This is the Great Planes ElectriFly 24mm Ammo Gear Drive

FEATURES: For 24mm Ammo Motors and most other 24mm In-runner motors
          High-precision spur and pinion gear for quiet operation
          Dual ball bearing-supported output shaft
          Bolts directly to the ElectriFly Brushless Motor Mount (GPMG1250)
          All metal construction for added durability

INCLUDES: One gear drive
          All assembly hardware
          Two different pinion gears 11T and 16T
          40T and 50T spur gears
          Collet syle prop adapter

REQUIRES: Attaching to the motor mount

SPECS:    Length: 2.29" (58.2mm) approx.
          Width:  1.32" (33.4mm) approx.
          Motor output shaft dimension: 3mm
          Prop adapter shaft dimension: 4mm to ¼-28
          Gear ratios included: 2.5:1, 3.1:1, 3.6:1, 4.5:1
                                2.5:1 with 16T pinion and 40T spur
                                3.1:1 with 16T pinion and 50T spur
                                3.6:1 with 11T pinion and 40T spur
                                4.5:1 with 11T pinion and 50T spur
          Weight: .75oz (22g)

                                                                   rmb 12-21-06
                                                                         ir/jxs