Here are the specs from the web site. The gearbox/propshaft should be stamped what it is. Since the ratio states 3:1 it would be easy to figure out.

Wing Span: 39.5 in / 1000mm
Overall Length: 34.0 in / 860mm
Flying Weight: 29.0 oz / 820g
Motor Size: 480 power with gearbox
Radio: Proportional 3-channel FM
Servos: Two removable 5 wire servos that along with Rx, can be used in other speed 370 or 480-class electric aircraft
Trim Scheme Colors: Silver fuselage with black and white invasion stripes, olive drab wing top and silver wing bottom
Prop Size: 10 x 8
Speed Control: Power FET proportional ESC/receiver
Recommended Battery: 9-cell 10.8V 1000mAh Ni-MH
Aileron: Proportional
Elevator: Proportional
Throttle: Proportional
Approx. Flying Duration: 15 minutes
Approx. Assembly Time: 10-15 minutes
Gear Ratio: 3:1
Transmitter Range: 2500 feet (762m)
Available Frequencies: 6 frequencies on 27MHz
X-Port: Equipped with X-Port connector, but there's no external port, so minor modifications will need to be made to the fuselage. We will have information up on the web soon about how to do this.
Charger: Variable rate DC peak - charges 5-10 cell Ni-MH batteries
Landing Gear: No