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TrutrakTech
03-06-2009, 08:27 AM
Just thought I'd put this info here as well. These are the nominal torque outputs of each of servo sizes.

-B servo -- 30 in lb
-C servo -- 40 in lb
-D servo -- 50 in lb
-HB servo -- 60-100 in lb (60 in-lb nominal, we can adjust it up to around 100 for certain applications).

Residual torque value (resistance)

-B servo -- ~0.8 in lb
-C servo -- ~1.2 in lb
-D servo -- ~1.8 in lb
-HB servo -- 0 in lb (This servo has a clutch in it that completely disengages the motor.)
SMO
03-06-2009, 09:09 AM
What is the relationship between the torque of the servo and the resistance felt in the control system? Do you have any resistance numbers available?
TrutrakTech
03-06-2009, 09:25 AM
What is the relationship between the torque of the servo and the resistance felt in the control system? Do you have any resistance numbers available?

I sure do. I'll add them to my first post. Thanks!
Sticky1
05-30-2009, 02:02 PM
What is the rating of a....8100-040 DSP CCAP

I am trying to figure out where to place the pitch servo in my seawind. I really don't want to put it in the normal area since it takes up room already used.

I need about 10-15lbs to pull the yoke all the way back although I know I will need less in the air.
PhantomPholly
05-31-2009, 05:41 PM
What is the rating of a....8100-040 DSP CCAP

I am trying to figure out where to place the pitch servo in my seawind. I really don't want to put it in the normal area since it takes up room already used.

I need about 10-15lbs to pull the yoke all the way back although I know I will need less in the air.

Actually, I would expect to have more resistance in the air than on the ground (attempting to push the elevator further into the onrushing air).

Still, it sounds pretty well balanced. Does the Seawind use weights or springs for trim? That could affect your maximum torque requirement.
TrutrakTech
06-01-2009, 07:53 AM
What is the rating of a....8100-040 DSP CCAP

I am trying to figure out where to place the pitch servo in my seawind. I really don't want to put it in the normal area since it takes up room already used.

I need about 10-15lbs to pull the yoke all the way back although I know I will need less in the air.

The C servos all output 40 in-lb. The capstan attachment gives it a little more of a mechanical advantage, so you shouldn't have a problem. Thanks!