In landing and taking off, the pilot, in the absence of radio or light controls, will at all times be responsible for using common sense and good flying judgment. If at any time there is a question as to right-of-way in landing or taking off, he shall give way immediately rather than risk an accident. In case of an aircraft accident, where responsibility cannot be determined, both or all aircraft involved will be held responsible equally and dealt with accordingly. (Ord. A-565 §8.11, 1965).