Tail servo... which one?

Jeep_Angler · 12-08-2007, 04:36 PM

Guys,

I am looking at getting the GY401 gyro for my new TREX450. Can I run the S9650 mini or is the S9254 the way to go?

Thanks,
Greg

TheBum · 12-08-2007, 04:49 PM

The S9254 is too big for a T-Rex 450. The S9257 seems to have taken the place of the S9650 for many people, although the S9650 will happily run on 6V whereas the S9257 is not rated for 6V.

Finless · 12-08-2007, 04:50 PM

I have not tried the 9257 yet but the JR 3400G rocks for me! YES way better than a 9650....

Bob

Jeep_Angler · 12-08-2007, 05:16 PM

Thanks guys,

I didn't know the S9254 was too big for the 450... thanks!

Greg

JayDizzl879 · 12-08-2007, 08:27 PM

Hey Greg!

I've read quite a bit that the JR3400G was the the best option but I was already choking on the $55 for the 9650, and I'm not at a point where I want to spend $75 for a servo....yet

So far, I've done seven batteries with the 9650/2100t at 6v. The Tail feels Big....lots of authority. So far, I'm thrilled with the performance. After lots and lots of reading, it seems to me that the 9650 is pretty much the default servo for the 401 gyro these days too.

uniquexme · 12-08-2007, 09:30 PM

have just tried 9257, its awesome.

Jeep_Angler · 12-08-2007, 10:04 PM

Jay what's happening bro?

I see you are liking your TREX450

Being that it is Christmas time, it's not me spending the 75 bucks on a servo.

I am getting another TREX450. My current setup has the gy240 and a S9650 on it and I am having minor problems with that setup. I can't seem to get the gain exactly where it needs to be. My tail oscillates back and forth at a pretty good clip. I have tried messing the gain and no luck. It seems to go away once in the air and I jam on the rudder back and forth a few times. It is bad enough that it almost caused a crash. The only thing I can think of is cranking up my tail responsiveness. I have very slow piros and I need to remember how to do this on my DX7 (haven't messed with that in a while).

Greg

invertsick · 12-09-2007, 04:10 AM

I Am Using A 9257 On Mine, It Rocks.
But I Am Not Using A Step Down,
Do You Think This Will Hurt The Servo.?

uniquexme · 12-09-2007, 06:06 AM

sure it will fried ur servo. u can either get a step down regulator or use a UBEC, i m using UBEC to supply 5v to all my electronics.

Pla · 12-10-2007, 02:33 PM

I use s9257 with step-down regulator to 5.2V,
All other servos are on 6V

Funky · 12-10-2007, 02:39 PM

Quote:

Originally Posted by Jeep_Angler

.....I have very slow piros and I need to remember how to do this on my DX7 (haven't messed with that in a while)

The rudder endpoints in your radio (channel 4) control the piro speed. Most people leave these at 100/100.

12-08-2007, 04:36 PM	#1
Jeep_Angler Registered Users Join Date: Aug 2007 Location: Michigan	Tail servo... which one? Guys, I am looking at getting the GY401 gyro for my new TREX450. Can I run the S9650 mini or is the S9254 the way to go? Thanks, Greg

12-08-2007, 04:49 PM	#2
TheBum HF Support My HF Map location Join Date: Jul 2007 Location: McKinney, TX, USA, North America, Earth, Solar System, Milky Way, Universe	The S9254 is too big for a T-Rex 450. The S9257 seems to have taken the place of the S9650 for many people, although the S9650 will happily run on 6V whereas the S9257 is not rated for 6V. __________________ Alan (just call me "Bum"; no need to be so formal) HeliFreak Support Nankin Hobby Field Rep, Compass Support Team Helis: Compass Atom 500 (V-Bar), Compass Atom 6HV (V-Bar), Blade 130X, Blade mCPX Experience is something you obtain only after you need it. I wouldn't mind social media so much if it didn't involve people.

12-08-2007, 04:50 PM	#3
Finless Team Taco VP My HF Map location Join Date: Nov 2005 Location: Stanton, Ca. USA	I have not tried the 9257 yet but the JR 3400G rocks for me! YES way better than a 9650.... Bob __________________ "Don't Taco My Pack Dude!" To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts. *To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.* *To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.* *To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.* *To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.*

Thread Tools
Show Printable Version Email this Page
Display Modes
Linear Mode Switch to Hybrid Mode Switch to Threaded Mode

12-08-2007, 05:16 PM	#4
Jeep_Angler Registered Users Thread Starter Join Date: Aug 2007 Location: Michigan	Thanks guys, I didn't know the S9254 was too big for the 450... thanks! Greg

12-08-2007, 08:27 PM	#5
JayDizzl879 Registered Users Join Date: Jun 2007 Location: Sarasota, Florida	Hey Greg! I've read quite a bit that the JR3400G was the the best option but I was already choking on the $55 for the 9650, and I'm not at a point where I want to spend $75 for a servo....yet So far, I've done seven batteries with the 9650/2100t at 6v. The Tail feels Big....lots of authority. So far, I'm thrilled with the performance. After lots and lots of reading, it seems to me that the 9650 is pretty much the default servo for the 401 gyro these days too.

12-08-2007, 09:30 PM	#6
uniquexme Registered Users Join Date: Aug 2007 Location: Malaysia	have just tried 9257, its awesome.

12-08-2007, 10:04 PM	#7
Jeep_Angler Registered Users Thread Starter Join Date: Aug 2007 Location: Michigan	Jay what's happening bro? I see you are liking your TREX450 Being that it is Christmas time, it's not me spending the 75 bucks on a servo. I am getting another TREX450. My current setup has the gy240 and a S9650 on it and I am having minor problems with that setup. I can't seem to get the gain exactly where it needs to be. My tail oscillates back and forth at a pretty good clip. I have tried messing the gain and no luck. It seems to go away once in the air and I jam on the rudder back and forth a few times. It is bad enough that it almost caused a crash. The only thing I can think of is cranking up my tail responsiveness. I have very slow piros and I need to remember how to do this on my DX7 (haven't messed with that in a while). Greg

12-09-2007, 04:10 AM	#8
invertsick Registered Users Join Date: Nov 2007 Location: Glendale CA.	I Am Using A 9257 On Mine, It Rocks. But I Am Not Using A Step Down, Do You Think This Will Hurt The Servo.?

12-09-2007, 06:06 AM	#9
uniquexme Registered Users Join Date: Aug 2007 Location: Malaysia	sure it will fried ur servo. u can either get a step down regulator or use a UBEC, i m using UBEC to supply 5v to all my electronics.

12-10-2007, 02:33 PM	#10
Pla Registered Users Join Date: Aug 2006 Location: San Francisco bay area, CA, USA	I use s9257 with step-down regulator to 5.2V, All other servos are on 6V