fly by the seat of one's pants

Verb

 * 1)  To pilot an aircraft without the aid of instruments and without a flight plan, using only instinct, visual observation, and practical judgment.
 * 2)  To use one's judgment, initiative, and perceptions as events unfold in order to improvise a course of action without a predetermined plan or without the desirable data inputs to decision making.
 * 1)  To use one's judgment, initiative, and perceptions as events unfold in order to improvise a course of action without a predetermined plan or without the desirable data inputs to decision making.

Translations

 * French: /  / ...
 * Portuguese: realizar um voo cego, pilotar sem a ajuda de aparelhos


 * French:, /  / ...
 * Portuguese: com a cara e a coragem, o que dar na cabeça, de improviso,