Leasing companies increasingly recognizing the Q400 NextGen turboprop as a high-quality asset Bombardier Commercial Aircraft officially welcomed Investec Bank plc ("Investec") to the family of Q400 aircraft lessors as Thai premium low-cost carrier Nok Air and the international bank and asset manager closed the sale and leaseback of two extra capacity Bombardier Q400 NextGen airliners. The 86-seat aircraft recently joined the carrier's fleet as part of a purchase agreement for up to eight Q400