Aging planes are expected to be replaced by more fuel-efficient models, behind the initial cost of the airplane, fuel costs are the second largest cost associated with airplanes.

FORBES: Boeing Flies To $91 Selling Fuel Efficient Jets

This compares to 118 commercial airplane deliveries in the second quarter of 2011.

FORBES: Boeing Earnings Gets Tailwind From Strong Commercial Deliveries

Loggers and airplane pilots had the second and third deadliest jobs, respectively.

FORBES: America's Deadliest Jobs

Airplane or helicopter pilot was the second most common dream jobs among men in the U.S.. Almost 7% of male respondents said they dreamed of flying.

FORBES: What Common Dream Jobs Actually Pay