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Revolution Models . CarbonXtreme . Midland Helicopters

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JR Heli Vibe - Airskipper - Sylphide - Venture > 8.5 ratio for vibe50
 
 
davo705
Heliman
Location: Sydney, AUS

Hey, FYI
I got bummed by aussie importer not having a main gear in stock (LONG STORY) so i put the thinking cap on.
After going thru my spares i discovered the std rapor50 main gear is only slightly smaller in diameter and 85T not the vibes 87T.
Not only is it close but the center hole for the auto hub is spot on.

Only mods needed is a spacer to set gear height, slight enlarging of the four screw holes to secure auto hub and a spacer to set auto gear height.
The pinion and motor alignment was easy to do and the gear is easy to purchase AND a different ratio too (8.5:1).

regards,
David
ps, you could also run the 11t(JR) pinion and the raptor50's other maingear(96) if you wanted to run a larger pinnion!!

Stuff.... more stuff.... stuff is good....
07-04-2008 12:00 PM
 
 
tchavei
rrProfessor
Location: Portugal

The RJX 85T main gear is a perfect fit.

Only problem is that the 8.5 ratio has already been tried with the Vibe 50 and the results were far from impressive. It bogs much easier and doesn't have the grunt of the 8.7 ratio.

I have a helical rjx main gear and pinion with clutch bell sitting in a drawer now. I might test it again one day but for now I have too much to do

Tony


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"Perfection and patience usually walk side by side..."
07-04-2008 01:37 PM
HOMEPAGE  
 
 
IYKIST
Veteran
Location: London united kingdom

If you still want to use the raptos gear why don't you use the 86T main gear .
07-04-2008 01:49 PM
HOMEPAGE  
 
 
steve 01
Senior Heliman
Location: Grand Rapids MI

Use the optional 8.7 gear ratio for the raptor the one with the white delrin gear
07-04-2008 02:22 PM
 
 
IYKIST
Veteran
Location: London united kingdom

The optional 8.7 raptor gear has a smaller pitch, so would not work
07-05-2008 04:47 PM
HOMEPAGE  
 
 
tussy
Senior Heliman
Location: Thailand

Quote 
I have a helical rjx main gear and pinion with clutch bell sitting in a drawer now. I might test it again one day but for now I have too much to do


I just put the RJX helical 8.5 main and pinion gears in,
will test one day also.
07-06-2008 01:39 AM
 
 
tchavei
rrProfessor
Location: Portugal

hahaha

You couldn't wait could you?

I hope you have good collective management, you gonna need it. Its super silent though

Tony


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"Perfection and patience usually walk side by side..."
07-06-2008 01:41 AM
HOMEPAGE  
 
 
tussy
Senior Heliman
Location: Thailand

8.5 is sweet for me. My bird is crispy.
07-07-2008 04:11 PM
 
 
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JR Heli Vibe - Airskipper - Sylphide - Venture > 8.5 ratio for vibe50
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