Ian J. Twombly books & textbook
AOPA Pilot: 100 Years of Innovation at Hartzell Propeller; The Cirrus Vision Jet a definitive Personal Jet; Flying in the Ukraine A Pilot's Paradise; Machine Gun Helicopters in Las Vegas
Thomas B. Haines Ben Moses Ian J. Twombly
AOPA /2017T Journal
The Remarkable Rudder / Advice From ATC / Career Pilot: Flying the Big Iron / Weather Geeks - (Flight Training Magazine - Volume 23, Number 12, December 2011)
Aircraft Owners and Pilots Association /2011T Single Issue Magazine / 72 Pages
AOPA Pilot Magazine, May 2016, Photography Issue, NASA Astronaut Scott Kelley, Cherry Point Marine Corps Air Station, Eric Peterson-Missionary Pilot, How to Go Drone
Thomas B Haines Alton K Marsh Dave Hirschman im Raycroft Ian J Twombly
AOPA/Aircraft Owners and Pilots Association /2016T Single Issue Magazine / 120 Pages