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Post Info TOPIC: Tsheten's AW-95 model


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Posts: 3381
Date: Apr 5, 2012
Tsheten's AW-95 model
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Tsheten sent me these pictures via email since he couldn't upload to the forum due to technical difficulties.

Looks great, Tsheten! wink



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Brony rotorhead
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Veteran Member - Level 2

Posts: 223
Date: Apr 6, 2012
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Hi Stingray,thanks for uploading these images......and thanks...

Regards
Tsheten8

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Posts: 317
Date: Mar 11, 2013
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I've seen the AW 95 in this configuration. Two changes that I noticed that most builders make are the the power shaft for the input pully to the tail rotor V belt was extended up a little more to add an additional bearing in a small cross section between the airframe struts that run up to the rotor system area. The other change is a "follower" system half way down the tail rotor drive belt to prevent excessive belt back lash/flapping. I found a video of a guy in Europe that built his own version of the AW 95.

I also found a place to buy a right angle gearbox for a tail rotor should you chose to upgrade to a gear driven. About 250 American dollars after shipment costs. better than 2000.00 dollars like the place in Australia or Vortech. Both of whom over charge for their parts. A place called superior gear. There is a guy in Ohio that rebuilt a Scorpion Helicopter. The original tail rotor was belt driven like the AW 95 first concept or some call it the "Choppy". Anyway this guy upgraded to a gear driven TR. The gear box was a 1900 RPMs input shaft with and out put shaft RPM 0f 2800 RPMs It's rated for up to a 54 HP max input with a restricted running temperature of no greater than 200F degrees . This guy says that his TR temp averages about 150 F degrees , so he's ok. No issues so far.

http://www.superiorgearbox.com/

 

 

 



-- Edited by davh12 on Tuesday 12th of March 2013 01:56:08 AM

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Veteran Member - Level 3

Posts: 317
Date: Mar 11, 2013
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You can see the orange squre bracket assembly. You might be able to contact this guy and ask him for details on that upgrade. His CG looks a bit off and he needs to tweak his TR pitch...one foot looks as if it holds more pedal pitch than the other.

 



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Posts: 317
Date: Mar 11, 2013
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He has also modified the rotor hub and it looks like a sort of fly bar assembly. His version of course.



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Posts: 317
Date: Mar 11, 2013
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I'm not sure if he has a free wheeling unit/sprag clutch, which means he'll fall from the sky if his engines stalls. And the 2nd video, I'm not sure what it is.

 

 



-- Edited by davh12 on Tuesday 12th of March 2013 02:14:04 AM

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Posts: 317
Date: Mar 11, 2013
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I'm not sure if he has a free wheeling unit/sprag clutch, which means he'll fall from the sky if his engines stalls.

 

 

 

 



-- Edited by davh12 on Tuesday 12th of March 2013 02:15:13 AM

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Posts: 317
Date: Mar 11, 2013
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Not sure about this one.

 



-- Edited by davh12 on Tuesday 12th of March 2013 02:15:59 AM

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Posts: 223
Date: May 6, 2013
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Dave,thanks for bringing this thread back to life..))

regards

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