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Century Hawk - 50NX - Raven - Predator > ((( OFFICIAL: Century Radikal G20 Gas Powered Helicopter )))

jackheli
Elite Veteran
Location: Vancouver - Canada

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Helical gears stress the engine's output crankshaft, though...

Anyone who has never made a mistake has never tried anything new
Albert Einstein

10-15-2009 06:05 AM

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the Wasp
rrProfessor
Location: Vt

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Helical gears are smoother, easier to turn, I don't think they would stress the engine more

Jim
Buzz Buzz Buzz

10-15-2009 06:46 AM

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Furious Predator
rrProfessor
Location: Kitchener, Ontario, Canada

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Helical gears are quieter, but at the cost of efficiency.

a helical gear isn't being any harder on shafts then a spur gear.

A regular spur gear puts a torque on the shaft it is attached to. While a helical gear puts both a torque, as well as a force on the Y axis along the shaft, which the bearings will take.

they are already used on helicopters such as the Align 600E (an optional gear), the JR Sylphide (other FAI machines im sure), and Century has been using helical metal gears on both the 90 and 50 sized machines for a while.

Shawn
Team Leisure-Tech
Team HelixRC

10-15-2009 06:58 AM

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Pistol_Pete
Elite Veteran
Location: Tampa Bay non-Buccaneer

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Quote
guy's the stock Zenoah Muffler has been Die Shaped, Die Cut and machine Welded and Chokes the engine,

Quote
well I'm quite sure the Stock Muffler doesn't allow the Engine to breath as well as the Century Muffler does..

Quote
I'm just saying the stock muffler is a muffler and nothing more, while Century's being a Tuned Muffler produces more power..

<><>...the lunatic is in my head...<><>

10-15-2009 05:28 PM

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jackheli
Elite Veteran
Location: Vancouver - Canada

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Quote
a helical gear isn't being any harder on shafts then a spur gear.

Sorry to disagree. Because of the slant, there is a force component that is constantly pulling the shaft up or down (depending on the side of the slant)

On many electric helicopters with helical gears the motor's exit shaft gets pulled out because of stress. It is a known issue on the 600E (which I actually own, and have tried the blue helical gears).

It doesn't mean it is bad. Just that it is not perfect. Good motors have no problem resisting the pull.

Anyone who has never made a mistake has never tried anything new
Albert Einstein

10-15-2009 07:57 PM

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Aru
New Heliman
Location: California

My Posts This: Topic Forum

Have you guys noticed? It's now available!

10-15-2009 09:34 PM

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Furious Predator
rrProfessor
Location: Kitchener, Ontario, Canada

My Posts This: Topic Forum

Quote
Sorry to disagree. Because of the slant, there is a force component that is constantly pulling the shaft up or down (depending on the side of the slant)

if you read through my post more carefully, you will notice i had mentioned this. I was referring to the force in the Y axis, maybe i would have been more clear if i said along the central axis of the shaft. But like i said, the bearings will take this force, not that there is a lot to begin with.

remember that the shafts these gears are on are already under lots of forces induced by the helicopter itself. this is why we have thrust bearings. What ever additional force is applied by the helical gear is pretty much negligible.

Shawn
Team Leisure-Tech
Team HelixRC

10-15-2009 10:38 PM

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MAXHSHV
Veteran
Location: deerriver,mn usa

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yeah i noticed.In fact i just ordered mine.

I ordered the std with the motor from bobby at XXX models.
Pretty excited to get it and get building.will be stripping one of my ravens for electronics in prepriation

this will be my first gasser, so i'm in untested waters for me,after a dozen or so nitro's and about that many eletrics i figure might as well dive in, what else is ther left to try in the heli world.I have stayed away from gassers untill now because of there poor power to weight ratio, but at 9 pounds this one should be close to a 600 nitro so should do 3D ok i think, at least my kind of 3D any ways, i like to fly big, fast and smooth . I think this machine will do that.

