the United States of America and w:Union of Soviet Socialist Republics

“ Article IV Commanders of aircraft of the Parties shall use the greatest caution and prudence in approaching aircraft and ships of the other Party operating on and over the high seas, in particular, ships engaged in launching or landing aircraft, and in the interest of mutual safety shall not permit: simulated attacks by the simulated use of weapons against aircraft and ships, or performance of various aerobatics over ships, or dropping various objects near them in such a manner as to be hazardous to ships or to constitute a hazard to navigation. ”

“ Except when required to maintain course and speed under the Rules of the Road, a surveillant shall take positive early action so as, in the exercise of good seamanship, not to embarrass or endanger ships under surveillance. ”

“ At night, or in conditions of reduced visibility, or under conditions of lighting and such distances when signal flags are not distinct, flashing light should be used to inform ships of maneuvers which may hinder the movements of others or involve a risk of collision. ”