Rating Newest Oldest. Best Answer: Once muscle contraction starts the regeneration of ATP must occur rapidly. There are three primary sources of ATP which, in order of their utilization, are creatine phosphate (CP), anaerobic glycolysis, and oxidative phosphorylation. Energy from ATP derives from cleaving of the terminal phosphate of the ATP molecule.
Under the new rules, pilots will be able to be on duty for nine to 14 hours â a number that will fluctuate based on factors such as when the pilotâs day begins and how many segments he or she will fly in one day. Pilots will be able to fly no more than nine hours during that period.
Under current rules, airline first officers are required to hold only a commercial pilot certificate and have a minimum of 250 hours of flight time. We welcome your comments on flyingmag.com. In order to maintain a respectful environment, we ask that all comments be on-topic, respectful and spam-free.