?? belt drive tail rotor ??  
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All Forums >> RC Helicopters >> Electric RC Helis >> ?? belt drive tail rotor ??
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?? belt drive tail rotor ?? - 3/5/2005 4:30:09 AM   
bluealien


 

Posts: 15
Joined: 2/17/2005
From: ft.laudrdale, FL, USA
Status: offline 		I'm curious, what are the advantages of a belt drive tail rotor over your conventional gear driver rotor????
       Post #: 1

RE: ?? belt drive tail rotor ?? - 3/5/2005 8:36:42 AM   
chronus


 

Posts: 116
Joined: 8/24/2004
From: new zealand, NEW ZEALAND
Status: offline 		I would say belt because inline with the gears would be more efficient(vs drag of belt) as opposed to 90 degree meshing with pinions on shaft drive, so take away the drag of the belt vs the 90 degree crossovers you may end up the same as far as efficiency is concerned but i would think the belt less likely to strip the gears .
The new ikarus hel "viper" has an interesting belt drive system http://www.ikarus-modellbau.de/onlineshop/deutsch/index.php?lang=1


< Message edited by chronus -- 3/5/2005 10:17:57 AM >

(in reply to bluealien)
       Post #: 2

RE: ?? belt drive tail rotor ?? - 3/5/2005 9:45:10 AM   
acr1346



Posts: 138
Joined: 6/21/2002
From: St. Petersburg, FL, USA
Status: offline 		Less drive flex, sometimes called windup. Gear mesh drag from incorrect gear settings. stripping gears, broken
drive wire or carbon shaft in crash just to name a few.

_____________________________

You can fly the Empire State Building if the motor is big enough!

(in reply to chronus)
       Post #: 3

RE: ?? belt drive tail rotor ?? - 3/5/2005 2:29:27 PM   
bigbri


 

Posts: 597
Joined: 2/11/2002
From: salem, MA, USA
Status: online 		A big disadvantage of belts is that they take a LOT of power to spin. I believe close to a 18% power loss turning the belt.....Big advantage ease of set up and crash costs. The belt is rarely ruined in a crash unlike a tube drive. With the power of todays engines the power loss to drive the belt is not that big as issue.

(in reply to acr1346)
       Post #: 4

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