Great Planes ElectriFly Gearbox T400 3:1 Ratio BB GPMG0225

Great Planes ElectriFly Gearbox T400 3:1 Ratio BB GPMG0225

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

Features

• Great Planes ElectriFly Gearbox T400 3:1 Ratio BB GPMG0225

• 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

Specifications

• Overall Length: 35mm (1.4")(back of gearbox to front of adapter)

• Overall Height: 37mm (1.5")

• Overall Width: 32mm (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)

Contents

• 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

Requirements

• 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

Comments

• For T-400 motor, use GPMG0325.

• There was some question whether this is really a 3:1 ratio.

• Not to worry. That is because 34 teeth to 11 teeth equates to 3.09090909 to 1 thus rounded to 3:1