Generation 2: Aircraft tug for airplanes up to 10,000 lbs. with tire diameter up to 21". Lazy Susan platform for improved safety and ease while maneuvering aircraft. Made from lightweight, high endurance materials. Approximate size: 36" x 30" x 5". Weight: 137 lbs. Powered by 2 ultra high torque electric AC brushless motors. Rechargable 25.6 volt LiFe PO4 battery with recommended charge time of 2 hours for 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, and single wheel. Recommended surface conditions: moderate terrain and moderate incline. Warranty: 1 year labor and parts.