High Quality Content by WIKIPEDIA articles! The Piper PA-47 PiperJet was a single-engined very light jet (VLJ) that was intended to be developed and built by Piper Aircraft. However, following a change of ownership at Piper, it was decided to redesign the aircraft into the PiperJet Altaire. Despite being technically successful, the Altaire project was cancelled in October 2011 due to economic conditions.