TRex 450 tail servo

[shootmeink]

I just finish rebuilding my trex 450 after a stupid indoor crash that cost me 12 stitches on 3 fingers. I finally got it airborne and was pretty confortable with it. doing pattern small aeros. But yesterday, I applied full rudder for 5 sec so the chopper spinned and when I applied opposite rudder to stop the rotation, the heli keeped spinning in the wrong direction. I managed to crash on a small piece of grass. Anyway I was using this http://www.hobbycity.com/hobbycity/s...idProduct=6314
servo on the tail.

I call my local Hobby Shop and the guy told me that this servo is garbage and that I need a .06-.07 sec tail servo.
Here's my config:
Trex450 SE V2
Telebee GR302-AD Gyro http://www.hobbycity.com/hobbycity/s...idProduct=8471
ESC: HobbyWing Pentium 40A http://cgi.ebay.com/Hobbywing-Pentiu...d=p3286.c0.m14
I've seen a lot of servo that looks ok but I wanna make sure I get the right one. I dont want to go in the tooo expensive stuff.
Thx guys

[snjbird]

The new sport kit comes with a DS420 servo for the tail, I have seen Bert Kammerer tear the field up with that combo...

[siconic]

I want to know if there is a good digital tail servo that operates at 6v or some way to step down the stock align 35 esc for the rudder servo only. I have been checking into the S9257, but I like hitec, and the S9257 only operates at 4.8v. Any suggestions? It will be going on a GY-520 gyro, a trex 450, 2.4ghz radio.

[markleyland]

Futaba 9650 or 9257. I bought the gears for the 9650 to converted it into a 9257. Used to be what everyone swore by on here when I joined and I've never looked back.

[shootmeink]

Originally Posted by snjbird

The new sport kit comes with a DS420 servo for the tail, I have seen Bert Kammerer tear the field up with that combo...

It says in the specs that its suitable for Trex250. I have a 450.

[markleyland]

9650 = 6v

[shootmeink]

Originally Posted by markleyland

9650 = 6v

So does it means it will fit with my setup(ESC, Gyro, etc...)
Sorry I'm a beginner

[onemorecrash]

yes it will I am using a 9650 with the gy401 clone gyro.
and it holds great. very happy with it.
and the the servo works on 6v with out the need for a step down.
when it comes to the tail servo buy cheap and youll regret it.

[shootmeink]

the 9650 is
SPEED: .14 sec/60° @ 4.8VSPEED: .11 sec/60° @ 6V
kinda slow ain't it?

[crypto666]

+1 on cheap is more expensive in the end.

I was looking at the ds420 myself to replace my Logitech 3100, but it was recommended to go with the ds520; some say the 420 is not enough for hard flights on a 450. They both run at 6V.
I went with the DS520 and it rocks. It rarely gets warm and combined with increased head speed it has been the end to all of my tail worries.

[markleyland]

Originally Posted by shootmeink

the 9650 is
SPEED: .14 sec/60° @ 4.8VSPEED: .11 sec/60° @ 6V
kinda slow ain't it?

Compared to what? And can you really tell the difference?

All depends on what you want to spend I guess, but all I can say is that the 9650 (now with the 9257 gears) has never let me down and runs at 6v.

[crypto666]

Originally Posted by shootmeink

the 9650 is
SPEED: .14 sec/60° @ 4.8VSPEED: .11 sec/60° @ 6V
kinda slow ain't it?

You need to take torque into account as well. If it is slower, does it have more torque? If so, you can run a longer stroke on the servo that will greatly increase your speed.

[snjbird]

Originally Posted by shootmeink

It says in the specs that its suitable for Trex250. I have a 450.

Align is selling them with the 450 Sport combo... I have seen the servo work awesome on Bert's 450 Sport, I mean AWESOME!

[shootmeink]

I finally made my decision guys and I bought a DS520 @ 45US$
I wanna thank you all for your help
I always refer to this web site for answers.
Have a great day flying!

[Wolfpackin]

I want to know if there is a good digital tail servo that operates at 6v or some way to step down the stock align 35 esc for the rudder servo only. I have been checking into the S9257, but I like hitec, and the S9257 only operates at 4.8v. Any suggestions? It will be going on a GY-520 gyro, a trex 450, 2.4ghz radio.

Hitec HSG-5084MG
Faster and more torque than the S9257, no issues on 6V.