Piper Aircraft continues to make progress on its single-engine PiperJet. Entry to and egress from the spacious cabin are easy via a wide door. The single engine is expected to make for a smoother transition for piston pilots who may not have a lot of twin-engine experience. Details of the aircraft continue to evolve as the company prepares to fly its first conforming prototype in 2011. First deliveries are expected in the first quarter of 2013.