A Closer Look At The Piper PA-47 Private Jet

The short life of the single engine business jet by Piper.
insider.si.edu

Standard catalog of Piper twin engine aircraft / compiled by Jim Cavanagh ; edited by Jim Cavanagh and David Sakrison

"1954-1993, 39 years of Piper twin engine aircraft, Apache to the Aerostar"-- Cover. "Published by The Piper Owner Society and Pipers magazine. siris_sil_465939 ...
Business Wire

Garmin announces TXi engine indication system for twin turboprop aircraft

New twin turbine certifications include the Cessna 425, King Air 90 series,as well as Piper Cheyenne I and II aircraft “This significant update to TXi EIS allows twin turboprop owners and operators to ...