Hitecs tradition of continuous technological development continues with the new D Series. Faster and more precise than ever before these wide voltage programmable servos will answer any number of your control system needs.In addition to the obvious nautical application, waterproof servos have a lot going for them, not least in flying boats or R/C vehicles. There are many reasons to give serious consideration to the new waterproof D646WP for not only does it have all the smooth, responsive, wide voltage qualities of the D-Series, it has gills.Specification: Weight (g): 61 Speed at 4.8V (secs / 60deg): 0.24 Speed at 6.0V (secs / 60deg): 0.19 Speed at 7.4V (secs / 60deg): 0.16 Torque at 4.8V (kg.cm): 7.5 Torque at 6.0V (secs / 60deg): 9.6 Torque at 7.4V (kg.cm): 11.6 Size (mm): 42.0 x 21.0 x 40.0 Voltage (V): 4.8 / 6.0 / 7.4