2nd Generation Tug: Portable aircraft tug for moving non-wheel fairing airplanes with a maximum gross weight of 3,400lbs and tire size: 5x5 - 6x6. Made from lightweight high endurance materials. Approximate size: 29" x 21" x 4". Weight: 60 lbs. Powered by dual ultra high torque electric motors. Rechargable 24 volt LiFe PO4 battery with recommended charge time of 4 hours and a continuous usage time of 30 minutes. Intuitive radio remote control transmitter. FHSS (Frequency Hopping Spread Spectrum); 100% interference free from other 2.4 GHz systems. Track technology provides superior traction. Anodized aluminum finish provides long lasting protection. Maximum speed is 120 ft. per minute (Approx. 1 - 1.5 miles per hour). Acceptable wheel types include non-wheel fairing, nose wheel, * tail wheel and single wheel. Recommended surface conditions: smooth terrain (low grass) and gentle incline. Warranty: 1 year labor and parts.