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HomeAircraftHelicopterThunder TigerRAPTOR 50 › Why eliminate the feathering shaft bearing that was in the V1/V2 head?
02-05-2010 09:46 PM  8 years agoPost 1
JasonJ

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North Idaho

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With all the talk about mCCPM and the X50 and all that, it reminded me of a question I forgot I had about the SE head. Why did they eliminate the bearing supported feathering shaft? What advantage or disadvantage did that bearing support have when they designed it. What is the advantage of having the feathering shaft fully float? Because I put the SE seesaw and mixing arms on a V2 head with red dampeners, is there some characteristic I may be missing out on by not having that feathering shaft fully float?

Was the center bearing eliminated because it is cheaper to build a head without it?

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02-06-2010 12:52 PM  8 years agoPost 2
Jeff polisena

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westpalmbeachflorida usa

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Feathering shaft didn't have bearings ????

I stole it ,flew it and gave it back ;)

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02-06-2010 01:43 PM  8 years agoPost 3
ECOHELI

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Connecticut

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i think he is talking about the pin that the feathering/spindle shaft goes through.

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02-06-2010 01:54 PM  8 years agoPost 4
Jeff polisena

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westpalmbeachflorida usa

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Oh I see now ,that was in the upgraded metal head SE .It probably was not a necessary upgrade for performance plus added weight.
Plus the head design is totally different so head would be bulky if bearings were added .At one time people would say spindle would flex and bind on pin but old raptor were heavy and new one is lighter and like other brands head is tighter around spindle the length of it .

I stole it ,flew it and gave it back ;)

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02-06-2010 03:46 PM  8 years agoPost 5
hornet dave

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Cedar Rapids, IA USA

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I didn't notice any flight behavior differences when I pulled out my pin & bearings years ago, i was using infinivation dampeners at the time.

The pin and bearings, at least when used with stiff dampeners, is just a waste of money and needless extra weight.

I got a fever! The only prescription is MORE 6HV

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02-06-2010 07:23 PM  8 years agoPost 6
JasonJ

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North Idaho

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The pin and bearings, at least when used with stiff dampeners, is just a waste of money and needless extra weight.
Kind of what I thought. I'm not going to take my head apart to remove them at this point. Plus is keeps dust and crap out than might get in that gaping hole, gum up the spindle and not allow it to move if it needs to. I know, overthinking it....

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02-06-2010 08:34 PM  8 years agoPost 7
Aaron29

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USA

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Why did the SDX go through the trouble of stabilizing the spindle on a pivot?

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