Futaba
Futaba S3170G For Airplanes (S.BUS)

Manufacturer: Futaba Corporation
Model: S3170G
Digital servo for small retractable landing gear, for airplanes
This is a digital servo for airplanes designed specifically for small retractable landing gear. It requires a 4.8-6.0V power supply and cannot be powered by batteries.
Features
A dedicated servo for retractable landing gear features a planetary gear mechanism with a 180° operating angle and a metal final gear for enhanced durability and performance.
Speed: 0.57 sec/60° (4.8V) / 0.47 sec/60° (6.0V)
Torque: 7.0 kgf・cm (4.8V) / 8.5 kgf・cm (6.0V)
Dimensions/weight: 34.5 x 16.0 x 25.8 mm/26 g.
*Power supply: 4.8 to 6.0 V (batteries cannot be used).