Besides the real high end recordings of the engines, this sound also includes:
- Real Autopilot sound.
- Real Stall sound.
- Custom Wind.
- Custom Gear.
- Custom flaps.
- Custom Startup / shutdown sounds
- and ambient cockpit sound, just to bring the experience up, from within the cockpit.
The Boeing 727 is a mid-size, narrow-body, three-engine commercial jet airliner. The 727's fuselage has an outer diameter of 148 inches (3.8 m). This allows six-abreast seating (three per side) and a single central access walkway when coach-class (18 inch width) seats are installed.
More information on TSS products here.