Even with a fast digesting protein such as whey, it can take hours for the leucine in whey to be liberated from the protein & enter circulation; therefore leucine concentrations in the plasma never spike to high levels.
Rating Newest Oldest. Best Answer: The absolute minimum age for flying alone on major airlines in 5 years old. Passengers who are ages 5-14 and are flying alone (without a companion who is at least 15 years of age) are considered Unaccompanied Minors (UM's). Passengers whose ages range from 15-17 are considered Young Adults and do not have to use the UM service, but can if they would like to.
â¢ You must pass the Private Pilot Oral and Practical (Flying) Exam. Is there an age limit for obtaining a Private Pilot rating? The Federal Aviation Regulations require an individual to be at least 16 years of age to operate an aircraft solo, and 17 years of age to obtain a Private Pilot certificate. There is not an age limitation on beginning flight lessons with a certified flight instructor. There is no maximum age for acquiring a private pilot certificate.