2001
Last Login: 5/24/2013
From: nj, NJ, USA
Status: offline 		Don, with two kids in the home now, sometimes that leaves me up catching up with work into the wee hours of the morning, lol ... Our daughter is just past 1 month ...




Yes ! I did see the 412 on the JetPower thread .. I have been into turbine helis myself before even the jets . .. My other bird is a EC135 . I had a rotor grip let go resulting in a tail strike, so this one is out on repair leave :\ ..








~V~




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Nothing can ever be fast (or scale ;) ) enough !!!


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RE: JET .... powered Bell 412 helicopter - 9/25/2012 2:42 PM   
FalconWings



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From: Fort Worth, TX, USA
Status: offline 		I'm sitting down all day everyday 5 ft from a 1/4 scale Bell 525 wind tunnel mock up.
I stare at it all day thinking how good of a plug it could become. However a 5 blade main rotor would be a pain to replicate, right?

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RE: JET .... powered Bell 412 helicopter - 9/25/2012 2:49 PM   
RoLe


 

Posts: 51
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Joined: 10/25/2004
Last Login: 5/23/2013
From: Skedsmokorset, NORWAY
Status: offline 		Hello heli dudes

Check out Norwegian heli scale maniac

Totto is a really pro when it comes to build scale heli AND fly them. Should defenatly been at JP some time...

Enjoy

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Roar Leithe - Jets of Noway

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RE: JET .... powered Bell 412 helicopter - 9/25/2012 3:36 PM   
wojtek


 

Posts: 3865
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From: nj, NJ, USA
Status: offline 		The Huey on that site is awesome !!


~V~

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RE: JET .... powered Bell 412 helicopter - 9/25/2012 7:07 PM   
modtron


 

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From: Chinnor, UNITED KINGDOM
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quote:

However a 5 blade main rotor would be a pain to replicate, right?


Nothing out of the normal now a days - just takes a little time to set up correctly.

modtron
Oxford UK

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RE: JET .... powered Bell 412 helicopter - 9/25/2012 7:14 PM   
wojtek


 

Posts: 3865
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From: nj, NJ, USA
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quote:

ORIGINAL: modtron

quote:

However a 5 blade main rotor would be a pain to replicate, right?


Nothing out of the normal now a days - just takes a little time to set up correctly.

modtron
Oxford UK


agree 100% .. phasing can be set digitally, and with 3 axix gyros, they fly as if on a flybar to set the head, you can do it off of a single blade over the boom, and at 90 deg ... with aileron / elevator, just set phasing untilthere is no interaction at these points alternately based on ele/ail inputs


~V~


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RE: JET .... powered Bell 412 helicopter - 9/25/2012 7:38 PM   
JackD



Posts: 449
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Last Login: 5/24/2013
From: Berkeley, CA, USA
Status: offline 		For those of you who are scale heli fans, check out the event that my buddy gonzalo is putting together. Contact him for any info

Wojtek, why dont you come check it out??

later
jack

http://www.helicopter-scale-masters.com/

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Jack Gerardo Diaz
BVM Rep, Team Horizon, Team Jet Central

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