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HelicopterGasser Model RC HelicoptersOther › What is the best tail servo for a gasser?
06-06-2010 08:36 PM  7 years agoPost 1
fixed3d

rrApprentice

Whitefish, MT.

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I currently have a Futaba 9254 on my Min Air 1005. I am using a Futaba GY401 gyro. I have noticed after a 10 minute flight that the case of the servo is warm to the touch, Raja had mentioned in one of my previous threads that the 9254 is not too good for a gasser. I know this question has been asked many times before, but, with all the new servos that are available today what do you think is the best, keeping in mind I would like to stick with my current gyro? Thanks, Dan.

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06-06-2010 09:17 PM  7 years agoPost 2
xcellgasman101

rrElite Veteran

WOODWARD, OKLA....

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Warm is NORMAL,, now HOT is a differant story, I've been running the 401/9254 combo for many years on several gassers, and YES after each 30 to 35 flight minutes, the servo is warm, but not hot, I also run the 601/9257 combo on some, I like them both, I think the 601 combo is a little better, but not by much.. XGM/VGM

John Crotts
www.soonerhelicamproductions.com

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06-06-2010 09:22 PM  7 years agoPost 3
woody37

rrApprentice

McAllen, Texas

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I have noticed after a 10 minute flight that the case of the servo is warm to the touch
I'm running a 9256 with a 611 gyro and experience this same warmth. What you are experiencing is normal. I also flew that same combo with same results on a Spectra. Like xcellgasman says, "HOT is a diffent story".

A bad day of flying or fishin is better than a good day at work!

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06-06-2010 09:59 PM  7 years agoPost 4
pgkevet

rrKey Veteran

Wales

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I had two 9256's lose their feedback pots. Local futaba service tells me that their motors aren't anywhere as robust as the BLS251 either and that is the better option according to them. They have fixed mine for me...(assuming I ever get the blasted cutch)

pgk

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06-06-2010 11:11 PM  7 years agoPost 5
GREYEAGLE

rrElite Veteran

Flat Land's

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I have the same on mine

Yup they get pretty warm. I do keep a eye on it also. I have been slightly bringing down the temps with gain adjustment's and servo ball / horn placement.

I have two different 1005's one SE conversion and the other a stock bird with a lot of up grades. Both with the same tail servo.

One I struggle with heat " SE " the other 1005 is ice cold even though it's out of the air stream. I also keep pretty detailed record's on gain's and adjustments. I pulled the records between the two - and totally different ATV's and gain's. I all depends on how much work it has to do and how busy.

At one time it was getting pretty darn hot sitting above my Zimmer so I made this little reflector sheild.

On a side note:

HI JOHN ! The Wren squadron is back and they ALL are ganging up on me !

greyeagle

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06-06-2010 11:57 PM  7 years agoPost 6
fixed3d

rrApprentice

Whitefish, MT.

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Hmmm. I would definately say it is just warm not hot. I will check it with a temp gun next time for an "offical" temp. My 1005 has the SE parts as well as a Tempest head and open tail assembly. I have a side mounted Century V-4 muffler, so no heat from it. My Align DS610 cyclic servos are always cool after each flight and the Futaba S9450 I previously had on the tail never got warm at all. If warm is normal then I guess I won't worry too much about it.

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06-07-2010 03:53 AM  7 years agoPost 7
Justin Stuart (RIP)

rrMaster

Plano, Texas

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I've got an 8900G on mine.

Avant RC
Scorpion Power Systems
Thunder Power RC
Kontronik Drives

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06-07-2010 09:07 AM  7 years agoPost 8
nowinkk

rrNovice

LandBelowTheWings

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I have an Align DS650 with an Align GP750 head lock gyro on the tail of my Century G20 and the DS650 servo was always hot after a 20-min normal flight. Was it because the servo was working harder due to the obvious vibration of the gasser? Or was it because of the higher voltage of a 2-cell Li-Fe that was used to power the electronics directly?

