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12-18-2007 09:53 PM  12 years ago
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ErichF (RIP)

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Sutton, NH

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BLS 251 Report
Well, I decided to retire the tired 9251 that has served my 601 well for the past two years. My LHS had the new Futaba BLS 251 brushless servo in stock, and just had to try it. The gold case matched the gold annodizing on my Caliber 90, so it was a natural decision.

Pic:

The servo was a drop in replacement for the 9251; I even used the same servo arm. I really like the new, shielded servo lead. It should hold up a lot better than the standard silicone insulated leads of typical servos when run by hot engines and exposed to fuel. I chose to wrap mine in braided sheathing, just to offer more chafe protection.

The gear train of the servo is metal, however it has zero backlash, and actually seems tighter than some nylon-geared servos I have. I'm sure these gears will wear in nicely and become silky smooth. The metal, gold annodized case is very classy, and looks well when installed on the tailboom. One thing I forgot to check was how hot the servo case was after flight...I'll get back to you on that, after I find my RayTech thermal gun.

So far so good, I'd recommend this servo. Especially if you're like me with a tried and true GY601; this servo will breath new life into it.
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12-19-2007 12:21 AM  12 years ago
RCHelicopterGuy

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Michigan

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I like the official disclaimer. I don't suppose there's any reason for that, is there?
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12-19-2007 12:29 AM  12 years ago
ErichF (RIP)

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Sutton, NH

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No Comment
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12-19-2007 12:37 AM  12 years ago
Lee O'Dell

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Gibsonville, North Carolina

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Glad to see a good report on these. Mine should be here tomorrow.

Thanks for the review !
...keep flying it 'till the last part stops moving
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12-19-2007 01:28 AM  12 years ago
Divot

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Mesa, AZ

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One thing I forgot to check was how hot the servo case was after flight
Did you every check the ole 9251 before your retired it?
A comparison would interesting.
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12-19-2007 02:02 AM  12 years ago
CaptainClunk

rrNovice

florence,SC,USA

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I have one on my Gasser with the 611. I will be using it for AP and will bet a ton of flights on it in the next couple of months Thinking of going all Brushless on the gasser!?

Will keep people posted also.

P
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