Abstract: A UAV has two rotors. First and second sensors sense a first and second type of input respectively. The second type of input is different than the first type, the first sensor providing a first sensor output and the second sensor providing a second sensor output. The first sensor output is input to a first computer and the second sensor output is input to a second computer. The first and second computer communicate in parallel to process the first and second sensor outputs to create a control signal having a predetermined number of variables therein, each variable having an exclusive position within the signal. The first computer outputs a first variable and the second computer outputs a second variable, each output being assigned an exclusive position within the control signal. At least one of the first and second computers outputting the control signal to the rotors.