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06-07-2010 11:16 AM  7 years agoPost 9
pgkevet

rrKey Veteran

Wales

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Was it because the servo was working harder due to the obvious vibration of the gasser? Or was it because of the higher voltage of a 2-cell Li-Fe that was used to power the electronics directly?
Both. A stepdown would probably make a big difference

pgk

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06-07-2010 02:14 PM  7 years agoPost 10
Rojoalfa

rrApprentice

Punta de Mata, Monagas-Venezuela

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Good servo... tell us about operating voltage!

/
/

It is not a good idea to run your servo S9254 without setpdown voltage regulator. If you are doing so, be carefull....your servo may be out of service soon...very soon...

4.8 volts should be supply the the tail servo.

My spectraG 23cc has a futaba gy401/9254 with duralite Li-Ion 2S2P, 7.4 volts/5200mAH, regulator duralite 7.5 amps and we still use a stepdown. Servo gets warm but never HOT...

Tell us about your running voltage configuration..!

/

Saludos cordiales,

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06-08-2010 01:31 AM  7 years agoPost 11
nowinkk

rrNovice

LandBelowTheWings

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Was it because the servo was working harder due to the obvious vibration of the gasser? Or was it because of the higher voltage of a 2-cell Li-Fe that was used to power the electronics directly?
Both. A stepdown would probably make a big difference
Well, vibration is sure, but high voltage may not. A buddy of mine was using 2-cell Li-po directly on the electronics for his Trex 700 with all Align servos and gyro, and there was no problem thus far after months of flying. He did not step down the voltage which could be as high as 8.4v when fully charged.

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06-08-2010 01:39 AM  7 years agoPost 12
James Kovach

rrKey Veteran

canton, oh - US

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Hyperion DS20x-GCD. You can run them straight off an Life/A123 RX Pack without any stepdowns. Works well. You may need to increase the deadband of the servo to get it to work with certain gyros, so get the programmer as well, they are only $18.

*disclaimer: These are my opinions. Agree or disagree, Your Call :)
Let'r Rip Tator Chip

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06-08-2010 04:40 AM  7 years agoPost 13
fixed3d

rrApprentice

Whitefish, MT.

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My AR7100 receiver has a step down regulator built into it for 5.2 volts on the rudder and throttle channels. I run an align 2n1 reg. for the cyclics, it is set at 6 volts I believe..

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06-08-2010 10:03 PM  7 years agoPost 14
kogibankole

rrKey Veteran

albuquerque/ibadan

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jr 8900G

if im not blade bogging youll find me pack puffing

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06-09-2010 03:43 AM  7 years agoPost 15
turboomni

rrProfessor

East of the Equator

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Can a BLS251 servo be used with a 401??

Setup is everything, All my heli's can fly far better than I can pilot them

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06-13-2010 01:45 AM  7 years agoPost 16
Helizrule

rrVeteran

Lake Ariel, PA

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No, you cannot use A BLS-251 servo with a 401 Gyro. you will need the BLS-254.

One mile of road will take you one mile. One mile of runway will take you anywhere in the world.

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06-13-2010 02:42 AM  7 years agoPost 17
turboomni

rrProfessor

East of the Equator

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No, you cannot use A BLS-251 servo with a 401 Gyro. you will need the BLS-254.
Is the BLS-254 as goood / durable as the BLS-251?

Setup is everything, All my heli's can fly far better than I can pilot them

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06-13-2010 02:51 AM  7 years agoPost 18
Helizrule

rrVeteran

Lake Ariel, PA

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It appears to be. I am running the 520 and BLS-251. The 254 is designed to be used with other gyros such as the 401.

One mile of road will take you one mile. One mile of runway will take you anywhere in the world.

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06-13-2010 02:57 AM  7 years agoPost 19
turboomni

rrProfessor

East of the Equator

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. The 254 is designed to be used with other gyros such as the 401.
I gather that the 254 is still much better than the servo that comes with the 401 then.
Thanks

Setup is everything, All my heli's can fly far better than I can pilot them

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