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.
The total cost of earning a private pilot helicopter certificate takes into account solo flight, dual flight and ground training. The average total cost of learning to fly a helicopter was $10,000 to $15,000, according to 2008 information from the Professional Helicopter Pilots Association. In addition to these costs, you will need to pay fees to take the FAA private pilot written and practical tests.