This is in extremely powerful sail winch servo, with dual ball bearings and Hitec S type connector. Connector is compatible with all modern receivers and wiring accessories SPECS: Indirect drive motor Water tight case Transit time .46 seconds/140° Torque 231 oz-in DIMENSIONS: 66x30x56.7mm, 2.59x1.18x2.23" (L,W,H) INCLUDES: Servo mounting screws, grommets, and eyelets 1 each of the following servo arms. Large wheel, large X, and large straight arm. 1 sail arm, 122mm overall length, 110mm center of mount to outside hole. Special Y- harness for use with BEC receivers (see comments) COMMENTS: This servo consumes 800mAh UNLOADED, Hitec states that it REQUIRES a minimum of 1200mA receiver battery, 6V (5 cell) is STRONGLY recommended. If connecting to a BEC receiver, the Rx battery must be plugged in to one side of the supplied Y harness, the servo into the other side, and then connected to the receiver. IT WILL NOT WORK IF RUN WITH A BEC RX CONNECTED IN ANY OTHER WAY!!!!! Standard Rx"s connect as normal For Sail Arm, order HRCM6362. For replacement Gear Set, order HRCM6350. 9-3-97 *8) JBR UPDATE JMM 2/8/03