The TaxiBot is the only certified and operational alternative taxiing system currently in the market. Competing products in development by WheelTug and EGTS International are different as they are installed directly on the aircraft landing gear. This allows for shorter turnaround time but adds weight to the aircraft.[10] Though it was considered successful, the EGTS partnership was dissolved in July 2016 due to the new economics imposed by the sharp drop in the price of jet fuel, .[11]