Есть такая серва GWS Naro Super 19g / 3.6kg / .07sec Digital Servo. Цифровая и быстрая.
Спустя какое то время производители прекратили позиционировать её, как серву на хвост http://www.rcgroups.com/forums/showthread.php?t=960694:GWS Naro Super 19g Digital Servo
Model: Naro Super D/Futaba
Что-то там не в порядке с контактами на щётках мотора при работе на хвосте.To all Naro Super D servo users:
Sorry to inform you that we've been reported and found out that the carbon brushes of the motor used on the Naro Super D servo might get stuck when widely operated by the "Head Locking Gyro" which was normally used on the tail of 3D helicopters.
We're trying to update the motor used on it as soon as possible. The new batch of this servo with the newly upgraded motor will be released in the coming April or May. We're also trying to make them slightly different from the current ones. A sticker might be stuck on it.
While the current Naro Super D servos still work fine with sailplanes, slope gliders and another airplanes as well, however NOT for the tail blades of the 3D helicopters.
We are very sorry for this bug.
Это действительно так важно и возможно?