The only thing not sure of is vibration, I've heard gassers are bad, but the talk is this one is supposed to be pretty smooth, witch would equal lower maintence like my eletrics

. yeah I know i'm dreaming.but we will see.

To much power is never enough.

10-16-2009 02:13 AM

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Zaaaguy72
Key Veteran
Location: Grand Rapids, MN

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Go Max! I cant wait to fly your gasser to see if I should get one!

Dude, look at your tail!!!!

10-16-2009 02:17 AM

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MAXHSHV
Veteran
Location: deerriver,mn usa

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what you think after i crashed your brand new TREX 250 that i"m going to let you take out your revenge on my new G20 that i probably won't be able to get parts for awhile, you're crazy man, you can take your revenge on one of my 50 nitro's

You know you're gonna whant one, you can never let me get one up on you.

Especially when my flight times will be 30 minutes compared to your 3 min.

and when I'm out of gas i can go down to the corner store for more at $2.50 a gallon instead of $30.00

To much power is never enough.

10-16-2009 02:35 AM

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Zaaaguy72
Key Veteran
Location: Grand Rapids, MN

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You are tempting me! You know I have some credit with Bobby, I might have to pull the trigger!

Dude, look at your tail!!!!

10-16-2009 03:05 AM

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MAXHSHV
Veteran
Location: deerriver,mn usa

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Do it man.do it. come on you know you whant to , hey you can keep it at my house and ship it to my work, the wife will never have to know

To much power is never enough.

10-16-2009 03:15 AM

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Machinehead01
Senior Heliman
Location: USA

My Posts This: Topic Forum

Hey MAXHSHV...

You gonna let him move in as well when she does find out??!!

Sounds like you would have a built in flying buddy then.

Tom

Audacity Pantera PV1 FBL,MinAir Fury Extreme,Pantera PV2,Eflight CPPRO

10-16-2009 04:42 AM

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Zaaaguy72
Key Veteran
Location: Grand Rapids, MN

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That is funny, but true!

Dude, look at your tail!!!!

10-16-2009 04:42 AM

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MAXHSHV
Veteran
Location: deerriver,mn usa

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ha ha

never to many flying buddies

To much power is never enough.

10-16-2009 05:26 AM

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Zaaaguy72
Key Veteran
Location: Grand Rapids, MN

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You finally gonna strip one of the Raven's? You know after you strip it, you will buy new stuff for it, you cant stand to see a helicopter down, even if you should let it die!

Dude, look at your tail!!!!

10-17-2009 12:59 AM

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MAXHSHV
Veteran
Location: deerriver,mn usa

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you know it

To much power is never enough.

10-17-2009 01:22 AM

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Zaaaguy72
Key Veteran
Location: Grand Rapids, MN

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I have to admit, the Raven's fly as good, if not better than the Trex is a lot of ways.

Dude, look at your tail!!!!

10-17-2009 01:38 AM

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Blade_Master1
Elite Veteran
Location: Canada

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I have 2 empty frames 1 Raven and 1 Hawk. It is sad watching them sitting there "crippled

" no chance of flying

all they need is 10 servos 2 governors 2 rx's 2 gyro's 1 50 size engine.

they look so sad sitting there waiting for an organ donor if you can help these poor little heli's fly once more, Please send donations to Blademaster@Runryder.com

F-27
MSR
Terminator Raven
NX Pro
Raven50
K50
HawkPro(~rip)
Swift 550

10-17-2009 01:42 AM

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the Wasp
rrProfessor
Location: Vt

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""I have to admit, the Raven's fly as good, if not better than the Trex is a lot of ways""

now thats the 3rd person I heard/write that !!!! WOW

Jim
Buzz Buzz Buzz

10-17-2009 02:09 AM

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Century Hawk - 50NX - Raven - Predator > ((( OFFICIAL: Century Radikal G20 Gas Powered Helicopter )))

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