This 3D model was originally created with Sketchup 8 and then converted to all other 3D formats. Native format is .skp 3dsmax scene is 3ds Max 2016 version, rendered with Vray 3.00 Imported from FlightGear. Give credit to me, because the original author is unknown. I added doors, made everything groups/components, smoothed, and colored. The landing gear are tweakable: delete either the gear and the doors or the closed doors. Both work great.