I am not knowing re the Chinook having a Cruise Guide system using Sensors....must have been after my time.
In my days we had a mechanical computer on the Instrument panel that incorporated Gross Weight, OAT, and Altitude that could be used to hold plastic spoons in anticipation of a C-Ration Lunch.
Basically....just a Vne calculator.....which rarely got used in flight as we planned for Max Weight and our customary Flight Levels mandated by SOP's for Traffic Separation and the OAT which was pretty standard by Season....Monsoon, pre/post Monsoon, and Dry Season.