Helicopter lessor Milestone Aviation Group announced today that it has successfully completed the private placement of $575 million of senior secured notes. The company intends to use the proceeds to fund the continued expansion of its business and to refinance existing debt. Seventeen investors, 16 of which are new to Milestone, participated in the private placement. The deal positions Milestone “to continue delivering for our operating partners for years to come,” said company president Daniel Rosenthal.