A customers are the only ones who should have the authority to make final decisions.
B pilots ought to follow the customers and operators' instructions without questioning.
C pilots must ignore the effects of stress, fatigue and family pressure in order to carry out difficult missions.
D operators are motivated by the desire to fly but are unable to evaluate the potential dangers of a mission.
E operators are expected to supply the appropriate helicopter and pilot to a mission and to provide an adequate support to pilots.