TURBINE OCTOBER 2011 THE VOICE OF GENERAL AVIATION www.aopa.org Nextant takes Beechjets Upscale Uber PGRADES U p. T–4 Epic Flight: Bonanzas over Greenland p. 52 Jumbo-Jet Man Sikorsky X2 strappinG into an a380 p. T–18 Choppers on speed p. 68http://www.aopa.org