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Thunder Tiger Raptors G4, X50,30-90, Imperio

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RAPTOR 50
Main drive gear question
Copter Doctor

rrProfessor

Enterprise/ft.rucker ,al- home of army aviation

the raptor 30 and 50 series have a main gear that is 85tooth and 86tooth. are those the only tooth count that are available?
thanks in advance

drive a rotary, fly a rotorcraft

05-18-2009 Over year old.
HOMEPAGE  
BarracudaHockey

rrMaster

Jacksonville FL

The 30 has a higher gear ratio, but I forget the tooth count off the top of my head.

The problem with the Raptor is there's no room to adjust mesh so you pretty much have to run 8.5, 8.7 or the 30's 9.6

Andy
AMA 77227
http://www.jaxrc.com

05-18-2009 Over year old.
Copter Doctor

rrProfessor

Enterprise/ft.rucker ,al- home of army aviation

well, i know the 30's clutch pinion gear is 9 tooth and the 50 is 10tooth but the main drive gear i have seen one that was 85 teeth and one 86. i wondered if there is one with a higher tooth count. i have an old 30 v1 that i tried putting the 9 tooth pinion in and it somhow isnt happy. when i power it up, there is massive vibration in the clutch shaft system. the 10 tooth shows no problems or funny sounds. the pinions i have been trying are the v2 version as i converted the clutch bell and start shaft assy to the v2.

drive a rotary, fly a rotorcraft

05-18-2009 Over year old.
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jsenicka

Elite Veteran

Hampton VA

10/85 and 9/86 are the only workable combos unless you go to the Titan gear set.
You cannot run 9/95 or 10/86

Jim Senicka
Team Manager, GrandRC Flight Team

05-18-2009 Over year old.
Heli 770

rrProfessor

Lemon Grove, Ca. USA.

30, 9T pinion and 86T main

50, 10T pinion and 85T main

50, (opt.) 11T pinion and 96T main

05-18-2009 Over year old.
Ben-T-Spindle

rrProfessor

Central Illinois

I like the optional 11-96 gearing best myself. You have more torque to the blades to prevent bogging.

... BTS

05-18-2009 Over year old.
Copter Doctor

rrProfessor

Enterprise/ft.rucker ,al- home of army aviation

thanks gentlemen.
BTS, i am trying to see whats available for the ultimate in torque. i was hoping to run the 9 tooth pinion with the 96 tooth main gear.
if thats do-able thats what i'd like.

drive a rotary, fly a rotorcraft

05-19-2009 Over year old.
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jsenicka

Elite Veteran

Hampton VA

No it is not.
You have only the 3 combos available. You cannot adjust the motor/pinion, so you cannot change mesh

Jim Senicka
Team Manager, GrandRC Flight Team

05-19-2009 Over year old.
Copter Doctor

rrProfessor

Enterprise/ft.rucker ,al- home of army aviation

as it is i am now running the 10 tooth pinion and the 86 tooth main gear. guess thats the lowest reduction ratio i have aye?
thanks gentlemen

drive a rotary, fly a rotorcraft

05-20-2009 Over year old.
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cassat

Veteran

Alberta,Canada

Can I run the OS 32 with the 50 gearing ratio just for forward flight? No fancy 3D ?
And just up the throttle curves?

05-30-2009 Over year old.
Ben-T-Spindle

rrProfessor

Central Illinois

Can I run the OS 32 with the 50 gearing ratio just for forward flight? No fancy 3D ?
That would be a super economical setup with very low power. As long as the motor does not overheat it would make a good endurance helicopter.

Also you will probably have to lower the max pitch to +/-8 so you donít pull the engine down so much that the clutch starts slipping. I once helped a beginner that had the throttle curve so low that the clutch slipped during hovering. He was thinking that the Raptor clutch design was no good until I got him to lower the pitch and raise the throttle then he was a happy Raptor owner.


... BTS

05-30-2009 Over year old.
cassat

Veteran

Alberta,Canada

Ben, Thanks for the response!
Yes, I don't go over plus 8 either. I have a rubber liner from one
of those Raptor clones..forget the name? But never tried it.

05-30-2009 Over year old.
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Thunder Tiger Raptors G4, X50,30-90, Imperio

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RAPTOR 50
Main drive gear question
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