Used with the GY401 for the tail.

Speed:        0.06 sec/60° @ 4.8V
          Torque:       47.2 oz-in @ 4.8V
          Length:       1.6"   (41mm)
          Width:         .8"   (20mm)
          Height:       1.4"   (36mm)
          Weight:       1.7oz  (49g)
          Power Supply: 4.8V (Futaba does NOT recommend using 6V)