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HelicopterRadio - Servo - Gyro - Gov - Batt › Futaba BLS251 vs JR8900
09-06-2009 05:06 AM  8 years agoPost 1
husafreak

rrKey Veteran

Livermore, NorCal

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So it seems from reviewing many other posts that the Futaba BLS251 and JR8900 are equal for use with the Spartan 760 or Futaba 520. Please jump in if you feel stongly about one or the other. This is for my Srimok. Thanks

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09-06-2009 05:21 AM  8 years agoPost 2
FlaG8r

rrElite Veteran

Florida

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Why not hold out for the Align DS650?

http://www.align.com.tw/shop/produc...roducts_id=2981

Life is tough, it's tougher if you're stupid

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09-06-2009 05:21 AM  8 years agoPost 3
haq0901

rrVeteran

Miami, FL USA

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Both are Excellent, But BLS has a longer lifespan...

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09-06-2009 04:19 PM  8 years agoPost 4
husafreak

rrKey Veteran

Livermore, NorCal

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As advertised but I'm skeptical.

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09-06-2009 04:37 PM  8 years agoPost 5
Dr.Ben

rrMaster

Richmond, VA, USA

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Don't be.

I have two seasons of active flying with mine running gains at 90% in hover and 60% upstairs. I've seen ZERO degradation in performance in that time. They perform exactly as they did when new.

The BLS251's are worth every dime you pay for them.

Ben Minor

Team Synergy Team Futaba Team Kontronik USA
Progressive RC

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09-06-2009 05:27 PM  8 years agoPost 6
husafreak

rrKey Veteran

Livermore, NorCal

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Now that's a positive response! Y'now I've seen posts saying one guy wore out his 8900 in 50 flights and another his 251 in 75, but who know's what their setup was like? I wore out the Logictec servo in my Trex 600N but the one in my Trex 600E with the same number of flights is still going strong. So anyway, thanks.

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09-06-2009 05:39 PM  8 years agoPost 7
rexxigpilot

rrProfessor

Florida

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I have 4 SLS251's and also been using some of them for 2 seasons. Using 2S A123 RX pack with 0.8V step downs to 251's (that's over 6V). I have had the same experience as Ben. The 251 is a flawless rudder servo. If you really want an 8900, I'll sell you one cheap.

Your Srimok should have the best tail servo there is - the 251. I put a 251 in my Srimok.

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09-07-2009 12:08 AM  8 years agoPost 8
Dr.Ben

rrMaster

Richmond, VA, USA

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Rest assured I wouldn't sign my name to the recommendation if I did think they were that good. IMO, the BLS251 is one of the single greatest assets to t/r control system performance, reliability and longevity that has come along in years.

Ben Minor

Team Synergy Team Futaba Team Kontronik USA
Progressive RC

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09-07-2009 04:27 AM  8 years agoPost 9
merlin3

rrKey Veteran

dayton, ohio

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go bls 251, my friend and i have identical 700s with mini gs and his had an 8900 and mine 251. i say had because he now has a 251. he couldnt run the gain any higher than 60 percent or it would overheat and stop whereas on the 251 i run 95 percent gain and its so much smoother and consistent.

Justin - Team Horizon, Team Byron
2-700x, Trex 700n, small helis

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09-07-2009 09:39 AM  8 years agoPost 10
RLHeli

rrApprentice

Auckland - New Zealand

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Not a good ideal coupling with ALIGH DS650 as it is 1520us only while the mentioned gyros are capable of 610us... but I know nothing...

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09-07-2009 12:54 PM  8 years agoPost 11
AaronJohnson

rrElite Veteran

mason,MI

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I put just under 200 flights on my 8900G and it was severely starting to lose performance. Drifting, twitching, and when pushing it really hard the tail was just not happy. I put a BLS 251 in and have the same number of flights on it now, same gain setting, and it works as good as the day it was new. The tail is smoother then the 8900G ever was. Also I noticed I use 30-50 less milla-amps per flight with the BLS251. Now I can honestly say I am a JR man, have been for a long time now but the BLS251 is just flat out better in every way. Not that the 8900G is bad but the BLS is just better.

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09-07-2009 05:11 PM  8 years agoPost 12
lfalsetto

rrKey Veteran

COLORADO

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Is it my understanding that your are running the 251 without a regulator? I did not know that you could run it without a regulator?

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09-08-2009 01:42 AM  8 years agoPost 13
AaronJohnson

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mason,MI

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I wouldnt. I run mine at 5.2V

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09-08-2009 02:29 AM  8 years agoPost 14
husafreak

rrKey Veteran

Livermore, NorCal

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I'm all set now! Gonna run the BLS 251 off of either my Futaba 520 or Spartan 760 gyro. Probably the Spartan that's in my Mini Titan SE so I can put the very small Futaba gyro on it. A123 pack with Spectrum 7100R will send 5.2V to the gyro and 6.6V to cyclic. I love JR servos too, been very good to me over the years. So I will have 8717 on cyclic. The Heliproz deal 3 8717 + Spectrum 7100R for $470 was too good to pass up!

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09-08-2009 04:40 AM  8 years agoPost 15
Git

rrVeteran

Brunei

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i ordered a ds650.. should be here in a couple of days

let see how they perform on my spartan

Alees Rush 750

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HelicopterRadio - Servo - Gyro - Gov - Batt › Futaba BLS251 vs JR8900
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