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.
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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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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Απόκάθε γενιάμεταξύκάθε έθνοςανθρώπων, να θυμάστενεκρών στρατιωτώνμας.”