Flogged Unmercifully
Yeh, Brickhistory, throw invectives instead of stating facts.
The KC-135R fleet is averaging 700 hours per year, or two hours per day.
The KC-135E fleet is averaging 450 hours per year.
The first KC-135 will reach their airframe life limit of just 39,000 hours in 2040.
Many early 747 have reached their life limit of about 90,000 hours. There are many DC-10-30s flying with over 100,000 hours.
Pax planes in long haul scheduled service average 4,000 hours+ per year. Cargo planes get much less, due at least partially to turnaround time.
The 737? It happens to share the fuselage of the 707, 727, and 757. Are there not any 707 tankers flying?
If an airline, pax or cargo, plans to stay in business, it buys or leases new or used planes appropriate to the utilization. A $200 Million plane that is parked 20 hours a day is a huge waste of capital, and is unthinkable in the for-profit world.
GB