To maximise the performance of modern gyros (mostly used to stabilise the tail rotor of an R/C helicopter), JR has developed a wide range of special heli tail servos. These G Series tail servos are able to cope with the continuous corrections demanded by the gyro much better than a standard servo. For best performance, please use with a matching JR gyro.

Offered in low profile (for mounting in relatively thin wings) and standard cases, JR retract servos give 160 degrees of movement for operating mechanical retractable undercarriage systems.