Are these servos legal?

[EricH]

First: It doesn't matter what I think. It matters what the inspector at your event thinks.

That said I think it would be very useful for you to look at the blue box accompanying the rule, which specs out how to calculate the power for FRC applications:

Servo Max Power Rating = (Stall Torque) X (No Load Speed)

(emphasis mine)

[dotbran]

Originally Posted by EricH

That said I think it would be very useful for you to look at the blue box accompanying the rule, which specs out how to calculate the power for FRC applications

Thank you sir, you are a gentleman and a scholar. Please excuse my carelessness.

[artdutra04]

Originally Posted by EricH

That said I think it would be very useful for you to look at the blue box accompanying the rule, which specs out how to calculate the power for FRC applications:

That's incorrect. It needs to be:

(Stall Torque) X (No Load Speed) / 4

since max power output of a DC motor is at half stall torque and half free speed.

[DonRotolo]

Art, what do the rules say?

[EricH]

Originally Posted by artdutra04

That's incorrect. It needs to be:

(Stall Torque) X (No Load Speed) / 4

since max power output of a DC motor is at half stall torque and half free speed.

Yes, that is true, as I recall the curves. But, the GDC has seen fit to go straight for no-load speed and stall torque, so for this application, we don't divide by 4. If I remember correctly, there was some to-do about this last year or the year before when there wasn't a power definition at all in the rules.