CONTENTS February 2013 | Volume 56 | Number 2 | www.aopa.org/pilot AOPA PILOT 50 Shaking Things Up Of the 11,538 Vultee BT–13s built, only a few hundred survive. By Barry Schiff FEATURES 42 58 Velocity V-Twin: A piston twin that won’t spin. Glider pilot wrongly arrested for an overflight. No-Spin Twin By Dave Hirschman 66 72 Breach of Peace Time in Type At Home in the Kingdom By Sarah Brown By Mike Collins By Kathy Dondzila Warbirds practice a different way of writing in the sky. Kingdom Air Corps prepares missionary pilots for the real world. www.aopa.org/pilot AOPA PILOT | 1http://www.aopa.org/pilot http://www.aopa.org/pilot