Re: Piston Twin Good for Training and Transport -- Suggestio It's actually a Rockwell Commander, not an Aero Commander. http://www.controller.com/listings/aircraft-for-sale/COMMANDER-700/1979-COMMANDER-700/1151437.htm Call Roger, tell him you'd like to checkout the plane. Oil changes alone will be around $1000 a year if you fly 300 hours. You can run a good, clean Navajo for between $8 or 10,000 a year if your are flying the plane often. These airplanes are old, complex, break often, are are not cheap to fix. His $2300 is either based on parts only (do they have their own MX department?) or they only do the bare minimum. It has the TIO-541, Lycomings bastard engine. But you are correct, it is not geared. Alex.