Bob Lenahan
What is, or is there, any real difference between the full motion B-727 sim used in 1970 compared to a Level-D sim of today?
I think that you'll find that in those days the Sims had a 3 or 4 axis motion system. Nowadays they have a 6 axis system (roll, pitch, yaw, heave, surge & sway). Some even have a secondary motion system on top of the primary one to simulate vibrations etc (helicopter ones)
lefthanddownabit
Transport delay less than 150 milliseconds
This means that when the controls are moved in a particular axis (roll, pitch, yaw), the visual sytem as well as the instruments (ADI) must respond within that time. Level B is 300 ms
SW