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.
In July of 2013, the FAA expanded the requirements for co-pilots on commercial airlines; to don those metal wings on your lapel, you'll now need an Airline Transport Pilot license -- a step above the Commercial Pilot license. You can be as young as 16 to hold a student license, 18 to hold a commercial license, and 23 to hold an ATP (Airline Transport Pilot) license. 2  You will be going through routine assessment as you progress.