Futaba S3305 High-Torque Standard Servo w/Metal Gears — Standard Size High-Torque Servo for RC Cars and Boats  [S3305]

Futaba S3305 overview

The Futaba S3305 is a standard-size high-torque RC servo with metal gears designed for use in hobby cars and boats that require a robust steering or control servo. It uses a 3-pole motor and a standard Futaba J-style connector, and the factory notes single-year warranty coverage for the unit.

The manufacturer specifies this model for use with NiCd battery packs only, and it can draw substantial current if used with other chemistries. If you choose to run this servo from NiMH or LiPo power systems, confirm your battery and power distribution can deliver the required peak amps through your receiver or a BEC to avoid browning out the system.

Mechanically the S3305 is a standard servo footprint that fits most standard mounts. It includes two ball bearings for reduced shaft play, metal gears for durability under load, and basic horn options to match common linkage setups. The package contents provide hardware for direct mounting and common horn choices for steering or throttle linkages.

For standard-size RC cars and boats that need reliable steering or throttle control, the S3305 provides a metal-gear, high-torque option in a common footprint; match your power source and mounting hardware, choose the supplied horn that gives the best mechanical advantage, and verify your receiver power can supply the peak current demand when tuning performance.