Great Flights, Inc., an aviation firm, is considering purchasing three aircraft for a total cost of $161 million. The company would lease the aircraft to an airline. Cash flows from the proposed leases are shown in the following table. What is the IRR of this project?

Years                             Cash Flow

1–4 .............................. $23,500,000

5–7 ............................. $72,000,000

8–10 .......................... $80,000,000