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

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RAPTOR 50
Pinion and main gear question?
LonR

Elite Veteran

Macomb,Mi

I bought my Raptor 50SE V2 used and it has the 11 tooth pinion gear that is used on the Titan.Can I run a 2000 rpm head speed and not hurt the motor with this pinion gear or should I buy the 10 tooth and put it on?I never messed with pinion gears and dont know if it will over rev or max out the motor rpm's wich I dont wanna do.If im right the 11 tooth is 9.56:1 and the 10 tooth is 8.5:1 .I dont ever plan on running 620mm main blades so should I just put the 10 tooth in?Sorry if there dumb questions but im still learning and wanna keep the motor at a safe rpm,still have power with out bogging around 2000 rpm's on the head.The motor I have is the O.S 50 hyper if that helps.Thanks guys .

600LE,OS55,OS PowerBoost pipe,Align 610's,Spartan

01-25-2009 Over year old.
HOMEPAGE  
Ken Filloon

Veteran

Highland, Michigan

I use the Titan optional pinion and main gear on my raptor 50.
The ratio works out to 8.7:1 so running 2000 rpm should be fine.
I like the 8.7 gearing better with 600mm Blades.

01-25-2009 Over year old.
LonR

Elite Veteran

Macomb,Mi

Thanks you so much for the reply Ken .

600LE,OS55,OS PowerBoost pipe,Align 610's,Spartan

01-25-2009 Over year old.
HOMEPAGE  
50feet

Key Veteran

Wilmington, Delaware

If im right the 11 tooth is 9.56:1

85/10 8.5

96/11 8.7 white main gear.

FYI.. Running 2000/2100 wont prevent bogging. Loading or stalling the head causes bogging... Collective management prevents it

To trust no one is to trust everyone equally

01-25-2009 Over year old.
jsenicka

rrProfessor

Hampton VA

The Raptor 30/50 uses a fixed position motor and clutch stack. You have 3 ratios available. R30 uses 9/86 gear set for 1:9.56
The stock runs a 10/85 for 1:8.5
The titan uses an 11/96 with a different gear pitch I believe for 1:8.27.
You must always use pinion and main gear as sets. Otherwise gear lash will be off

Jim Senicka
Team Manager, GrandRC Flight Team

01-25-2009 Over year old.
Ken Filloon

Veteran

Highland, Michigan

Titan Gear ratio: (STD) : 1:8.5:4.56 / (OP) : 1:8.73:4.56

01-25-2009 Over year old.
jsenicka

rrProfessor

Hampton VA

Correct.
My bad. The Titan optional is 11:96 for a 1:8.83 ratio.
(I have been messing with the 90's a bunch and they run 8.27)

Jim Senicka
Team Manager, GrandRC Flight Team

01-25-2009 Over year old.
LonR

Elite Veteran

Macomb,Mi

My 50 has the stock main gear (85T) and the titan OP gear (11T).If I understand what you guys are saying then my gearing is wrong .

600LE,OS55,OS PowerBoost pipe,Align 610's,Spartan

01-25-2009 Over year old.
HOMEPAGE  
Ken Filloon

Veteran

Highland, Michigan

You can not run those gears together. You need the white 96 tooth main gear for the 11 tooth pinion.
It is sold as a set. 96 divided by 11 = 8.727 rounded out is 8.73.

01-25-2009 Over year old.
LonR

Elite Veteran

Macomb,Mi

I bought the heli with these gears on it and the guy didnt give me the 10T pinion gear .Thanks for the help and im off to find a 10T pinion.

600LE,OS55,OS PowerBoost pipe,Align 610's,Spartan

01-25-2009 Over year old.
HOMEPAGE  
LonR

Elite Veteran

Macomb,Mi

If anyone has a extra 10T pinion i'll trade them the 11T.

600LE,OS55,OS PowerBoost pipe,Align 610's,Spartan

01-25-2009 Over year old.
HOMEPAGE  
LonR

Elite Veteran

Macomb,Mi

I just bought a new 10T off ebay .

600LE,OS55,OS PowerBoost pipe,Align 610's,Spartan

01-25-2009 Over year old.
HOMEPAGE  
Santiago P

rrProfessor

South West, Ohio

Hi again,

When you install the 10T pinion long neck into the bearing above, make sure both surfaces are clean, and you use RED Locktite per instructions.
If you don't, the pinion long neck will spin on the bearing race and wear out, until the point it will wobble and break. I had it happen once when I omited the red Locktite

the second picture shows what happens when you ignore strange noises from the clutch bell. Funny enough I finnally acknowledge something was wrong and on the approach the clutch bell let go and I just finnished the auto without a problem, the Gov caught the overspeeding engine. lucky

Team Minicopter - PeakAircraft.com
Scorpion Motors - bavarianDEMON - Team Kontronik USA

01-25-2009 Over year old.
HOMEPAGE  
LonR

Elite Veteran

Macomb,Mi

I'll for sure install it just like you said and thanks for the help and awesome advice like allways .

600LE,OS55,OS PowerBoost pipe,Align 610's,Spartan

01-25-2009 Over year old.
HOMEPAGE  
BarracudaHockey

rrMaster

Jacksonville FL

Actually green locktite works best for securing the inner race of the bearing to the pinion and will come apart without a blow torch if you have to change one or the other.

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

01-26-2009 Over year old.
LonR

Elite Veteran

Macomb,Mi

Thanks for the reply BarracudaHockey cause I was about to ask about the green locktite cause I have a new tube of it so you allready awnsered that for me .1 more question,wich way dose the pinion gear come off?Counter clock wise or clock wise ?

600LE,OS55,OS PowerBoost pipe,Align 610's,Spartan

01-26-2009 Over year old.
HOMEPAGE  
Swoop

Elite Veteran

Newark, DE USA

Standard threads (turn CCW to remove). You may want to add a little heat in case they threadlocked it.

01-26-2009 Over year old.
LonR

Elite Veteran

Macomb,Mi

Thanks for the reply Swoop .I have a small propane heater i'll use on it but man my dumb azz took the frames allmost all the way apart when it looks like I could take the C clip out of the bottom and made life easy LOL.O-well,live and learn.

600LE,OS55,OS PowerBoost pipe,Align 610's,Spartan

01-26-2009 Over year old.
HOMEPAGE  
Swoop

Elite Veteran

Newark, DE USA

I think most, remove the starter hex socket and drop out the starter shaft out the bottom. This saves trying get your fingers up inside the frames to clip the c clip.

01-26-2009 Over year old.
Peefor

Veteran

Norfolk UK

took the frames allmost all the way apart when it looks like I could take the C clip out of the bottom
If you decide to loctite the bottom bearing to the pinion, (which is a good idea) then you have to pull the frames as you have, to get it apart. So look at it as good practice.

Pete

01-26-2009 Over year old.
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Thunder Tiger Raptors G4, X50,30-90, Imperio

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RAPTOR 50
Pinion and main gear question?
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