Dear Gary,
Thanks for taking the time to reply my message.
FYI, my radio system is the Futaba 3PDF. The failsafe in question is the GWS (Grand Wing Servo) FS-2. The receiver pack that I use are Metal Hydride cells. Config is 6V 1300mAH.
Hope the a/m info. is sufficient for you study. Look forward to hearing from you soon.
Regards,
Iceman27