GPMG0225   Great Planes   Gearbox T400 3:1 Ratio BB 

TECH NOTES
      This is a T400 Gearbox with 3:1 Gear Ratio and uses Ball Bearings.
                  For use with the Great Planes Park Flyers.

FEATURES: Designed for low noise and low maintenance, Park Flyer gearboxes used
            with 400-sized motors get the maximum climbing power and flight
            time from each mAh.  A bronze pinion gear is used for strength and
            a nylon main gear for quiet, low friction operation.
          Compatible with APC's light, durable Slo-Flyer Propellers.
          Utilizes smooth-running, long-lasting ball bearings.
          Lightweight, aluminum, open gear case resists damage.
          Aluminum propeller adapter and washer.
          One year warranty.

INCLUDES: One assembled T400 gearbox 3:1 ratio (includes 34 tooth nylon gear)
          One brass 11 tooth pinion gear (not carried separately)
          One 3 x 3mm pinion set screw
          Two 2.4 x 5mm phillips head mounting screws

REQUIRES: Attaching the gearbox to the motor with a small phillips head
            screwdriver.
          Install pinion onto motor shaft with a 1.5mm hex head wrench.
          Installing propeller onto shaft with a medium sized phillips head
            screwdriver. (Use threadlocking compound to hold screw tight.)
          Assembly of gearbox/motor unit onto an aircraft.

SPECS:    Overall Length: 35.0mm (1.4")(back of gearbox to front of adapter)
          Overall Height: 37.0mm (1.5")
          Overall Width:  32.0mm (1.2")
          Mounting Holes On-Center:        16mm (.67")
          Propeller Adapter Shaft Diameter: 6mm (.24")
          Propeller Adapter Shaft Length:   9mm (.35")
          Main Shaft Diameter: 4mm (.16")(the adapter mounts onto this one)

COMMENTS: For T-400 motor, use GPMG0325.
          There was some question whether this is really a 3:1 ratio.  Rest
          assured that it is because 34 teeth to 11 teeth equates to
          3.09090909 to 1 thus rounded to 3:1

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