Aircastle Limited (Aircastle) is a global company that acquires, leases, and sells high-utility commercial jet aircraft to customers throughout the world. As of December 31, 2012, the Company's aircraft portfolio consisted of 159 aircraft that were leased to 69 lessees located in 36 countries. The Company manages its fleet through offices in the United States, Ireland and Singapore.The Company invests in aircraft that the Company places on operating or finances leases. The Company also makes investments in other aviation assets, including debt investments secured by commercial jet aircraft. The Company operates in single segment being Aircraft leases. The Company owned 133 passenger aircraft, representing approximately 71% of the net book value of flight equipment, while its 26 freighter aircraft account for 29% of its portfolio value.