No.

The 9251 is a ultra high frequency servo designed to work with the 601 gyro.

You could use the 9253 digital servo or the analog 9205 from the Futaba line, or the 8700G(PCM only) digital or analog 4735 from the JR line. I've heard too many nightmare stories about the 8417 servo in a tail rotor application. Some have had good luck; others have a pile of parts.

Ben MInor