According to the AOPA the average age of single-engine general aviation aircraft in the U.S. is over 30 years old and is expected to continue increasing. One of the reasons aircraft age more gracefully than autos is the required maintenance. Aircraft are required to undergo an annual inspection by a licensed mechanic.
The inferior frontal gyri are located in the lower back portion of the frontal lobe on each side of the brain. Creativity depends on thinking skills that rely on the use of baseline knowledge combined with innovative thinking.
The parts of the brain are the cerebrum, cerebellum and the brain stem. The cerebrum makes up 90% of the brain and controls speech, memory, thoughts and all conscious actions. â¦ The cerebellum controls balance and co-ordinates complex muscle movements.he cerebrum is the largest part of the brain and is responsible  for most of its function. It is divided into the temporal lobe, the  occipital lobe, the parietal lobe and â¦ the frontal lobe. 2 people found this useful.