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.
Seniority also dictates the sorts of planes a pilot flies, as well as his or her schedule. Pilots who are relatively new to the airline will fly reserve, meaning they do not have a set flying schedule. A reserve pilot may have on call duty for 12 hours or longer at a stretch. In this time, the pilot has to be packed and ready to fly, because the flight scheduler might page them at any moment.