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HelicopterEngines Plugs Mufflers Fuel › YS Engines 91 ST/SR/3DS Discontinued
01-24-2013 01:23 PM  4 years agoPost 1
dan-uk

rrApprentice

Bath, England

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Perhaps I've been stuck on electric for too long but while I have been gone it seems that Yamada are discontinuing a number of their engines...

YS 91 SRS is continued and we can make it.
YS 91 ST/SR/3DS are discontinued now.
(Edit YS 56 SR discontinued, replaced with YS 60 SR)

Thank you very much.

Best regards,
Chizuko Yamada

Does anybody know what the difference is between the 91 3DS and the so-called Japanese version 91 SR-S?

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01-24-2013 02:45 PM  4 years agoPost 2
Mike Fortin

rrElite Veteran

USA

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The new YS 91SDX will be coming out very soon.

Have Rotors, Will Fly!

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01-24-2013 04:19 PM  4 years agoPost 3
REGULATER

rrApprentice

Bakersfeild, CA

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I have been running the new 91 SDX motor for several months and it is very smooth an makes more power than the 91 3DS. The motor is very easy to set the needles compaired to the YS 120 it is not as finiky ,it's more user friendly.

Mark Lattimore
Miniature Aircraft USA
YS Engines
Cool Power Fuel
MKS Servos

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01-25-2013 06:33 AM  4 years agoPost 4
BladeStrikes

rrElite Veteran

Shelby TWP,Mi

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If the new SDX makes alot more power than the 3DS,then it makes more power than the YS 120SR because my 3DS was damn close to the 120SR in power..

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01-25-2013 07:10 AM  4 years agoPost 5
dan-uk

rrApprentice

Bath, England

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Does anybody know what the Tareq special edition engine is based on? Is it a pre-release SDX?

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