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Home✈️Aircraft🚁Helicoptere-AlignT-REX 500 › Helical gears?
08-24-2008 11:33 PM  12 years ago
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eggmcmuffinplz

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Los Angeles, CA

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Helical gears?
Will there ever be helical gears for the 500? Is it even worth it?
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08-25-2008 01:19 AM  12 years ago
Sean Williams

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Santa Clarita CA

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No and noTeam Avant
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08-25-2008 01:32 AM  12 years ago
smizzleablizzle

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Long Island

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you got some set. how would you know?
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08-25-2008 01:40 AM  12 years ago
Sean Williams

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Align didn't sell many helical gears for the 600e in the first place and the 500 isnt that loud in the first place. Helical only make it quieter.Team Avant
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08-25-2008 01:44 AM  12 years ago
smizzleablizzle

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really, i dont think so.
helical cut gears are not only quieter, but more efficient too. it would be a hot seller i think. no real cost difference than changing a pinion. why wouldnt they?
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08-25-2008 01:51 AM  12 years ago
Sean Williams

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No, not more efficient. I guess you could say they are more efficient because they have more teeth but you still have to change the pinion to use it regardless.Team Avant
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08-25-2008 02:13 AM  12 years ago
Heli 770

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I think a hot seller for Align would be Mod 1 gears.
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08-25-2008 02:25 AM  12 years ago
mmc205

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yes, helical gears are more efficient, as well as quieter due to many more teeth being engaged at once. I'm not sure whether it would make a significant difference on the 500, but they technically are more efficient by design***Logo 600 vbar***Henseleit TDR vbar***
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08-25-2008 02:50 AM  12 years ago
R38133

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MOD 1 I second that
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08-25-2008 10:38 AM  12 years ago
whisperdancer

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Porto, Portugal

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Helical gears are NOT more efficient, only quiter.
As there is more gear area engaged, there is more friction and there are more power transmission loses.
That's why regular cars use helical gears in the gearbox (noise), while competition cars use straight gears (performance).
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08-25-2008 10:58 AM  12 years ago
duke666

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Hampshire, UK

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MOD 1 - I third that! Perhaps we should start a new topic aimed at Align - would they listen?

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08-25-2008 12:16 PM  12 years ago
mmc205

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Most literature states that helical gears are the same efficiency as spur gears, 98-99%, but, most helical gears are made with more precision than spur gears (especially in applications like ours, where the user is apt to set up the spur gear either too loose or too tight and kills their efficiency. Therefore, in most applications, helical gears end up being quieter, and more efficient IN USE.***Logo 600 vbar***Henseleit TDR vbar***
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08-27-2008 05:36 AM  12 years ago
eggmcmuffinplz

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Los Angeles, CA

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Whats the mod 1 gear?
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08-27-2008 05:54 AM  12 years ago
"Cam"

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UK

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Mod 1 is bigger teeth.

I think the TRex 600 staright gears are mod 0.7 and the helicals are 0.6?

Mod 1? What other helis (Especially one Align copied in the first place (copied the head geometry but put the flybar in the wrong place so effectively the mixer arms were the wrong way up) and has a dinosour name) DOES have mod 1 gears?
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08-29-2008 02:22 AM  12 years ago
empty1

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chicago,ill

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Helical gears have thrust loads, don't like reversing loads, and typically lower loading. Spur or straight gears don't have these problems. Bearings would have to be done differently. With a plastic gear in the mix, I doubt the helical would be any quieter.
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08-29-2008 08:51 AM  12 years ago
whisperdancer

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Porto, Portugal

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Mikado has solve this problem with a V-shape gear.
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