The whole muscle of which the muscle fibres are a part can develop force in several different ways, e.g. with the muscle as a whole shortening, lengthening or maintaining the same length while the muscle fibres contract. List of types of muscle contraction. Isotonic (of which there are two types: concentric and eccentric)
While some flight schools will advertise that you can get a pilot's license for around $5,000, the reality is that the cost generally works out to be more. A commercial pilot's license -- bigger plane, more than twice the flight time -- generally costs $40,000 to $50,000.
Commercial pilot training time. As required by the Civil Aviation Authority of the Philippines (CAAP), the minimum number of hours of flight training is 110 hours plus 40 hours of widespread flight training as private pilot, for a total of 150 hours. An important requirement to become a licensed commercial pilot is a private pilot certificate. Meaning, you should first become a private pilot. The training time depends on your availability and choice.