70 KNOTS AVIATION offers zero hours to CPL under one roof. We have designed our notes in a manner that not only the theoretical knowledge, but also the latest questions can be practiced in the class. After, every chapter there are back questions given in the book, which are given as homework. On the next day, the doubts of previous session are discussed along with a small oral test to make sure, the entire batch has understood the concepts. If any one or two students face any problems, there doubts are dealt separately.