NEW!!! Hitec 7955's

[km260]

I found a picture on horrizon hobbies web site. It does'nt give any tourqe values,but it did say they would be out early december. The cost 114.99 that wil be great if they have the same tourqe as the 8711's. If anyone knows the tourqe specs please let us know.

[Boulder]

All I've found is the resolution is supposed to be 2X the resolution of the 5955.

[Edge 540]

I posted this already but:
7965MG 138oz .11 at 6v
7985MG 172oz .13 at 6v
7966HB 111oz .08 at 6v
7975HB 144oz .11 at 6v
7955TG 333oz .15 at 6v
They are advertising double the resolution.

[Edge 540]

Micro (all are digital)
5055MG 20oz .14 weighs 9.5g (.33oz)
5056MG 25oz .09 weighs 12.8g (.45oz)
5065MG 30oz .11 weighs 11.9g (.42 oz)
5082MG 47oz .10 weighs 19g (.66oz)
5086MG 48oz .14 weighs 21.9 g (.77oz)

[km260]

Cool thanks i did'nt see yours my bad.

[km260]

Thats what i read to Ken. Ill have to try them out in the Dalton.

[jonkoppisch]

So they are the same torque and same speed as the 5955? I wonder if they'll actually be the advertised torque or the tbm torque???? Sounds almost like the same servo with a different name?

[Boulder]

	Quote: Originally Posted by jonkoppisch
	So they are the same torque and same speed as the 5955? I wonder if they'll actually be the advertised torque or the tbm torque???? Sounds almost like the same servo with a different name?

Except with twice the resolution, doesn't sound like the same servo. I'd be happy with the same torque if the resolution is doubled. Not too many people are running only one servo on a giant scale rudder anyway.

[jonkoppisch]

	Quote: Originally Posted by Boulder
	Except with twice the resolution, doesn't sound like the same servo. I'd be happy with the same torque if the resolution is doubled. Not too many people are running only one servo on a giant scale rudder anyway.

180 torque ounces?? That's because they're not getting the advertised torque. If they were, they could...

[Boulder]

	Quote: Originally Posted by jonkoppisch
	180 torque ounces?? That's because they're not getting the advertised torque. If they were, they could...

I'd be interested to know exactly where your info is from...you are saying the Hitec 5955 is only putting out 180 oz. in. of torque? I'm sure that same source has the actual output of other major brands as well, tested under the same circumstances?

[jonkoppisch]

OOPPPSSSS!!! I over rated it. According to tbm, it's only 152 oz-in

http://troybuiltmodels.com/servo_testing.htm

The 8711 wiped the floor with it at 280 oz-in

Before anyone goes ballistic. I am a hitec fan but I'm not happy about the loss in torque...

[jonkoppisch]

I posted this on the other thread.. It's what I'm referring to.

Now don't get me wrong. I am NOT a jr fan. What ticks me off is that you're not getting what's advertised!!!! Let me explain.

There's a guy in our club with a 35% carden extra that he just put together. Of course, everyone including me was telling him about the high torque and advantages with the hitec servos (& there are some advantages, servo reversing etc). He decided to go with hitec servos and with the 5955 on his rudder. Well, he was having a hard time keeping it in knife edge. It would be ok for the first knife edge then not be able to hold after that. He gave up and put a 8711 on the rudder and now he can knife edge + climb all day. Yes, 87's also sag some in power, but the point is that if the 5955 would have put out a majority of the power that they claim (the power that we paid for!!) it would have been plenty for his plane. Instead, his choices were either to go with a 2nd 5955 or switch to a jr.... Either way, he had to spend his $ twice...

[AHP]

Here's another interesting read re: servo testing:

http://www.servotestsite.com/page5.html


Also, for what it's worth, I have a single 5955 on a 33% rudder and it will knife edge loop just as well at the beginning of the flight as it does after several minutes of hard flying.

[jonkoppisch]

It should!!!!! Something would be seriously wrong if it didn't...

That's good but an old test as it doesn't include the 8711...

I would also ad that it depends on what the servo is going to be used for, ie. If you need the torque more or say the reversing function...

[Boulder]

I believe the issue is the advertised power is the holding power, not the pulling power.

I don't think anyone could say that the new 8711 isn't an awesome servo, that's already been proven.