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HomeAircraftHelicopterAlignT-REX 700N › Which boom
01-15-2010 01:24 PM  8 years agoPost 1
Helijockey

rrKey Veteran

150 miles from somewhere

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Just curious which of the two booms that come with the kit r u guys using? I'd heard that the carbon one is more likely to come loose.

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01-15-2010 01:31 PM  8 years agoPost 2
koppter

rrApprentice

Virginia

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the carbon is not a true carbon, it is a very thin layer of carbon over an aluminum interior. failures have occured because when the outer layer detaches itself, it literally slides off. the new 700s have a retention screw in the boom support to guard against such tragedy, and that seems to be working. I check my boom support screws regularly, because even with the lock nuts, they loosen, and two, i have a scratch mark on the boom so I can see at a glance if it has moved - which it never has.

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01-15-2010 01:53 PM  8 years agoPost 3
Helijockey

rrKey Veteran

150 miles from somewhere

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Ok thanks I'll use the aluminum boom.

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01-15-2010 02:47 PM  8 years agoPost 4
jschenck

rrProfessor

La Vista, NE.

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I weighted them, the carbon covered boom is about 15g lighter IIRC. The aluminum inside is noticeablely thinner. It's also slightly smaller diameter overall which is why I think they can slide out.

I did drill the tail transmission housing and put screw in there to hold the tail boom in place, my kit didn't have the hole predrilled. I use the aluminium boom and all my spares are the aluminium boom.

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01-15-2010 02:56 PM  8 years agoPost 5
RRios

rrApprentice

Orlando, Florida United States

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They are both aluminum, just one of them has a carbon fiber coating to make it look more attractive.

Orlando T.O.R.C.H.S. member
Spektrum DX7 Radio
T-Rex 700N YS91SR Hatori SB19FH
T-Rex 450SE

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01-15-2010 10:57 PM  8 years agoPost 6
Mike Bilyk

rrApprentice

Tulsa, OK - USA

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you can use either one you like, just make sure to pin the boom!

AMA # 617778
Team MasterCard

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