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01-26-2012 11:47 PM  6 years agoPost 1
wrongler

rrProfessor

Brewerton, New York

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What servo's are you all using for the Xxtreme?

Bill Whittaker

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01-26-2012 11:49 PM  6 years agoPost 2
Steff Giguere

rrProfessor

St-Eustache, Quebec, Canada

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I think you should get something HV and fly directly on a RX pack.

Team Synergy, Rail blades, Team Scorpion, V-Team

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01-26-2012 11:54 PM  6 years agoPost 3
RobMcQuillen

rrKey Veteran

Rochester, NY

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Futaba BLS157HV for cyclic and Futaba BLS256HV for the tail.

Rob

Rob McQuillen

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01-27-2012 12:03 AM  6 years agoPost 4
wrongler

rrProfessor

Brewerton, New York

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Did you notice in the manual they showed Savox servos?

Bill Whittaker

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01-27-2012 12:08 AM  6 years agoPost 5
wrongler

rrProfessor

Brewerton, New York

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Anyone know the minimum Torqe servo you should use?

Bill Whittaker

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01-27-2012 12:09 AM  6 years agoPost 6
mmc205

rrElite Veteran

PA - USA

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i'd go with 9252's.

***Logo 600 vbar***Henseleit TDR vbar***

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01-27-2012 12:12 AM  6 years agoPost 7
Dood

rrProfessor

Wescanson

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Look at the BLS156HV
6.0V 250 oz-in (18.0 kg/cm) 0.15 sec/60°
7.4V 292 oz-in (21 kg/cm) 0.12 sec/60°
Tower's Low Price: $159.99
And then the BLS157HV
6.0V 431 oz-in (31.1 kg/cm) 0.14 sec/60°
7.4V 514 oz-in (37 kg/cm) 0.11 sec/60°
Tower's Low Price $189.99

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01-28-2012 09:39 PM  6 years agoPost 8
Magneto 3D

rrNovice

Boston MA.

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The 156 and 157 spec out well for this heli Jr8717hv are great too,I was going to use bls 255hvs like on my 700 but went with 157s for the extra torque. As far as minimum torque id say 200in ozs and up.

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01-29-2012 12:40 AM  6 years agoPost 9
wrongler

rrProfessor

Brewerton, New York

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I have a BN set of JR 8711 HV, I'm wondering if they will do the job?

Bill Whittaker

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01-29-2012 04:24 AM  6 years agoPost 10
Band1086

rrElite Veteran

Kennewick, Wa. USA

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Uh, yeah!
i'd go with 9252's.
That's a 10 year old servo, isn't it?
Not sufficient for the big helis.

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01-29-2012 12:43 PM  6 years agoPost 11
mmc205

rrElite Veteran

PA - USA

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it was a joke. the fact that you remember them being popular though shows your age

***Logo 600 vbar***Henseleit TDR vbar***

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01-29-2012 01:21 PM  6 years agoPost 12
MrMel

rrProfessor

Gotland

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Anyone know the minimum Torqe servo you should use?
it's possible to fly it on BLS451 on 7.4v which translates to about 12-13kg

So that said, it should be doable with BLS255HV too on high voltage.

I recommend going a bit higher in torque though, I would have used the BLS156 myself (or BLS157)

In this case I have servos laying around at home (JR8717) so I do not need to purchase any since I will use them.

Gone fishing..or hunting..or something
My site: http://heli.dacsa.net - VBar videos and more

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01-29-2012 03:12 PM  6 years agoPost 13
Band1086

rrElite Veteran

Kennewick, Wa. USA

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it was a joke. the fact that you remember them being popular though shows your age
Thought so...yeah, I still have a few I think...

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01-29-2012 04:41 PM  6 years agoPost 14
mto

rrNovice

Vienna, AUSTRIA

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JR 8925HV for cyclic and Futaba BLS256HV for the tail.

(BEC 8.4V)

Xxtreme arriving on Tuesday...

Thomas

Live long and prosper :)

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01-29-2012 06:42 PM  6 years agoPost 15
blakes

rrNovice

buenos aires argentina

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and what BEC?????
i disered no lipo 2S but hv bed don't work in parallel with ESC

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01-29-2012 07:17 PM  6 years agoPost 16
RobMcQuillen

rrKey Veteran

Rochester, NY

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I'm going with the WR Super Hercules BEC

I just sent mine in for the conversion to 7.4v for Futaba Servos

http://www.western-robotics.com/her...per-BEC_hp.html

10a/15a max @14s input

Rob

Rob McQuillen

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01-29-2012 10:44 PM  6 years agoPost 17
Dood

rrProfessor

Wescanson

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I'm just thinking-- It might have been a good idea for Mikado to have designed a 4 servo CCPM swash to negate the need for super-servos.

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01-31-2012 12:21 AM  6 years agoPost 18
synodontis

rrKey Veteran

United Kingdom

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I'm just thinking-- It might have been a good idea for Mikado to have designed a 4 servo CCPM swash to negate the need for super-servos.
cut a long story short, it doesn't work and what happens is we have a game of: which servo dies first!!! because they would bind the hell out of each other!
i'd go with 9252's.
what person in their right mind would put a 9252 in a machine like this!!!??? are you barking? even better, the only reason why I see Futaba producing 9252s is probably the only reason why they still produce the 9202s - because there is still some kind of demand for a relatively cheap servo. both of these servos should preferably be consigned to history.

9255s minimum.

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01-31-2012 12:58 PM  6 years agoPost 19
mmc205

rrElite Veteran

PA - USA

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what person in their right mind would put a 9252 in a machine like this!!!??? are you barking?
Read the thread a bit more carefully. I was joking. I thought that would be obvious.

***Logo 600 vbar***Henseleit TDR vbar***

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02-01-2012 10:19 AM  6 years agoPost 20
KC

rrElite Veteran

WA

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nothing is obvious online...even if you spell it out.

I've used 9252s in an 800. Depends on the application.

Don't knock the old 9252s in an 800, they're proven (800s have been around for a long time, even 3d 800s, this is just the first one that catches the idea of a big bad better heli)

not every application needs torque or speed, some need precision and longevity..plastic gears are best for that and theyre are many APs using 9252s

I wouldnt be afraid to fly an xxtreme on 9252s, 100 oz per axis worked with mechanical FBL 680mm helis in the day. A little fifth grade math and you can impress/scare your friends too.

a ccpm 8717 at 5 volts has 15 times more torque per axis than the raptor 90 had on any of its controls 5-6 years ago. Any of the latest 700 servos will be enough.

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