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02-28-2012 03:45 AM  9 years ago
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LimeyMike

rrVeteran

Michigan USA

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Concept 60 SR II
Hi Guys. Here's the Concept 60 SR II that I've been working on. (got it in a trade) Heli has a OS 91 sx fitted. But what's the longest blades that I can use, as I don't have any yet.

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02-28-2012 05:14 PM  9 years ago
Rotten40851

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Long Island NY USA

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Use 660's or 680's, You should have at least 1 1/2 inches clearance between the Mains and Tail rotor blades at thier closet point. HTH
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02-28-2012 11:07 PM  9 years ago
LimeyMike

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Michigan USA

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I'll use 680's instead of 660's cos of the bigger engine then..

Thanks..
Mike..
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03-27-2012 04:10 AM  9 years ago
Dwight

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West Chicago, IL

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Mike,

680's will be too long. The longest blade you would use safely is a 675. Since there are none made to that length you should use 660's. The Concept 60 SR was designed for the use of 660 length.

Dwight
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