How to select 170cc CCW Petrol engine for pusher engine with normal Propeller? Many customers met the problem when they select pusher propeller for CW rotation engine due to less options on the market. Today Teamaustars solved the problem with two brands. One is UAV170 for Miltary Spec with Carby/EFI versions (TBO 300-500 Hours). The other one is UFP170 team with TBO 100 Hours, both are superior than the hobby engine on the market with only TBO 20-50 Hours. Below is the videos filmed by the team to show the performance.