HEAVY LIFT UAV
We are building an 18 rotor, triply redundant drone with a total lift thrust of 119 lbf. We are proposing to have a hybrid gas electric power system that utilizes the high energy density of liquid fuel over batteries to provide the electric power for our 18 rotor hover drone over a greatly extending flight time.The drone weight is expected to be 40-45 lb with no fuel. This design assumes the drone is triply redundant in all systems including the hybrid power systems. With 14 lbs of fuel the drone could carry a 10 lb pod for over an hour assuming 10% gasoline engine brake thermal efficiency. We hope that by utilizing hybrid gas electric engine cycling we can achieve much higher engine efficiency by running the engine only at the optimal speed for 2-cycle efficiency.