737 NG TOD calculation
Hi all!
I'm a flight simulation enthusiast and I'm currently "flying" a good model of 737 NG (600-700-800-900).
Recently I had a discussion with the developers, cause they told me that after the flight planning in the FMC, the system needs the insertion of at least a destination runway (or the supposed arrival procedure) in order to be able to calculate the Top Of Descent point.
Now, reading the 737NG FCOM I did not understand exactly that, and so I'm here to ask a real 737NG pilot if that assumption is true or if the FMC can calculate the (estimated) TOD anyway knowing only the destination airport.
Thank you for your patience!